Intensity, Brightness, Contrast, Or Shading Correction Patents (Class 382/274)
  • Patent number: 11182884
    Abstract: The various embodiments of the present disclosure are directed towards methods for tone mapping High-Dynamic-Range (HDR) image data, as well as controlling the brightness of the image encoded by HDR the image data and/or the tone-mapped image data. HDR image is captured. A tone mapping function for the HDR image data is generated. To generate the tone mapping function, control points are dynamically determined based on an analysis of the HDR image data. The tone mapping function is fit to the control points. The tone mapping function is a non-linear function, and is described by a curve in a plane. The shape of the curve is constrained by a line generated from a portion of the control points. The tone mapping function is applied to the HDR image data. A color-compression is applied to the tone mapped image data to generate Standard Dynamic Range or Low Dynamic Range image data.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: November 23, 2021
    Assignee: NVIDIA Corporation
    Inventors: Yining Deng, Eric Dujardin, Hamidreza Mirzaei Domabi, Sung Hyun Hwang
  • Patent number: 11151704
    Abstract: Methods and apparatus for the generation of interpolated frames of video data. In one embodiment, the interpolated frames of video data are generated by obtaining two or more frames of video data from a video sequence; determining frame errors for the obtained two or more frames from the video sequence, determining whether the frame errors exceed a threshold value; performing a multi-pass operation; performing a single-pass operation; performing frame blending; performing edge correction; and generating the interpolated frame of image data.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: October 19, 2021
    Assignee: GoPro, Inc.
    Inventors: Aaron Staranowicz, Ryan Lustig, Desmond Chik
  • Patent number: 11145039
    Abstract: The present disclosure provides a dynamic tone mapping method, a mobile terminal, and a computer readable storage medium. The method includes: acquiring maximum brightness information and average brightness information of a frame to be displayed on the display terminal; inquiring a tone mapping data group respectively corresponding to the maximum brightness information and the average brightness information in a preset tone mapping look-up table; and calling the tone mapping data group and transforming a tone mapping on the frame to be displayed on the display terminal. The present disclosure can change the tone mapping data group for transforming the tone mapping in real time according to the maximum brightness information and the average brightness information of the frame monitored in real time, to reasonably utilize the hardware dynamic range and present a better HDR effect.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: October 12, 2021
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventor: Zhe Huang
  • Patent number: 11146738
    Abstract: An image processing apparatus divides a first image into a plurality of areas based on obtained image data of the first image and sets relationship information between input brightness values with output brightness values for each of the plurality of areas, and converts, based on the relationship information, a brightness value of pixels included in the first image into a brightness value of pixels of a second image whose brightness range is narrower than that of the first image. In the conversion, the apparatus sets, for at least some pixels of the first image, a size of a window for specifying pixels within a predetermined area including the pixels based on environment information in which the second image is observed, and calculates a brightness value in the second image for each of the at least some pixels based on the window.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: October 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidetsugu Kagawa, Shuhei Ogawa, Tetsuya Suwa, Maya Yazawa
  • Patent number: 11144553
    Abstract: In one general embodiment, a computer-implemented method is provided. The computer-implemented method includes receiving data comprising at least one data stream. Each data stream of the at least one data stream includes a plurality of points. The computer-implemented method also includes producing a result by remapping the at least one data stream in a point-by-point manner, and outputting the result.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 12, 2021
    Assignee: International Business Machines Corporation
    Inventors: David J. Berg, Andrew S. Cassidy, Michael V. DeBole, Bryan L. Jackson
  • Patent number: 11138701
    Abstract: An image processing method includes acquiring an image in a chrominance-luminance separation color mode; performing scene recognition of the image to determine a scene of the image; traversing luminance components of respective pixel points in the image, and generating a luminance distribution of the image according to a traversing result of the luminance components; generating a luminance mapping relation based on a standard luminance distribution corresponding to the scene of the image and the luminance distribution of the image; and adjusting the luminance components of the respective pixel points in the image according to the luminance mapping relation to generate a first processed image.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: October 5, 2021
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Huichao Wang
  • Patent number: 11128782
    Abstract: A method for detecting background color of a scanned document uses dynamic weights to adjust components of the L*a*b* color space. In accordance with one aspect of the disclosure, the L*a*b* values belonging to pixels within a block are applied to a series of thresholds. In response to the L*a*b* values meeting the thresholds, a given color pixel within the block is reclassified as being monochromatic. The weight values are dynamically updated based on at least one of the L*a*b* values of the given pixel. The thresholding is repeated for remaining pixels in the document. Using the classified pixels, an output document is generated where the background pixels are monochromatic. The output document is transmitted to a display device in communication with the server computer.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: September 21, 2021
    Assignee: Xerox Corporation
    Inventors: Sainarayanan Gopalakrishnan, Vignesh Doss, Rajasekar Kanagasabai
  • Patent number: 11120289
    Abstract: Systems, apparatuses, and methods for performing parallel histogram calculation with application to palette table derivation are disclosed. An encoder calculates a first histogram for a first portion of pixel component value bits of a block of pixels. Then, the encoder selects a first number of the highest pixel count bins from the first histogram. Also, the encoder calculates a second histogram for a second portion of pixel component value bits of the block. The encoder selects a second number of the highest pixel count bins from the second histogram. A third histogram is calculated from the concatenation of bits assigned to the first and second number of bins, and the highest pixel count bins are selected from the third histogram. A palette table is derived based on these highest pixel count bins selected from the third histogram, and the block of pixels is encoded using the palette table.
    Type: Grant
    Filed: September 30, 2019
    Date of Patent: September 14, 2021
    Assignee: ATI Technologies ULC
    Inventors: Feng Pan, Wei Gao, Yang Liu, Crystal Yeong-Pian Sau, Haibo Liu, Edward A. Harold, Ying Luo, Ihab Amer, Gabor Sines
  • Patent number: 11087461
    Abstract: The present disclosure relates to an image processing device, and an image processing method that enable display of an endoscopic image in an easy-to-view manner, and a medical imaging system. The image imaged by an endoscope device is smoothed by LPF and lightness I, chromaticity r, g, and brightness Y are obtained from a smoothed image. A histogram is obtained in units of blocks using the brightness Y, and a frequency in a direction being an upper order is obtained as a gradient bias feature amount Bb. Furthermore, the lightness and the chromaticity are also obtained as feature amounts Ib, rb and gb of lightness and chromaticity in units of blocks.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: August 10, 2021
    Assignee: SONY CORPORATION
    Inventor: Hiroshi Ichiki
  • Patent number: 11088191
    Abstract: A photoelectric conversion device has an isolation structure. First and second isolation portions are provided between first and second photoelectric conversion elements. The first isolation portion extends from a first plane of a semiconductor layer to a position corresponding to at least a quarter of a length from the first plane to a second plane of the semiconductor layer. The second isolation portion extends from the second plane of the semiconductor layer to a position corresponding to at least a quarter of the length from the first plane to the second plane.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: August 10, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshiyuki Ogawa
  • Patent number: 11072332
    Abstract: A method for a pilot vehicle for influencing a passing maneuver of at least one second vehicle approaching the pilot vehicle, including the steps: detecting surroundings of the pilot vehicle; identifying a passing intention of the at least one second vehicle; detecting at least one third vehicle on a passing trajectory of the at least one second vehicle; ascertaining and selecting at least one passing maneuver of the at least one second vehicle as a function of the at least one detected third vehicle. The method provides for the emission of at least one signal for controlling the at least one selected passing maneuver. Alternatively provided is a method for a second vehicle for influencing a planned passing maneuver of the second vehicle or a method for a third vehicle for influencing a planned passing maneuver of a second vehicle.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: July 27, 2021
    Assignee: Robert Bosch GmbH
    Inventor: Nikolaos Gortsas
  • Patent number: 11062527
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed to enable medical image visualization and interaction in a virtual environment. An example apparatus includes at least one processor and at least one memory including instructions. The instructions, when executed, cause the at least one processor to at least: generate a virtual environment for display of image content via a virtual reality display device, the image content to include a two-dimensional image overlaid on a three-dimensional volume; enable interaction with the image content in the virtual environment via an avatar, movement of the avatar to be correlated with an external input; adjust the image content in the virtual environment based on the interaction; and generate an output of image content from the virtual environment.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: July 13, 2021
    Assignee: General Electric Company
    Inventors: Nicolas Coustaud, Adeline Digard, Yannick LeBerre, Ludovic Avot, Jerome Knoplioch
  • Patent number: 11055831
    Abstract: A system and method for filling light for video images are provided. The method may include: obtaining, by at least one video processing device, a first image including a plurality of reference pixels and is associated with at least one brightness direction; for each of the plurality of reference pixels, obtaining, by the at least one video processing device, a reference brightness value; identifying, by the at least one video processing device, a target brightness direction from the at least one brightness direction; for each of the plurality of reference pixels, determining a brightness enhancement multiplier for the reference pixel based on the plurality of reference brightness values and locations of the plurality of reference pixels along the target brightness direction of the first image; and modifying, by the at least one video processing device, brightness of the first image at least based on the brightness enhancement multipliers.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: July 6, 2021
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Yong Qian, Junjun Yu, Wei Fang
  • Patent number: 11057547
    Abstract: To enable a receiving side to appropriately perform processing of obtaining display image data from transmission video data having a predetermined photoelectric conversion characteristic. Input video data is processing and transmission video data having a predetermined photoelectric conversion characteristic is obtained. Encoding processing is applied to the transmission video data and a video stream is obtained. A container of a predetermined format, including the video stream, is transmitted. Information indicating a photoelectric conversion of the input video data is inserted into the video stream and/or the container.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: July 6, 2021
    Assignee: SONY CORPORATION
    Inventor: Ikuo Tsukagoshi
  • Patent number: 11054546
    Abstract: A system and method for measuring three-dimensional (3D) coordinates is provided. The method includes rotating a 3D scanner about a first axis, the 3D scanner having a light source, a light receiver and a color camera. A light beams are emitted from the light source and reflected light beams are received with the light receiver. A processor determines 3D coordinates of points on the object based on the emitted light beams and the reflected light beams. For each of the points an intensity value is measured based on the reflected light beams. A color image of the object is acquired with the color camera. The intensity values are fused with the color image to generate an enhanced image, the enhanced image includes color data. Color data is merged with the 3D coordinates of the points. The 3D coordinates of the points are stored with the color data.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: July 6, 2021
    Assignee: FARO TECHNOLOGIES, INC.
    Inventors: Martin Ossig, Daniel Flohr
  • Patent number: 11039064
    Abstract: An image processing method and apparatus. The method includes: obtaining a source image; determining spot superposition positions according to pixel brightness values of the source image, where brightness values of pixels of the source image that are located in the spot superposition positions are greater than a preset first threshold; and blurring the source image, and performing, in the spot superposition positions of a blurred image, image fusion on the blurred image and spot images to obtain a processed image, where the spot superposition positions and the spot images fused with in the spot superposition positions are in a one-to-one correspondence.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: June 15, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Simon Ekstrand, Zhiming Fan, Fenglong Jin
  • Patent number: 11025872
    Abstract: A display controller includes: an upper limit luminance value acquisition unit configured to acquire, for pixels of display devices, an upper limit luminance value of an absolute luminance value; a set luminance value setting unit configured to set a set luminance value so that the set luminance value is smaller than a maximum value among the upper limit luminance values; an input luminance value acquisition unit configured to acquire an input luminance value based on input data; an output gradation value generation unit configured to generate an output gradation value based on the input luminance value and the set luminance value; and an output controller configured to output the generated output gradation value, wherein the output gradation value generation unit is further configured to generate the output gradation value so that an output luminance value is equal to or smaller than the set luminance value.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: June 1, 2021
    Assignee: JVCKENWOOD Corporation
    Inventor: Hiroyuki Takada
  • Patent number: 11023771
    Abstract: An information processing apparatus including one or more processors that calculate a degree of polarization on the basis of polarization information in each of multiple directions, which is detected from a target region including a region through which polarized light passes, and extract a region in which an object is present on the basis of the degree of polarization.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: June 1, 2021
    Assignee: SONY CORPORATION
    Inventor: Atsushi Irie
  • Patent number: 11017158
    Abstract: The present disclosure is directed toward systems and methods to quickly and accurately identify boundaries of a displayed document in a live camera image feed, and provide a document boundary indicator within the live camera image feed. For example, systems and methods described herein utilize different display document detection processes in parallel to generate and provide a document boundary indicator that accurately corresponds with a displayed document within a live camera image feed. Thus, a user of the mobile computing device can easily see whether the document identification system has correctly identified the displayed document within the camera viewfinder feed.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: May 25, 2021
    Assignee: DROPBOX, INC.
    Inventors: Nils Peter Welinder, Peter N. Belhumeur, Ying Xiong, Jongmin Baek, Simon Kozlov, Thomas Berg, David J. Kriegman
  • Patent number: 11012608
    Abstract: A processing method, which includes receiving a photographing instruction in order to trigger a camera to photograph a target document, identifying four sides of a document image corresponding to the target document, determining a first included angle corresponding to the document image, where the first included angle represents an inclination degree of the document image relative to the target document, triggering the camera to reset a focus location in a direction of far-end content in the document image, and taking n pictures when the first included angle is greater than a preset threshold, applying geometric correction to the pictures obtained through photographing, outputting one of the pictures to which geometric correction has been applied. Hence, the method significantly increase definition of the far-end content in the document image, and improve correction quality of the document image.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: May 18, 2021
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaojuan Li, Chao Qin, Wenmei Gao
  • Patent number: 11003072
    Abstract: A mask substrate inspection system includes a measurement target module, a camera module, and a control module. The measurement target module includes a mask substrate and a surface light source supplying a light to the mask substrate. The camera module generates image information of the mask substrate using the light from the surface light source. The control module determines whether defects are present in the mask substrate using the image information, without damaging the mask substrate.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: May 11, 2021
    Inventors: Seunghyun Moon, Dongwook Yang, Hyundae Lee
  • Patent number: 10999486
    Abstract: To solve the above problem, a monitoring apparatus according to an embodiment of the present invention comprises: a communication unit for receiving an original image acquired by a camera; a storage unit for storing the original image; a screen unit for displaying the original image and a corrected image obtained by dewarping the original image; and a control unit for controlling operations of the communication unit, the storage unit, and the screen unit, wherein the screen unit displays an icon in a dewarping area of the original image where the corrected image is obtained by dewarping the original image, indicates that the dewarping area is selected when the icon located in the dewarping area is selected, and displays a polygon representing the selected dewarping area.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 4, 2021
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Kyoung Jeon Jeong, Yoo Mi Cha, Sung Pil Chun, Dong Won Kim, Chang Hee Song, Mi Na Choi
  • Patent number: 10991082
    Abstract: A method for determining an optimality coefficient includes receiving an image including a plurality of pixels. A characteristic function is selected for analyzing the received image. Distribution of the plurality of pixels of the received image is analyzed using the selected characteristic function. The analyzed distribution of the plurality of pixels is compared with a normal probability distribution function. An optimality coefficient value for the received image is generated based on the results of the comparison.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: April 27, 2021
    Inventor: Mikhail Dichenko
  • Patent number: 10984550
    Abstract: An image processing device includes a signal processing device, and the signal processing device is configured to perform distance determination processing of determining, based on a depth map concerning an image displayed on a display, an image portion inside a target distance range which is a predetermined distance range in the image, and an image portion outside the target distance range, and perform image processing of subjecting at least the image portion outside the target distance range to image processing of monotonizing visibility based on a determination result of the distance determination processing and displaying the image on the display.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: April 20, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Takuya Matsunaga, Tatsuya Kino, Yoshiyuki Fukuya, Nobuyuki Shima, Kazuhiko Osa, Osamu Nonaka
  • Patent number: 10979640
    Abstract: The present disclosure is directed toward systems and methods for predicting lighting conditions. In particular, the systems and methods described herein analyze a single low-dynamic range digital image to estimate a set of high-dynamic range lighting conditions associated with the single low-dynamic range lighting digital image. Additionally, the systems and methods described herein train a convolutional neural network to extrapolate lighting conditions from a digital image. The systems and methods also augment low-dynamic range information from the single low-dynamic range digital image by using a sky model algorithm to predict high-dynamic range lighting conditions.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: April 13, 2021
    Assignee: ADOBE INC.
    Inventors: Yannick Hold-Geoffroy, Sunil S. Hadap, Kalyan Krishna Sunkavalli, Emiliano Gambaretto
  • Patent number: 10958886
    Abstract: A video processing system is provided for reducing distortion in video signals. The system includes a first transfer function that applies a transfer function to a received video signal to generate a gamma corrected video signal in a first color space; and a first matrix component that transforms the gamma corrected video signal in the first color space to a gamma corrected signal in a second color space, and extracts a luminance component from the gamma corrected signal in the second color space. Moreover, the system includes a second transfer function that generates a gamma corrected downsampled video signal in the first color space, and a second matrix component that transforms the gamma corrected video signal in the first color space to a gamma corrected video signal in the second color space, and extracts the chroma component in the second color space.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: March 23, 2021
    Assignee: GRASS VALLEY LIMITED
    Inventor: Jeffery R. Butters
  • Patent number: 10951828
    Abstract: Provided is an apparatus and method that perform display control to avoid a blackout of a display unit at the time of capturing an image for recording. The apparatus includes an imaging element, a frame memory, a display unit, and a control unit, and the control unit starts exposure preparation processing of the image for recording in response to input detection of image-capturing operation on the imaging apparatus, and executes exposure processing of the image for recording in the imaging element and storage processing of the image for recording in the frame memory after completion of the exposure preparation processing. Moreover, the control unit stops exposure of an image for displaying of the imaging element with the start of the exposure preparation processing, and displays the image for displaying on the display unit until display of the image for recording is enabled, to avoid the blackout.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: March 16, 2021
    Assignee: SONY CORPORATION
    Inventors: Yasuhito Tanaka, Yohei Hamada
  • Patent number: 10943561
    Abstract: The image data display system according to the present invention makes it possible to comprehend a global distribution of measurement values and a change in details of the measurement values simultaneously. In the present invention, a color information conversion unit converts the measurement values to color information for representing the global distribution of the measurement values. A detail extraction unit extracts detail information of the measurement values from the measurement values. A detail adjustment unit adjusts the strength of detail information and generates adjusted detail information. A color information adding unit adds color information on the basis of the adjusted detail information.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: March 9, 2021
    Assignees: NEC Corporation, TOKYO INSTITUTE OF TECHNOLOGY
    Inventors: Takashi Shibata, Masayuki Tanaka, Masatoshi Okutomi
  • Patent number: 10944913
    Abstract: An imaging element which outputs an image signal acquired by an imaging unit having a plurality of pixel portions is provided. The imaging element receives a target luminance value from an imaging device and executes exposure control in the imaging element on the basis of an accumulation time of the pixel portion and a gain for an output signal of the imaging unit, which correspond to the target luminance value. The imaging element instructs the imaging device to perform exposure control if a luminance value of a subject exceeds an exposure control range in the imaging element.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: March 9, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Kondo
  • Patent number: 10943337
    Abstract: An image processing apparatus and method for a high dynamic range effect includes a conversion circuit, a specular detection circuit, and a blending circuit. The conversion circuit converts first pixel data of the current pixel of a current frame to a second pixel data, wherein a luminance of the second pixel data is lower than a luminance of the first pixel data. The specular detection circuit detects a specular degree of the current frame to produce a specular map, wherein the specular map includes a specular degree value of a current pixel. The blending circuit blends the first pixel data and the second pixel data according to the specular degree value of the current pixel to obtain blended pixel data of the current pixel.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 9, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Shuyao Wang, Yongchao Li, YuanJia Du
  • Patent number: 10922796
    Abstract: A method of converting a wide dynamic range (WDR) image to a low dynamic range (LDR) image have the steps of: (i) obtaining a transfer function that has a plurality of sub-functions, each sub-function corresponding to a non-overlapped input interval of the dynamic range of the WDR image; (ii) determining the intensity of each pixel of the LDR image by using the transfer function and at least the intensity value of the corresponding pixel of the WDR image; and (iii) outputting the LDR image.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: February 16, 2021
    Assignee: TONETECH INC.
    Inventors: Orly Yadid-Pecht, Jie Yang, Alain Hore, Ulian Shahnovich
  • Patent number: 10911640
    Abstract: The controller of the image reading apparatus acquires second reference data indicating a reading value of a background plate by causing the reading unit to read the background plate during a non-document-reading period between a document-reading period and a document-reading period, calculates a first difference indicating a difference between a value in a first pixel range corresponding to an element group, among the plurality of photoelectric conversion elements, in a range under temperature influence by a given heat generation source and a value in a second pixel range, that is, part of a pixel range which does not fall under the first pixel range with respect to the second reference data, and updates, when the first difference exceeds a first allowable value, the first reference data by correcting a value in the first pixel range of the first reference data based on the first difference.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 2, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Soichi Otomaru
  • Patent number: 10902601
    Abstract: Given a standard-dynamic range (SDR) video input, techniques for generating and compressing composer metadata describing inverse luma and chroma reshaping functions are described. Given the SDR input, the composer metadata allow a decoder to generate a corresponding output in high-dynamic range. Three techniques are proposed: a static, sequence-based, architecture, a two-stage, scene-based, distributed solution with a centralized post-processing method, and a single-stage distributed solution using overlapped segments. Techniques to reduce the amount of transmitted composer metadata are also described.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: January 26, 2021
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Neeraj J. Gadgil, Yee Jin Lee, Qian Chen, Guan-Ming Su
  • Patent number: 10896488
    Abstract: A method for removing haze from an image is provided. The image is converted to S(x) and V(x), the S(X) is saturation component of the image, and the V(x) is value component of the image. The S(x) is filtered to obtain S?(x), and the V(x) is filtered to obtain V?(x). A depth d(x) is estimated by calculating a difference between the S?(x) and V?(x). Once a transmission map t(x) is calculated based on the d(x), haze is removed from the image based on the transmission map t(x).
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: January 19, 2021
    Assignee: Mobile Drive Technology Co., Ltd.
    Inventors: Chun-Hsiang Huang, Ting-Hao Chung, Chun-Yi Wang, Yu-Feng Kuo
  • Patent number: 10896498
    Abstract: Systems and methods are provided for characterizing a ply of fiber having a thermoplastic veil. One method includes acquiring an image of a fiber material comprising strands of fiber and further comprising a veil of filaments of thermoplastic, subdividing the image into slices, determining an amount of melted filaments depicted within each of the slices, and determining an amount of unmelted filaments depicted within each of the slices.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 19, 2021
    Assignee: The Boeing Company
    Inventor: Martin Alexander Szarski
  • Patent number: 10861194
    Abstract: A parameter obtaining circuit obtains a color saturation parameter which determines a degree of adjustment of color saturation of a captured image. A correction parameter calculation circuit calculates a color saturation level correction parameter which determines a degree of saturation level correction processing based on the color saturation parameter and a position of a pixel included in the captured image. A correction processing circuit performs the color saturation level correction processing on the captured image in accordance with the color saturation level correction parameter.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 8, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Omori
  • Patent number: 10846834
    Abstract: A shadow brightening method includes receiving, at a memory device, an original input image, a brightening level, and a threshold pixel intensity. If a pixel intensity is greater than the threshold, then the pixel is considered bright. Otherwise, the pixel is shadowed. The method includes calculating a gamma transformation for each pixel. If the pixel intensity is less than or equal to the threshold, then a gamma transformation equal to the received brightening level is applied. If the pixel intensity is greater than the threshold, then the gamma transformation is scaled to decrease with intensity. For each shadowed pixel, the method includes computing a minimum value. It also includes determining the brightening level to be applied, thus creating a gamma map. The method also includes applying the determined brightening level to the shadowed pixels and outputting a shadow-brightened output image.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: November 24, 2020
    Assignee: United States of America as Represented by the Secretary of the Navy
    Inventor: Gregory K. Fleizach
  • Patent number: 10831012
    Abstract: Implementations of the disclosure are directed to predicting structured illumination parameters for a particular point in time, space, and/or temperature using estimates of structured illumination parameters obtained from structured illumination images captured by a structured illumination system. Particular implementations are directed to predicting structured illumination frequency, phase, orientation, and/or modulation order parameters.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 10, 2020
    Assignee: ILLUMINA, INC.
    Inventors: Michael J. Carney, Stanley S. Hong, Robert Langlois, Hongji Ren, Kevin Wayne Bartig, Rico Otto, Olga Andreevna Souverneva
  • Patent number: 10812765
    Abstract: An image processing apparatus including a processor is provided. The processor inputs, from an imaging element in which first imaging pixels having a lower SNR and second imaging pixels having a higher SNR are arranged on a same layer, a first captured image by the first imaging pixels and a second captured image by the second imaging pixels when the first imaging pixels and the second imaging pixels perform imaging simultaneously, selects a target pixel from the first captured image, extracts, from the second captured image or an interpolated image of the second captured image, pixels having luminance values close to a luminance value of a pixel corresponding to the target pixel in the second captured image or interpolated image, selects pixels corresponding to the extracted pixels from the first captured image, and corrects a luminance value of the target pixel based on luminance values of the selected pixels.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: October 20, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Mineki Taoka
  • Patent number: 10810705
    Abstract: A video dehazing method includes: capturing a hazy image including multiple inputted pixels by an image capture module, calculating an atmospheric light value according to the inputted pixels by an atmospheric light estimation unit, determining a sky image area according to the inputted pixels via the intermediate calculation results of a guided filter by a sky detection unit; calculating a dark channel image according to the inputted pixels based on dark channel prior (DCP) by a dark channel prior unit; calculating a fine transmission image according to the inputted pixels, the atmospheric light value, the sky image area and the dark channel image via a guided filter by a transmission estimation unit, generating a dehazing image according to the inputted pixels, the atmospheric light value and the fine transmission image by an image dehazing unit, and outputting the dehazing image by a video outputting module.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 20, 2020
    Assignee: NATIONAL CHIAO TUNG UNIVERSITY
    Inventors: Jiun-In Guo, Cheng-Yen Lin
  • Patent number: 10810709
    Abstract: In some embodiments, an apparatus includes a memory and a processor operatively coupled to the memory. The processor is configured to receive an electronic document having a set of pages, and partition a page from the set of pages of the electronic document into a set of portions. The processor is configured to convert each portion of the set of portions into a negative image of a set of negative images. The processor is configured to produce, based on an artificial intelligence algorithm, a de-noised negative image of each negative image and convert each de-noised negative image of a set of de-noised negative images into a positive image of a set of positive images, and combine each positive image of the set of positive images to produce a de-noised page. The de-noised page has artifacts less than artifacts of the page of the electronic document.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: October 20, 2020
    Assignee: EYGS LLP
    Inventors: Sunil Reddy Tiyyagura, Sridhar Venkataraman Dasaratha
  • Patent number: 10810455
    Abstract: An image processing method transforms image sequences into luminances, filters the luminances, determines the temporal differences between the luminances, performs a frequency domain transformation on the temporal differences, and applies a temporal contrast sensitivity function envelope integral to the frequency transform output to generate a temporal image metric. The temporal image metric may be applied for example to train a neural network or to configure a display device to depict a visual indication of the temporal image metric.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: October 20, 2020
    Assignee: NVIDIA Corp.
    Inventors: Jim Nilsson, Tomas Akenine-Moller
  • Patent number: 10805649
    Abstract: A method and device for blending multiple related frames into a single frame to reduce noise is disclosed. A method includes comparing an input frame to a corresponding reference frame in order to determine if at least one object that is in both frames moves in the input frame, and also to determine edge strengths of the at least one object. The method further includes, based on the comparison, determining which regions of the input frame to blend with corresponding regions of the reference frame, which regions of the input frame not to blend with corresponding regions of the reference frame, and which regions of the input frame to partially blend with corresponding regions of the reference frame.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ibrahim E. Pekkucuksen, John Glotzbach, Hamid R. Sheikh, Rahul Rithe
  • Patent number: 10805565
    Abstract: Embodiments of the present disclosure provide a CMOS image sensor, and a pixel circuit and a driving method thereof. The pixel circuit includes: a collection circuit configure to collect an incident light and convert a collected optical signal into an electric signal; a source follower circuit configured to output the received electric signal to a collection signal output terminal under the control of scan lines; and a voltage conversion circuit, configured to be connected to the collection signal output terminal through a read signal line, convert a voltage at the collection signal output terminal to an output voltage, and output the output voltage at a voltage output terminal, wherein the output voltage is within an operating voltage range of an image processor.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: October 13, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chih Jen Cheng, Xiaoliang Ding
  • Patent number: 10796419
    Abstract: An electronic apparatus includes a memory configured to store a predetermined conversion relation, and a processor configured to obtain first luminance information indicating luminance values of respective pixels included in a first image, and obtain first color information indicating color values of the respective pixels, obtain a first cumulative distribution function indicating a relation between a cumulative pixel count and each luminance level based on the first luminance information, obtain a second cumulative distribution function by applying the predetermined conversion relation to the first cumulative distribution function, calculate second luminance information indicating converted luminance values of the respective pixels by using the first cumulative distribution function and the second cumulative distribution function, and generate a second image based on the first color information and the second luminance information.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: October 6, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Dosik Hwang, Kihun Bang, Hanbyol Jang, Jinseong Jang, Min-su Cheon, Young-o Park, Sun-young Jeon
  • Patent number: 10796418
    Abstract: Provided is an image processing apparatus that detects a predetermined image region of an object from a photographed image; generates a correction parameter; and corrects a high-luminance region by using a correction parameter, in which, in a case where the high-luminance region is in an image region having a predetermined image region of a plurality of objects overlapping with each other therein, to which object having the predetermined image region the high-luminance region belongs is judged, and, on the basis of information of the predetermined image region the high-luminance region belongs to, the correction parameter with which the high-luminance region in the overlapping image region is corrected is generated.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: October 6, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Junji Tada
  • Patent number: 10791307
    Abstract: Embodiments of the present disclosure disclose an image details processing method, comprises: obtaining each luminance data in the image; performing non-linear transformation on the each luminance data to obtain corresponding transformed data; performing the low frequency processing on the transformed data to obtain low frequency data; based on the low-frequency data and the transformed data, determining the corrected luminance data. The embodiments of the present disclosure also disclose an image details processing apparatus, a terminal, and a storage medium.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: September 29, 2020
    Assignee: NUBIA TECHNOLOGY CO., LTD.
    Inventor: Dezhi Zhu
  • Patent number: 10783353
    Abstract: A method for identifying skin region in an image includes: selecting a pixel in the target image; calculating a first probability of the pixel in a first color space, the first probability being a probability that the pixel represents skin in the first color space; calculating a second probability of the pixel in a second color space distinct from the first color space, the second probability being a probability that the pixel represents skin in the second color space; determining a combined probability that the pixel in the target image represents skin based on the first probability and the second probability; expanding the pixel into a skin region in the target image by repeating said steps of determining a combined probability that another pixel adjacent to the pixel represents skin until the skin region reaches a predefined size threshold; and performing a predefined beautifying process to the pixels.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 22, 2020
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventor: Guofu Tan
  • Patent number: 10771755
    Abstract: An apparatus and a method that decrease a banding phenomenon in a subsampled image and achieve high image quality are provided. A subsampled image obtained by copying an adjacent pixel value to a pixel value thinning position is accepted as an input image; a correction target signal global gain is calculated as a ratio between a slope of a correction target signal and a slope of a luminance signal of a global region made up of a plurality of consecutive pixels including a pixel position of the correction target pixel of the input image; a luminance local slope is calculated as a slope of the luminance signal of a local region which is a region within the global region, including the pixel position of the correction target pixel of the input image and smaller than the global region; and a corrected pixel value of the correction target pixel is calculated.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 8, 2020
    Assignee: Sony Corporation
    Inventor: Hiroaki Eto
  • Patent number: 10748430
    Abstract: Improved flight display systems and methods that selectively deemphasize terrain are provided. The method includes receiving and processing navigation reference point data, terrain data, and aircraft status data. Next, the method (a) renders on a display system, in real-time, a viewing segment defined as at least a navigation reference point for the aircraft, the viewing segment having terrain rendered in a first level of terrain contrast; and (b) determines that the aircraft is in a terrain deemphasis scenario when an altitude is certain low altitude operations. When the aircraft is in the terrain deemphasis scenario, the method deemphasizes terrain within a determined boundary in the viewing segment. Deemphasizing includes decreasing terrain contrast to a second level of terrain contrast within the boundary. Terrain contrast within the boundary is restored to the first level responsive to receiving a restore trigger.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: August 18, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Gang He, Rui Wang