Based On Image Signal Patents (Class 348/364)
  • Patent number: 10616463
    Abstract: A system, a camera, and a method. The system may include a light device and a camera. The light device may be configured to emit light having a lighting frequency defined by on states and off states of the light device. The camera may be in view of the emitted light. The camera may have an image acquisition frequency configured to capture all images during the on states of the light device.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 7, 2020
    Assignee: Rockwell Collins, Inc.
    Inventors: Eric Johannessen, Jefferey M. McKee, Robert B. Wood
  • Patent number: 10587820
    Abstract: All image capturing apparatus includes an interval shooting section (51) that performs an interval shooting process, a lighten compositing section (54) that performs a lighten compositing process using images captured one by one by the interval shooting process, and a composite-image-in-progress displaying section (55) that, when a first operation is performed, causes a composite image in a first memory area, which is used as a compositing buffer for the lighten compositing process, to be displayed on an LCD monitor without causing the interval shooting process to be stopped.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: March 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Katsuya Yamamoto
  • Patent number: 10560637
    Abstract: An image processing system includes an image receiving unit configured to receive a picture sent by a remote shooting apparatus, an image analysis unit configured to analyze the picture to obtain exposure situations of respective parts in the picture, an exposure evaluation unit configured to evaluate exposure conditions of the respective parts in the picture based on the exposure situations of the respective parts in the picture to determine whether the respective parts in the picture are overexposed and determine overexposed parts, and an exposure information prompt unit configured to prompt an evaluation result in accordance with evaluation of the exposure evaluation unit.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: February 11, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Chuyue Ai, Weifeng Liu
  • Patent number: 10554913
    Abstract: A solid-state imaging device includes pixels forming pixel rows, and a scanning circuit that performs a reset operation of a photoelectric converter and a readout operation of a pixel signal based on charges generated by the photoelectric converter including charge transfer from the photoelectric converter to the holding unit. The pixel rows include imaging rows and focus detection rows. The scanning circuit performs an image capture scan of the imaging rows and a focus detection scan of the focus detection rows, independently, such that signals of the focus detection rows are output after signals from the imaging rows. The scanning circuit performs the focus detection scan such that the reset operation on the focus detection row does not overlap with a charge transfer period on an imaging row belonging to a unit pixel row neighboring a unit pixel row to which a focus detection row under the reset operation belongs.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: February 4, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yu Arishima, Yasuhiro Oguro, Shinichiro Shimizu, Satoshi Koizumi, Masaya Ogino
  • Patent number: 10547781
    Abstract: An apparatus includes a first circuit and a second circuit. The first circuit may be configured to (a) receive (i) a plurality of first samples selected from a first picture of a sequence of pictures, (ii) a plurality of smooth first samples corresponding to the plurality of first samples, (iii) a plurality of second samples selected from a second picture of the sequence of pictures, and (iv) a plurality of smooth second samples corresponding to the plurality of second samples, and (b) generate a plurality of adjusted first samples by combining the smooth first samples, the first samples, and the smooth second samples. The second circuit may be configured to generate a plurality of values based on the plurality of adjusted first samples and at least one of the plurality of first samples and the plurality of second samples. The first samples and the second samples generally have different levels of a lighting condition.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: January 28, 2020
    Assignee: Ambarella, Inc.
    Inventor: Elliot N. Linzer
  • Patent number: 10542217
    Abstract: The present disclosure relates to a shooting device, a shooting method, and a program capable of suppressing shooting of an image including large blurring due to motion of a camera such that an image with less blurring may be shot. The camera motion is detected, a distribution degree of a trajectory of the camera motion based on a camera motion detection result is calculated to be compared with a predetermined threshold, and start and finish of exposure is controlled on the basis of a comparison result. The present disclosure may be applied to the shooting device.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 21, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Hideshi Yamada, Daisuke Iso, Teppei Kurita, Shun Li
  • Patent number: 10516831
    Abstract: A vehicular image pickup device includes an image capturing unit, a fill light unit and a processing unit. The image capturing unit captures driving images. The fill light unit provides a fill light. The processing unit obtains a grayscale quantity distribution of pixels of the driving images on a plurality of grayscale levels. The processing unit numbers the pixels sequentially in the direction from the highest grayscale level to the lowest grayscale level according to the grayscale quantity distribution until the numbering reaches a predetermined number. The processing unit adjusts a fill light intensity of the fill light unit or a gain of the image capturing unit according to the grayscale level of the pixel whose number is the predetermined number.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: December 24, 2019
    Assignee: GETAC TECHNOLOGY CORPORATION
    Inventor: Kun-Yu Tsai
  • Patent number: 10511784
    Abstract: An imaging apparatus includes a shake detection unit in the main body and detects an amount of the shaking. A system control unit acquires frequency information by communication from an external device mounted on the main body. If the system control unit determines that a drive frequency of the external device mounted on the main body interferes with a drive frequency of the shake detection unit in a case where a mode that supports panning is set and panning of the imaging apparatus is performed, it corrects a shutter speed for panning and suppresses the influence caused by the interferences.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: December 17, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Atsushi Ichihara
  • Patent number: 10498969
    Abstract: An apparatus includes an image pickup unit that generates an image signal by shooting an object when light from the object is focused on an image pickup element by a lens unit, an image processing unit that generates an image from the image signal, an edge detection unit that detects an edge based on a window frame of an accessory accommodating the apparatus in the image, a calculation unit that determines an area on the basis of edge information and obtain a central position of the area, a lens driving unit including an adjustment unit that drives the lens unit and adjusts a zooming position such that the area is adjusted with respect to an image shooting range and a storage unit that stores the adjusted zooming position, and an exposure adjustment unit that performs an exposure adjustment in the image at the at least one adjusted zooming position.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Tatsuya Watanabe
  • Patent number: 10362221
    Abstract: An apparatus includes a processor circuit and a correction circuit. The processor circuit may be configured to receive a sequence of pictures. The correction circuit may be configured to (i) generate multiple smooth first samples by spatially smoothing multiple first samples selected from a first picture of said sequence of pictures, (ii) generate multiple smooth second samples by spatially smoothing multiple second samples selected from a second picture of said sequence of pictures, (iii) generate multiple adjusted first samples by combining said smooth first samples, said first samples and said smooth second samples, and (iv) generate multiple values based on said second samples and said adjusted first samples. The first samples and the second samples may have different levels of a lighting condition. The adjusted first samples and the second samples may have similar levels of the lighting condition.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: July 23, 2019
    Assignee: Ambarella, Inc.
    Inventor: Elliot N. Linzer
  • Patent number: 10298852
    Abstract: An image capturing apparatus that performs intermittent image capturing to acquire a moving image composed of combined plural images includes an imaging means, a luminance value acquisition means configured to acquire a luminance value of a subject of which image is to be captured, an exposure control means configured to control exposure according to the acquired luminance value, and a range setting means configured to set a predetermined range in which changing the exposure according to a change of the luminance value is not executed. The range setting means sets the predetermined range based on information related to time when intermittent image capturing is performed.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasuyoshi Miyazaki
  • Patent number: 10089768
    Abstract: An image processing device includes: a reference image selector configured to select one image of an image group as a reference image; a processing target image selector configured to select, as a processing target image, each of images of the image group other than the reference image; an arrangement order setting unit configured to set arrangement order of the images included in the image group; a conversion information estimation unit configured to estimate conversion information between the images adjacent to each other; a deformed image creation unit configured to create a deformed image by subjecting the processing target image to an image conversion using the conversion information cumulatively from the processing target image to the reference image in the arrangement order; and a color image creation unit configured to create a color image using the deformed images created based on the respective images and the reference image.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: October 2, 2018
    Assignee: OLYMPUS CORPORATION
    Inventors: Takeshi Otsuka, Yoichi Yaguchi
  • Patent number: 10034000
    Abstract: A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 24, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Woo-shik Kim, Hyun-mun Kim, Dae-sung Cho, Dmitri Birinov, Dae-hee Kim, Woong-il Choi
  • Patent number: 10033950
    Abstract: An image sensor control device includes an image sensor including focus detecting pixels; an object brightness detecting unit that detects brightness of an object; a mode determining unit that determines a first readout mode or a second readout mode based on the detected brightness of the object; a read-out unit that reads out the focus detecting pixels in the determined readout mode; and a focus detecting unit that performs focus detection by using focus detection data read out from the focus detecting pixels. In an implementation, in the first readout mode, the read-out unit reads out the focus detecting pixels in a first interval, and, in the second readout mode, the read-out unit reads out the focus detecting pixels in a second interval, which is longer than the first interval.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: July 24, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Kenji Ishibashi
  • Patent number: 9973693
    Abstract: An image processing apparatus that is capable of generating a wide-angle composite image in which halation and black collapse are reduced without needing lots of memory quantity. An obtaining unit obtains images that are photographed with different exposure values while changing a photographing target area continuously. A detection unit detects an overlapped area where an object overlaps between adjacent images among the images obtained by the obtaining unit. A generation unit generates a composite area in which overlapped areas detected by the detection unit are overlapped so as not to exceed a predetermined count. A computation unit computes composition ratios of the images obtained by the obtaining unit based on the exposure values and signal values at the times when the images are photographed. A composition unit generates a wide-angle composite image by compositing images in the composite area with the composition ratios computed.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: May 15, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hironori Kaida
  • Patent number: 9961270
    Abstract: An imaging system includes: an imaging unit configured to capture an image in a temporally continuous manner; a change rate setting unit configured to variably set a change rate of brightness of image continuously captured by the imaging unit; a parameter setting unit configured to be capable of variably setting a light adjustment parameter for altering the change rate of the brightness of the image such that the change rate set by the change rate setting unit is obtained; a photometry unit configured to acquire a photometric value indicating the brightness of the image; and a light adjustment unit configured to generate, based on the photometric value, a light adjustment control signal in line with a light adjustment profile for causing the photometric value to reach a predetermined target value of the brightness within a certain time period.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: May 1, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Aiko Sakai
  • Patent number: 9934438
    Abstract: A scene recognition method includes acquiring an image and sensor data corresponding to the image and determining, in accordance with the sensor data, whether a scene of the image is a non-high-dynamic range (HDR) scene. The method also includes extracting an image feature of the image when it is not determined whether the scene of the image is the non-HDR scene and determining, in accordance with the image feature, whether the scene of the image is an HDR scene.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: April 3, 2018
    Assignee: Huawei Device (Dongguan) Co., Ltd.
    Inventors: Kang Qian, Cheng Du, Wei Luo, Bin Deng
  • Patent number: 9875423
    Abstract: An image pickup apparatus capable of calculating a light amount change characteristic of light from an object according to a state of the object. In the image pickup apparatus, the luminance change-based flicker detection for detecting flicker of a light source by calculating the light amount change characteristic of light from a photographing object based on sequential image data obtained by an image pickup device, and the luminance distribution-based flicker detection for detecting flicker by calculating the light amount change characteristic based on luminance distribution data generated from the image data are selectively performed according to the brightness of the photographing environment.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: January 23, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kenji Miwa
  • Patent number: 9832379
    Abstract: Devices, systems and methods are disclosed for discontinuously capturing and transmitting images from a camera. The camera initializes and powers down on-demand components, awaiting a signal on an interrupt pin. Upon receiving a signal on the interrupt pin, the camera powers up the on-demand components, captures a series of images and transmits the series of images. The discontinuous transmission of images allows the camera to reduce a power consumption and a memory usage while reducing a latency between a capture request and the transmission of images.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: November 28, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: Smita Neglur
  • Patent number: 9813638
    Abstract: Methods and apparatus, including computer program products, for a light painting live view. A method includes, in a device comprising at least a processor, a memory, a display and a camera device having an on-screen viewfinder, accessing the camera, capturing individual frames of footage, each of the captured frames being displayed through the on-screen viewfinder in cumulative succession, rendering the captured frames on a graphical processing unit (GPU), sending the captured frames through a shader program, generating at least two images, a first image saved to the memory and a second image displayed on the display, and rendering the first image into the second image to generate a final image.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 7, 2017
    Assignee: HI PABLO, INC.
    Inventors: Ryan Harrison Warnberg, Michelle Kirstin McSwain
  • Patent number: 9769391
    Abstract: Provided is an imaging device capable of expanding the dynamic range and eliminating differences in level occurring in low luminance regions between segments having different transmittances. A number of high luminance pixels calculation section calculates the number of high luminance pixels for each segment, on the basis of pre-image data obtained through pre-imaging while all the segments of a light modulation element have high transmittances. A main control section determines, as a dimming target segment, a segment having a number of high luminance pixels equal to or greater than a first number of pixels. A low luminance pixel specifying section specifies low luminance pixels among the pixels corresponding to the dimming target segment. A gain correction section performs gain correction on pixel signal values of the low luminance pixels, with a gain value corresponding to a ratio of the high transmittance to the low transmittance.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 19, 2017
    Assignee: FUJIFILM Corporation
    Inventor: Hiroyuki Oshima
  • Patent number: 9686475
    Abstract: The amount of resources needed to provide automatic exposure control (AEC) for a camera of a computing device, as well as the amount of latency required to determine an appropriate exposure setting for current conditions, can be improved utilizing an ambient light sensor (ALS) that is integrated with a camera module corresponding to the camera. The ALS can capture data regarding the amount of ambient light around the device, and a microprocessor or other component of the camera module can analyze the data using an AEC algorithm or other such process to determine one or more initial exposure settings for the camera. This process can be completed without sending image data to a host processor or other such component. Providing relatively accurate initial exposure settings can, in at least many situations, enable the AEC algorithm to more quickly converge to proper settings than is possible using conventional approaches.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: June 20, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: Smita Neglur
  • Patent number: 9628721
    Abstract: An imaging apparatus is provided, which includes an image capturer configured to generate a plurality of short-exposure images by performing continuous imaging for a first time in a first imaging mode in which imaging is performed through exposure over the first time, a processor configured to control the image capturer to generate at least one short-exposure image by performing additional imaging after the first time if an imaging command is input in a state where the first imaging mode and an HDR (High Dynamic Range) mode are set, and an image processor configured to synthesize the short-exposure images generated by the image capturer by successively accumulating the short-exposure images.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: April 18, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung-hwan Moon, Young-geol Kim, Jae-young Roh, Na-youn Park, Je-seung Yeon
  • Patent number: 9571742
    Abstract: Evaluation values relating to image capture are detected from at least two out of a plurality of images having different exposure amounts, which are used to generate a composite image. From a plurality of detected evaluation values relating to image capture, an evaluation value relating to image capture used to control an operation of an image capture apparatus is selected under a predetermined operation, thereby improving the detection accuracy of evaluation values relating to image capture in an HDR moving image capture operation.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: February 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinobu Watanabe
  • Patent number: 9544502
    Abstract: A dark exposure control device comprises a dark exposure performing processor, an aperture-stop, and an aperture-stop driving processor. The dark exposure performing processor detects an image signal generated by an imaging device while the shutter is closed. The aperture-stop adjusts the amount of light incident on the imaging device. The aperture-stop driving processor adjusts the opening degree of the aperture-stop to smaller than the opening degree set for a main exposure while the dark exposure performing processor is operated.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 10, 2017
    Assignee: PENTAX RICOH IMAGING COMPANY, LTD.
    Inventors: Naoto Asakura, Yoshitaka Kimura, Kosei Kosako
  • Patent number: 9443299
    Abstract: This disclosure provides techniques for assessing quality of a deposited film layer of an organic light emitting diode (“OLED”) device. An image is captured and filtered to identify a deposited layer that is to be analyzed. Image data representing this layer can be optionally converted to brightness (grayscale) data. A gradient function is then applied to emphasize discontinuities in the deposited layer. Discontinuities are then compared to one or more thresholds and used to ascertain quality of the deposited layer, with optional remedial measures then being applied. The disclosed techniques can be applied in situ, to quickly identify potential defects such as delamination before ensuing manufacturing steps are applied. In optional embodiments, remedial measures can be taken dependent on whether defects are determined to exist.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: September 13, 2016
    Assignee: Kateeva, Inc.
    Inventor: Christopher Cocca
  • Patent number: 9402033
    Abstract: An image sensing apparatus that carries out image sensing continuously and inputs a plurality of images, having a digital signal processing circuit that detects, at each input image, from image data thereof, an object that satisfies a preset condition, a first exposure value determination unit that calculates a first exposure value from the image data, a second exposure value determination unit that calculates a second exposure value based on the detected object, and a selection unit that selects either the first exposure value, the second exposure value, a currently set exposure value, or an exposure value calculated based on a luminance of an area referenced when calculating a currently set exposure value as an exposure value to be used for a next image sensing based on object detection results obtained by the digital signal processing circuit.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: July 26, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kenji Takahashi
  • Patent number: 9392160
    Abstract: A method and apparatus performing scene-adaptive auto-focusing for image capture with a variable-focus lens. The array of color pixels includes a array of half-covered light sensors to obtain lens-focus state information. The exposure time of the plurality of partially-covered light sensors is dynamically selected as long-exposure or short-exposure, based upon a current measurement of a property (e.g., brightness, or color-specific brightness) of a selected region of interest within a scene to be captured by the array. Then, focus state information corresponding to the selected region of interest is obtained by capturing light from the selected region of interest with first and second partially-covered light sensors. The exposure time of the partially-covered light sensors can be changed based on whether the brightness is greater than a predetermined threshold value.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Roee Sfaradi, Amit Eisenberg
  • Patent number: 9385154
    Abstract: There is provided a solid-state image sensor including a pixel region in which a plurality of pixels of a preset plurality of colors are arranged in a two-dimensional matrix shape, a vertical signal line corresponding to a pixel column of the pixel region, a trigger line corresponding to a pixel row of the pixel region and supplying a trigger pulse corresponding to each of the colors of the plurality of pixels, and a trigger pulse supply part supplying, via the trigger line, the trigger pulse in a manner that a signal voltage of each pixel of a predetermined color in the pixel region is read out for each pixel row via the vertical signal line, and thereafter, a signal voltage of each pixel of another color in the pixel region is read out for each pixel row via the vertical signal line.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 5, 2016
    Assignee: Sony Corporation
    Inventor: Jun Okuno
  • Patent number: 9294681
    Abstract: The exposure control apparatus is for performing exposure control for a camera mounted on a vehicle in accordance with brightness of a recognition area set in an image ahead of the vehicle taken by the camera. The exposure control apparatus includes a measuring means for measuring brightness of a photometric area showing a landscape more distant from the vehicle than a landscape shown by the recognition area in each of images successively taken by the camera, a detection means for detecting brightness variation with time of the photometric area based on measurement results by the measuring means for images taken by the camera at different times, and a control means configured to predict a timing at which the brightness of the recognition area changes based on the brightness variation with time of the photometric area, and perform exposure control of the camera at the predicted timing.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: March 22, 2016
    Assignee: DENSO CORPORATION
    Inventors: Toshikazu Murao, Takayuki Kimura
  • Patent number: 9253427
    Abstract: A solid-state image pickup apparatus which is capable of enlarging dynamic range and taking images at high frame rate. The solid-state image pickup apparatus has a pixel unit having first pixels with a first sensitivity to the light and second pixels with a second sensitivity lower than the first sensitivity, and the first pixels and the second pixels being alternately arranged in a row direction. Pixel signals are read out from the first pixels as first pixel signals, and analog-to-digital conversion of the first pixel signals is performed to obtain first digital signals. Pixel signals are read out from the second pixels as second pixel signals, and analog-to-digital conversion of the second pixel signals is performed to obtain second digital signals. The first digital signals and the second digital signals are output as image data.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: February 2, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshio Awatani
  • Patent number: 9247160
    Abstract: A multi-step exposure method using an electronic shutter and a photography apparatus using the same are provided. The photography apparatus includes an image sensor, and a control unit which divides an area of the image into a first area and a second area using brightness information of the acquired image, and controls so that a first row group and a second row group of the second area have different exposure times. As a result, an image with a wider dynamic range is provided.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: January 26, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Tae-Ho Lee, Jeong-Won Lee, Jae-Joon Moon, Il-Do Kim
  • Patent number: 9239946
    Abstract: In an image within which a face pattern is detected, when a ratio of a skin color pixel is equal to or smaller than a first threshold value in a first region and a ratio of a skin color pixel is equal to or greater than a second threshold value in a second r region, the vicinity of the first region is determined to be a face candidate position at which the face pattern can exist. Face detection is carried out on the face candidate position. The second region is arranged in a predetermined position relative to the first region.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: January 19, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kan Torii, Masakazu Matsugu, Katsuhiko Mori, Hiroshi Sato, Yusuke Mitarai
  • Patent number: 9148578
    Abstract: The number of images to be composited used to generate a dynamic range-extended image, and exposure conditions for respective images to be composited are determined. A proper exposure condition is determined for a subject corresponding to a moving object region, and one of the exposure conditions of the images to be composited is changed to the proper exposure condition. An image capture apparatus specifies a moving object region for a plurality of images to be composited, which are captured under the exposure conditions of the images to be composited including the proper exposure condition. A dynamic range-extended image is generated using pixels of the image to be composited, which is captured under the proper exposure condition, as those of the moving object region, which is specified for the plurality of images to be composited.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: September 29, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hidetoshi Tsubaki
  • Patent number: 9131158
    Abstract: There is provided an apparatus including a moving-image capturing apparatus including a clipping unit configured to clip an image signal according to an image size read from an image sensor based on zoom ratio information, and a size conversion unit configured to perform an image size conversion process as necessary on the image signal clipped by the clipping unit based on the zoom ratio information.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: September 8, 2015
    Assignee: SONY CORPORATION
    Inventor: Zhiwen Li
  • Patent number: 9113069
    Abstract: When automatic exposure (AE) for AF is performed, an imaging apparatus sets a fastest speed or a predetermined fixed speed as a diaphragm driving speed to reduce the time to be spent for the AF. On the other hand, when an interchangeable lens in which the diaphragm driving speed can be changed is attached to the imaging apparatus, and AE is performed for moving image recording, the imaging apparatus slows down the diaphragm blade driving speed compared to the speed at the time of AE for AF in consideration of the quality of moving image recording and display.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: August 18, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masahiro Kawarada
  • Patent number: 9036049
    Abstract: In an image capturing apparatus, a subject image is converted into an image signal, which undergoes automatic correction processing including white balance correction processing, and further undergoes image quality change processing. A first evaluation value indicating a largest value of an R signal, a G signal, and a B signal of the image signal undergone the image quality change processing and a second evaluation value indicating a luminance of the image signal undergone the image quality change processing are detected. A control evaluation value is calculated using weighted average of the first evaluation value and the second evaluation value according to at least one of an amount of image quality changing effect due to the image quality change processing and a reliability of the automatic correction processing, and exposure control is performed based on the control evaluation value.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: May 19, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinya Urisaka
  • Patent number: 9013625
    Abstract: 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: Grant
    Filed: June 25, 2013
    Date of Patent: April 21, 2015
    Assignee: Sony Corporation
    Inventors: Hisashi Akiyama, Yoshinori Takagi
  • Patent number: 9001258
    Abstract: A first state where an image is captured with a predetermined exposure in which an aperture of a diaphragm is a first aperture and a shutter speed is a first shutter speed is changed to a second state where an image is captured with the predetermined exposure in which the aperture of the diaphragm is a second aperture larger than the first aperture and the shutter speed is a second shutter speed higher than the first shutter speed, and a focal point is adjusted. The second aperture is set to be as large as possible within a range of maintaining the predetermined exposure.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 7, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Ryuichi Shiohara
  • Patent number: 9001266
    Abstract: An imaging device performs control for changing evaluation values calculated for specific areas which are at least a portion of segment areas around a segment area where a brightness difference calculated by subtracting non-light emission image data from pre-light emission image data is negative or a segment area where a brightness difference calculated by subtracting the pre-light emission image data from the non-light emission image data is positive so that the evaluation values are reduced when the brightness difference is calculated by subtracting the non-light emission image data from the pre-light emission image data and an absolute value of the negative evaluation values are reduced when the brightness difference is calculated by subtracting the pre-light emission image data from the non-light emission image data, in a case where the brightness differences of all segment areas include negative and positive values together.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: April 7, 2015
    Assignee: FUJIFILM Corporation
    Inventor: Kazunori Tamura
  • Patent number: 8995792
    Abstract: A digital camera includes: a horizontal reduction (resizing) processor 301 for reducing a RAW image from single-sensor color imaging device to an image corresponding to a video recording size in an input line direction; a memory section 303 storing horizontally resized image data; a plurality of vertical reduction (resizing) processors 304, 306, and 308 reducing (resizing), in a vertical direction orthogonal to the input line direction, a plurality of pieces of reduced line data read out from the memory section 303; and horizontal reduction (resizing) processors 310 and 312 reducing a plurality of images reduced (resized) in the horizontal and vertical directions back into images of a display size and a face detection size in the input line direction.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: March 31, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventor: Toshinobu Hatano
  • Patent number: 8982237
    Abstract: A portable electronic device with camera function and an image capture method with auto exposure control. The disclosed method comprises the following steps: obtaining a pre-view frame from a camera module; dividing the pre-view frame into a plurality of blocks and calculating representative brightness values of the blocks; assigning weight values to the blocks according to the representative brightness values; obtaining a weighted brightness value by performing a weighted operation on the representative brightness values based on the weight values of the blocks; setting an auto exposure parameter of the camera module based on the weighted brightness value; and controlling the camera module for capturing images based on the auto exposure parameter.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 17, 2015
    Assignee: HTC Corporation
    Inventor: Wan-Yi Chen
  • Patent number: 8982232
    Abstract: An image processing apparatus that, when combining a plurality of images, improves image quality by reducing noise in a region in which movement is detected, wherein a noise in the moving region is reduced by replacing the region in which movement is detected, with a low-noise image.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: March 17, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Satoru Kobayashi
  • Patent number: 8982286
    Abstract: A chart generation unit generates an adjustment chart, and a projection unit projects the adjustment chart onto a circular cylinder. A parameter acquiring unit acquires 12 parameters in total, relating to the positions of four corners and middle points of a top side and a bottom side of a chart and lateral expansion of the chart, the chart being input by a user through manipulations of an operation unit. A transform function determination unit calculates, from the total of 12 parameters, an accurate transform function for projecting an image onto the circular cylinder. An image conversion unit applies geometric transformation to the image based on the calculated transform function.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 17, 2015
    Assignee: Casio Computer Co., Ltd.
    Inventor: Tetsuro Narikawa
  • Patent number: 8958008
    Abstract: A camera includes: a taking lens forming an image of a subject; an image pickup unit; a subject brightness acquisition unit acquiring the brightness information of the subject on the basis of the output of the image pickup unit; a control unit controlling the exposure according to the brightness information acquired by the subject brightness acquisition unit; and a storage unit storing the information indicating the optical state of the taking lens before the subject brightness acquisition unit acquires the brightness information. The control unit determines whether or not the brightness information is acquired again by the subject brightness acquisition unit according to the information about the optical state of the taking lens stored in the storage unit when the subject brightness acquisition unit previously acquired the brightness information, and the information about the optical state of the taking lens when the latest brightness information is acquired.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 17, 2015
    Assignee: Olympus Imaging Corp.
    Inventor: Yasunori Kudo
  • Patent number: 8953056
    Abstract: A method, apparatus, and system for dynamic range estimation of imaged scenes for automatic exposure control. For a given exposure time setting, certain areas of a scene may be brighter than what a camera can capture. In cameras, including those experiencing substantial lens vignetting, a gain stage may be used to extend dynamic range and extract auto-exposure data from the extended dynamic range. Alternatively, dynamic range can be extended using pre-capture image information taken under reduced exposure conditions.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: February 10, 2015
    Assignee: Micron Technology, Inc.
    Inventor: Ilia Ovsiannikov
  • Publication number: 20150036040
    Abstract: An exposure control apparatus which is capable of making a backlight judgment with accuracy using image data on a main subject and image data on a photographer and controlling exposure according to the judgment result. First image data is generated according to a main subject image formed by light from the main subject via a first shooting optical system, and second image data is generated according to a photographer image formed by light from a photographer via a second shooting optical system. First luminance information is obtained based on the first image data, and second luminance information is obtained based on the second image data. According to the first luminance information and the second luminance information, whether or not the main subject is in backlight scene is judged, and based on a result of the judgment, exposure for the main subject is controlled.
    Type: Application
    Filed: July 29, 2014
    Publication date: February 5, 2015
    Inventor: Kazuki Konishi
  • Patent number: 8947556
    Abstract: An image pickup apparatus that is capable of reducing the load of the process required to combine images with different exposures to generate a composite image. An image pickup unit performs continuous image pickup that shoots a subject continuously under different exposure conditions. A control unit controls the image pickup unit so that the exposure condition for the first shot in a current set, which is a second or later set, is coincident with the exposure condition for the last shot in the previous set when a plurality of sets of the continuous image pickup are performed. A composing unit composes the images acquired by one set of the continuous image pickup by the image pickup unit to generate one output image.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: February 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Taro Kobayashi
  • Publication number: 20150015774
    Abstract: An image capturing apparatus includes an image capturing unit which captures an image of an object and outputs an image, a switching unit which switches modes between a first mode in which the image capturing unit outputs a first image and then outputs a second image having an exposure value different from the first image, and a second mode in which the image capturing unit continuously outputs an image not used for compositing, an exposure control unit which controls an exposure value for capturing an image of an object, following change in object luminance, when a parameter related to change in object luminance exceeds a predetermined range in which an exposure value for capturing an image of the object is not controlled to follow the change in object luminance, and a setting unit which sets the predetermined range.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventor: Kazuhiko Sugie
  • Patent number: 8934031
    Abstract: A light intensity control device includes a fixed opening 261, an aperture stop part 26 for controlling a light flux of incident light, a light intensity aperture part 24 for changing the size of an opening by moving a plurality of aperture blades to limit a light intensity of transmitted light and a ND filter 25 having a transparent area 253 and a light blocking area 254, which is arranged to be movable between a first light blocking state where the transparent area 253 faces the fixed opening 261 of the aperture stop part 26 and a second light blocking state where the light blocking area 254 faces the fixed opening. The moving of the ND filter 25 is carried out when the opening area of the light intensity aperture part 24 is a maximum.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: January 13, 2015
    Assignee: JVC Kenwood Corporation
    Inventors: Fumio Nidaira, Yasufumi Nakaaki