Automatic Control Of Iris, Stop, Or Diaphragm Patents (Class 348/363)
-
Patent number: 7995137Abstract: An exposure compensation method automatically generates an accurate exposure value to clearly show the profiles of objects in front of a black background or a white background. First, initial edge energy is derived from luminance values for pixels in a digital image having an initial exposure value. Maximum edge energy is obtained by varying an exposure compensation value for the digital image, and an optimal exposure compensation value according to the maximum edge energy is also obtained. If a difference between the maximum edge energy and initial edge energy is larger than a threshold value, a current exposure value is set to the initial exposure value compensated by the optimal exposure compensation value. Otherwise, the initial exposure value is directly designated as a current exposure value.Type: GrantFiled: May 1, 2006Date of Patent: August 9, 2011Assignee: Himax Technologies, LimitedInventor: Jung Chung Hsu
-
Patent number: 7995139Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.Type: GrantFiled: October 7, 2009Date of Patent: August 9, 2011Assignee: Canon Kabushiki KaishaInventor: Takeshi Ikeda
-
Patent number: 7995134Abstract: At least one exemplary embodiment is directed to an image pickup apparatus that has an external sensor for detecting brightness separately from an image sensor for obtaining an image pickup signal and controls the insertion and removal of a filter into and from an image pickup optical system in accordance with the brightness of the subject, using brightness information obtained from the external sensor and the image pickup signal.Type: GrantFiled: December 7, 2010Date of Patent: August 9, 2011Assignee: Canon Kabushiki KaishaInventor: Kazutoshi Kawada
-
Patent number: 7991280Abstract: There is provided an apparatus that includes a receiving unit configured to receive instructions for focus adjustment; an image-pickup unit configured to perform image-pickup of an object image input through a focus lens; a setting unit configured to set a focus detecting area to be used at a time of detection of a focus state of the focus lens; a light control unit configured to control an amount of light incident on the image-pickup unit; and a focus adjusting unit configured to detect a focus signal representing the focus state in the focus detecting area to move the focus lens based on the focus signal and a position of the focus lens corresponding to the focus signal.Type: GrantFiled: February 11, 2010Date of Patent: August 2, 2011Assignee: Canon Kabushiki KaishaInventor: Hiroyuki Ogino
-
Patent number: 7978967Abstract: An interchangeable lens includes an obtaining unit for obtaining first control information and second control information from the camera body, the first control information being an instruction to control the first drive unit (diaphragm), the second control information being an instruction to control the second drive unit (focus lens, etc), a storage unit for storing the obtained second control information, and a controller for controlling the first drive unit and the second drive unit based on the first and second control information obtained. The second control information (reservation control information) is an instruction to control the second drive unit when the obtaining unit receives the first control information after receiving the second control information.Type: GrantFiled: May 14, 2009Date of Patent: July 12, 2011Assignee: Panasonic CorporationInventors: Koji Shibuno, Mitsuyoshi Okamoto
-
Patent number: 7965889Abstract: An image processing apparatus has an enlargement processing function of displaying an image on an image display unit at a designated enlargement magnification, and a color conversion processing function of changing a designated conversion source color to a conversion destination color. This image processing apparatus determines at least one of the conversion source color and conversion destination color by acquiring color information from a predetermined area in the displayed image. Upon determining one of the conversion source color and conversion destination color, control according to the enlargement magnification of the enlargement processing function is made so as to assure an amount, which is equal to or larger than a predetermined value, of color information included in the predetermined area.Type: GrantFiled: January 31, 2006Date of Patent: June 21, 2011Assignee: Canon Kabushiki KaishaInventor: Teruhiko Ueyama
-
Patent number: 7961246Abstract: A blade driving device for use in cameras that includes a mechanical shutter blade that openably and closably disposed in front of a CCD, and is capable of blocking light passing through an exposure aperture. The blade driving device also includes a motor that drives the shutter blade, and a control means that drive-controls the motor. In this blade driving device, photography is performed such that the storage of an electric charge starts in the CCD and the closing motion of the shutter blade is completed. Opening energization is applied to the motor in order to allow the shutter blade to pre-perform an opening motion before performing a closing motion whenever a still image is photographed. Thus, the shutter blade always reaches an opened state prior to photography even if the shutter blade is closed without permission by receiving an impulsive force from the outside because of, for example, being dropped. Therefore, photography can be reliably performed.Type: GrantFiled: November 25, 2003Date of Patent: June 14, 2011Assignee: Nidec Copal CorporationInventor: Nobuaki Watanabe
-
Patent number: 7936393Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.Type: GrantFiled: August 17, 2007Date of Patent: May 3, 2011Assignee: Fujifilm CorporationInventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
-
Patent number: 7934877Abstract: A diaphragm blade includes a light-shielding, thin-plate blade base made of laser absorptive resin to regulate an aperture, and a first shaft portion made of laser transmissive resin and provided on one surface of the blade base. The first shaft portion includes a cylindrical member which is welded to the protruding weld portion, a protruding weld portion integrally formed with the blade base, and a recess formed at the back side of the protruding weld portion. The cylindrical member has a first recess defined at one end thereof near the blade base and coming into contact with the protruding weld portion, and a second recess defined at the other end. A contact surface of the protruding weld portion is melted with laser beam transmitted through the cylindrical member, whereby the protruding weld portion is welded to the cylindrical member.Type: GrantFiled: January 22, 2008Date of Patent: May 3, 2011Assignee: Canon Kabushiki KaishaInventors: Chikara Aoshima, Eriko Namazue, Makoto Miyawaki
-
Publication number: 20110085074Abstract: The image processing apparatus comprises, an image acquisition unit configured to acquire, as an image, a result of imaging, on an image sensor unit, light traveling from an object via an opening of a stop, a control unit configured to control a shape of the opening based on a function which defines a temporal change of the shape of the opening when the image acquisition unit acquires the image, and a detection unit configured to detect a blur state in the image based on the function.Type: ApplicationFiled: July 31, 2009Publication date: April 14, 2011Applicant: Canon Kabushiki KaishaInventors: Tetsuri Sonoda, Mahoro Anabuki
-
Patent number: 7911528Abstract: At least one exemplary embodiment is directed to an image pickup apparatus that has an external sensor for detecting brightness separately from an image sensor for obtaining an image pickup signal and controls the insertion and removal of a filter into and from an image pickup optical system in accordance with the brightness of the subject, using brightness information obtained from the external sensor and the image pickup signal.Type: GrantFiled: April 13, 2006Date of Patent: March 22, 2011Assignee: Canon Kabushiki KaishaInventor: Kazutoshi Kawada
-
Patent number: 7907206Abstract: There is provided an image pickup apparatus having a simple structure that enables reduction of shutter release time lag and shutter control with highly accurate shutter time.Type: GrantFiled: November 10, 2005Date of Patent: March 15, 2011Assignee: Canon Kabushiki KaishaInventor: Yasuhiro Toyoda
-
Publication number: 20110043682Abstract: A method for assist in focal length detection is adapted to a digital camera having a flash. The method includes the following steps. First, the flash of the digital camera is actuated and an image having a face portion is captured. Afterwards, an exposure feature value of the face portion in the image is calculated. A focus range comparison table is looked up according to the exposure feature value to obtain an initial focus position. Then, a focus procedure is performed according to the initial focus position to obtain a target focal length. After the target focal length is obtained, a flash feature value of the image is further calculated, and a guide number (GN) and a diaphragm value are set according to the flash feature value.Type: ApplicationFiled: January 5, 2010Publication date: February 24, 2011Applicant: ALTEK CORPORATIONInventors: Chan-Min Chou, Tsung-Pin Lu
-
Publication number: 20110019071Abstract: An image pickup apparatus includes a pixel unit divided into at least two regions which generates pixel signals, driving controllers which controls reading of the pixel signals from the regions, a storage unit storing pixel signals for one screen, a timing controller controlling a timing when the pixel signals are read from the storage unit based on a setting value of an input frame rate, and a timing generator which generates a driving signal for performing the reading processes of the pixel signals the regions in parallel in terms of time when the frame rate is larger than a predetermined threshold value and generates a driving signal for performing the reading processes of the pixel signals from the regions in series in terms of time when the frame rate is not larger than the predetermined threshold value, and which supplies the generated driving signal to the driving controllers.Type: ApplicationFiled: July 16, 2010Publication date: January 27, 2011Inventor: Ryosuke AMANO
-
Patent number: 7876376Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.Type: GrantFiled: November 26, 2007Date of Patent: January 25, 2011Assignee: Canon Kabushiki KaishaInventor: Takeshi Ikeda
-
Patent number: 7876366Abstract: An electronic camera includes an imaging device. The imaging device carries out an exposing operation for exposing an object scene and an amplifying operation for amplifying a raw image signal generated by the exposing operation, according to a set imaging parameter. A CPU selects one program chart satisfying a parameter condition, from a plurality of program charts stored in a flash memory, and extracts three imaging parameters from the selected program chart. The extracted imaging parameters are set to the imaging device. The imaging parameter here includes exposure time, amount of aperture, and AGC gain as parameter elements. In addition, the parameter condition includes an AGC gain condition in that each of three AGC gains defining respectively the three imaging parameters is equal to or less than a predetermined value and an exposure time condition in that three exposure times defining respectively the three imaging parameters are shorter.Type: GrantFiled: August 8, 2006Date of Patent: January 25, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Kazutaka Yoshizawa, Kohei Fukukawa, Kazuhiro Tsujino
-
Patent number: 7864242Abstract: An image sensing apparatus has an image sensing element which accumulates received light as a charge, a mechanical shutter which travels to shield the image sensing element, and a scan unit which makes a scan for starting charge accumulation. The image sensing apparatus executes the scan for starting charge accumulation prior to traveling of the mechanical shutter and controls the scan for starting charge accumulation and traveling of the shutter to serve as a front curtain and a rear curtain of a shutter. Note that a scan pattern setting unit (113b) sets the scan pattern of the charge accumulation start scan based on information associated with a mounted photographing lens.Type: GrantFiled: July 14, 2006Date of Patent: January 4, 2011Assignee: Canon Kabushiki KaishaInventors: Akihiro Namai, Hiroshi Kikuchi
-
Patent number: 7852400Abstract: An image pickup apparatus which is capable of preventing light diffraction from being caused by a density step or a thickness step of a filter, thereby preventing degradation of resolution during still image shooting, and securing the dynamic range of exposure control during both moving image shooting and still image shooting. In the image pickup apparatus, an image pickup element converts light incident thereon from a lens into an electric signal. A diaphragm mechanism changes the amount of light incident on the image pickup element. An ND filter covers an aperture of the diaphragm mechanism such that the aperture can be opened and closed, thereby adjusting the amount of light incident on the image pickup element after passing through the aperture.Type: GrantFiled: July 24, 2007Date of Patent: December 14, 2010Assignee: Canon Kabushiki KaishaInventor: Takeshi Ikeda
-
Patent number: 7839449Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.Type: GrantFiled: August 17, 2007Date of Patent: November 23, 2010Assignee: Fujifilm CorporationInventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
-
Patent number: 7822328Abstract: A method for controlling a digital photographing apparatus and an apparatus adopting the method, which include obtaining first information of a subject at a time t1 at a first sensitivity, obtaining second information of the subject at a time t2 that is different from time t1 at a second sensitivity, and obtaining an image of the subject using the first information and the second information, wherein at least one of the obtaining of the first information and the obtaining of the second information is performed in a state in which a position where an image of the subject is formed on a photographing element of the photographing apparatus is maintained constant despite shaking of the photographing apparatus.Type: GrantFiled: June 21, 2007Date of Patent: October 26, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-bong Lee, Nyun-woo Nam
-
Patent number: 7784950Abstract: An image projecting apparatus has an integrator for generating plural secondary-light-source images for generating illumination light with a uniform intensity; and a variable stop mechanism arranged at or near a position conjugate with the secondary-light-source images. The variable stop mechanism has a base plate having a fixed aperture; and a stop blade which moves across the aperture for changing a quantity of light. The change in the quantity of light passing through said variable stop caused by the movement of said stop blade is greater than a change in a size of an effective region of a stop aperture.Type: GrantFiled: September 7, 2006Date of Patent: August 31, 2010Assignee: Konica Minolta Opto, Inc.Inventor: Yasumasa Sawai
-
Patent number: 7787043Abstract: Provided is a lens apparatus in which serial communication and parallel communication between a camera body and the lens apparatus are performed and resumption of the serial communication is accomplished after occurrence of a communication error, and controlling of a controlled object being controlled through the parallel communication is transferred to temporally controlling through the serial communication, in which, by setting a state of the controlled object when the controlling is transferred to controlling through the serial communication, to be coincident with a state during controlling through the parallel communication, the controlled object to be controlled through the parallel communication is not affected by an effect caused due to a communication error in the serial communication.Type: GrantFiled: August 28, 2007Date of Patent: August 31, 2010Assignee: Fujinon CorporationInventor: Chikatsu Moriya
-
Aperture value calculation for a digital camera capable of displaying and/or recording a movie image
Patent number: 7787020Abstract: There is disclosed a digital camera in which an aperture value is regulated between the open aperture value and a predetermined aperture value during acquisition of a movie image. The predetermined aperture value can be determined based on a range of a luminous flux for use in focal detection. The predetermined aperture value can be set, for example, such that the range between the open aperture value and the predetermined aperture value is suitable for a focal detecting operation.Type: GrantFiled: August 16, 2007Date of Patent: August 31, 2010Assignee: Olympus Imaging Corp.Inventor: Yoji Watanabe -
Patent number: 7787045Abstract: A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 130 or image data obtained by subjecting the image data generated by the CMOS sensor 130 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, and the microcomputer 110 controls so that movable mirrors 121a and 121b to enter an optical path of an image pickup optical system after the amount of light from a subject is obtained based on the image data generated by the CMOS sensor 130, a strobe 137 emits light, and measurement results of an AE sensor 133 are obtained. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.Type: GrantFiled: December 5, 2006Date of Patent: August 31, 2010Assignee: Panasonic CorporationInventors: Hiroshi Ueda, Kenichi Honjo, Naoto Yumiki, Toshio Makabe, Kenji Maeda, Kaoru Mokunaka, Kazuhiro Ishimaru
-
Patent number: 7787760Abstract: A lens aperture-adjustment device of a closed circuit television camera for capable of switching between automatic and manual adjustments of lens aperture is provided. The device includes a geared motor for driving aperture blades of a lens aperture mechanism; a drive circuit for driving the geared motor in response to a first drive signal for automatic adjustment or a second drive signal for manual adjustment; a comparison circuit for making a comparison between a lightness information signal responsive to the imaging environment and a first reference signal and outputting the first drive signal; a differential amplifier to which a manual adjustment signal entered by an operator and a second reference signal for defining the limit value of the drive amount of the geared motor are input, the differential amplifier for outputting the second drive signal; and a selection circuit for connecting the first drive signal or the second drive.Type: GrantFiled: March 30, 2007Date of Patent: August 31, 2010Assignee: Fujinon CorporationInventor: Koshi Kuwakino
-
Patent number: 7782386Abstract: An optical apparatus includes a variable optical-property element, a driving circuit driving the variable optical-property element, and an image sensor. In order to compensate a change of an imaging state caused by at least one factor of temperature, humidity, a manufacturing error, a change of an object distance, and a zoom state, photographing is performed while referring to a look-up table to change driving information provided to the variable optical-property element, and the driving information that the high-frequency component of a photographed image is practically maximized is assumed so that the variable optical-property element is driven by the driving information to perform photographing.Type: GrantFiled: March 24, 2003Date of Patent: August 24, 2010Assignee: Olympus CorporationInventors: Kimihiko Nishioka, Kazuhito Hayakawa, Kazuya Nishimura, Hisashi Goto
-
Patent number: 7782393Abstract: A method for capturing multiple sets of image data with an electronic camera having a shutter and an electronic shutter for selectively allowing light to reach an image sensor comprises opening the shutter and the electronic shutter, allowing light to reach the image sensor for a first exposure time, closing the electronic shutter, reading out pixel data captured during the first exposure time, allowing light to reach the image sensor for a second exposure time, and, reading out pixel data captured during the second exposure time. The method may be used to obtain multiple differently exposed images of a scene for combination into a high dynamic range image.Type: GrantFiled: September 30, 2009Date of Patent: August 24, 2010Assignee: Dolby Laboratories Licensing CorporationInventors: Gregory John Ward, Helge Seetzen
-
Publication number: 20100201866Abstract: A digital photographing apparatus may include an imaging device which captures an image of a subject using an illumination apparatus that operates using alternating current (AC) power, and a shutter speed derivation unit which derives at least one shutter speed that is n/2 times a reciprocal of the frequency at which the illumination apparatus operates when the frequency at which the illumination apparatus operates is not n/2 times the frame rate of the imaging device, according to a result of comparing the frequency at which the illumination apparatus operates and the frame rate of the imaging device. When using the digital photographing apparatus to photograph, frequency information of the illumination apparatus may be easily obtained and flicker may be prevented by using the frequency information to set the shutter speed.Type: ApplicationFiled: January 20, 2010Publication date: August 12, 2010Applicant: Samsung Digital Imaging Co., Ltd.Inventors: Jae-hyo Jung, Yong-gi Kim
-
Patent number: 7764322Abstract: A testing apparatus (100) for an image capture device (401) includes a liquid crystal device (101). The liquid crystal device (101) includes an array of pixels (102), which may actively or passively be changed from a transparent state to an opaque or semi-opaque state. The array of pixels are capable of segmentation into a plurality of predefined regions (107), which may be columns (108) or rows (208). A liquid crystal device driver (105) is configured to actuate the predefined regions (107), individually and sequentially, in a sweep pattern across the liquid crystal device. The testing apparatus (100) may be used to measure a variety of parameters associated with image capture devices, including exposure duration, continuous shutter frequency, and flash-shutter lag. The testing apparatus (100) is capable of operation in a variety of ambient lighting conditions.Type: GrantFiled: June 29, 2006Date of Patent: July 27, 2010Assignee: Motorola, Inc.Inventors: Fan He, Michael W. Frenzer
-
Patent number: 7762732Abstract: A light quantity control device includes: a bottom board having an opening; a first blade, a supporting blade and a second blade linearly moving in opposing directions and controlling light quantity passing through the opening; and a driving lever connected to the set of blades and driving the set of blades by rotation of the driving lever. The driving lever rotates within degrees centering on a phantom line A passing through a rotational center of the driving lever and being parallel with the moving directions of the blades.Type: GrantFiled: February 10, 2009Date of Patent: July 27, 2010Assignee: Seiko Precision Inc.Inventors: Phichet Numnual, Takashi Nakano, Makoto Mikami
-
Patent number: 7760265Abstract: An image sensor shutter module for use in an image sensor outputting image data with scanning line by line and a method for controlling the same are provided. The method for controlling a shutter for use in an image sensor includes: opening electronic shutters for every imaging line; opening mechanical shutter after all of the electronic shutters of every imaging line are opened; closing the mechanical shutter after a predetermined exposure time passes; and sequentially carrying out reading line image data of every imaging line with respect to each imaging line.Type: GrantFiled: September 8, 2005Date of Patent: July 20, 2010Inventors: Hyung-Suk You, Seong-Cheol Byun
-
Patent number: 7760240Abstract: Provided is a method of controlling a digital photographing apparatus in which when a shutter release button is pressed while in one of a plurality of still image photographing modes, a still image is photographed according to a photographing condition of the still image photographing mode. If the shutter release button is pressed together with one of a plurality of setting buttons in the still image photographing mode, a moving picture is photographed according to the photographing condition of the still image photographing mode.Type: GrantFiled: January 19, 2005Date of Patent: July 20, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-yoon Won, Dong-min Kim
-
Patent number: 7755664Abstract: An image pickup apparatus having a function for generating wide dynamic range, synthesized image by synthesizing image signals corresponding to a plurality of frames of different exposure amounts. A correcting section for correcting exposure amounts of at least one image signal of the image signals corresponding to the plurality of frames of different exposure amounts.Type: GrantFiled: February 15, 2007Date of Patent: July 13, 2010Assignee: Olympus Optical Co., LtdInventors: Minoru Kakinuma, Hidetoshi Fukuda, Hiroaki Koseki, Takumi Momose, Osamu Inagaki
-
Patent number: 7742695Abstract: A camera system for driving a diaphragm by a stepping motor including first and second coils and capable of 2-phase driving, includes a display unit configured to display an image signal, a live view control unit configured to display image signals sequentially read from an image sensor in the display unit, and a control unit configured to set only one of the first and second coils to be in an energized state when the live view control unit displays the image signals in the display unit.Type: GrantFiled: December 19, 2007Date of Patent: June 22, 2010Assignee: Canon Kabushiki KaishaInventor: Minoru Hirose
-
Patent number: 7738018Abstract: An image capture control method and apparatus thereof is provided. The method includes capturing automatic exposure environmental data by an image capture unit, calculating initial shutter exposure period and initial sensitivity in accordance with the environmental data, and determining in accordance with the specific mode. Under the specific mode, capturing the image based on the initial shutter exposure period and initial sensitivity when the initial shutter exposure period is less than or equal to the predetermined period. Modify parameters for image capture to obtain final shutter exposure period and final sensitivity when the initial shutter exposure period exceeds the predetermined period. Capturing the image with the final shutter exposure period (t?) and processing the captured image with the final sensitivity (ISO?).Type: GrantFiled: September 4, 2007Date of Patent: June 15, 2010Assignee: Asia Optical Co., Inc.Inventors: Wen-Hung Hsieh, Yu-Ting Lee
-
Patent number: 7738030Abstract: An image processing method of performing various image correction processes to a photographed image and printing the photographed image comprises the steps of: inputting image information to which photographing condition information is added; analyzing the characteristic of the input image information; performing an imago correction process of improving image quality to the photographed image on the basis of the characteristic of the analyzed image information; discriminating the photographing condition information added to the photographed image; and determining an image correction process to be performed in a step of performing the image correction process on the basis of the photographing condition information discriminated in the discriminating step, whereby it becomes possible to provide a high quality print-output result of reflecting the intention of a user at a time of photographing.Type: GrantFiled: January 19, 2007Date of Patent: June 15, 2010Assignee: Canon Kabushiki KaishaInventors: Yuji Akiyama, Makoto Torigoe, Manabu Yamazoe, Ryosuke Iguchi, Takashi Fujita
-
Patent number: 7736073Abstract: An image-capturing apparatus adapted to receive a detachable lens apparatus having a mechanical shutter includes an image-capturing unit configured to capture an image of a subject, a communication unit configured to enable communication with the lens apparatus, and a control unit configured to perform an image generating operation using a video signal supplied from the image-capturing unit. The control unit controls timing of the image generating operations performed together with a plurality of opening and closing operations of the mechanical shutter on the basis of information received via the communication unit.Type: GrantFiled: September 5, 2006Date of Patent: June 15, 2010Assignee: Canon Kabushiki KaishaInventor: Yuji Tsuda
-
Patent number: 7738029Abstract: The present invention relates to an image-taking apparatus such as a digital camera which is equipped with a release button and shoots a still image when the release button is pressed. It can perform proper metering for still images and reduce a time lag between a half press and the time when it is ready to shoot a still image. The image-taking apparatus has a through image display section which displays a through image which is moving images for display before a half press, a metering section which performs both metering for a through image and metering for a still image before the half press, a distance measuring section which measures distance in response to a half press, and a shooting section which shoots a still image in response to a full press.Type: GrantFiled: January 11, 2006Date of Patent: June 15, 2010Assignee: Fujifilm CorporationInventor: Koji Kobayashi
-
Patent number: 7733399Abstract: A method of acquiring traveling characteristics of rear blades in a camera having an image sensing element including a plurality of pixels. The method comprising acquiring the traveling characteristics of the rear blades based on an image signal output from a preset partial area of the image sensing element, and storing the acquired traveling characteristics (S34, S36), shifting the partial area to a different position along the traveling direction of the rear blades (S38), and updating the traveling characteristics of the rear blades stored in the storage medium, based on an image signal output from the partial area shifted to the different position (S35, S36).Type: GrantFiled: August 27, 2007Date of Patent: June 8, 2010Assignee: Canon Kabushiki KaishaInventor: Yuki Totori
-
Publication number: 20100134662Abstract: An image capture device (2) includes a sensor (4) having an active area comprising a plurality of pixels (6) and a shutter array (8) for controlling the exposure of individual pixels. The pixels are grouped in a plurality of pixel subsets and are arranged to capture a plurality of time-separated lo-res images, which can be viewed sequentially as a movie or combined to form a hi-res still image.Type: ApplicationFiled: May 8, 2008Publication date: June 3, 2010Applicant: ISIS INNOVATION LTDInventor: Gil Bub
-
Publication number: 20100118176Abstract: A microshutter array has a frame having a light transmissive portion. Linear microshutter elements extend across the light transmissive portion and in parallel to each other. Each microshutter element has a flat blade extended in a length direction and first and second torsion arms extending outwards from each side of the blade in the length direction, the blade extending across the light transmissive portion. There is at least one electrode associated with each linear microshutter element and extended in the length direction parallel to the microshutter element.Type: ApplicationFiled: January 21, 2010Publication date: May 13, 2010Inventors: John N. Border, Herbert J. Erhardt, J. Kelly Lee, Marek W. Kowarz, Robert M. Boysel
-
Patent number: 7708479Abstract: An imaging device and a portable information terminal device of the present invention include: a blade driving unit (20) made up of a base plate (21) having an opening portion (21a) serving as an optical path, an infrared light cut filter blade (23) movably supported by the base plate between a receded position displaced from the opening portion and a position facing the opening portion, and a first electromagnetic driving source (26) that drives the infrared light cut filter blade (23); a lens optical system (32, 33, 34) arranged on the optical path passing through the opening portion; an imaging element (42) that images an object through the lens optical system; and a control unit (51) that drives and controls the blade driving unit (20) and the imaging element (42). The control unit drives and controls the first electromagnetic driving source (26) so as to move the infrared light cut filter blade (23) to the receded position when using an infrared light.Type: GrantFiled: April 27, 2006Date of Patent: May 4, 2010Assignee: Nidec Copal CorporationInventors: Nobuaki Watanabe, Yoshiyuki Ohzeki, Mitsutaka Hidaka
-
Patent number: 7702230Abstract: To provide a digital camera capable of causing a focus sensor to detect a focus while outputting to an image sensor image data for providing appropriate exposure after having adjusted an aperture ratio of an aperture in an image capture optical system such that appropriate exposure is achieved. A digital camera divides light from a subject having passed through an aperture into two beams of light; causes one of the beams to enter the image sensor to thus cause the image sensor to capture a subject image; and causes the other beam to enter the focus sensor to thus cause the focus sensor to detect a focus from the other beam of light. The digital camera adjusts an aperture ratio of the aperture such that the quantity of the other beam reaches the minimum quantity of light at or above which the focus sensor can detect a focus.Type: GrantFiled: August 17, 2006Date of Patent: April 20, 2010Assignee: Eastman Kodak CompanyInventor: Takayuki Kijima
-
Patent number: 7697059Abstract: An apparatus has an image sensing device, and a signal processing device for performing a first image sensing operation for making the image sensing device perform an image sensing operation in an exposure state to obtain a sensed image signal, and a second image sensing operation for making the image sensing device perform an image sensing operation in a non-exposure state to obtain a sensed image signal, and processing the sensed image signal obtained by the first image sensing operation by the sensed image signal obtained by the second image sensing operation. The signal processing device determines in accordance with the image sensing time of the first image sensing operation whether or not the second image sensing operation is performed.Type: GrantFiled: July 20, 2005Date of Patent: April 13, 2010Assignee: Canon Kabushiki KaishaInventors: Yoichi Yamagishi, Makoto Hiramatsu, Keihiro Kurakata
-
Publication number: 20100020189Abstract: An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mechanism for changing an amount of light input to an image pickup element by changing an aperture diameter, a filter unit, having a single density or a plurality of densities, for changing the amount of the light input to the image pickup element by its advancing towards and withdrawing from the aperture diameter of the iris mechanism, a unit for driving the iris mechanism and the filter unit independently, and a control unit for setting the filter unit in one of two types of states such as fully covering the aperture diameter of the iris mechanism and fully withdrawing from the aperture diameter in the still image photography.Type: ApplicationFiled: October 7, 2009Publication date: January 28, 2010Applicant: CANON KABUSHIKI KAISHAInventor: Takeshi Ikeda
-
Patent number: 7648246Abstract: A projector includes: an imaging structure that photographs an image projected on a projection object to take a photographed image; an imaging control module that performs exposure adjustment in the imaging structure to attain a preset target exposure; a control module that sets the target exposure in the imaging ctrl module; an angle information acquisition module that obtains angle information representing an inclination of the projector to the projection object; and a storage unit that stores a map representing a variation in target exposure against the angle information. The control module controls the angle information acquisition module to obtain the angle information, refers to the map stored in the storage unit to specify a target exposure corresponding to the obtained angle information, and sets the specified target exposure in the imaging control module.Type: GrantFiled: February 2, 2006Date of Patent: January 19, 2010Assignee: Seiko Epson CorporationInventor: Noriaki Miyasaka
-
Patent number: 7646977Abstract: Methods and Systems are provided to enable automatically taking a series of depth of field bracket photos by varying the f-stop and shutter speed for a particular scene to keep the exposure constant. The method may be practiced on a digital camera which has been equipped with software in accordance with the present invention.Type: GrantFiled: January 17, 2007Date of Patent: January 12, 2010Assignee: Gateway, Inc.Inventor: Michael R. Flannery
-
Patent number: 7626613Abstract: Auto focus control processing for still image recording is performed while continuously performing movie recording when an initiation instruction for a still image recording preparation process is issued during movie recording. Movie recording is interrupted to perform still image recording processing only when an initiation instruction for still image recording processing is detected during movie recording. In addition, in the auto focus control for still image recording during movie recording, focus detection is performed within a distance range that is narrower than the distance range during auto focus control performed for normal still image recording.Type: GrantFiled: April 20, 2006Date of Patent: December 1, 2009Assignee: Canon Kabushiki KaishaInventor: Masaru Kawamura
-
Patent number: 7623775Abstract: Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range from the maximum to the minimum aperture sizes. In the present invention, an aperture size which is larger than the maximum size and a size which is smaller than the minimum size (extra aperture size or extra small size) are respectively set at outside the range that secures the capability. The aperture sizes of the diaphragm at outside the specified range are used at least for one of the following: automatic exposure (AE) adjustment, auto focus (AF) adjustment, electronic zoom, displaying a moving image, taking for recording the moving image, and taking under a low resolution by thinning out pixels.Type: GrantFiled: August 17, 2007Date of Patent: November 24, 2009Assignee: Fujifilm CorporationInventors: Akihisa Yamazaki, Atsushi Misawa, Shigeru Kondo, Michitaka Nakazawa
-
Patent number: 7612801Abstract: Digital cameras are calibrated so that detailed highlights and shadows in scenes being photographed are reproduced in digital images of those scenes by calibrating holographic data obtained from target images at those scenes. In one embodiment the target image is obtained from an actual target having black and white, and optionally gray, target areas; and in another embodiment, the target image is obtained from the scene being photographed. In both embodiments, histographic data is manipulated so that shadow and highlight data spikes are automatically placed in boundary areas by automatically adjusting lens aperture and/or shutter speed prior to taking the desired photograph of the scene. The resulting photograph is adjusted for highlight and shadow details.Type: GrantFiled: July 24, 2007Date of Patent: November 3, 2009Inventor: Edward Alan Pierce