Exposure Control Patents (Class 348/362)
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Patent number: 8659667Abstract: A processor within a digital camera which generates and utilizes a recipe data file and communicates with a network-based storage location for uploading and downloading. The recipe data file contains both a device setting template component, used to set camera-specific parameters, and an instructional component, which the processor uses to generate visual and audible instructions for positioning and aiming the camera. Visual instructions are provided directly on the viewfinder display. The processor uses on-board GPS and compass or gyroscope to obtain real-time position and pointing direction of the camera.Type: GrantFiled: August 29, 2011Date of Patent: February 25, 2014Assignee: Panasonic CorporationInventors: Zia Syed, Woosuk Chang
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Patent number: 8654201Abstract: A method for deblurring an image. A first image is captured. A second image is captured, wherein the second image is more blurred and more exposed than the first image. The second image is deblurred based on the first image.Type: GrantFiled: February 23, 2005Date of Patent: February 18, 2014Assignee: Hewlett-Packard Development Company, L.P.Inventors: Suk Hwan Lim, D. Amnon Silverstein
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Patent number: 8654245Abstract: An imaging device includes an imaging element, a shutter mechanism, an actuator, a rotatable transmission member, a position detector, and a drive controller. The shutter mechanism is switchable between an open and a closed state to control the light incident on the imaging element. The transmission member is configured to transmit a driving force produced by the actuator to the shutter mechanism. The position detector is configured to detect the rotational position of the transmission member. The drive controller is configured to direct the actuator to begin storing the driving force while image data is being read from the imaging element, to control the timing at which the actuator begins driving the shutter mechanism based on the position of the transmission member detected by the position detector, and to switch the shutter mechanism from the closed state to the open state after the actuator has stopped storing the driving force.Type: GrantFiled: January 31, 2012Date of Patent: February 18, 2014Assignee: Panasonic CorporationInventors: Junji Takahata, Takahiro Ikeda
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Publication number: 20140043527Abstract: An optical imaging system includes a thin film imager that is able to create images of objects in various modes of imaging such as bright field, dark field, frustrated total internal reflection, fly eye, and the like. The imaging system may be an integrated optical design that performs different modes of optical imaging in the same imaging device by positioned pin hole structures in geometries that capture images according to the desired mode of imaging.Type: ApplicationFiled: August 13, 2012Publication date: February 13, 2014Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventor: Jeng Ping Lu
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Patent number: 8648947Abstract: An image-pickup apparatus including a detector comprising a detecting unit and a reading circuit, the detecting unit including pixels, each of which including a conversion element, the reading circuit which includes a connecting unit that is electrically connected to a signal wire transferring an electric signal and that electrically connects the signal wire to a node, and which performs a reading operation to output the electric signal from the pixel. A control unit controls an operation of the reading circuit, and a sensing unit senses the end of radiation irradiation based on an output of the reading circuit, which is acquired during the period of an accumulation operation of the detector. The control unit starts establishing the electrical connection between the signal wire and the node through the connecting unit based on the sensed irradiation end, and retains the electrical connection until the start of the reading operation.Type: GrantFiled: November 15, 2011Date of Patent: February 11, 2014Assignee: Canon Kabushiki KaishaInventors: Sho Sato, Tadao Endo, Toshio Kameshima, Tomoyuki Yagi, Katsuro Takenaka, Atsushi Iwashita
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Publication number: 20140036141Abstract: An image pickup apparatus capable of not only detecting whiteout or blackout but also effectively achieving exposure control. In the image pickup apparatus, an entire-screen brightness frequency distribution is detected based on a picked-up image signal. The image pickup apparatus calculates a first exposure control value from the entire-screen brightness frequency distribution. The image signal is divided into a plurality of small areas, and the brightness of each of the small areas is detected. The image pickup apparatus calculates a second exposure control value from the brightness. The image pickup apparatus calculates an exposure correction value based on the first exposure control value and the second exposure control value. An exposure value is calculated using the exposure correction value and an exposure value of the image signal. The image pickup apparatus performs exposure control of the image pickup section based on the calculated exposure value.Type: ApplicationFiled: October 11, 2013Publication date: February 6, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Hironori Kaida
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Publication number: 20140037296Abstract: An information communication method includes: setting an exposure time of an image sensor to less than or equal to 1/2000 second so that, in an image obtained by capturing a subject by the image sensor, a stripe bright line parallel to a plurality of exposure lines included in the image sensor appears according to a change in luminance of the subject; obtaining the image including the stripe bright line parallel to the plurality of exposure lines by, using the set exposure time, starting exposure sequentially for the plurality of exposure lines each at a different time; and obtaining information by demodulating data according to, in a pattern of the bright line included in the obtained image, a brightness change in a direction perpendicular to the plurality of exposure lines.Type: ApplicationFiled: June 6, 2013Publication date: February 6, 2014Inventors: Kazunori YAMADA, Shigehiro IIDA, Koji NAKANISHI, Hideki AOYAMA, Yosuke MATSUSHITA, Tsutomu MUKAI, Mitsuaki OSHIMA, Ikuo FUCHIGAMI, Hidehiko SHIN
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Patent number: 8643769Abstract: Embodiments of the invention provide a 16 bit floating point signal processor will typically give an order of magnitude more performance than a 32 bit floating point signal processor and about twice as much performance as a 16 bit fixed point processor. Capturing wide dynamic range images in 16 bit floating point format entails representing an iris of a imaging device as an exponent of a floating point number and representing the precision of said imaging device as a mantissa of said floating point number.Type: GrantFiled: October 11, 2011Date of Patent: February 4, 2014Assignee: Texas Instruments IncorporatedInventor: Gene Alan Frantz
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Patent number: 8643734Abstract: An image stabilized digital image capture device, comprising an image sensor for capturing a digital image; an optical system for imaging a scene onto the image sensor; an image stabilization system; an exposure control system; a memory system; and a processor. The processor is used to perform the steps of determining exposure settings using the exposure control system; selectively engaging the image stabilization system responsive to whether the determined exposure settings satisfy a predefined condition; capturing a digital image of a scene using the image sensor and the selectively engaged image stabilization system; and storing the captured digital image in the memory system.Type: GrantFiled: November 10, 2010Date of Patent: February 4, 2014Assignee: Apple Inc.Inventors: Noah J. Stupak, Keith S. Karn, Timothy J. White
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Patent number: 8643768Abstract: When an exposure value calculated according to a result of photometric measurement for predetermined main imaging units among a plurality of imaging units is used for setting exposure of the main imaging units and sub-imaging units other than the main imaging units, judgment is carried out as to whether an image or images obtained in photography with the sub-imaging units by setting the exposure thereof according to the exposure value is/are saturated. In the case where a result of the judgment is affirmative, any one of the sub-imaging units having obtained the saturated image or images is designated as new main imaging units. The exposure value is calculated newly, and the exposure is set for the new main imaging units and for new sub-imaging units other than the new main imaging units.Type: GrantFiled: May 20, 2011Date of Patent: February 4, 2014Assignee: FUJIFILM CorporationInventor: Tomonori Masuda
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Patent number: 8643765Abstract: An output level difference in the case of using a joint line as a boundary, a bright line, a black bar, or the like is suppressed. A solid-state image pick-up apparatus in which, on a substrate having a plurality of photoelectric converting areas (photodiodes), a solid-state image pick-up element provided with at least one pattern layer formed by divisional exposure and a lens for introducing light into the plurality of photoelectric converting areas of the solid-state image pick-up element are formed. By setting a center of an optical axis of the lens to an approximate joint position between the pattern layers where the pattern layers have been joined by the divisional exposure, the output level difference of a pixel output of the solid-state image pick-up element on the right and left sides of the joint position is suppressed.Type: GrantFiled: March 21, 2011Date of Patent: February 4, 2014Assignee: Canon Kabushiki KaishaInventors: Hideaki Takada, Akira Okita, Hiroki Hiyama
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Publication number: 20140028899Abstract: A system for imaging an object is provided. The system includes a light source configured to emit light having a predetermined wavelength towards the object. The system further includes a metalens including a metallic film having a plurality of slits defined therethrough, the plurality of slits having a width a and a periodicity d that are both less than the predetermined wavelength, wherein the object is positioned between the light source and the metalens. The system further includes a detector configured to acquire measurements indicative of light transmitted through the metalens, and a computing device communicatively coupled to the detector and configured to reconstruct an image of the object based on the acquired measurements.Type: ApplicationFiled: October 7, 2013Publication date: January 30, 2014Inventors: Jung-Tsung Shen, Yuecheng Shen, Lihong Wang
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Patent number: 8634019Abstract: An image processing apparatus includes a distribution detection unit configured to detect whether a luminance distribution on the screen changes to a hill-shaped form, based on a result of adding photometric values of each of divided photometry areas by rows and by columns, a difference calculation unit configured to calculate a luminance value difference between one portion of the screen and the peripheral portion thereof, a ratio calculating unit configured to calculate a ratio of pixels having a luminance value higher than or equal to a threshold value in the one portion, and a spotlight determination unit configured to determine whether a scene of the captured image is a spotlight scene according to a detection result of the distribution detection unit, calculation result of the difference calculation unit, and a calculation result of the ratio calculation unit.Type: GrantFiled: November 1, 2012Date of Patent: January 21, 2014Assignee: Canon Kabushiki KaishaInventor: Takeshi Ikeda
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Patent number: 8634018Abstract: An exemplary aspect of the invention is an image pickup apparatus including a sensor unit including a plurality of pixels; an exposure control unit that controls exposure by a feedback control based on image data acquired by the sensor unit; and a display unit that displays an image having undergone exposure control. During a time period from a point immediately after activation of the image pickup apparatus until a point when an image is displayed on the display unit, the sensor unit executes temporary loading of a part of the image data, and the exposure control unit sets an optimum exposure value based on the image data temporarily loaded.Type: GrantFiled: February 28, 2011Date of Patent: January 21, 2014Assignee: Renesas Electronics CorporationInventor: Toshiharu Ooi
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Patent number: 8633996Abstract: In previously known imaging devices as in still and motion cameras, for example, image sensor signal response typically is linear as a function of intensity of incident light. Desirably, however, akin to the response of the human eye, response is sought to be nonlinear and, more particularly, essentially logarithmic. Preferred nonlinearity is realized in image sensor devices of the invention upon severely limiting the number of pixel states, combined with clustering of pixels into what may be termed as super-pixels.Type: GrantFiled: April 9, 2009Date of Patent: January 21, 2014Assignee: Rambus Inc.Inventors: Edoardo Charbon, Luciano Sbaiz, Martin Vetterli, Sabine Susstrunk
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Patent number: 8634012Abstract: Provided is a solid-state image pickup device that includes: a pixel portion having a plurality of pixels that are arranged in a two-dimensional array and generate pixel signals; a readout row counter that generates row addresses for reading the pixel portion; a first reset row counter that generates a row address for resetting a first field of the pixel portion; a second reset row counter that generates a row address for resetting a second field of the pixel portion; a selector that selects one of the row addresses generated by the readout row counter, the first reset row counter, and the second reset row counter; and pixel driving units that respectively select two rows: an odd-numbered row and a neighboring even-numbered row of the pixel portion corresponding to the selected row address.Type: GrantFiled: March 30, 2011Date of Patent: January 21, 2014Assignee: Canon Kabushiki KaishaInventors: Tatsuhiko Yamazaki, Shintaro Takenaka
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Publication number: 20140016023Abstract: A shutter driving system and a camera device having the same, and a driving method thereof are provided. The shutter driving system includes a base plate including an opening part, a front-curtain and a rear-curtain, a front-curtain link and a rear-curtain link supporting respective folding and unfolding operations of the front-curtain and the rear-curtain, a front-curtain drive lever and a rear-curtain drive lever controlling respective drives of the front-curtain link and the rear-curtain link for opening and closing the opening part, a front-curtain electromagnet and a rear-curtain electromagnet selectively and respectively stopping the front-curtain and rear-curtain drive levers, a cam gear mechanically closing the opening part of the front curtain and mechanically opening the opening part of the rear-curtain, a motor rotating the cam gear, and a reduction gear train including at least one gear disposed between the cam gear and the motor.Type: ApplicationFiled: May 10, 2013Publication date: January 16, 2014Applicant: Samsung Electronics Co. Ltd.Inventors: Sangki MIN, Yongwook JANG
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Publication number: 20140016024Abstract: An image pickup apparatus is provided which includes an image pickup device; a display unit configured to perform a control operation to display a signal output from the image pickup device on a monitor; a first photometry section configured to measure luminance of an image of an object based on the signal output from the image pickup device; a second photometry section configured to measure luminance of the image of the object using a photometric sensor mounted at a position different from the image pickup device; and a controller configured to control exposure based on photometric information obtained from the second photometry section in a case where, before photometric information is obtained from the first photometry section, a request is made by a user to capture an image for recording an output of the image pickup device.Type: ApplicationFiled: September 20, 2013Publication date: January 16, 2014Applicant: CANON KABUSHIKI KAISHAInventor: Tomoya Yamashita
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Publication number: 20140016022Abstract: According to one embodiment, a camera module has an exposure control unit. When an exposure error has reached within a coring range by first exposure control, the exposure control unit switches exposure control from the first exposure control to second exposure control. The exposure error shows a deviation of an exposure evaluation value to an exposure target value. In the second exposure control, an exposure change amount is reduced than at the time of the first exposure control. When the exposure error has reached a zero level by the second exposure control, the exposure control unit stops the exposure control.Type: ApplicationFiled: February 6, 2013Publication date: January 16, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: You YOSHIOKA, Naoto MIHARA, Junichi HOSOKAWA
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Patent number: 8629931Abstract: An imaging apparatus, when an image captured by an imaging unit thereof is not displayed on a display unit, can facilitate framing of an object to be imaged. An aspect ratio setting unit sets an aspect ratio imaged by an image sensor. A system control circuit controls, in a first mode, the display unit to display image data captured by an image sensor in the aspect ratio, and in a second mode, not to display the image data. The system control circuit also displays, in the second mode, information from which at least one of a focus detectable position and a metering area within a shooting area in the aspect ratio is identifiable.Type: GrantFiled: August 4, 2010Date of Patent: January 14, 2014Assignee: Canon Kabushiki KaishaInventors: Yuichiro Ishitsuka, Taeko Ito
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Publication number: 20140009669Abstract: There is provide a control device including an imaging element in which, as a plurality of light sensing elements that perform photoelectric conversion to convert incident light entering via a light collecting unit into electric signals, first light sensing elements that sense the incident light in a first light sensing amount and second light sensing elements that sense the incident light in a second light sensing amount that is smaller than the first light sensing amount are provided, an exposure information generation unit that generates exposure information for controlling exposure during imaging of a subject based on electric signals obtained from photoelectric conversion performed by the second light sensing elements, and an exposure control unit that controls exposure based on the exposure information.Type: ApplicationFiled: June 25, 2013Publication date: January 9, 2014Inventors: Hisashi Akiyama, Yoshinori Takagi
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Publication number: 20140009670Abstract: A system and camera wherein the camera comprises in the light path a diffuser (4). The system or camera comprises a means (6) to modulate the diffusing properties of the diffuser (4) on an image projected by the lens on the sensor during exposure of the image. To the captured blurred image (10) an inverse point spread function is applied to deconvolute (24) the blurred image to a sharper image. Motion invariant image can so be achieved.Type: ApplicationFiled: March 13, 2012Publication date: January 9, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Dmitry Nikolayevich Znamenskiy, Ruben Rajagopalan, Rifat Ata Mustafa Hikmet
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Patent number: 8625013Abstract: Certain cameras and systems described herein produce enhanced dynamic range still or video images. The images can also have controlled or reduced motion artifacts. Moreover, the cameras and systems in some cases allow the dynamic range and/or motion artifacts to be tuned to achieve a desired cinematic effect.Type: GrantFiled: August 22, 2011Date of Patent: January 7, 2014Assignee: Red.com, Inc.Inventors: James H. Jannard, Graeme Nattress, Bimal Mathur, Uday Mathur, Deanan DaSilva, Peter Jarred Land
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Publication number: 20140002718Abstract: An approach is provided to adjust a camera shutter lag. In the approach, data is collected that corresponds to an ambient light found in a physical environment with the ambient light being controlled using a pulse-width modulation (PWM). The pulse-width modulation corresponds to a PWM timing model. When an exposure request is received, the camera shutter lag is calculated using the PWM timing model. The calculated shutter lag is based on a future point in time at which the ambient light of the physical environment is predicted to be at a selected light output level, such as a power level selected by the user of a camera. When the calculated camera shutter lag has expired, a shutter of the camera is opened causing a camera lens to be exposed that results in a captured exposure.Type: ApplicationFiled: June 28, 2012Publication date: January 2, 2014Applicant: International Business Machines CorporationInventor: Anthony Cappa Spielberg
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Publication number: 20140002720Abstract: An image capture apparatus capable of performing appropriate exposure control including determination of whether or not to fire an illuminating device for each frame shot during continuous shooting is provided. If shooting for recording was performed without firing the illuminating device during continuous shooting, a photometric value to be used to determine a control value (shooting parameter) used in subsequent shooting for recording is obtained based on image data obtained in the shooting for recording. On the other hand, if shooting for recording was performed while firing the illuminating device, the photometric value to be used to determine the control value to be used in subsequent shooting for recording is obtained based on image data obtained in shooting without firing the illuminating device that was performed after the shooting for recording and before the subsequent shooting for recording.Type: ApplicationFiled: June 25, 2013Publication date: January 2, 2014Inventor: Soichiro Shigeeda
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Publication number: 20140002719Abstract: An approach is provided to adjust a camera shutter lag. In the approach, data is collected that corresponds to an ambient light found in a physical environment with the ambient light being controlled using a pulse-width modulation (PWM). The pulse-width modulation corresponds to a PWM timing model. When an exposure request is received, the camera shutter lag is calculated using the PWM timing model. The calculated shutter lag is based on a future point in time at which the ambient light of the physical environment is predicted to be at a selected light output level, such as a power level selected by the user of a camera. When the calculated camera shutter lag has expired, a shutter of the camera is opened causing a camera lens to be exposed that results in a captured exposure.Type: ApplicationFiled: January 15, 2013Publication date: January 2, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventor: INTERNATIONAL BUSINESS MACHINES CORPORATION
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Publication number: 20130335583Abstract: Disclosed herein is an imaging device including: a light emission control section configured to obtain a delay time from issuance to a flash of a light emission trigger indicating light emission start timing of the flash to reaching of a predetermined value by light emission luminance of the flash; an imaging control section configured to control exposure start timing on a basis of the delay time; and a correction amount calculating section configured to calculate, on the basis of the delay time, an amount of correction used when brightness of a taken image taken from the exposure start timing is corrected.Type: ApplicationFiled: June 10, 2013Publication date: December 19, 2013Inventor: Masashi Murakita
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Patent number: 8610819Abstract: An imaging device comprises an imaging section for outputting image data every set time, in association with commencement of a bulb exposure; an adding processing section for, every time new image data is output from the imaging section, generating an added image by adding images that were output after commencement of the bulb exposure; an image display section for displaying each generated added image; and a sound generating section for performing sound generation in response to update of the image display section when a display update interval of the image display section is at least a specified time.Type: GrantFiled: May 18, 2012Date of Patent: December 17, 2013Assignee: Olympus Imaging Corp.Inventor: Yoji Watanabe
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Patent number: 8610818Abstract: Systems and methods for improving video stutter in high resolution progressive video captured with fast exposure times. In a first approach, digital video is captured with fast shutter speeds that cause each frame of the video to be sharp. A motion blur is not captured for objects moving within the frame. The video codec generates motion information that may be utilized to add an artificial motion blur to each frame of the digital video during processing in a digital video pipeline. In a second approach, the lens assembly of the digital camera includes an electronically actuated filter that attenuates the light reaching an image sensor such that the shutter speeds may be decreased in order to capture motion blur. The electronically actuated filter may be a liquid crystal display (LCD) device that is set to a plurality of different transparency levels based on the voltage applied to the LCD device.Type: GrantFiled: January 18, 2012Date of Patent: December 17, 2013Assignee: Cisco Technology, Inc.Inventor: John Furlan
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Publication number: 20130329127Abstract: A first control unit, which controls the timing when a first image pickup unit starts exposure, obtains a second difference by subtracting a first difference from an exposure-output time of the first image pickup unit, and outputs a first control signal for delaying the timing when the first image pickup unit starts exposure, by the second difference. The exposure-output time is a time lag between when the image pickup unit starts exposure and when output of an image signal obtained by the exposure is started. The first difference is a difference between a timing at which the first image pickup unit started outputting a predetermined image signal and a timing at which a second image pickup unit started an exposure for obtaining an image signal that the second image pickup unit outputted immediately after the first image pickup unit started outputting the predetermined image signal.Type: ApplicationFiled: February 24, 2012Publication date: December 12, 2013Applicant: RENESAS ELECTRONICS CORPORATIONInventors: Takeshi Hataguchi, Kazuhiko Takami
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Patent number: 8605177Abstract: An image sensor, system and method that alternates sub-sets of pixels with long exposure times and pixels with short exposure times on the same sensor to provide a sensor having improved Wide Dynamic Range (WDR). The sub-sets of pixels are reset at different time intervals after being read, which causes the respective integration times to vary. By combining information contained in the both the short and long integration pixels, the dynamic range of the sensor is improved.Type: GrantFiled: September 16, 2009Date of Patent: December 10, 2013Assignee: AltaSens, Inc.Inventors: Giuseppe Rossi, Roberto Marchesini, Qianjiang Mao, Emanuele Mandelli, Gaurang Patel, Naveen Kolli, Jonathan Stern
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Patent number: 8605202Abstract: A camera and system comprising a camera in which, during exposure, the ratio of the distance between the lens and the sensor and the focal length is changed. The rate of change is set such that motion invariant imaging is achievable for practical speed ranges, i.e. speed of up to at least 5 km/hour at 2 meter distance of the lens, by deconvoluting the compound image. Preferably the achievable speed range is at least twice as high. A linear motion of the sensor is preferred.Type: GrantFiled: April 28, 2010Date of Patent: December 10, 2013Assignee: Koninklijke Philips N.V.Inventors: Remco Theodorus Johannes Muijs, Dmitry Nikolaevich Znamenskiy, Harold Agnes Wilhelmus Schmeitz, Ruud Vlutters, Franciscus Hendrikus Van Heesch
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Publication number: 20130321695Abstract: There is provided an imaging apparatus including an image sensor that converts an optical image captured through a lens into an electrical signal, and a shutter that has blade members to be opened and closed at a time of photographing. Correction of shading that is generated by an operation of the shutter is performed on a basis of an elliptical shape, and the elliptical shape is inclined in a direction according to an operation direction of the blade members.Type: ApplicationFiled: May 22, 2013Publication date: December 5, 2013Applicant: SONY CORPORATIONInventors: Takashi Kato, Toshiaki Konno, Atsushi Oohata, Yuichiro Totsuka, Hiroki Hagiwara
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Patent number: 8595918Abstract: An image taking system including: (a) a CMOS or CCD image sensor; (b) an interest-region setter configured to set regions of interest within an image taking area of the image sensor; (c) an acquiring-condition determiner configured to determine an image-data acquiring condition required for acquiring at least two image data generated in at least two of the regions of interest; and (d) an image-data acquirer configured to acquire the at least two image data. The acquiring-condition determiner includes an exposure-time determining portion configured to determine, as the image-data acquiring conditions, at least two different exposure times required for acquiring the at least two image data generated in the at least two regions of interest. The image-data acquirer includes an exposure-time-based-image-data acquiring portion configured to acquire the at least two image data, such that the acquired at least two image data are based on the at least two different exposure times.Type: GrantFiled: February 18, 2010Date of Patent: December 3, 2013Assignee: Fuji Machine Mfg. Co., Ltd.Inventors: Takahiro Jindo, Kimihiko Yasuda, Tetsunori Kawasumi, Yasuhiro Yamashita
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Patent number: 8599283Abstract: An image capture apparatus includes: an image capturing unit; a first image capture controller configured to control the image capturing unit to capture a set of a plurality of images while changing exposure time for each of the images; a second image capture controller configured to obtain a plurality of sets of the images; an addition combination section configured to perform image alignment on the images contained in each of the sets and to perform addition combination on the aligned images to generate a combined image; a combination controller configured to control the addition combination section to perform the image alignment and the addition combination for each of the sets to obtain a plurality of combined images; a selector configured to evaluate the combined images and to select one of the combined images most highly evaluated as a selected image; and a storage configured to store the selected image.Type: GrantFiled: November 10, 2010Date of Patent: December 3, 2013Assignee: Casio Computer Co., Ltd.Inventors: Kazuhisa Matsunaga, Masaru Onozawa, Kouichi Nakagomi, Tetsuji Makino
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Patent number: 8599305Abstract: A solid-state imaging device having a pixel array section in which pixels including photoelectric conversion elements are arranged in a matrix form, and sweeping out unnecessary charges by setting a predetermined number, two or more, of adjacent rows or a predetermined number, two or more, of adjacent columns, in the pixel array section, to a single group, and by applying a shutter pulse in units of groups before storing signal charges, and sequentially reading the signal charges in the units of groups. In the solid-state imaging device, a pre-shutter pulse is applied to pixels belonging to at least a single row or a single column within a succeeding group and adjacent to a preceding group, prior to the shutter pulse, before a reading timing for the preceding group, to sweep out unnecessary charges stored in the pixels.Type: GrantFiled: August 10, 2011Date of Patent: December 3, 2013Assignee: Sony CorporationInventors: Takahiro Abiru, Ryoji Suzuki, Eiji Makino, Takayuki Usui
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Patent number: 8600226Abstract: Focusing methods, apparatus, and computer-readable recording media having recorded thereon the focusing methods are disclosed. In an example focusing method, a focus evaluation value is divided into first information and second information. The first information represents a difference between focus evaluation values, which are obtained according to location of a focus lens, to be relatively large, and the second information represents the difference to be relatively small. Then, at least one from among the first information and the second information is provided to a user so that the user may easily and more accurately determine whether a subject is in focus.Type: GrantFiled: June 13, 2011Date of Patent: December 3, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Masataka Hamada, Kenji Ishibashi
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Patent number: 8593565Abstract: A camera apparatus includes a photogrammetric range sensor, small aperture lens and a processor configured to carry out a method for simulating a large aperture lens. The method includes capturing a photographic image data of a scene using the camera with the lens set to a small aperture size. Simultaneously or near-simultaneously with capturing the image, the camera captures photogrammetric range data pertaining to depth of objects in a field of view of the camera, using the range sensor. The processor then processes the photographic image data using the photogrammetric range data to obtain second photographic data simulating an image captured using a lens set to an aperture size larger than the small aperture size.Type: GrantFiled: March 26, 2012Date of Patent: November 26, 2013Inventor: Gary S. Shuster
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Publication number: 20130308044Abstract: There are provided an imaging apparatus and method which perform different exposure control in pixel group units. Brightness in the pixel group units obtained by dividing a plurality of pixels of an imaging area of the image sensor is evaluated, and pixel group unit exposure control values are calculated according to an evaluation result. The image sensor outputs a control signal matching the calculated pixel group unit exposure control value to each pixel group constituent pixel, and controls exposure in the pixel group units. For example, the exposure control signal including an identical pattern is sequentially output to a plurality of pixels in a pixel group in a time sequence, and exposure control which sets an identical exposure time for a plurality of pixels belonging to one pixel group is realized.Type: ApplicationFiled: January 26, 2012Publication date: November 21, 2013Applicant: Sony CorporationInventor: Tomoo Mitsunaga
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Patent number: 8587691Abstract: A photographing apparatus and method for dynamic range adjustment and stereography. The photographing apparatus includes a first imaging device for converting a light of a subject received through a first optical system into an electric signal; a second imaging device for converting a light of the subject received through a second optical system into an electric signal; a first image signal processor for generating an image signal for live view based on the electric signal output from the first imaging device before a photographing operation of a still image; an exposure controller for controlling an exposure so as to perform a step exposure in the second imaging device before the photographing of the still image; and an exposure calculator for calculating an exposure amount in the photographing operation of the still image based on the electric signal converted in the second imaging device obtained through the step exposure.Type: GrantFiled: November 25, 2009Date of Patent: November 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Yasuo Takane
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Patent number: 8587714Abstract: A method for capturing an image, suitable for an image capturing apparatus with a flash lamp, is provided. In the invention, a pre-flash image is captured when a pre-flash is fired by the flash lamp. An intensity of a main flash is estimated. Whether the pre-flash image is overexposed is determined for calculating an overexposure number. A brightness comparison data is looked up according to the overexposure number and a brightness target value, so as to reduce a photosensitivity. A raw image is captured according to the reduced photosensitivity when the main flash is fired by the flash lamp.Type: GrantFiled: August 9, 2011Date of Patent: November 19, 2013Assignee: Altek CorporationInventors: Chung-Pin Lu, Yi-Yu Chen
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Patent number: 8587681Abstract: A method for forming an image, implemented at least in part by a data processing apparatus, by obtaining a first image of a scene from a first subset of pixels in an image sensor array at a first f/# setting, adjusting the imaging optics that obtain light from the scene at a second f/# setting, obtaining a second image of the scene from a second subset of pixels in the image sensor array, and forming a composite image by combining image data from at least the first and second images.Type: GrantFiled: November 21, 2008Date of Patent: November 19, 2013Assignee: OmniVision Technologies, Inc.Inventor: Robert M. Guidash
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Patent number: 8582002Abstract: An imaging method includes a step of setting, when a digital zoom operation mode for enlarging an image imaged by a imaging part of an X-Y address type is selected, a zoom magnification and enlarging the image at the zoom magnification set. The imaging method includes the steps of: setting an imaging range in a vertical direction of the imaging part according to the zoom magnification set in the digital zoom step; outputting a driving signal for scanning the shutter signal and the readout signal to perform exposure in the imaging range set in the imaging range setting step and driving the imaging part; and discarding, when the zoom magnification is changed in the digital zoom step, images imaged by the imaging part before and after the change of the zoom magnification to prevent the images from being used.Type: GrantFiled: October 29, 2012Date of Patent: November 12, 2013Assignee: Sony CorporationInventors: Masato Yoneda, Toshio Yamada
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Patent number: 8581992Abstract: An image capturing apparatus includes: an image capturing unit capturing an image of an object; an image capture controller that causes the image capturing unit to capture first color component images having a first color component by multi-shot exposure, and causes the image capturing unit to capture second and third color component images, a displacement information acquiring unit that acquires displacement information; an image adding unit that aligns and adds the first color component images based on the displacement information to generate an added image; a calculator that calculates a first point spread function based on the displacement information; a first correcting unit that corrects the second and third color component images using the first point spread function; and a combining unit that combines the added image with the corrected second and third color component images.Type: GrantFiled: May 13, 2011Date of Patent: November 12, 2013Assignee: Casio Computer Co., Ltd.Inventor: Akira Hamada
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Patent number: 8582010Abstract: The invention relates to an image sensor, in particular to a CMOS image sensor, for digital cameras, having a plurality of pixels arranged in rows and columns, wherein the respective pixel comprises: a light sensitive detector element to generate electrical charge from incident light during an exposure procedure, a readout node, a transfer gate to which a transfer control pulse can be applied to allow a charge transfer from the detector element to the readout node, and a reset device to reset a charge present in the readout node to a reference value. The image sensor furthermore has a control device for the control of the transfer gate and of the of the reset device of the respective pixel.Type: GrantFiled: November 11, 2010Date of Patent: November 12, 2013Assignee: Arnold & Richter Cine Technik GmbH & Co. Betriebs KGInventors: Michael Cieslinski, Uwe Wessely, Achim Oehler
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Patent number: 8582021Abstract: A camera device includes a lens unit and a camera body detachable from the lens unit a communication interface communicably connecting the lens unit and the camera body. The lens unit includes an optical system, a diaphragm controller, an imaging portion including an image sensor, an image processor, a storage medium in which an accumulated exposure time and a limit exposure time of the image sensor are stored. The camera body includes a determiner portion which determines whether or not the accumulated exposure time is over the limit exposure time, and a notifying portion which notifies that the accumulated exposure time is over the limit exposure time when the determiner portion determines that the accumulated exposure time is over the limit exposure time.Type: GrantFiled: October 26, 2010Date of Patent: November 12, 2013Assignee: Ricoh Company, Ltd.Inventors: Toshiaki Nakahira, Keiji Himuro
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Patent number: 8582001Abstract: A device and methods are provided for producing a high dynamic range (HDR) image of a scene are disclosed and claimed. In one embodiment, method includes setting an exposure period of an image sensor of the digital camera and capturing image data based on the exposure period. The method may further include checking the image data to determine whether the number of saturated pixels exceeds a saturation threshold and checking the image data to determine whether the number of cutoff pixels exceeds a cutoff threshold. The method may further include generating a high dynamic range image based on image data captured by the digital camera, wherein the high dynamic range image is generated based on a minimum number of images to capture a full dynamic range of the scene.Type: GrantFiled: April 7, 2010Date of Patent: November 12, 2013Assignee: CSR Technology Inc.Inventors: Meir Tzur, Victor Pinto
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Patent number: 8576331Abstract: An image pickup apparatus capable of not only detecting whiteout or blackout but also effectively achieving exposure control. In the image pickup apparatus, an entire-screen brightness frequency distribution is detected based on a picked-up image signal. The image pickup apparatus calculates a first exposure control value from the entire-screen brightness frequency distribution. The image signal is divided into a plurality of small areas, and the brightness of each of the small areas is detected. The image pickup apparatus calculates a second exposure control value from the brightness. The image pickup apparatus calculates an exposure correction value based on the first exposure control value and the second exposure control value. An exposure value is calculated using the exposure correction value and an exposure value of the image signal. The image pickup apparatus performs exposure control of the image pickup section based on the calculated exposure value.Type: GrantFiled: May 17, 2012Date of Patent: November 5, 2013Assignee: Canon Kabushiki KaishaInventor: Hironori Kaida
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Patent number: 8576295Abstract: A plurality of images captured in different exposure times are aligned in order of exposure time, and pairs each of two images adjacent on the line are set. Common regions in long- and short-time images contained in a pair of interest are specified based on the pixel value distributions of the respective images. A location error correction amount for the long-time image is calculated to make the common regions match each other when the long- and short-time images are composited with each other. The long-time image undergoes image processing based on the location error correction amount. A composite image is generated by compositing a plurality of images obtained by performing image processing for each pair. The generated composite image is output.Type: GrantFiled: May 27, 2010Date of Patent: November 5, 2013Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Ito
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Patent number: 8570394Abstract: The present disclosure describes systems, methods, and mediums for adjusting an exposure of a digital image using a histogram. The systems, methods, and mediums may include generating, by a computing device, a histogram associated with plurality of pixels in an image and enabling adjustment of the histogram to generate an adjusted histogram. The systems, methods, and mediums may further include generating, by the computing device, at least one adjusted control setting by adjusting at least one control setting in response to generation of the adjusted histogram and capturing the image in a memory device in response to generating the at least one adjusted control setting.Type: GrantFiled: January 18, 2011Date of Patent: October 29, 2013Assignee: Intellectual Ventures Fund 79 LLCInventor: Joon Maeng