Using Active Ranging Patents (Class 348/348)
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Publication number: 20120281132Abstract: An image capturing device includes: a pre-capturing module which captures an imaging target at each of different focus positions in a predetermined focus range and outputs, as a capturing result, a plurality of pre-captured images lower in resolution than the output image; an object sharpness evaluating module which computes a sharpness level of each of the pre-captured images captured by the pre-capturing module; a focus varying range determining module which determines a focus position varying range within the predetermined focus range based on sharpness levels computed by the object sharpness evaluating module, such that a signal-to-noise ratio of the output image is greater than or equal to a predetermined threshold; and an image capturing module which captures the imaging target while varying the focus position according to the focus position varying range determined by the focus varying range determining module, and outputs the output image as a capturing result.Type: ApplicationFiled: November 7, 2011Publication date: November 8, 2012Inventors: Yasunobu Ogura, Pongsak Lasang, Sheng Mei Shen
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Patent number: 8305485Abstract: Method of using an image capture device to identify range information for objects in a scene includes providing an image capture device at least one image sensor, a coded aperture, a first optical path including the coded aperture and a second optical path not including the coded aperture; storing in a memory a set of blur parameters derived from range calibration data for the coded aperture; capturing a first and second image of the scene, corresponding to the first and second optical paths, the second image having equal or higher resolution than the first; providing a set of deblurred images using the first capture image and each of the blur parameters from the stored set; using the set of deblurred images to determine the range information for the objects captured by the first optical path; and using the range information to control the image capture or processing of second image.Type: GrantFiled: April 30, 2010Date of Patent: November 6, 2012Assignee: Eastman Kodak CompanyInventors: Paul J. Kane, Rodney L. Miller, Sen Wang
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Patent number: 8305484Abstract: According to the present invention, when a lens is moved in an operation of an operation device, the focal information calculated for each travel position of the lens can be graphed corresponding to the lens position, and the focal information about the current lens position can be identified from the focal information about another position. Thus, a manual focus adjustment can be made while checking the graph. Especially, since the history of the focal information calculated for each lens travel position can be graphed, the lens can travel to the lens position in which a desired peak can be obtained when there are a plurality of peaks of focal information on the graph.Type: GrantFiled: November 16, 2010Date of Patent: November 6, 2012Assignee: Fujifilm CorporationInventor: Manabu Hyodo
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Patent number: 8300135Abstract: A digital image processing apparatus and a method of controlling the same. When the composition of a subject displayed on a display of the apparatus is changed during application of a first shutter-release signal, a current auto-focus (AF) region moves along with the subject and displayed on the display at the same time as the subject. The apparatus can further display an initial AF region on the display in a manner distinguishable from the current AF region. After the composition of the subject is changed, while the current AF region moving along with the subject is being displayed on the display, when the application of the first shutter-release signal is interrupted, an AF region is reset as the initial AF region. Also, an image file can be generated and stored after application of a second-shutter release signal which occurs after application of the first shutter-release signal.Type: GrantFiled: September 5, 2008Date of Patent: October 30, 2012Assignee: Samsung Electronics Co., Ltd.Inventor: Sung-shik Koh
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Patent number: 8294809Abstract: The present invention determines the dimensions and volume of an object by using a novel 3-D camera that measures the distance to every reflective point in its field of view with a single pulse of light. The distance is computed by the time of flight of the pulse to each camera pixel. The accuracy of the measurement is augmented by capture of the laser pulse shape in each camera pixel. The camera can be used on an assembly line to develop quality control data for manufactured objects or on a moving or stationary system that weighs as well as dimensions the objects. The device can also ascertain the minimum size of a box required to enclose an object.Type: GrantFiled: October 1, 2009Date of Patent: October 23, 2012Assignee: Advanced Scientific Concepts, Inc.Inventor: Roger Stettner
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Patent number: 8284293Abstract: An image sensor has an array of image sensor pixels. Each image sensor pixel may have a gradient index lens formed in a passivation layer. The gradient index lens may be a converging or diverging gradient index lens. The gradient index lens may have a gradient index profile that is smooth or a gradient index profile having distinct regions of lower or higher refractive index. Regions of lower refractive index may be formed from ion implantation in the passivation layer. Each pixel may also have a polymer microlens, a color filter, a dielectric stack, and a photosensitive element in a substrate.Type: GrantFiled: July 7, 2010Date of Patent: October 9, 2012Assignee: Aptina Imaging CorporationInventor: Andrea Del Monte
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Patent number: 8279324Abstract: A control method of detecting an object image to be focused from a sensed image, setting a focus detection area in detecting an in-focus state of a photographing optical system, and exercising control such that the photographing optical system is moved based on a signal output in the focus detection area to carry out focus control, wherein, in the setting of the focus detection area, a first focus detection area corresponding to an object to be focused detected from the sensed image and a second focus detection area which is larger than the first focus detection area are set, and in the focus control, control is exercised such that the photographing optical system is moved based on output signals in the set first and second focus detection areas.Type: GrantFiled: July 9, 2008Date of Patent: October 2, 2012Assignee: Canon Kabushiki KaishaInventor: Hitoshi Yasuda
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Patent number: 8270824Abstract: The attachment lens device AL, 12 can be mounted between a master lens ML, 12 having a focusing lens group that moves in an optical axis direction for focusing purposes and a camera body 11 having an imaging device. The attachment lens device AL, 12 comprises a communication portion 35, 135 communicatable with the master lens ML, 12 and the camera body 11, a wobbling lens group LW capable of reciprocally wobbling in the optical axis direction for detecting a direction of moving the wobbling lens group, and a wobbling drive portion 125 for driving the wobbling lens group Lw.Type: GrantFiled: February 15, 2011Date of Patent: September 18, 2012Assignee: Olympus Imaging Corp.Inventors: Kazuya Nishimura, Hideyuki Nagaoka
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Publication number: 20120229646Abstract: A dynamic reference range image generation method comprises providing a reference range image, to be dynamically updated, composed of pixels, each of which contains a reference range value. An acquired range image is provided, the pixels of which contain each a measured range value, the measured range values being updated at a predetermined rate. Pixels of the acquired range image containing an invalid measured range value are accordingly marked. The measured range value of each pixel of the acquired range image not marked as containing an invalid measured range value is compared with the reference range value of the corresponding pixel of the reference range image. The reference range value of that pixel of the reference range image is updated e.g.Type: ApplicationFiled: September 16, 2010Publication date: September 13, 2012Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Frédéric Grandidier, Bruno Mirbach, Thomas Solignac
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Patent number: 8253845Abstract: First lens-group is composed of a negative lens and a positive lens. When magnification is changed from wide end to tele end, a distance between first lens-group and second lens-group increases, and a distance between second lens-group and third lens-group decreases. Specifically, first lens-group moves toward the object side, second lens-group moves along a path convex toward the image side, third lens-group monotonously moves only toward the object side, and fourth lens-group moves along a path convex toward the object side. Further, the following formulas are satisfied: 0.3<X1/ft<0.5 ??(1); and 5.0<f1/fw<7.0 ??(2), where X1: the amount of movement of first lens-group when magnification is changed from wide end to tele end, ft: the focal length of the entire system at tele end, f1: a combined focal length of first lens-group, and fw: the focal length of the entire system at wide end.Type: GrantFiled: February 8, 2011Date of Patent: August 28, 2012Assignee: Fujifilm CorporationInventor: Taiga Noda
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Patent number: 8248516Abstract: A focus adjustment apparatus includes a detection unit configured to detect an object image to be focused from a captured image, a setting unit configured to set a focus detection region in the captured image, and a focus adjustment unit configured to adjust an in-focus state of an imaging optical system depending on AF evaluation values based on output signals from the focus detection region. First and second focus detection regions are set for a region which has followed the object image detected and a region which does not follow the object image detected. The focus adjustment unit performs a weighted addition of the AF evaluation values based on the output signals in the first and second focus detection regions at ratios depending on at least either a size of an object image within a screen, a position of the object image within the screen and a shooting mode.Type: GrantFiled: June 26, 2009Date of Patent: August 21, 2012Assignee: Canon Kabushiki KaishaInventor: Kazunori Ishii
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Patent number: 8237849Abstract: An image-pickup apparatus is disclosed which is capable of realizing a focus-effect function in a constant time without being influenced by contrast of an object or the position of a focus lens. The apparatus includes a signal generator which generates a focus evaluation signal, a detector which detects information corresponding to an object distance, and a controller which performs focus lens control on the basis of the focus evaluation signal and focus lens control on the basis of information corresponding to the object distance. The controller determines a direction and a velocity in which the focus lens is moved toward an in-focus position on the basis of the information corresponding to the object distance in the focus lens control according to the focus-effect function. The controller performs the focus lens control on the basis of the focus evaluation signal after the focus lens is moved in the determined direction.Type: GrantFiled: August 3, 2007Date of Patent: August 7, 2012Assignee: Canon Kabushiki KaishaInventor: Shuya Tanaka
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Patent number: 8237841Abstract: A compound-eye imaging device comprises an imaging device body having 9 optical lenses and a solid-state imaging element for imaging unit images formed by the optical lenses. Assuming that the combination of each of the optical lenses with a corresponding divided area of the solid-state imaging element to image each of the corresponding unit images is an imaging unit, thereby forming multiple imaging units, the respective imaging units have randomly different optical imaging conditions. For example, the focal lengths of the 9 optical lenses are set to have random values in which the optical lenses are arranged to have random distances between adjacent ones thereof in a direction parallel to the major surface of the solid-state imaging element. This compound-eye imaging device substantially prevents unit images formed by respective imaging units from being the same, making it possible to easily increase the definition of a reconstructed image.Type: GrantFiled: March 2, 2009Date of Patent: August 7, 2012Assignee: Funai Electric Co., Ltd.Inventors: Jun Tanida, Ryoichi Horisaki, Takashi Toyoda, Yoshizumi Nakao, Yasuo Masaki
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Publication number: 20120182448Abstract: An electronic device including a camera adapted to capture images is provided. The camera includes a lens having a first focusing state and a second focusing state; an image sensor adapted to capture a first image of an object in the first focusing state and a second image of the object in the second focusing state. The electronic device further includes a memory configured to store instructions; and a processor coupled to the memory and the camera, wherein the processor is adapted to determine a distance to the object based on the first image and the second image. A lens system including an actuator to modify a configuration of the lens system is also provided, having a first and second focusing state; a memory; and a lookup table to estimate a distance from the lens system to an object.Type: ApplicationFiled: January 18, 2011Publication date: July 19, 2012Applicant: Tessera Technologies Ireland LimitedInventors: Noy Cohen, Gal Shabtay
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Patent number: 8223245Abstract: Disclosed is an imaging lens capable of improving weatherability, reducing performance degradation, and obtaining an optical performance excellent across a wide wavelength region from the visible wavelength region to the near-infrared wavelength region. An imaging lens for forming an image of visible and near-infrared light includes, in order from the object side: a front group that has a positive power; an aperture stop; and a rear group that has a negative power. In the imaging lens, the rear group includes a negative meniscus lens that is disposed closer to the object side and has a surface convex toward the object side, and a biconvex lens that is disposed closer to the image side. In addition, all the lenses constituting the imaging lens are single lenses.Type: GrantFiled: May 25, 2010Date of Patent: July 17, 2012Assignee: Fujifilm CorporationInventor: Yu Kitahara
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Digital camera which switches the displays of images with respect to a plurality of display portions
Patent number: 8223242Abstract: A digital camera of the present invention enables a lens unit to be attachable/detachable with respect thereto. The digital camera of the present invention includes a plurality of display portions, a control portion that causes the plurality of display portions to selectively display the image data generated by the image pickup element or image data obtained by subjecting the image data generated by the image pickup element to predetermined processing as a moving image in real time, and a setting portion capable of switching displays of images with respect to the plurality of display portions. After the control portion causes the lens unit to perform an autofocus operation in accordance with setting of the displays of the images with respect to the plurality of display portions by the setting portion, the control portion switches the displays of the images with respect to the plurality of display portions.Type: GrantFiled: September 11, 2009Date of Patent: July 17, 2012Assignee: Panasonic CorporationInventors: Hiroshi Ueda, Kenichi Honjo, Naoto Yumiki -
Patent number: 8218063Abstract: An image capturing apparatus previously captures a calibration image that serves as a reference when a distance to an object is calculated, and calculates, when an image of the object is captured using a monocular camera, the distance from the lens of the camera to the object using the calibration image and the distance from the lens of the camera to the calibration image. In this case, the image capturing apparatus measures the distance from the lens of the camera to one or more arbitrary points on the object, calculates the diffuse reflection coefficient of the object using the measured distance, the luminance on each of one or more arbitrary points, the distance to the calibration image, and the luminance, and calculates the distance to the object from the lens of the camera to the object using the calculated diffuse reflection coefficient.Type: GrantFiled: August 25, 2010Date of Patent: July 10, 2012Assignee: Fujitsu LimitedInventor: Seiya Shimizu
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Publication number: 20120154668Abstract: An image processing apparatus (10) includes: an imaging unit (11) which captures an image; a focal range control unit (12) which changes a focal position and a depth of field of a captured image by controlling an imaging device or a focus lens in the imaging unit (11); and a distance measurement unit (14) which measures a distance to a subject, from a degree of blur in each of n images (where n?2) captured by the imaging unit (11) controlled by the focal range control unit (12) and having focal ranges different from each other.Type: ApplicationFiled: June 16, 2011Publication date: June 21, 2012Inventors: Masayuki Kimura, Hajime Nagahara
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Publication number: 20120154667Abstract: An external AF focus detecting apparatus capable of achieving both good focus detection accuracy for a subject in a short distance and an appropriate amount of processing for a subject in a long distance is provided. In the case where the distance to the subject is less than a predetermined threshold value, with respect to accumulation pixels SA5 to SA25 selected in one of a pair of line sensors, pixels are selected in the other line sensor so as to include more pixels in the direction of shift of an optical image of a field of view, namely, pixels SB5 to SB29 are selected as accumulation pixels. Alternatively, pixels included in a range obtained by shifting by a predetermined number of pixels from the range of the accumulation pixels that have been selected in the one line sensor are selected as the accumulation pixels in the other line sensor.Type: ApplicationFiled: November 30, 2011Publication date: June 21, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Kengo Takeuchi
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Patent number: 8203645Abstract: An image-pickup apparatus includes an image-pickup element including first pixels photoelectrically converting an object image formed by a light flux from an image-pickup optical system and second pixels including plural focus detection pixels photoelectrically converting a light flux divided from the light flux from the image-pickup optical system, a focus detector detecting a focus state of the image-pickup optical system based on outputs from the second pixels, a frequency component detector detecting a spatial frequency component of the object image formed on the first pixels, an image generator generating, based on outputs from the first pixels, a partial image corresponding to the second pixels of an image obtained by an output from the image-pickup element. The apparatus includes a controller switching whether or not to cause the image generator to generate the partial image according to the spatial frequency component detected by the frequency component detector.Type: GrantFiled: August 1, 2008Date of Patent: June 19, 2012Assignee: Canon Kabushiki KaishaInventor: Masahiro Kawarada
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Patent number: 8199246Abstract: Provided is an image capturing apparatus, including: an optical system causing a light receiving section to receive, in substantially the same spread, light from positions within a predetermined range of positional relation, and has different optical transfer functions for light from different positions lying within the predetermined range; a storage storing each process parameter for correcting the effect of an optical transfer function on the captured image, in association with a condition regarding a positional relation between a subject and the optical system to be satisfied in performing correction using the process parameter; an obtaining section obtaining positional information indicating a positional relation between a subject and the optical system; and a selecting section selecting a process parameter stored in the process parameter storage in association with a condition that the positional relation indicated by the positional information obtained by the positional information obtaining section satType: GrantFiled: May 29, 2008Date of Patent: June 12, 2012Assignee: FUJIFILM CorporationInventor: Shuji Ono
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Patent number: 8169532Abstract: A portable electronic device for measuring a distance of an object by performing an auto focus function and a distance measuring method are provided. The portable electronic device includes an image pickup module and a distance measuring program. The image pickup module includes a lens, an optical sensing element and a transmission mechanism. The distance measuring program includes a distance look-up table. The distance look-up table is established by correlating a plurality of lens moving step numbers with corresponding object distance values. The auto focus function is performed to capture an image of an object by the image pickup module, thereby obtaining a current lens moving step number required for performing the auto focus function. A current object distance value corresponding to the current lens moving step number is acquired according to the distance look-up table.Type: GrantFiled: November 12, 2009Date of Patent: May 1, 2012Assignee: Primax Electronics Ltd.Inventors: Szu-Hao Lyu, Chien-Nan Yu
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Patent number: 8154647Abstract: An imaging apparatus and method enables an automated extended depth of field capability that automates and simplifies the process of creating extended depth of field images. An embodiment automates the acquisition of an image “stack” or sequence and stores metadata at the time of image acquisition that facilitates production of a composite image having an extended depth of field from at least a portion of the images in the acquired sequence. An embodiment allows a user to specify, either at the time of image capture or at the time the composite image is created, a range of distances that the user wishes to have in focus within the composite image. An embodiment provides an on-board capability to produce a composite, extended depth of field image from the image stack. One embodiment allows the user to import the image stack into an image-processing software application that produces the composite image.Type: GrantFiled: March 4, 2009Date of Patent: April 10, 2012Assignee: Applied Minds, LLCInventor: Bran Ferren
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Patent number: 8139142Abstract: RGB-Z imaging systems acquire RGB data typically with a high X-Y resolution RGB pixel array, and acquire Z-depth data with an array of physically larger Z pixels having additive signal properties. In each acquired frame, RGB pixels are mapped to a corresponding Z pixel. Z image resolution is enhanced by identifying Z discontinuities and identifying corresponding RGB pixels where the Z discontinuities occur. Thus segmented data enables RGB background substitution, which preferably blends foreground pixel color and substitute background color. The segmented data also enables up-sampling in which a higher XY resolution Z image with accurate Z values is obtained. Up-sampling uses an equation set enabling assignment of accurate Z values to RGB pixels. Fixed acquisition frame rates are enabled by carefully culling bad Z data. Segmenting and up-sampling enhanced video effects and enable low cost, low Z resolution arrays to function comparably to higher quality, higher resolution Z arrays.Type: GrantFiled: December 20, 2007Date of Patent: March 20, 2012Assignee: Microsoft CorporationInventors: Cyrus Bamji, Abbas Rafii, Ryan E. Crabb
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Patent number: 8139141Abstract: An RGB-Z sensor is implementable on a single IC chip. A beam splitter such as a hot mirror receives and separates incoming first and second spectral band optical energy from a target object into preferably RGB image components and preferably NIR Z components. The RGB image and Z components are detected by respective RGB and NIR pixel detector array regions, which output respective image data and Z data. The pixel size and array resolutions of these regions need not be equal, and both array regions may be formed on a common IC chip. A display using the image data can be augmented with Z data to help recognize a target object. The resultant structure combines optical efficiency of beam splitting with the simplicity of a single IC chip implementation. A method of using the single chip red, green, blue, distance (RGB-Z) sensor is also disclosed.Type: GrantFiled: January 26, 2005Date of Patent: March 20, 2012Assignee: Microsoft CorporationInventors: Cyrus Bamji, Peiqian Zhao
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Patent number: 8134637Abstract: An imaging system substantially simultaneously acquires z-depth and brightness data from first sensors, and acquires higher resolution RGB data from second sensors, and fuses data from the first and second sensors to model an RGBZ image whose resolution can be as high as resolution of the second sensors. Time correlation of captured data from first and second sensors is associated with captured image data, which permits arbitrary mapping between the two data sources, ranging from 1:many to many:1. Preferably pixels from each set of sensors that image the same target point are mapped. Many z-depth sensor settings may be used to create a static environmental model. Non-correlative and correlative filtering is carried out, and up-sampling to increase z-resolution occurs, from which a three-dimensional model is constructed using registration and calibration data.Type: GrantFiled: June 1, 2006Date of Patent: March 13, 2012Assignee: Microsoft CorporationInventors: Christopher J. Rossbach, Abbas Rafii, Peiqian Zhao
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Patent number: 8130309Abstract: In a light spot position detection device, in one frame of operation, under control of a control unit, pixel data obtained in a pixel section in exposure of a solid-state image sensor in synchronization with light emission of a light emitting element are added to corresponding storage portions in a memory unit, and pixel data obtained in exposure of the image sensor asynchronous to the light emission of the light emitting element are subtracted from the corresponding storage portions, to store pixel data of only signal light in the storage portions. A given number of frames of operation are repetitively performed to accumulate pixel data of only the signal light in the storage portions. The position of a light spot on the pixel section is calculated based on the pixel data of only the signal light and outputted whether the storage portions are saturated or not with the pixel data.Type: GrantFiled: December 14, 2009Date of Patent: March 6, 2012Assignee: Sharp Kabushiki KaishaInventor: Hideo Wada
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Patent number: 8130284Abstract: An imaging apparatus has: a white balance control circuit for detecting an achromatic portion of an image of an object and controlling gains of the chrominance; an object distance detecting circuit for detecting a distance to the object; and a zoom value detecting circuit for detecting a zoom value of the optical system. The imaging apparatus further has: an object brightness detecting circuit for detecting brightness of the object; and a white balance control amount adjustment value setting circuit for forming a white balance control amount adjustment value to adjust a control amount in the white balance control circuit on the basis of object brightness information, object distance detection information, and zoom value information, wherein the white balance control amount is adjusted on the basis of the white balance control amount adjustment value.Type: GrantFiled: May 15, 2009Date of Patent: March 6, 2012Assignee: Hitachi, Ltd.Inventors: Haruhiko Miyao, Takahiro Nakano
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Publication number: 20120044373Abstract: An imaging system for capturing images of the same object using a plurality of image capturing apparatuses that can communicate with each other is provided. At least one image capturing apparatus of the image capturing apparatuses transmits information of a distance to an in-focus position, or a captured image including the in-focus position, to another image capturing apparatus among the image capturing apparatuses, and each of the image capturing apparatuses determines each depth of field using the information of the distance to the in-focus position, or the captured image including the in-focus position.Type: ApplicationFiled: August 10, 2011Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Tomoyuki Shiozaki
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Patent number: 8106944Abstract: Described are a method and an apparatus for color-corrected underwater imaging. A range to an underwater object to be imaged is determined and control values are selected according to the range. Control values are predetermined for a number of ranges according to an optimization of a color quality factor for each range based on the spectra of the optical sources used for illumination and the wavelength-dependent optical transmission of the water for the range. The optical power of each optical source is controlled according to a respective one of the selected control values. Advantageously, an acquired image requires no color correction as the adaptive illumination compensates for the wavelength-dependent losses in the light propagation path from the optical sources to the object and from the object to the imaging device.Type: GrantFiled: January 18, 2007Date of Patent: January 31, 2012Assignee: Massachusetts Institute of TechnologyInventors: Iuliu Vasilescu, Alexander Bahr, Carrick Detweiler, Daniela Rus
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Patent number: 8106954Abstract: An imaging apparatus estimates a distance based on a reflectance value of a subject estimated with improved precision. An illumination unit illuminates a subject with illumination light. An imaging unit captures a plurality of images each under a different condition of the illumination unit. An illumination light element obtaining unit obtains an image formed with an element of the illumination light from the plurality of images. A reflectance estimation unit eliminates illumination variations from one of the plurality of images or from the image formed with the illumination light element, and estimates a reflectance of the subject corresponding to each pixel. A distance information estimation unit estimates a distance to the subject corresponding to each pixel based on the image formed with the illumination light element and the reflectance of the subject.Type: GrantFiled: July 22, 2008Date of Patent: January 31, 2012Assignee: Panasonic CorporationInventors: Daisuke Sato, Haruo Yamashita, Takeshi Ito
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Publication number: 20120019708Abstract: An image capturing apparatus has a function of automatically focusing on an object to be photographed. The apparatus includes a first image-obtaining unit that includes a picture-taking lens which includes a focusing lens, and a first imaging sensor to obtain a first image of the object; a second image-obtaining unit that includes a range-finding lens and a second imaging sensor to obtain a second image of the object; a range finder that calculates a distance to the object by using the first image data and the second image data; and a focus control unit that moves the focusing lens according to the distance calculated by the range finder to attain focus on the object. The range finder includes an image-forming-position determining unit which determines a first image forming position and a second image forming position, based on which a distance calculating unit calculates a distance to the object.Type: ApplicationFiled: July 25, 2011Publication date: January 26, 2012Inventors: Taijiro MORIHISA, Tatsutoshi KITAJIMA
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Publication number: 20120019689Abstract: An electronic apparatus is provided having a front side and a rear side oriented in opposite directions along a first axis, and a right-side and a left-side oriented in opposite directions along a second axis that is perpendicular to the first axis. A null control signal is generated based on an imaging signal. A first microphone located near the right-side of an electronic apparatus generates a first signal and a second microphone located near the left-side of the electronic apparatus generates a second signal. The first and second signals are processed, based on the null control signal, to generate a right beamformed audio signal having a first directional pattern having at least one first null, and a left beamformed audio signal having a second directional pattern having at least one second null. A first angular location (?) of the at least one first null and a second angular location (?) of the at least one second null are steered based on the null control signal.Type: ApplicationFiled: July 26, 2010Publication date: January 26, 2012Applicant: MOTOROLA, INC.Inventors: Robert Zurek, Kevin Bastyr, Joel Clark, Plamen Ivanov
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Publication number: 20110310290Abstract: A range-finding device includes a plurality of image pickup units disposed at a predetermined interval with each other, a lens unit to form subject images of a subject on the plurality of image pickup units, the image pickup units on which the subject image is formed outputting signals of the subject image, and a distance calculation unit to calculate a distance to the subject based on the signals output from the image pickup units. The plurality of image pickup units are formed on a single substrate. The subject image is formed through the lens unit on at least two image pickup units of the plurality of image pickup units. The distance calculation unit calculates a distance to the subject based on the signals output from the at least two image pickup units on each of which the subject image is formed.Type: ApplicationFiled: June 20, 2011Publication date: December 22, 2011Inventor: Shigeru OOUCHIDA
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Patent number: 8072529Abstract: A solid-state imaging device includes a semiconductor substrate having a principal surface, and three or more pixel regions formed in at least one direction of two different directions along the principal surface of the semiconductor substrate. Each pixel region includes a plurality of photoelectric conversion regions having different sensitivities. The photoelectric conversion region having the highest sensitivity in peripheral pixel regions of the pixel regions has a higher sensitivity than the photoelectric conversion region having the highest sensitivity in a central pixel region of the pixel regions.Type: GrantFiled: December 28, 2004Date of Patent: December 6, 2011Assignee: Sony CorporationInventor: Ichiro Murakami
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Patent number: 8072650Abstract: Systems and methods for automatically focusing an image capture device on a page of a document object. A predetermined light pattern is projected onto the page being imaged. The light pattern varies as a function of the separation of the page being imaged from the end page. The light pattern projected onto the page being imaged is sensed. Based on the sensed light pattern, the image capture device is focused on the page being imaged.Type: GrantFiled: January 11, 2008Date of Patent: December 6, 2011Assignee: Google Inc.Inventors: Alexander T. Starns, Wesley Grass
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Publication number: 20110292276Abstract: An imaging apparatus is provided which includes an imaging section which converts incident light which is incident from a subject via a lens and generates an imaging image; a selection section which, in regard to each of a plurality of ranging areas arranged in the generated imaging image, obtains a subject distance which is a distance from the lens to a subject included in the ranging area and an MTF for each of the ranging areas in relation to the lens, and selects a ranging area which includes a subject to be a focusing target as a focusing target area based on the obtained subject distance and MTF; and a focus control section which performs focus control so as to focus on a subject included in the selected focusing target area.Type: ApplicationFiled: March 31, 2011Publication date: December 1, 2011Applicant: Sony CorporationInventor: Yoshito TERASHIMA
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Patent number: 8068164Abstract: A data processing device includes: a face-detecting unit to detect a face region from an input image input from an imaging unit which images a subject including a face; a setting unit to calculate subject distance based on the face size of the face detected by the face-detecting unit, and set limits as a focus lens operation range before and after a focus lens position with the calculated subject distance as focal distance; a detecting unit to move a focus lens within the limits set by the setting unit, and detect a focal point where a detection value corresponding to the contrast intensity obtained from a face frame including the face detected by the face-detecting unit is not smaller than a threshold; and a control unit to determine, in a case wherein a focal point has been detected within predetermined set time, the focal point thereof as a focus position.Type: GrantFiled: August 13, 2008Date of Patent: November 29, 2011Assignee: Sony CorporationInventors: Fumihiro Kumagai, Takashi Kawai, Soroj Triteyaprasert
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Patent number: 8063944Abstract: An image sensor includes a plurality of pixels arranged in a matrix and has an electronic focal plane shutter function for providing a predetermined reset signal to the pixels on a pixel line to pixel line basis to perform an exposure start operation. A mechanical focal plane shutter is disposed immediately before the image sensor. A control unit causes the image sensor to perform the exposure start operation using the electronic focal plane shutter function a predetermined period of time after a curtain group of the mechanical focal plane shutter is open and causes the mechanical focal plane shutter to perform an exposure end operation when a shutter speed is set to low. The control unit causes the mechanical focal plane shutter to perform the exposure start operation and the exposure end operation when the shutter speed is set to high.Type: GrantFiled: March 12, 2007Date of Patent: November 22, 2011Assignee: Sony CorporationInventor: Toshihito Kido
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Patent number: 8049812Abstract: A method and apparatus for automatically focusing a camera that may rely upon ambient light for auto focusing and flash illumination for image capture. A correction factor may be determined that is based at least in part on a range between the camera and a desired subject. The camera focus may be adjusted in accordance with the correction factor prior to capturing a capture image using flash illumination.Type: GrantFiled: March 2, 2007Date of Patent: November 1, 2011Assignee: Honeywell International Inc.Inventors: Rand P. Whillock, Gary E. Determan, Jan Jelinek, Vincent C. Jacobson, Terry Ahrens
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Patent number: 8049810Abstract: If an aperture of the objective-imaging is the same as an aperture when a state has turned into a focused state with autofocus before the objective-imaging or if an F value of the objective-imaging is equal to or greater than an F value when a state has turned into a focused state with autofocus before the objective-imaging, the focused state is maintained and the focusing of the objective-imaging is skipped. Even in other cases, a in-focus position is detected near the in-focus position before the objective-imaging. Alternatively, if the user selects a speed priority, the in-focus position is detected in a narrow range near the in-focus position before the objective-imaging. This enables to achieve both enough speed and focus accuracy of the main-photographing.Type: GrantFiled: November 3, 2008Date of Patent: November 1, 2011Assignee: FUJIFILM CorporationInventor: Masahiko Sugimoto
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Patent number: 8049804Abstract: A contact portion 9 of a lens holding frame 1 and a contact portion 8 of a nut 10 are so formed that when the lens holding frame 1 and the nut 10 are brought into contact with each other by a coil spring 12, an urging force acts on the lens holding frame 1 in an optical axis direction and an orthogonal direction that orthogonally intersects the optical axis direction.Type: GrantFiled: May 8, 2007Date of Patent: November 1, 2011Assignee: Sharp Kabushiki KaishaInventor: Hideaki Fujita
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Patent number: 8040428Abstract: A camera or other optical system is focused by generating a plurality of digital images each obtained with a different focus setting of the optical system. These images are analysed to generate for each image a score (S) by comparing first groups of pixels chosen from the image with second groups chosen from the image such that the pixels of each second group have same respective positional relationships with respect to one another as the pixels of the first group with which it is compared have to one another, the score (S) being a function of the number of matches obtained with said comparisons. The focus setting that gives the score corresponding to the largest number of matches is chosen.Type: GrantFiled: December 8, 2006Date of Patent: October 18, 2011Assignee: British Telecommunications public limited companyInventors: Robert T Shilston, Frederick W M Stentiford
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Patent number: 8035721Abstract: An imaging apparatus has an image sensor that captures the optical image of an object formed by an imaging optical system and converts the optical image into the electrical still image signal, a signal processor for dividing a representation of the image signal into a plurality of areas, and for determining a color characteristic for each area of the plurality of areas, the color characteristic consisting of a hue and/or chroma saturation, a selector for selecting at least one area of the plurality of area for which its respective color characteristic substantially corresponds to a preset color characteristic, and a focus controller for determining focus parameters of the imaging apparatus for the selected area and generating a focus control signal for adjusting the image optical system based on the focus parameters.Type: GrantFiled: August 2, 2005Date of Patent: October 11, 2011Assignee: Panasonic CorporationInventors: Kenichi Honjo, Mitsuyoshi Okamoto, Minori Sato, Kenji Maeda, Seiichi Suzuki
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Patent number: 8035722Abstract: A system for calculating the dimensions of an object during an image capture of the object in an imaging device includes an imaging module, a dimension calculating module, and an indication module. The imaging module is configured for capturing an image of an object. The dimension calculating module is configured for calculating the dimensions of the object. The indication module is configured for indicating the dimensions of the object in the captured image.Type: GrantFiled: February 27, 2009Date of Patent: October 11, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Pei-Chen Nung
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Patent number: 8035739Abstract: In one aspect a transmission system with a transmitter which can be connected to a video source and a receiver linked to the transmitter via at least four circuit pairs, to which receiver a playback device can be connected is provided. Data is usually exchanged digitally between a graphics card in a personal computer and an LCD display module. The personal computer transmits a digital R, G, B video signal to the LCD display module via a special, so-called DVI (Digital Video Interface) cable. This DVI cable is also provided to transmit so-called DDC (Display Data Channel) data, which particularly comprises specification information of the LCD display module. A transmission system is proposed, which simplifies a connection of an LCD display module to a personal computer and with which the DVI cable can be dispensed with.Type: GrantFiled: June 15, 2006Date of Patent: October 11, 2011Assignee: Eizo GmbHInventor: Günter Gerner
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Publication number: 20110242346Abstract: An object is detected from live view images photographed by two imaging sections, correspondence relationship of the detected object is detected between the two live view images and between previous and current frames, and priority degrees of detected objects are adjusted. A distance from a camera to the object is calculated, and an object movement distance between the frames is calculated from an amount of change of the camera-to-object distance, which change occurs between the frames of the live view images. A focusing position for each of objects of the highest and second highest priority degrees and for each of the next and subsequent frames is predicted from the object movement distance. Photographing is performed by focusing on each of the objects of the highest and second highest priority degrees at each of the two imaging sections in accordance with each of the predicted focusing positions.Type: ApplicationFiled: February 7, 2011Publication date: October 6, 2011Inventor: Shunta EGO
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Publication number: 20110242402Abstract: Digital cameras with triangulation auto focus systems include a spot beam emitter than can be used to project a spot onto a subject that is captured in an image and used to electronically automatically determine a subject to camera distance.Type: ApplicationFiled: June 13, 2011Publication date: October 6, 2011Inventor: Mats Göran Henry Wernersson
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Patent number: 7995131Abstract: An imaging device includes a capturing module with at least one lens for capturing an image from a scene, a driving module for driving the at least one lens to different focusing positions using different driving steps, a flat-scene judging module, and a step-judging module. The flat-scene judging module divides the image into a central area and a plurality of peripheral areas, and determines whether the captured scene is a flat scene according to the divided image. The step-judging module determines whether the driving steps corresponding to a maximum focusing value of the central area of the image are same as driving steps corresponding to respective maximum focusing values of the peripheral areas of image, and changes the driving steps corresponding to the maximum focusing value of the central area to the driving steps corresponding to the greatest one of the maximum focusing values of the peripheral areas.Type: GrantFiled: August 8, 2008Date of Patent: August 9, 2011Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Chun-Nan Yeh
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Publication number: 20110181770Abstract: A device and methods are provided for calculating depth estimation for a digital imaging device are disclosed and claimed. In one embodiment, a method includes detecting a first image associated with a first focus parameter, detecting a second image associated with a second focus parameter, calculating a statistical representation of a region of interest in the first and second images, and determining a ratio for the region of interest based on the statistical representation. The method may further include determining one or more focus characteristics using a memory table based on the determined ratio for the region of interest, and calculating a focus depth for capture of image data based on the determined one or more focus characteristics associated with the memory table.Type: ApplicationFiled: August 16, 2010Publication date: July 28, 2011Applicant: ZORAN CORPORATIONInventors: Guy Rapaport, Meir Tzur, Artemy Baxansky