Color Balance (e.g., White Balance) Patents (Class 348/223.1)
  • Patent number: 11330148
    Abstract: Provided is an image processing device which has: an image input part configured to input a multi-spectral image which includes N (N is an integer of 4 or more) channels corresponding to N bands; a reference vector setting part configured to cause a user to set, as three reference vectors, three types of N-dimensional vectors having sensitivities of the respective N bands as elements; and a conversion part configured to convert the multi-spectral image into a 3-channel image including three channels by decomposing a spectral distribution of each pixel of the multi-spectral image on the basis of the three reference vectors.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: May 10, 2022
    Assignee: OMRON Corporation
    Inventor: Yutaka Kato
  • Patent number: 11330685
    Abstract: The present invention discloses a method, device, terminal setting and readable storage medium for correcting mixed color. The method first acquiring color coordinates of standard mixed color and color coordinates of mixed color to be corrected, when the first difference coordinates of the two color coordinates exceed preset threshold, calculating a ratio of Y coordinate and X coordinate of the first difference coordinates to obtain first ratio, calculating coordinates difference between the first color coordinates and color coordinates of each monochromatic light to obtain difference coordinates to be processed, calculating ratios of Y coordinate and X coordinate of each difference coordinates to be processed to obtain ratios to be processed, selecting monochromatic light corresponding to a ratio to be processed with the smallest difference from the first ratio as monochromatic light to be adjusted, then realizing color correction by adjusting color channel value of the monochromatic light to be adjusted.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 10, 2022
    Assignee: GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO., LTD.
    Inventors: Zhiman Chen, Rongfeng Huang, Guohai Wang
  • Patent number: 11323676
    Abstract: One limitation of traditional imaging systems is that they are only programmed to correct for a single color of illuminant in a scene. In multi-illuminant scenes, the detected illuminant color may correspond to some mixture of scene illuminants. This may lead to incomplete color correction, wherein, e.g., the dominant illuminant is corrected for but the color cast caused by secondary illuminants is still visible, or an at least partially visible color cast remains from multiple of the scene illuminants. Thus, the techniques disclosed herein comprise: obtaining an image of a scene; generating an illumination map for the obtained image; dividing the values in the illumination map to determine a number of estimated illuminant regions, wherein each region corresponds to at least one estimated illuminant present in the captured scene; estimating a white point for each region; and applying white balancing operations, based on the estimated white points for each region.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: May 3, 2022
    Assignee: Apple Inc.
    Inventors: Ilya Romanenko, Roberto Montagna
  • Patent number: 11323666
    Abstract: An imaging device and a method for capturing images under water and dynamically adjusting gain values for use in color correction. Minimum and maximum gain values as a function of depth are provided and a value of a parameter indicative of a point in a range between minimum and maximum gain values for a water depth is dynamically adjusted based on white balance analysis of the last captured image. A current gain value for a color of the color filter array is then determined based on the stored minimum and maximum gain values, the determined water depth, and the current parameter value and applied in the image/video pipeline to color correct the next image.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: May 3, 2022
    Assignee: Paralenz Group ApS
    Inventor: Nikolaj Bech Andersen
  • Patent number: 11323631
    Abstract: An image capturing device includes: an illuminator configured to generate illumination light having wavelength bands and an illumination characteristic; an imager configured to generate an image signal by capturing light from a subject; and a processor configured to: control the illumination characteristic; set a piece of statistical data used for estimating a spectral characteristic of the subject included in the image signal; estimate the spectral characteristic of the subject included in the image signal based on the set piece of statistical data; define an illumination characteristic of illumination light in accordance with the estimated spectral characteristic of the subject; and determine whether or not the set piece of statistical data is an adequate piece of statistical data based on whether or not an image signal generated by the imager under the illumination light having the defined illumination characteristic satisfies a criterion for achromatic color.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 3, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Masanori Mitsui, Takuji Horie, Joji Sakamoto
  • Patent number: 11308341
    Abstract: In a verification method for verifying a verification target camera, an original image in which optical characteristics of an original image camera different from the verification target camera are corrected to a captured image of a real scene captured by the original image camera is prepared, a verification image in which an influence of optical characteristics of the verification target camera is applied to the original image is prepared, image recognition of the verification image is performed by executing a verification target algorithm applied for image recognition of an image captured by the verification target camera, and an image recognition result of the verification image is evaluated.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 19, 2022
    Assignee: DENSO CORPORATION
    Inventor: Toshiyuki Tsuchimoto
  • Patent number: 11302283
    Abstract: The present disclosure provides a screen color conversion method, a storage medium, and an electronic device. The method can include when an adjustment operation for a correlated color temperature of a color in a screen is triggered, determining target Red-Green-Blue (RGB) coefficients according to a relation curve between the RGB coefficients and a correlated color temperature, and a target correlated color temperature corresponding to the adjustment operation. The relation curve reflects a relation between a tristimulus value of a white color displayable for the screen and a correlated color temperature determined based on a black body radiation locus, and a target conversion matrix between the tristimulus value and the RGB coefficients. The method can further include converting the color in the screen to a target color corresponding to the target correlated color temperature according to the target RGB coefficient.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: April 12, 2022
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Xiaohuang Su, Dong Zhai
  • Patent number: 11290652
    Abstract: To make a difference between respective accumulation conditions of first and second regions of a live view image and then to check the live view image for changes in an image corresponding to the changes in the accumulation conditions of the respective regions. An electronic apparatus includes an image-capture unit and a system control unit. The image-capture unit includes an image sensor and captures an image of first and second regions. The system control unit causes a display unit to display a live view image corresponding to the image of the first and second regions captured by the image-capture unit. The system control unit also makes a difference between respective accumulation conditions of the first and second regions of the live view image.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: March 29, 2022
    Assignee: NIKON CORPORATION
    Inventor: Takeshi Nishi
  • Patent number: 11281078
    Abstract: There are provided a plurality of terminals disposed in a circumferential direction of a second mount of an image capturing apparatus. The plurality of terminals correspond to a plurality of terminals disposed in a circumferential direction of a first mount of an accessory. The plurality of terminals of the image capturing apparatus include a first terminal used to supply power for driving an internal component of the accessory, and a second terminal used to supply power for controlling communication with the accessory. The first and second terminals are disposed further in a mount direction of the accessory than the other terminals of the image capturing apparatus on a predetermined stage of the terminal holder. An inter-terminal pitch between the first and second terminals is wider than at least one pitch among inter-terminal pitches of the other terminals.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: March 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jun Kamiya, Yasuyuki Watazawa, Naoto Fujihashi
  • Patent number: 11284013
    Abstract: A terminal device calibrates a to-be-detected image based on a light source color temperature and scene brightness that are obtained during imaging of the to-be-detected image and based on a preset reference color card image set to restore a real color of the to-be-detected image to a greatest extent.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: March 22, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Henghui Lu, Hao Liu, Wenmei Gao
  • Patent number: 11272095
    Abstract: An image processing apparatus includes an image acquire unit that acquires an image in which at least one element in a first color space has linear characteristics; and a processor. The processor is configured to adjust a white balance of the image which is acquired by the image acquire unit; control the adjustment of the white balance, on the basis of a specific color serving as a reference; convert each of a plurality of portions in the image in which the white balance has been controlled by the adjustment of the white balance, into one element in a second color space; and apply predetermined image processing to the acquired image in which the white balance has not been adjusted, by using the converted information.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: March 8, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventor: Takeshi Tsukagoshi
  • Patent number: 11265518
    Abstract: A method apparatus are directed to identify items disposed on the bottom shelf of a shopping cart bottom of basket (BoB). Certain aspects envision a distance measurement sensor and computing system connected to the shopping cart. A first set of distance measurements of the bottom shelf when empty is obtained via the distance measurement sensor. Next, at a checkout stand, a second set of distance measurements of the shelf are taken, which can be used to compare with the first set of distance measurements to identify if there is an object on the BoB. An alert can be provided to a checkout attendant if there is an object on the BoB.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: March 1, 2022
    Assignee: BOB Profit Partners LLC
    Inventors: Dale Lee Yones, Scott David Dalgleish, Craig W. Moyer
  • Patent number: 11265524
    Abstract: An apparatus configured to correct a captured image using a gloss component based on a virtual light source sets a light-source color of the virtual light source. The apparatus generates the gloss component on a subject in the captured image using the light-source color corrected according to a color tone of the captured image. The apparatus corrects the captured image by adding the generated gloss component to the captured image.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: March 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yuichi Nakada
  • Patent number: 11244977
    Abstract: An imaging sensor comprises: an array of light-detecting elements, wherein each light-detecting element in the array of light-detecting elements is arranged in the imaging sensor so as to detect a respective wavelength interval, wherein the respective wavelength interval differs for different light-detecting elements; a pattern arranged on the array of light-detecting elements, wherein the pattern defines a plurality of transparent areas, each transparent area being associated with a corresponding light-detecting element in the array of light-detecting elements, wherein a size of a transparent area among the plurality of transparent areas is dependent of the corresponding light-detecting element with which the transparent area is associated.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: February 8, 2022
    Assignee: IMEC VZW
    Inventors: Nicolaas Tack, Bert Geelen, Bart Vereecke
  • Patent number: 11226232
    Abstract: A Multichromatic Calibration (MC) method of at least a spectral sensor which is one of a list comprising at least a spectrometer, a multispectral sensor, a hyperspectral sensor, a spectral camera, a color camera. The method comprises a. generating a plurality of different multichromatic spectra, wherein i. a spectrum from the plurality of different multichromatic spectra contains light intensity measurable by the at least one spectral sensor and by a reference spectral device, and ii. a spectrum from the plurality of different multichromatic spectra contains light centered around at least two different wavelengths and is configured to be integrated during an exposure time of a single measurement from any of the at least one spectral sensor or the reference spectral device; b.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: January 18, 2022
    Assignee: ECOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE (EPFL)
    Inventors: Dragos Constantin, Simon De Visscher
  • Patent number: 11216981
    Abstract: In one aspect, a system for calibrating image data during the performance of an agricultural operation may include an imaging device configured to capture image data associated with a portion of a field within a field of view of the imaging device. Additionally, the system may include a color indicator positioned within the field of view of the imaging device. Moreover, the system may include a controller configured to receive the image data from the imaging device and determine an apparent color value of the color indicator based on the received image data. Furthermore, the controller may be configured to adjust at least one of an operating parameter of the imaging device or a variable associated with processing the received image data based on the determined apparent color value.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 4, 2022
    Assignee: CNH Industrial America LLC
    Inventors: Luca Ferrari, Trevor Stanhope
  • Patent number: 11212500
    Abstract: An image capture apparatus includes: an acquisition unit configured to acquire image data of a subject; an identification unit configured to identify a color temperature of light from the subject on the basis of the image data acquired by the acquisition unit; an adjustment unit configured to adjust a white balance of the image data on the basis of the color temperature identified by the identification unit; and a suppression unit configured to suppress a chroma of the image data applied adjustment by the adjustment unit on the basis of the color temperature identified by the identification unit if image data of a specific light-emitting body is included in the image data.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 28, 2021
    Assignee: NIKON CORPORATION
    Inventors: Takatoshi Morikawa, Norimitsu Anada
  • Patent number: 11212456
    Abstract: Image capturing, including: generating a pattern of light projection to be projected during non-video capture segments, wherein the pattern of light projection is not projected during video capture segments; determining timing of the non-video capture segments; projecting the generated pattern of light onto a capture volume during the non-video capture segments for a period less than a length of one non-video capture segment; capturing image data of the projected pattern of light using at least one image sensor; and processing the captured image data to obtain information about objects and people in the capture volume.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: December 28, 2021
    Assignees: SONY GROUP CORPORATION, SONY PICTURES ENTERTAINMENT INC.
    Inventor: Scot Barbour
  • Patent number: 11205369
    Abstract: A display method for generating grayscale mapping information can be applied to a terminal device, and include: determining an Open Pixel Ratio (OPR) corresponding to an image to be displayed; acquiring a preset corresponding relationship between an original grayscale value and a target grayscale value under the OPR; sequentially converting the original grayscale value corresponding to each pixel of the image to be displayed into the corresponding target grayscale value according to the corresponding relationship; and displaying the image to be displayed according to the target grayscale value corresponding to each pixel obtained by the conversion.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: December 21, 2021
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Kai Yang, Dong Zhai
  • Patent number: 11205331
    Abstract: A device and a method for providing an indication to a user regarding events associated with a device. A method includes detecting a plurality of events associated with a device and communicating the detected events to a controller of the device. The method includes generating a command for each of the detected events and communicating the command to a voltage generator of the device. The method includes generating voltage based on the command and applying the generated voltage to one or more electro-chromic layers of a plurality of electro-chromic layers embedded in the device. The method includes glowing a color by the one or more electro-chromic layers on the device by application of the generated voltage.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 21, 2021
    Assignee: CARRIER CORPORATION
    Inventors: Srinivasa Reddy Pilli, Prasad Babu Lakshmipathy, Raghuveer Pallerla
  • Patent number: 11196935
    Abstract: A method and apparatus for accelerating automatic exposure control (AEC) convergence, and a terminal device are disclosed. The method includes: acquiring a first AEC value of a first camera module in an automatic-exposure convergent state under a current scene; sharing the first AEC value under the current scene with a second camera module; operating the second camera module to start converging from the first AEC value in response to turning on the second camera module under the current scene, and acquiring a second AEC value of the second camera module in the automatic-exposure convergent state.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: December 7, 2021
    Assignee: SHENZHEN HEYTAP TECHNOLOGY CORP., LTD.
    Inventor: Quan Yuan
  • Patent number: 11190745
    Abstract: A controlling value is calculated using a first white balance gain and a second white balance gain. Using the calculated controlling value, an image processing parameter is then modulated. Using this modulated image processing parameter, image data processing is performed, and storage, transmission, and the like of the image processing parameter are performed. This can realize advanced image processing reflective of the white balance gain.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: November 30, 2021
    Assignee: SONY CORPORATION
    Inventors: Osamu Izuta, Manli Yuan, Ayumi Tadano
  • Patent number: 11164037
    Abstract: A system and method for resolving an ambiguity between similar objects in an image is disclosed. A three dimensional representation of a room is generated, and objects in the room are identified from an image of the room are identified. A determination is made that at least two objects are visually similar, and a position of the two objects is ambiguous. At least one question based on the determined ambiguity is programmatically generated based on information known about the room, and is phrased such that the ambiguity can be resolved by an answer to the question. Based on the answer received one of the objects is selected. At least one property of the selected object is modified based upon the selection of one of the at least two objects.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 2, 2021
    Assignee: International Business Machines Corporation
    Inventors: Mattias Marder, Yochay Tzur
  • Patent number: 11159775
    Abstract: A processing control unit 50 of an information processing apparatus 14 functions as an acquisition unit that acquires positional information representing an imaging position in which imaging is performed, time range information representing an imaging time range in which the imaging is performed, and color temperature information related to the imaging, from each of a plurality of imaging apparatuses 12. In addition, the processing control unit 50 functions as a derivation unit that derives recommended color temperature information recommended in a case of performing imaging in a specific position and a specific time range from information obtained by performing statistical processing on the acquired positional information, the time range information, and the color temperature information.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: October 26, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Masahiko Sugimoto
  • Patent number: 11153498
    Abstract: An electronic device includes an image sensor including a first pixel subset with a first sensitivity and a second pixel subset having with a second sensitivity, and a processor to process image data generated through the image sensor. The processor obtains image data through each of the first pixel subset and the second pixel subset, select at least one sub-image data based at least on the attribute information of the first sub-image data and the second sub-image data of the image data, and obtain focus information corresponding to the external subject using the selected sub-image data.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 19, 2021
    Inventors: Byeong Chan Park, Min Soo Kim, In Koo Kang, Jong Hoon Won, Kwang Tai Kim, Dong Hyun Yeom, Ki Huk Lee
  • Patent number: 11153547
    Abstract: Disclosed is a method and apparatus of correlated illuminant estimation between different camera modules on a same electronic device. Example embodiments of automatic white balance of the digital image leveraging the illuminant estimation based on the facial color features are illustrated.
    Type: Grant
    Filed: January 17, 2021
    Date of Patent: October 19, 2021
    Assignee: Real Imaging Technology Co. Ltd
    Inventor: Xiaoning Huai
  • Patent number: 11138761
    Abstract: An image processing apparatus to measure a color of an object based on a measurement target image obtained by imaging the object includes an acquisition unit, a derivation unit, and a calculation unit. The acquisition unit acquires the measurement target image and a reference image different from the measurement target image. The derivation unit derives a reference color based on an imaging parameter used in imaging of the measurement target image, an imaging parameter used in imaging of the reference image, and a pixel value of at least one pixel in the reference image. The calculation unit calculates, with reference to the reference color, a color evaluation value of at least one pixel corresponding to the object in the measurement target image.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: October 5, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshitaka Sasaki
  • Patent number: 11138699
    Abstract: The present disclosure relates to systems, methods, and non-transitory computer readable media that utilize context-aware sensors and multi-dimensional gesture inputs across a digital image to generate enhanced digital images. In particular, the disclosed systems can provide a dynamic sensor over a digital image within a digital enhancement user interface (e.g., a user interface without visual elements for modifying parameter values). In response to selection of a sensor location, the disclosed systems can determine one or more digital image features at the sensor location. Based on these features, the disclosed systems can select and map parameters to movement directions. Moreover, the disclosed systems can identify a user input gesture comprising movements in one or more directions across the digital image. Based on the movements and the one or more features at the sensor location, the disclosed systems can modify parameter values and generate an enhanced digital image.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: October 5, 2021
    Assignee: ADOBE INC.
    Inventors: Gregg Wilensky, Mark Nichoson, Edward Wright
  • Patent number: 11100871
    Abstract: The display device also includes a threshold voltage sensor configured to sense a threshold voltage of a white light emitting element included in the white sub-pixel, a data compensation unit configured to correct data signal depending on a variation in the threshold voltage and generate compensated data signal and a data driver configured to generate a data voltage according to the compensated data signal and output the data voltage to the display panel. The data compensation unit calculates an initial white gain depending on the variation in the threshold voltage. Therefore, the lifetime of the display device can be improved.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: August 24, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Inchul Woo, SunYoon Kim
  • Patent number: 11076083
    Abstract: Multi-color flash with image post-processing that uses a camera device with a multi-color flash and implements post-processing to generate images is described. In one aspect, the multi-color flash with image post-processing may be implemented by a controller configured to control a camera and flashes of at least two different colors. The controller may be configured to cause the camera to acquire a first image of a scene while the scene is being illuminated with the first flash but not the second flash, then cause the camera to acquire a second image of the scene while the scene is being illuminated with the second flash but not the first flash, and generate a final image of the scene in post-processing based on a combination of the first image and the second image.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: July 27, 2021
    Assignee: Lumileds LLC
    Inventors: Charles Schrama, Nicola Bettina Pfeffer, Arjen van der Sijde
  • Patent number: 11070722
    Abstract: An image capturing device includes: an illuminator configured to generate illumination light composed of components at a plurality of wavelength bands, each of the components having a characteristic in accordance with a corresponding one of settings; an imager configured to generate an image signal by capturing light from a subject; and a processor. The processor is configured to: set an acquisition condition for acquiring spectral information of the subject, the acquisition condition including a condition related to an operation of each of the illuminator and the imager; analyze the image signal generated by the imager based on the acquisition condition in order to acquire the spectral information of the subject; determine whether or not the acquired spectral information satisfies an end condition for ending acquisition of the spectral information; and change the acquisition condition when the processor determines that the end condition is not satisfied.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: July 20, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Joji Sakamoto, Masanori Mitsui, Takuji Horie
  • Patent number: 11062122
    Abstract: In a case where a plurality of images are input, images in which the same person is included are grouped. In a case where there are images of which the number is equal to or larger than a maximum number of images to be made public for the same person, a total image evaluation value is calculated for the images in which the same person is included. An image with a small total image evaluation value is determined as a private image candidate so that the number thereof is smaller than the maximum number.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 13, 2021
    Assignee: FUJIFILM Corporation
    Inventor: Yukinori Noguchi
  • Patent number: 11064174
    Abstract: The present application provides a white balance processing method and apparatus. The method comprises: recognizing a portrait region in an image; calculating a target white balance gain value according to the area occupied by the portrait region in the image; and performing white balance processing on the image according to the target white balance gain value. The present application resolves the problems of poor user experience due to inaccurate image color restoration caused by a small area proportion of a human face region in an image during white balance adjustment according to the white balance gain value determined according to the area occupied by the human face in the case of a long photography distance.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: July 13, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Quan Yuan
  • Patent number: 11062432
    Abstract: The present principles relates to a method and device for reconstructing an High-Dynamic-Range image represented by one reconstructed High-Dynamic-Range luma component (??) and two reconstructed High-Dynamic-Range chroma components (Û?, (I)) from a Standard-Dynamic-Range image represented by a Standard-Dynamic-Range luma component (y?, y?1) and two Standard-Dynamic-Range chroma components (u?, v?). The method is characterized in that the method comprises: inverse-mapping (22) said Standard-Dynamic-Range luma component (y?, y?1) to obtain said reconstructed High-Dynamic-Range luma component (??); and correcting (33) said two Standard-Dynamic-Range chroma components (u?, v?) to obtain said two reconstructed High-Dynamic-Range chroma components (Û?, (I)) according to said Standard-Dynamic-Range luma component (y?, y?1) and said reconstructed High-Dynamic-Range luma component (??).
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: July 13, 2021
    Assignee: INTERDIGITAL VC HOLDINGS, INC.
    Inventors: Yannick Olivier, Edouard Francois, Pierre Andrivon, David Touze
  • Patent number: 11057562
    Abstract: The present invention discloses a multimode CMOS image sensor and a control method thereof. The sensor comprises an independent control area group, a peripheral control circuit, a section mode setting module and a section mode configuration module. The method comprises dividing an independent control area group of the sensor into sections; setting a mode for each of the sections obtained; configuring a control mode of the peripheral control circuit for a corresponding section according to the mode set.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 6, 2021
    Inventors: Guanjia Meng, Huili Gong, Xiaojuan Li, Ruofei Zhong, Jiao Guo, Cankun Yang
  • Patent number: 11051008
    Abstract: An image processing apparatus includes: at least one processor and/or at least one circuit to perform operations of the following units: an acquisition unit configured to acquire luminance information that indicates characteristic value of luminance of inputted image data; and a conversion unit configured to convert colors of the image data into conversion colors which are respectively associated with sub-ranges determined by dividing a luminance range of the image data using thresholds, wherein a first threshold of the thresholds is the characteristic value.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 29, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Ryo Nakagawa, Hirofumi Urabe
  • Patent number: 11025876
    Abstract: Disclosed in various embodiments of the present invention are a method and a device for correcting white balance during image capturing in an electronic device.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 1, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jin Keun Seok
  • Patent number: 11025833
    Abstract: In order to address a conventional problem that video signal processing in consideration of behavior of light in nature has not been performed, a video signal processing apparatus includes: a storage unit in which correspondence information indicating correspondence between optical signal information related to an optical signal in an environment in which an image is acquired and electrical signal information related to an electrical signal in the environment is stored; an input image accepting unit that accepts an input image; an optical signal information acquiring unit that acquires optical signal information corresponding to electrical signal information acquired from the input image, using the correspondence information; a conversion processing unit that performs conversion processing that acquires an output image from the input image, using the optical signal information acquired by the optical signal information acquiring unit; and an output unit that outputs the output image.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: June 1, 2021
    Assignee: I-CUBED RESEARCH CENTER INC.
    Inventor: Tetsujiro Kondo
  • Patent number: 10991080
    Abstract: The present invention provides an image adjustment method and associated image processing circuit for performing the following operations upon each pixel of an image: obtaining R, G, B values and infrared ray (IR) value corresponding to the current pixel; generating multiple initial compensation parameters corresponding to the R, G, B values; generating an over-compensation parameter according to the R, G, B and IR values; comparing the over-compensation parameter with at least one threshold value to generate a compensation adjustment coefficient; and performing IR crosstalk compensation upon the image with the compensation adjustment coefficient.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: April 27, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Zhong-Yi Qiu, Wen-Tsung Huang
  • Patent number: 10986284
    Abstract: The present disclosure is directed to systems and methods of detecting and minimizing the effect of light flickering in a stitched HDR image formed using a plurality of images obtained using image acquisition sensor circuitry. Light flicker mitigation (LFM) circuitry receives a signal containing data representative of a plurality of images. Multi-feature extraction circuits in the LFM circuitry extract data representative of one or more features from some or all of the pixels included in the plurality of images. Light flicker detection and analysis circuits in the LFM circuitry detect flickering pixels in the plurality of images. Exposure index conversion circuits in the LFM circuitry determine one or more output corrections to apply to the plurality of images as the images are stitched to form a single HDR image in which flickering pixels are minimized, mitigated, or eliminated.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 20, 2021
    Assignee: Intel Corporation
    Inventor: Rastislav Lukac
  • Patent number: 10979615
    Abstract: An aerial system, including a processing system, an optical system, an actuation system and a lift mechanism, includes an autonomous photography and/or videography system 70, implemented, at least in part, by the processing system 22, the optical system 26, the actuation system 28 and the lift mechanism 32. The autonomous photograph and/or videography system performs the steps of establishing a desired flight trajectory, detecting a target, controlling the flight of the aerial system as a function of the desired flight trajectory relative to the target using the lift mechanism and controlling the camera to capture pictures and/or video.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: April 13, 2021
    Assignee: Hangzhou Zero Zero Technology Co., Ltd.
    Inventors: Mengqiu Wang, Lixin Liu, Tong Zhang, Jia Lu
  • Patent number: 10963707
    Abstract: An autonomous vehicle is configured to detect an active turn signal indicator on another vehicle. An image-capture device of the autonomous vehicle captures an image of a field of view of the autonomous vehicle. The autonomous vehicle captures the image with a short exposure to emphasize objects having brightness above a threshold. Additionally, a bounding area for a second vehicle located within the image is determined. The autonomous vehicle identifies a group of pixels within the bounding area based on a first color of the group of pixels. The autonomous vehicle also calculates an oscillation of an intensity of the group of pixels. Based on the oscillation of the intensity, the autonomous vehicle determines a likelihood that the second vehicle has a first active turn signal. Additionally, the autonomous vehicle is controlled based at least on the likelihood that the second vehicle has a first active turn signal.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: March 30, 2021
    Assignee: Waymo LLC
    Inventors: Abhijit Ogale, Dave Ferguson
  • Patent number: 10965924
    Abstract: An automatic white balance method and an electronic media device incorporating the method deploy characterized individual human facial color features set of a user or users of the device as reference color surfaces in automatic white balance illuminant estimation and color adjustments, which could improve illuminant estimation accuracy, provide flexible color adjustment options and render the image color to each user's own satisfaction taking into account user preferred rendition as target values through a human-machine interactive interface.
    Type: Grant
    Filed: July 12, 2020
    Date of Patent: March 30, 2021
    Assignee: RealImaging Technology Co., Ltd
    Inventor: Xiaoning Huai
  • Patent number: 10948351
    Abstract: A method and device for determining the color homogeneity of hair is provided. In accordance with various exemplary embodiments, a method comprises providing a digital image in which hair is depicted and which is parameterized in a color space which is defined by employing a parameter set in which one of the parameters is a hue, defining at least one hair analysis region in the digital image, determining a hue distribution in at least one hair analysis region, and determining at least one color homogeneity value on the basis of the determined hue distribution.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: March 16, 2021
    Assignee: Henkel AG & Co. KGaA
    Inventor: Georg Knuebel
  • Patent number: 10951841
    Abstract: The present technology relates to an image processing apparatus, an image processing method, and an electronic apparatus that make it possible to suppress, where a pixel signal of a large pixel and a pixel signal of a small pixel are composed to generate a WD image, degradation of image quality of the WD image. An image processing apparatus includes a first acquisition unit that acquires a first pixel signal output from a first pixel, a second acquisition unit that acquires a second pixel signal output from a second pixel having a size smaller than that of the first pixel, a temperature detection unit that detects temperature, a composition gain determination unit that determines a composition gain corresponding to the detected temperature, and a composition unit that composes the first pixel signal and the second pixel signal multiplied by the composition gain.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: March 16, 2021
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventor: Hiroyuki Mizuno
  • Patent number: 10944926
    Abstract: A solid-state imaging element of the present disclosure includes a pixel array unit in which unit pixels each including a photoelectric conversion unit are arranged two-dimensionally in a matrix, and a floating diffusion is shared between a plurality of the unit pixels, and a drive unit that drives to discard, into the floating diffusion, a part of a charge of a non-read pixel sharing the floating diffusion with a read pixel, during a reset period of the floating diffusion of the read pixel for reading the charge.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: March 9, 2021
    Assignee: SONY CORPORATION
    Inventors: Koushi Uemura, Shingo Sanada, Kiyoshige Tsuji, Hideyuki Hanada
  • Patent number: 10943332
    Abstract: An image adjustment method includes: receiving an image, and retrieving R, G and B values and an infrared ray (IR) value from the image; dividing the image into a plurality of blocks; generating initial compensation coefficients respectively corresponding to the R, G, B and IR values for each block within the blocks; and performing following operations upon each block within the blocks: adjusting initial compensation coefficients of a current block according to a plurality of adjacent blocks next to the current block, in order to generate adjusted compensation coefficients of the current block; and using the adjusted compensation coefficients of the current block to perform IR crosstalk compensation upon the current block.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 9, 2021
    Assignee: Realtek Semiconductor Corp.
    Inventors: Zhong-Yi Qiu, Wen-Tsung Huang
  • Patent number: 10931882
    Abstract: A first imaging unit according to the present embodiment has a plurality of imaging units arranged such that capturing ranges partially overlap with each other and generates a combined image in which images captured by the plurality of imaging units are connected and combined to each other by a combining processing unit. A second imaging unit according to the present embodiment captures a part of a capturing range of the first imaging unit. A control unit according to the present embodiment controls exposure levels of the plurality of imaging units based on at least one of a state of the second imaging unit and information included in an image captured by the second imaging unit.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: February 23, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Aihiko Numata
  • Patent number: 10931845
    Abstract: A reading device including a position reference member having a reference pattern having a line extending along a first direction of the position reference member, the position reference member movable in a second direction orthogonal to the first direction; a reader including a plurality of sensor chips arranged along the first direction, each of the sensor chips having a length defined by a plurality of pixels; and circuitry. The circuitry is configured to detect the reference pattern of the position reference member using the reader; determine coordinates of at least two sensor chips in the second direction, based on the detected reference pattern of the position reference member; and correct a position of a reading target in the second direction based on the coordinates determined for the at least two sensor chips of the reader in the second direction.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: February 23, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Ishii, Satoshi Iwanami, Daisuke Nikaku, Masamoto Nakazawa, Osamu Inage, Shinichiroh Wada, Ryohma Ikemoto
  • Patent number: 10902564
    Abstract: Systems and methods are provided for the denoising of images in the presence of broadband noise based on the detection and/or estimation of in-band noise. According to various example embodiments, an estimate of broadband noise that lies within the imaging band is made by detecting or characterizing the out-of-band noise that lies outside of the imaging band. This estimated in-band noise may be employed for denoise the detected imaging waveform. According to other example embodiments, a reference receive circuit that is sensitive to noise within the imaging band, but is isolated from the imaging energy, may be employed to detect and/or characterize the noise within the imaging band. The estimated reference noise may be employed to denoise the detected in-band imaging waveform.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 26, 2021
    Assignee: SUNNYBROOK RESEARCH INSTITUTE
    Inventors: Brian Courtney, Naimul Mefraz Khan, Natasha Alves-Kotzev