Dependent Upon Operation Or Characteristic Of Iris, Flash, Lens, Or Filter) Patents (Class 348/224.1)
  • Patent number: 11010633
    Abstract: A technology capable of effectively and stably correcting brightness unevenness in an image obtained by imaging is provided. An image processing method includes an image obtaining step of obtaining an original image obtained by imaging an imaging object together with a substantially uniform background, an approximation step of specifying an approximation formula for approximating a two-dimensional luminance profile of the original image to a probability density function of a two-dimensional normal distribution, and a correction step of correcting a luminance value of each pixel constituting the original image on the basis of a luminance value of the two-dimensional luminance profile expressed by the approximation formula.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 18, 2021
    Assignee: SCREEN HOLDINGS CO., LTD.
    Inventors: Hiroki Fujimoto, Kazutaka Taniguchi
  • Patent number: 10983339
    Abstract: To suppress the reduction in transmission efficiency due to the change of the chief ray angle in spite of using structural color filters. A solid-state imaging element includes: a light receiving element included in a plurality of pixels; structural color filters located above at least part of the light receiving element and each including a metal film a periodic opening pattern with a structural period smaller than a prescribed wavelength; and an interconnection layer located below the light receiving element and configured to acquire a signal of light detected by the light receiving element. The structural period is different between the structural color filters in accordance with a chief ray angle of incident light, and the structural period of the periodic opening pattern becomes smaller as the chief ray angle becomes larger, relative to the structural period of the periodic opening pattern at the chief ray angle of 0°.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 20, 2021
    Assignee: SONY CORPORATION
    Inventor: Sozo Yokogawa
  • Patent number: 10965853
    Abstract: A control apparatus includes a controller configured to switch a simultaneous light emission mode that causes all of the at least three light source units to emit lights and a sequential light emission mode that causes the at least three light source units to sequentially emit the lights in association with imaging. The controller causes the at least three light source units to sequentially emit the lights in synchronization with each of at least three imaging signals transmitted from the imaging apparatus in the sequential light emission mode. The controller is configured to switch between the simultaneous light emission mode and the sequential light emission mode based on information from a selector provided in at least one of the imaging apparatus and the accessory and configured to select the simultaneous light emission mode and the sequential light emission mode.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: March 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Chiaki Inoue, Yuichi Kusumi, Yoshiaki Ida
  • Patent number: 10868957
    Abstract: Provided is an image processing apparatus and method. The image processing method includes obtaining, by a sensor and a lens array, a first image corresponding to an original image, identifying the first image obtained by the sensor and the lens array, rearranging the first image in response to rearranging a transformation matrix based on the sensor and the lens array, and generating a second image by performing a color interpolation on the rearranged first image.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: December 15, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Deokyoung Kang, Yang Ho Cho, Dong Kyung Nam, Daekun Yoon, Kyuhwan Choi
  • Patent number: 10722116
    Abstract: Imaging various regions of the eye is important for both clinical diagnostic and treatment purposes as well as for scientific research. Diagnosis of a number of clinical conditions relies on imaging of the various tissues of the eye. The subject technology describes a method and apparatus for imaging of the back and/or front of the eye using multiple illumination modalities, which permits the collection of one or more of reflectance, spectroscopic, fluorescence, and laser speckle contrast images.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: July 28, 2020
    Assignee: Vasoptic Medical Inc.
    Inventors: Abhishek Rege, M. Jason Brooke
  • Patent number: 10659806
    Abstract: Provided are a video encoding method and apparatus to which an interpolation filter is applied according to characteristics of an image for motion compensation, and a video decoding method and apparatus corresponding thereto. The video encoding method according to various embodiments includes determining a degree of change between neighboring samples of at least one integer pixel unit adjacent to a reference sample of an integer pixel unit of a current sample and the reference sample; determining an interpolation filter among interpolation filters having different frequency passbands and configured to produce reference samples of a sub-pixel unit to predict the current sample, based on the degree of change; determining a predicted sample value of the current sample by using a reference sample of a sub-pixel unit produced by applying the determined interpolation filter; and encoding a residual value between the predicted sample value and a sample value of the current sample.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Elena Alshina, Alexander Alshin
  • Patent number: 10630881
    Abstract: A lens detection system includes a system chip, and the system chip includes a first lens selection pin and a protocol path pin. A lens detection method includes performing a reset step by the system chip; enabling the first lens selection pin by the system chip; detecting a first lens identification code via the protocol path pin by the system chip; loading first lens data by the system chip and entering a first lens operation mode for controlling an externally connected first lens if the first lens identification code is detected; and disabling the first lens selection pin by the system chip if the first lens identification code is undetected.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 21, 2020
    Assignee: VIVOTEK INC.
    Inventors: Chien-Ming Yeh, Ting-Chia Chang, Ren-Wei Lin, Wen-Yuan Li
  • Patent number: 10609295
    Abstract: Systems, apparatuses, and methods are presented for taking a combination of images taken synchronous in time with one another. According to one example, the present disclosure proposes one or more sensor arrays, each of which comprises multiple pixel sensors arranged to capture image data responsive to light exposure. Light is incident on the respective sensor arrays during substantially synchronous exposures. The one or more sensor arrays are configured such that the image data captured by the respective sensor arrays during the synchronous exposure differ in at least one of a luminance output or a color profile from one another.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: March 31, 2020
    Assignee: Snap Inc.
    Inventor: Scott Lerner
  • Patent number: 10447943
    Abstract: An image capturing apparatus includes a setting unit configured to set an exposure for image capturing by an image capturing unit, wherein in a mode for acquiring a plurality of images for a moving image by performing intermittent image capturing using the image capturing unit, the setting unit smooths data on a brightness corresponding to a plurality of image capturing operations in the intermittent image capturing and sets an exposure for one image capturing operation in the intermittent image capturing according to the smoothed data, and an acquisition unit configured to acquire first information including at least one of an image capture interval for the intermittent image capturing, a frame rate of the moving image, and shake information during image capturing of a subject. The setting unit determines a degree of the smoothing based on the first information acquired by the acquisition unit.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: October 15, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hinako Nakamura
  • Patent number: 10447949
    Abstract: An endoscope apparatus includes an imaging element, a video signal generating circuit, an illuminator, a light quantity detector, and one or more controllers. An imaging area in which a plurality of pixels are disposed includes a scanning area. The one or more controllers control the imaging element such that at least parts of exposure periods of the pixels disposed in at least a part of the scanning area overlap each other, in a case in which the light quantity is less than a predetermined quantity. The one or more controllers control the illuminator such that the light source is turned on in a period in which at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other, in a case in which the light quantity is less than the predetermined quantity.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: October 15, 2019
    Assignee: Olympus Corporation
    Inventor: Eiichi Kobayashi
  • Patent number: 10447939
    Abstract: An endoscope apparatus includes an imaging element, a video signal generating circuit, an illuminator, and one or more controllers. An imaging area in which a plurality of pixels are disposed includes a scanning area. In a case in which a first operation mode is set, the one or more controllers control the imaging element such that at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other. In a case in which a second operation mode is set, the one or more controllers control the illuminator such that the light source is turned on in a period in which at least parts of the exposure periods of the pixels disposed in at least a part of the scanning area overlap each other.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: October 15, 2019
    Assignee: Olympus Coproration
    Inventors: Eiichi Kobayashi, Yutaka Konomura, Masayoshi Yokota, Kiyotomi Ogawa
  • Patent number: 10354298
    Abstract: Embodiments of the invention provide systems and techniques for analyzing an existing light fixture in its installed environment and, based on the sensed location of the light and its environmental illumination pattern, identifying at least one LED retrofit fixture that may be used to replace the existing light fixture.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: July 16, 2019
    Assignee: LEDVANCE LLC
    Inventors: Matthew Sallee, Anthony W. Catalano
  • Patent number: 10210602
    Abstract: A system and method are provided for normalizing a camera focal length. A perspective geometry estimator accepts a scanned image from a camera having an undefined focal length, and generates a normalized focal length estimate for the image. The normalized focal length estimate is compared to a normalized focal length density distribution. If the normalized focal length estimate meets a minimum threshold of probability, the normalized focal length estimate is selected and the image is processed using the selected normalized focal length estimate. If the normalized focal length estimate fails to meet the minimum threshold of probability, the image is processed using the highest probability prior normalized focal length from the normalized focal length density distribution.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: February 19, 2019
    Assignee: Sharp Laboratories of America, Inc.
    Inventor: Richard John Campbell
  • Patent number: 10187583
    Abstract: There is provided a control device that controls exposure of a first pixel group and a second pixel group disposed in a single imaging surface. The control device performs exposure control of the second pixel group independently of exposure control of the first pixel group in accordance with a designated focus position.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: January 22, 2019
    Assignee: Sony Corporation
    Inventors: Daisuke Kasai, Motoshi Yamaguchi
  • Patent number: 10182247
    Abstract: To allow graders to make optimally looking content of HDR scenes for various rendering displays, we invented an image encoder (202) comprising: an input (240) for a high dynamic range input image (M_HDR); an image grading unit (201) arranged to allow a human color grader to specify a color mapping from a representation (HDR_REP) of the high dynamic range input image defined according to a predefined accuracy, to a low dynamic range image (Im_LDR) by means of a human-determined color mapping algorithm, and arranged to output data specifying the color mapping (Fi(MP_DH)); and an automatic grading unit (203) arranged to derive a second low dynamic range image (GT_IDR) by applying an automatic color mapping algorithm to one of the high dynamic range input image (M_HDR) or the low dynamic range image (Im_LDR). We also describe and interesting new saturation processing strategy useful in the newly emerging high dynamic range image handling technology.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: January 15, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Mark Jozef Willem Mertens
  • Patent number: 10171743
    Abstract: An image pickup apparatus (10) includes an image sensor (102) which photoelectrically converts an optical image formed via an image pickup optical system to output image data, an estimator (104a) which estimates a luminance value of a saturated pixel of the image sensor based on a single image corresponding to the image data, a setter (104b) which sets an exposure parameter based on the luminance value, and a controller (107) which performs photography based on the exposure parameter.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 1, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Ko Ichihara
  • Patent number: 10136070
    Abstract: An image capturing apparatus comprises an image capturing unit, a memory configured to store image data that is output at a predetermined framerate from the image capturing unit, a write unit configured to write the image data to the memory, a readout unit configured to read out the image data stored in the memory, a display unit configured to display an image based on the image data read out by the readout unit, and a control unit configured to control reading out of the image data by the readout unit, wherein the control unit performs control such that a frame of image data read out by the readout unit differs between when electronic zoom is operating and when electronic zoom is not operating.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: November 20, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Wakamiya
  • Patent number: 10134064
    Abstract: Embodiments of the invention provide systems and techniques for analyzing an existing light fixture in its installed environment and, based on the sensed location of the light and its environmental illumination pattern, identifying at least one LED retrofit fixture that may be used to replace the existing light fixture.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: November 20, 2018
    Inventors: Matthew Sallee, Anthony W. Catalano
  • Patent number: 10136097
    Abstract: RAW camera images may be processed by a computer system using either a particular application or a system level service. In either case, at least some parameters needed for the processing are preferably separated from the executable binary of the application or service, and are provided in separate, non-executable, data-only files. Each of these files can correspond to a particular camera or other imaging device. When a user of the system attempts to open a RAW image file from an unsupported device, the local system may contact a server for on-demand download and on-the-fly installation of the required support resource.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: November 20, 2018
    Assignee: Apple Inc.
    Inventors: Michael Balle-Pedersen, David Hayward, Travis W. Brown
  • Patent number: 10056417
    Abstract: An image-sensor structure is provided. The image-sensor structure includes a substrate with a plurality of photoelectric conversion units formed therein, a plurality of color filters formed above the substrate, wherein the color filters are divided into red color filters, green color filters and blue color filters, a plurality of microlenses correspondingly formed above the color filters, a transparent material layer formed above the microlenses, a first filter blocking infrared (IR) light formed above the transparent material layer, a second filter allowing transmission of visible light formed above the first filter, and a lens module formed above the second filter.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 21, 2018
    Assignee: Visera Technologies Company Limited
    Inventors: Chin-Chuan Hsieh, Yu-Kun Hsiao, Wei-Ko Wang, Li-Kai Lee
  • Patent number: 10028649
    Abstract: An example system to capture digital images includes: a colposcope device configured to capture a digital image during a colposcopy procedure; and an image processing module programmed to digitally process the digital image, including: a filter module programmed to filter certain aspects of the digital image; and an overlay module programmed to allow the digital image to be annotated. In other examples, colposcope devices include: a cradle, the cradle being configured to hold a portable computing device, the cradle including an aperture; and an optical capture device, the optical capture device including a constant magnification lens system, the constant magnification lens system being configured to direct light through the aperture.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: July 24, 2018
    Assignee: Welch Allyn, Inc.
    Inventors: Jon R. Salvati, Raymond A. Lia, Ervin Goldfain, Robert L. Vivenzio, Kenzi L. Mudge, David J. Maier
  • Patent number: 10021361
    Abstract: Provided are an image processing device, an imaging device, an image processing method, and a program that can obtain image data subjected to appropriate multi-area white balance processing subsequently while reducing required storage capacity. A white balance gain is acquired for each pixel of original image data (S11). A white balance base value is determined (S12) and a white balance ratio indicating the ratio of the white balance gain to the white balance base value is acquired for each pixel of the original image data (S13). Each pixel value of the original image is multiplied by the white balance ratio to acquire processed image data (S14). Each pixel value of the processed image data is multiplied by the white balance base value to acquire image data in which the white balance gain is applied to each pixel of the original image data.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: July 10, 2018
    Assignee: FUJIFILM Corporation
    Inventor: Shinya Fujiwara
  • Patent number: 9986216
    Abstract: An aberration correction apparatus includes an aberration information acquisition unit which acquires aberration information from an imaging lens; a spectroscopic characteristic information acquisition unit which acquires spectroscopic characteristic information of an imaging device which performs a photoelectric conversion of an optical image that is formed in the imaging lens; and an aberration information correction unit which performs a correction according to the spectroscopic characteristic information with respect to the acquired aberration information.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: May 29, 2018
    Assignee: Sony Corporation
    Inventors: Takuma Tanae, Rui Kouno
  • Patent number: 9907137
    Abstract: An illumination source for a camera includes one or more LEDs, and an electrical circuit that selectively applies power from the DC voltage source to the LEDs, wherein the illumination source is suitable for handheld portable operation. In some embodiments, the electrical circuit further includes a control circuit for driving the LEDs with electrical pulses at a frequency high enough that light produced has an appearance to a human user of being continuous rather than pulsed, the control circuit changing a pulse characteristic to adjust a proportion of light output having the first characteristic color spectrum output to that having the second characteristic color spectrum output. Some embodiments provide an illumination source including a housing including one or more LEDs and a control circuit that selectively applies power from a source of electric power to the LEDs, thus controlling a light output color spectrum of the LEDs.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: February 27, 2018
    Assignee: Lemaire Illumination Technologies, LLC
    Inventors: Gary A. Lebens, Charles T. Bourn, Charles A. Lemaire
  • Patent number: 9866759
    Abstract: A method is disclosed for improving the quality of photographs taken in low-light conditions by adjustment of shutter speed and digital gain based on a shutter prioritization value. Using a network of sensor, a digital camera processes various parameters, such as luminance of the scene and movement of the camera or of subjects within the scene, to compute a shutter prioritization value. The value is then used to select the most appropriate shutter speed and digital gain combination from a constant exposure curve. Higher prioritization values correspond to faster shutter speeds and higher digital gain. Lower prioritization values correspond to lower shutter speeds and lower digital gain. In further embodiments, the shutter prioritization value may be manually customized by a user in order to produce artistic effects.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 9, 2018
    Assignee: GoPro, Inc.
    Inventor: Camden Ramsay
  • Patent number: 9854180
    Abstract: In one embodiment, a camera includes an image sensor within a camera housing that converts light entering the camera housing through an optical filter into digital image data. The optical filter can have a variable opacity. A processor in communication with the image sensor identifies operation settings for the optical filter and adjusts an opacity level of the optical filter over an exposure period in accordance with the operation settings for the optical filter. In addition, the processor modifies values of the digital image data based at least on the operation settings for the optical filter.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 26, 2017
    Assignee: RED.COM, LLC
    Inventors: Anthony Wayne Davis, Robert Rose, Thomas Graeme Nattress, Peter Jarred Land, James H. Jannard
  • Patent number: 9826176
    Abstract: An image sensor generates first digital samples and second digital samples during respective first and second sampling intervals, the first digital samples including at least one digital sample of each pixel of a first plurality of pixels, and the second digital samples including at least one digital sample of each pixel of a second plurality of pixels. A sum of the first digital samples is accumulated within a first counter as the first sampling interval transpires, and a sum of the second digital samples is accumulated within the first counter as the second sampling interval transpires.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 21, 2017
    Assignee: Rambus Inc.
    Inventor: Thomas Vogelsang
  • Patent number: 9781321
    Abstract: The disclosed technology relates to an electronic device configured to use the device's own display to provide an illumination source for front-facing image sensors and to a method of using the same. An electronic device for capturing a digital image using a front-facing image sensor and a digital display device includes a command input module configured to receive a command to capture the digital image, an illumination adjustment module configured to adjust the display device to an imaging illumination condition in response to the command, and a front-facing image sensor module configured capture the digital image using the front-facing image sensor under the predetermined illumination condition.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 3, 2017
    Assignee: QUALCOMM Incorporated
    Inventor: Stepan N. Moskovchenko
  • Patent number: 9742969
    Abstract: An attachment optical system detachably mounted between a lens system and an image pickup apparatus, includes: a receiver receiving first information for correcting lateral chromatic aberrations caused by the lens system; a computer deriving, based on the first information and optical characteristics of the attachment optical system, second information for correcting lateral chromatic aberrations; and a transmitter transmitting the second information to the image pickup apparatus, in which the first and second information include information for obtaining lateral chromatic aberration amounts under conditions of zoom, focus and f-number, based on ratio of image height to maximum image height, in which the first and second information indicate shift amounts of blue/red relative to green radially about optical axis, and in which the shift amounts of blue/red in the first information and in the second information are properly set as functions of ratio of image height to maximum image height.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 22, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Shinichiro Yakita
  • Patent number: 9706132
    Abstract: Systems and methods in accordance with embodiments of the invention pattern array camera modules with ? filter groups. In one embodiment, an array camera module includes: an M×N imager array including a plurality of focal planes, where each focal plane includes an array of pixels; an M×N optic array of lens stacks, where each lens stack corresponds to a focal plane, and where each lens stack forms an image of a scene on its corresponding focal plane; where each pairing of a lens stack and focal plane thereby defines a camera; where at least one row in the M×N array of cameras includes at least one red camera, one green camera, and one blue camera; and where at least one column in the M×N array of cameras includes at least one red camera, one green camera, and one blue camera.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 11, 2017
    Assignee: FotoNation Cayman Limited
    Inventors: Semyon Nisenzon, Kartik Venkataraman
  • Patent number: 9699482
    Abstract: An image encoder includes an input for a high dynamic range input image (M_HDR); an image grading unit arranged to allow a human color grader to specify a color mapping from a representation (HDR_REP) of the high dynamic range input image defined according to a predefined accuracy, to a low dynamic range image (Im_LDR) by a human-determined color mapping algorithm. The image encoder is configured to output data specifying the color mapping (Fi(MP_DH)). Further, the image encoder includes an automatic grading unit configured to derive a second low dynamic range image (GT_IDR) by applying an automatic color mapping algorithm to one of the high dynamic range input image (M_HDR) and the low dynamic range image (Im_LDR).
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: July 4, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Mark Jozef Willem Mertens
  • Patent number: 9684840
    Abstract: A detection system comprises a light source configured to illuminate an object, an image sensor configured to receive light reflected from the object, and a processor. The image sensor generates a first picture when the light source is turned on. The image sensor generates a second picture when the light source is turned off. The processor is configured to subtract the second picture from the first picture for determining an object image produced by the object.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: June 20, 2017
    Assignee: PIXART IMAGING INC.
    Inventors: Yu Hao Huang, En Feng Hsu, Ming Tsan Kao
  • Patent number: 9600904
    Abstract: A method for operating a list in a mobile terminal is disclosed. An example method includes receiving a scene to display corresponding to a user performing an operation on the mobile terminal, capturing an image of the current environment from a camera of the mobile terminal while the user is performing the operation, extracting information from the captured image, processing the extracted information, rendering a display screen according to the received scene and according to the extracted information, and displaying the rendered display screen during the operation.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 21, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Alexander Gregory Chu, Joseph Luke Marshall, Andrew Joseph Dickerson
  • Patent number: 9584733
    Abstract: In personal electronic devices including digital imaging capability, methods, devices and computer readable media are described for determining when image capture operations may benefit from using high dynamic range imaging (HDRI) operations. In general, techniques are disclosed for analyzing an image's luminosity and/or color/tonal histograms to automatically determine when HDRI operations can benefit scene capture. If the determination that HDRI operations can improve scene capture, the user is so notified.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: February 28, 2017
    Assignee: Apple Inc.
    Inventor: Frank Doepke
  • Patent number: 9558395
    Abstract: There is provided an image correction device including a flash band detection unit configured to detect a flash band, the flash band being a step occurred between levels for respective lines in a frame by a flash of light, the step being occurred by a difference in exposure time between the lines of a video signal output for each frame from pixels included in a rolling shutter image sensor, a shutter operation determination unit configured to determine whether or not shutter operation has been performed in an imaging device including the image sensor, and a flash band correction unit configured to, when the shutter operation determination unit determines that shutter operation has been performed and the flash band detection unit has detected the flash band, output a video signal of a previous frame output from the image sensor earlier than a frame containing the detected flash band.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: January 31, 2017
    Assignee: SONY CORPORATION
    Inventor: Masato Fukuyama
  • Patent number: 9509918
    Abstract: A method and a device for obtaining a high dynamic range image are provided. The method includes: obtaining a pixel value of each pixel in two images of a same scene; determining a brightness value of each pixel in the two images; determining an objective brightness value of each pixel in a combined image combining the two images; determining a color value of each pixel in the two images; determining a color value of each pixel in the combined image; correcting the color value of each pixel in the combined image so as to obtain a corrected color value of each pixel in the combined image; determining a pixel value of each pixel in the combined image; and obtaining a high dynamic range image.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 29, 2016
    Assignee: BYD Company Limited
    Inventors: Huaren Liu, Shuijiang Mao, Jingjun Fu, Wei Feng
  • Patent number: 9479705
    Abstract: An exposure value adjustment apparatus, method, and non-transitory tangible machine-readable medium thereof are provided. The exposure value adjustment apparatus includes a camera module and a processor. The camera module captures a reference image by a base exposure value. The processor generates a histogram of the reference image, divides the histogram into a low partial histogram, a middle partial histogram, and a high partial histogram by a first threshold and a second threshold, decides a high exposure value according to the low partial histogram and the middle partial histogram, decides a low exposure value according to the high partial histogram and the middle partial histogram, and decides a middle exposure value according to the high exposure value and the low exposure value. The low exposure value is lower than the high exposure value, and the middle exposure value is between the high exposure value and the low exposure value.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: October 25, 2016
    Assignee: HTC CORPORATION
    Inventors: Chia Yen Michael Lin, Jing-Lung Wu, Hsin-Ti Chueh, Yu-Cheng Hsu, Hung-Chih Yang, Li-Chun Hsu
  • Patent number: 9420197
    Abstract: An imaging device includes a flash ratio calculator calculating a flash ratio based on a flash image and a non-flash image, a main subject flash ratio selector selecting a flash ratio of an area of a main subject, a preliminary white balance coefficient determination unit determining a preliminary white balance coefficient used in adjusting a white balance, a flash ratio range calculator calculating an upper limit value and a lower limit value of a range of the flash ratio based on the flash ratio of the main subject and the preliminary white balance coefficient, a flash ratio processor altering the flash ratio so that the flash ratio is in the calculated range, and a white balance coefficient calculator calculating a white balance coefficient based on the altered flash ratio.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: August 16, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Shuichi Goto
  • Patent number: 9400937
    Abstract: In an example embodiment, a method, apparatus and computer program product are provided. The method includes facilitating capture of at least one image of a scene including a foreground object by at least one rolling shutter sensor. The at least one image includes a pattern in an image region of the foreground object comprising a series of alternate dark and bright pixel regions. The at least one image is captured by setting exposure time of the sensor as equal or less than a read-out time of a set of pixel rows of a plurality of pixel rows, and by facilitating a repeating sequence of ON and OFF of flash such that flash is ON while capturing the set of pixel rows, and OFF while capturing subsequent set of pixel rows. The method includes determining a contour of the foreground object in the at least one image based on the pattern.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 26, 2016
    Assignee: Nokia Technologies Oy
    Inventors: Pranav Mishra, Rajeswari Kannan, Ravi Shenoy, Ramesh Raskar
  • Patent number: 9369620
    Abstract: The invention discloses a camera with a built-in polaroid switching mechanism, including a polaroid switching mechanism and a camera body, wherein a front end of the camera body is provided with a front cover, the front cover is provided with a light aperture, the polaroid switching mechanism is located behind the front cover and inside the camera body, behind the polaroid switching mechanism is provided a CCD image sensor, which directly faces the light aperture and fixes onto a CCD circuit board, a rear end of the CCD image sensor is bonded with a heat sink, and the camera body is further internally equipped with a main circuit board electrically connected with the CCD circuit board. In the invention, the polaroid switching mechanism is integrated inside the camera, thereby facilitating to reduce the volume of the switching mechanism and the camera.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: June 14, 2016
    Assignee: SHANGHAI RUISHI MACHINE VISION TECHNOLOGY CO., LTD.
    Inventors: Xiudong Shi, Yinghai Yu
  • Patent number: 9338365
    Abstract: An image pickup apparatus arranged so that an optical image of an object obtained by emitting a flash is converted into an electric signal to obtain a first image regarding photographing of the object, the same optical image of the object is converted into an electric signal to obtain a second image, a distance from the object is measured for each image area of the first image on the basis of the second image, and the first image is corrected on the basis of the distance from the object measured for each image area and light distribution characteristic data of a flash stored beforehand corresponding to the distance of the object.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: May 10, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Ohwa, Yoshihiro Homma
  • Patent number: 9332162
    Abstract: A video sequence control system comprising: a video frame sequence component for providing video frames for display by a projector, the video frames having a sequence of at least one crosstalk reduction frame followed an image frames; and a synchronization control component, the synchronization control component communicatively coupled to an image capture device the synchronization control component providing a timing signal to synchronize image capture with the occurrence of the at least one crosstalk reduction frame in the video frame sequence.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: May 3, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Kar-Han Tan, Irvin E Sobel, Alan A McReynolds
  • Patent number: 9313375
    Abstract: Techniques are described for balancing an exposure of a photograph using a software-implemented Graduated Neutral Density (GND) filter. Portions of a visual representation of a scene may be defined. Camera settings, such as aperture and/or shutter speed, may be set based on characteristics of the software-implemented GND filter and the portions of the visual representation of the scene.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: April 12, 2016
    Assignee: Amazon Technologies, Inc.
    Inventor: Bodhisatwa Chakravarty
  • Patent number: 9307233
    Abstract: A method characterizes manufacturing imperfections in a camera and variations in its operating environment to allow images captured by the camera to be compensated for these defects. The method includes: (a) illuminating a field of view of the optical elements under a controlled condition; (b) exposing multiple images onto the image sensor under the controlled condition; (c) extracting from the multiple images parameter values for pixels of the image sensor; and (d) compensating images taken subsequently in the camera using the parameter values. The controlled condition includes an external light source for illumination, and the image sensor is sensitive to color components.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: April 5, 2016
    Assignee: Capso Vision, Inc.
    Inventors: Kang-Huai Wang, Gordon Wilson
  • Patent number: 9251574
    Abstract: Image compensation value computation techniques are described. In one or more implementations, an image key value is calculated, by a computing device, for image data based on values of pixels of the image data. A tuning value is computed by the computing device using the image key value. The tuning value is configured to adjust how the image data is to be measured to compute an image compensation value. The image compensation value is then computed by the computing device such that a statistic computed in accordance with the tuning value approaches a target value. The image compensation value is applied by the computing device to adjust the image data.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 2, 2016
    Assignee: Adobe Systems Incorporated
    Inventors: Mark C. Hamburg, Eric Chan
  • Patent number: 9240428
    Abstract: Embodiments of an image sensor are provided. The image sensor includes a sensing layer, a filter unit and a microlens. The filter unit is disposed on the sensing layer, and the microlens is disposed on the filter unit. The filter unit has a gradient refractive index. Therefore, the sensitivity of the image sensor is improved.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 19, 2016
    Assignee: VisEra Technologies Company Limited
    Inventors: Zong-Ru Tu, Yu-Kun Hsiao
  • Patent number: 9225876
    Abstract: Systems and method for improving the quality of document images are provided. One method includes identifying a plurality of image fragments within a previously received document image that includes text. The method further includes separating the plurality of image fragments into a plurality of classes. Each class includes a subset of the plurality of image fragments that are substantially similar to one another. The method further includes, for each of the plurality of classes: (1) processing a class of image fragments to generate a combined and substantially enlarged image fragment for the class; and (2) filtering the combined and substantially enlarged image fragment to generate a filtered image fragment for the class. The method further includes generating an improved document image by replacing or modifying the image fragments within the document image based on the filtered image fragments.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 29, 2015
    Assignee: ABBYY Development LLC
    Inventors: Mikhail Kostyukov, Ivan Zagaynov
  • Patent number: 9215433
    Abstract: A system, method and computer program product for generating an image set for a photographic scene. The method comprises sampling evaluation images comprising an ambient evaluation image and a strobe evaluation image, enumerating exposure requirements for each image comprising the image set, selecting exposure coordinates for each image comprising the image set based on a corresponding exposure requirement and a corresponding evaluation image, generating camera subsystem exposure parameters for each image comprising the image set based on corresponding selected exposure coordinates, storing camera subsystem exposure parameters for each image comprising the image set, sampling each image comprising the image set based on corresponding camera subsystem exposure parameters, and storing each sampled image comprising the image set. Techniques disclosed herein advantageously reduce inter-frame time for images sampled sequentially, and in particular image sets that include both ambient and strobe images.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: December 15, 2015
    Assignee: Duelight LLC
    Inventors: William Guie Rivard, Adam Barry Feder, Brian J. Kindle
  • Patent number: 9146304
    Abstract: An electronic device may be provided with a proximity sensor. The proximity sensor may include a light source such as a light-emitting diode and a light detector such as a photodiode. The light-emitting diode may be driven with an alternating current drive signal so that alternating current light is produced. The alternating current light may reflect off of an external object and may be received by the photodiode. The photodiode may receive a direct current light signal associated with the presence of ambient light. The efficiency of the photodiode may be affected by the level of ambient light and the efficiency of the light-emitting diode may be affected by the temperature of the light-emitting diode. Ambient light correction circuitry and temperature correction circuitry may be used to ensure that proximity sensor readings are not adversely affected by changes in operating temperature and ambient lighting conditions.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: September 29, 2015
    Assignee: Apple Inc.
    Inventors: Brian R. Land, Dong Zheng
  • Patent number: 9148637
    Abstract: Methods and systems for face detection and tracking using an image-based capture device are disclosed herein. The method includes generating a depth image of a scene, generating a mask image from the depth image, and detecting a position of a face of a user in the scene using the mask image. The method also includes determining an intensity of the face using a first color channel of the mask image and adjusting a gain level of a first color channel of the image-based capture device directed at the scene to achieve a target intensity of the face.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: September 29, 2015
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Sean Eron Anderson, Christian F. Huitema