Color Correction Patents (Class 358/518)
  • Patent number: 11030972
    Abstract: An electronic device is disclosed. The electronic device includes a sensor, a storage unit for storing a color matching function (CMF), which has been pre-defined according to characteristics of a light source, and a processor for acquiring spectral information regarding at least one pixel of a display panel by using a sensor, for acquiring color stimulus values regarding at least one pixel on the basis of the stored CMF and the acquired spectral information, and for acquiring a correction coefficient regarding at least one pixel of the display panel on the basis of the acquired color stimulus values.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: June 8, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oh-jae Kwon, Seung-jin Baek, Ho-sik Sohn, Ho-young Lee, Kil-soo Jung
  • Patent number: 10965835
    Abstract: An image forming apparatus can prevent generation of correction data without setting a proper test original. A mat is closed for pressing an original on a platen. An opening/closing sensor detects a closed state and an open state of the mat. A density correction section corrects image data based on a correction condition. A printer forms an image based on the image data. A CPU controls the printer to form a pattern on a sheet, controls a CCD sensor to acquire read data concerning an image of the original according to user instruction for the CCD sensor to read the original, and generates the correction condition based on the read data. When the user instruction is given, if the open state of the mat is not changed to the closed state, the CPU displays a screen prompting the user to place the sheet on the platen.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: March 30, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Daisuke Nagao
  • Patent number: 10942690
    Abstract: A color shift security feature is provided. In at least one form, a clear colorant is used to add content to a document to provide a visual indication if the document is printed on a printer with self-limiting behavior. In this manner, in at least one form, it can be determined if a document is authentic, secure and/or authorized.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 9, 2021
    Assignee: XEROX CORPORATION
    Inventor: Mark A. Smith
  • Patent number: 10921740
    Abstract: An image forming apparatus includes a storing unit that stores information associated with a sheet type of a sheet and a sheet feed source, of a plurality of sheet feed sources, a selection unit that selects a sheet feed source from the plurality of sheet feeding sources based on at least a sheet type designated by a job and the stored information, and a feeding unit that feeds a sheet from the selected sheet feed source. The image forming apparatus also includes an image forming unit that forms an image on the sheet fed by the feeding unit, and a detector that detects a sheet type of the sheet fed from one of the plurality of sheet feed sources by the feeding unit. The storing unit stores the sheet type detected by the detector as the information indicating the sheet type of sheet stored in the sheet feeding source.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: February 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hidemi Sasaki
  • Patent number: 10922799
    Abstract: An image processing method includes the steps of acquiring a training image and a correct image, inputting the training image into a multilayer neural network to generate an output image, performing a gamma correction for each of the correct image and the output image and calculating an error between the correct image after the gamma correction and the output image after the gamma correction, and updating a network parameter of the neural network using the error.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 16, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Norihito Hiasa
  • Patent number: 10922857
    Abstract: An electronic device and a method of controlling the electronic device are provided. The electronic device includes a display and at least one processor. The at least one processor receives input information for generating at least part of a first object, recognizes the first object based on the received input information, and controls a display to display a color obtained from the first object and an image associated with the first object.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: February 16, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hwa-Jun Lee, Chae-Kyung Lee
  • Patent number: 10917542
    Abstract: A color conversion information generation apparatus converts a first coordinate value into a second coordinate value in a second color space by using first conversion information, acquires a colorimetric coordinate value in a first color space indicating a colorimetric result of an image output by a first output apparatus according to the second coordinate value, converts the second coordinate value into a third coordinate value by using second conversion information, determines a target coordinate value indicating a target color in the first color space based on the third coordinate value and a difference between the first coordinate value and the colorimetric coordinate value, retrieves a fourth coordinate value satisfying a condition that a color difference between a fifth coordinate value in the first color space obtained by converting a fourth coordinate value in the second color space by using the second conversion information and the target coordinate value is smaller than a color difference between th
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 9, 2021
    Assignee: Seiko Epson Corporation
    Inventor: Mitsuhiro Yamashita
  • Patent number: 10909663
    Abstract: A method of processing a digital image, the method comprising receiving a digital image, modifying each row of pixel colour values and then each column of modified pixel colour values or vice versa, represented as an array X of pixel or modified pixel colour values x(i), by calculating each value y(i) of an array Y as a function at least of an exponentially weighted moving average a(i) of the array X, calculated in ascending order of the array X value indices, and an exponentially weighted moving average b(i) of the array X, calculated in descending order of the array X value indices, or an exponentially weighted moving average b?(j) of an array X? containing the values of the array X in reverse order, calculated in ascending order of the array X? value indices, where i, j are the array value indices, wherein 0?i<N, j=N?1?i, N is the array size, with replacement of x(i) with y(i).
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: February 2, 2021
    Inventors: Danylo Kozub, Iurii Shapoval
  • Patent number: 10908543
    Abstract: An image forming apparatus includes an input device, an image forming device, and a control device. The control device includes a processor, and acts, when the processor executes a control program, as a controller that, upon receipt of an instruction to form a source document image on a first face of a plurality of recording media through the input device, causes the image forming device to form the source document image on the first face of the plurality of recording media, designates a recording medium on which a see-through prevention image, constituted of a predetermined pattern, is to be formed, out of the plurality of recording media, and causes the image forming device to form the see-through prevention image only on a second face, opposite to the first face, of the recording medium designated.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: February 2, 2021
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Yasufumi Inoue
  • Patent number: 10904499
    Abstract: A reference-color-list generating unit of a server generates a reference color list on the basis of reference color lists stored in a CLDB, at a timing reported from a program-information management unit. An S-metadata generating unit generates S metadata from TV program information stored in an RVDB and the reference color list. A C-metadata generating unit of a user terminal generates C metadata from individual information of each frame constituting a captured image and the reference color list. An authenticity determining unit determines whether to permit or deny check-in by a user on the basis of the obtained C metadata, the S metadata extracted by the CMDB, and program detail information managed by the program-information management unit.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 26, 2021
    Assignee: CYGAMES, INC.
    Inventor: Shuichi Kurabayashi
  • Patent number: 10897557
    Abstract: An image forming apparatus includes circuitry and a reading device. The circuitry is configured to generate a plurality of patterns in different colors to form the plurality of patterns on a recording medium. The reading device is configured to read the plurality of patterns and a plurality of blank areas adjacent to the plurality of patterns from the recording medium. The circuitry is configured to detect a reading error of the plurality of patterns according to read values of the plurality of patterns and the plurality of blank areas and perform color calibration on a reference color by use of the read values of the plurality of patterns.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: January 19, 2021
    Assignee: Ricoh Company, Ltd.
    Inventor: Manabu Komatsu
  • Patent number: 10896635
    Abstract: Disclosed is a primary color conversion method, which may expand primary color signals that are applicable to a display device. The primary color conversion method includes: acquiring color coordinates and a brightness value of a first color in a first color gamut having M primary colors according to gray-scale values of the M primary colors corresponding to the first color; and mapping the color coordinates and the luminance value of the first color in the first color gamut to color coordinates and a brightness value of a second color corresponding to the first color in a second color gamut having N primary colors. 3?M, 3?N, M is different from N, and M and N are positive integers.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: January 19, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yanhui Xi, Bin Dai, Xiaomang Zhang, Yan Sun, Kuanjun Peng, Haijun Niu, Xiaolong Li, Donghui Wang
  • Patent number: 10893192
    Abstract: An image pickup apparatus, including: a common processing unit including a fixed level signal generating unit configured to generate a fixed level signal that have discrete values in a color space and an address in association with each other and an image processing unit configured to perform image processing on the fixed level signal to generate grid data under the condition set by the user or the condition automatically set by the image pickup apparatus; and an individual processing unit including a three-dimensional lookup table storage unit configured to store a three-dimensional lookup table in which the address and the grid data are associated with each other and output the grid data corresponding to the address of an image pickup signal and an interpolation processing unit configured to perform interpolation processing using the grid data and the image pickup signal.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 12, 2021
    Assignee: JVCKENWOOD Corporation
    Inventor: Toshihide Kobayashi
  • Patent number: 10855962
    Abstract: A projector includes a measurement unit and a correction parameter generation unit. The measurement unit measures a color of image light of the image formed on a projection surface in terms of a plurality of colors constituting an RGB color system and a Z value in an XYZ color system. The correction parameter generation unit generates a correction parameter based on a first measurement value and a second measurement value. The first measurement value measured by the measurement unit is obtained by converting a measurement value of the color in the RGB color system into the color in the XYZ color system. The second measurement value measured by the measurement unit is a value in the XYZ color system. The measurement unit includes an optical filter having transmittance characteristics corresponding to spectral characteristics of blue light, in a wavelength range of a color light in the RGB color system.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: December 1, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Yuichiro Matsumoto
  • Patent number: 10853972
    Abstract: An apparatus for processing an image includes a memory and a processor coupled to the memory. The processor is configured to determine a base hue value based on a state of distribution of a first hue value of each pixel of at least one image. The processor is configured to convert the first hue value of each pixel of the at least one image into a second hue value based on the base hue value. The processor is configured to calculate a difference in the second hue value between pixels included in each of a plurality of pixel pairs set in at least one feature region in the at least one image. The processor is configured to calculate a local feature amount of each of the at least one feature region based on the difference in the second hue value.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: December 1, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Masahiko Sugimura, Yasutaka Moriwaki, Hiroaki Takebe, Takayuki Baba
  • Patent number: 10839271
    Abstract: A chromaticity value, which is a measurement result for a sheet to be measured, is acquired by using a sensor in which a light source has fixed characteristics, a condition under which the measurement result is acquired by the sensor is designated, an optical brightening agent amount contained in the sheet is determined by using a spectral reflectance obtained by performing measurement on the sheet with use of the sensor, and the acquired chromaticity value is converted by using the designated condition and information about the determined optical brightening agent amount.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: November 17, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohisa Itagaki, Takaaki Yano, Aya Ito
  • Patent number: 10841434
    Abstract: An image forming system includes an image forming device configured to form an image on a recording medium, a reading device configured to read the image formed on the recording medium by the image forming device, and circuitry. The circuitry is configured to control the reading device; calculate a density of each predetermined unit area of the read image; determine whether the read image includes a region satisfying a predetermined density condition based on the calculated density; and output an image of a first region of the read image not satisfying the predetermined density condition, an image of a second region satisfying the predetermined density condition, and a visual representation associated with the second region in response to a determination that the read image includes the second region.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: November 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Dai Kurabayashi
  • Patent number: 10800184
    Abstract: A density correction value determining method of correcting a printing density in a printing apparatus that performs printing by ejecting ink from a plurality of nozzles onto a medium, includes printing a test pattern by ejecting ink from the plurality of nozzles, acquiring captured image data by imaging printed test pattern, calculating a first density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by ejecting ink from each single nozzle of the plurality of nozzles based on a density of acquired captured image data, and calculating a second density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by combining different nozzles of the plurality of nozzles based on the calculated first density correction value.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: October 13, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Jun Hoshii
  • Patent number: 10777584
    Abstract: A display device includes a signal line driver, provided in a peripheral area of a display panel, that outputs video signals, a signal selection circuit that distributes the video signals output from the signal line driver among signal lines connected to pixels, and a plurality of connection lines that make connection between the signal line driver and the signal selection circuit, and a shield layer made of the same material as second transparent electrodes that are pixel electrodes on a layer above the plurality of connection lines in an area excluding the signal selection circuit.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: September 15, 2020
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Hiroyuki Abe, Naoki Miyanaga
  • Patent number: 10750173
    Abstract: To have a much better usable pragmatic manner of HDR video encoding and decoding, the inventor invented a high dynamic range video decoder (500) arranged to receive an encoding (Im_COD) of a high dynamic range video and to decode and output a set of temporally successive images (Im_RHDR) comprising: An input (502) to receive three weight values (kRY, kGY, kBY); A video decoder (501) arranged to decode the encoding (Im_COD) into an intermediate image (Im_RLDR) being in a Y?CbCr color representation; A brightness index calculation unit (503) arranged to calculate for each pixel of the intermediate image (Im_RLDR) a brightness index (J?) being defined as J?=Y?+MAX{kRY*(R??Y?), kGY*(G??Y?), kBY*(B??Y?)}; A brightness mapper (505) arranged to receive a specification of at least one one-dimensional function F_ct, and to apply it with the brightness index (J?) as input, to obtain an output brightness index (J*); A multiplication factor calculation unit (506) arranged to calculate a multiplicative factor (g) being eq
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: August 18, 2020
    Assignee: Koninklijke Philips N.V.
    Inventor: Jeroen Hubert Christoffel Jacobus Stessen
  • Patent number: 10721365
    Abstract: An image reading device includes a reader, an opposing member, and circuitry. The reader is configured to read an image of an object to be conveyed. The opposing member has a plurality of opposing portions that include reference surfaces selectively switchable to be placed at a reading position of the reader. The reference surfaces include two or more identical reference surfaces. The circuitry is configured to determine whether an evaluation reading value of reading values read by the reader on each of the two or more identical reference surfaces is within a prescribed range and perform correction operation of the image reading device with the evaluation reading value within the prescribed range out of the reading values of the two or more identical reference surfaces.
    Type: Grant
    Filed: January 21, 2019
    Date of Patent: July 21, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroki Terauchi
  • Patent number: 10692245
    Abstract: A method is provided for identifying colors across illuminants using a processor configured by code executing therein, the method comprising capturing a sample image with an image recording device, the image including pixels representing a color sample under analysis and a color reference chart. The processor is also configured to execute comparing the color values of pixels representing the color reference chart of the sample image to the pixel values corresponding to a plurality of entries within a plurality of color reference datasets to determine the dataset representing the closest match of the illumination present at the time the sample image was captured. Using the identified illuminant, the color reference dataset having the closest illuminant is searched for the color under analysis.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: June 23, 2020
    Assignee: DATACOLOR INC.
    Inventors: Zhiling Xu, Taeyoung Park
  • Patent number: 10672359
    Abstract: A display driver includes amplifier circuits, D/A conversion circuits configured to output D/A conversion voltages to the amplifier circuits, a logic circuit, and signal line groups that couple the D/A conversion circuits to the logic circuit. The amplifier circuits are disposed in a direction D1. The D/A conversion circuits are disposed in the direction D1 on a direction D2 of the amplifier circuits. The logic circuit is disposed on the direction D2 of the D/A conversion circuits, and outputs first to n-th display data, with each display data being k bits, to the D/A conversion circuit on the signal line group in a time division manner.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: June 2, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Akihiro Tomie
  • Patent number: 10657664
    Abstract: A method and system for capturing images and depth for image-based rendering. Capture is made by a multi-camera configuration using a combination of image and depth cameras. Rendering utilizes scene geometry derived from image and depth data.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: May 19, 2020
    Inventor: Jingyi Yu
  • Patent number: 10652431
    Abstract: An image forming apparatus that is capable of improving a specified-color removal process. An obtaining unit obtains color image data. A color specification unit specifies removal color. A specified-color removal unit removes color that is determined to be removed according to determination based on a brightness threshold and a first saturation threshold about the removal color from the color image data obtained.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: May 12, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Hidekazu Nakashio
  • Patent number: 10643311
    Abstract: A method for correcting a dehazed medical image is proposed to include: acquiring first saturation values of a medical image and second saturation values of a dehazed medical image in an HSV color space; acquiring a saturation difference value based on the first saturation values and the second saturation values; acquiring a correction value based on the medical image and a threshold value; acquiring a saturation correction value based on the saturation difference value and the correction value; and correcting the dehazed medical image based on the saturation correction value.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: May 5, 2020
    Assignee: HIWIN TECHNOLOGIES CORP.
    Inventors: You-Min Chen, Hung-Chuan Hsu
  • Patent number: 10623607
    Abstract: An image processing apparatus includes: a storage unit to store therein, for each of a plurality of colors, correction information in which a correction value for obtaining a target output value is associated with each of combinations of one of a plurality of density values of image data corresponding to the color and one of a plurality of positions in a main scanning direction of image data; and a corrector to correct, when a pixel in input image data indicating image data received from a host device includes two or more colors, for each of the two or more colors, a density value of the color using a value smaller than a correction value corresponding to a combination of the density value of the color and a position of the pixel in the main scanning direction.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: April 14, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Naoto Watanabe, Takeshi Ogawa, Takashi Soma
  • Patent number: 10606460
    Abstract: An electronic device according to various embodiments of the present invention may comprise: a display; a processor for generating a frame image; and a display driving circuit for driving the display, the display driving circuit including an image processing module and a memory, wherein the display driving circuit is configured to acquire the frame image from the processor, generate a different frame image by applying a designated effect to at least a partial area of the frame image, and display the different frame image through the display.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: March 31, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Kon Bae, Yo-Han Lee, Dong-Hui Kim, Dong-Kyoon Han, Hanyuool Kim
  • Patent number: 10602026
    Abstract: An image processing apparatus includes a specifying unit, an extraction unit, and a creation unit. The specifying unit specifies, for one image among a first image before color conversion and a second image after color conversion, an area for which image information is extracted. The extraction unit extracts plural pieces of color conversion information, which are image information about pixels in the area of the one image among the first image and the second image, the area being specified by the specifying unit, and image information about pixels in the other image corresponding to the pixels in the one image. The creation unit creates a color conversion property on the basis of the plural pieces of color conversion information extracted by the extraction unit.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: March 24, 2020
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Toshihiro Iwafuchi, Noriko Sakai, Yusuke Izumisawa
  • Patent number: 10600336
    Abstract: A real-time multimodal image perception system to transform the standard lab blood smear image for persons with BVI to perceive, employing a combination of auditory, haptic, and vibrotactile feedbacks. These sensory feedbacks are used to convey visual information in appropriate perceptual channels, thus creating a palette of multimodal, sensorial information. A Bayesian network is provided to characterize images through two groups of features of interest: primary and peripheral features. A method is provided for optimal matching between primary features and sensory modalities.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 24, 2020
    Assignee: Purdue Research Foundation
    Inventors: Bradley S. Duerstock, Juan P. Wachs, Ting Zhang, Greg Williams
  • Patent number: 10573303
    Abstract: The present invention provides a voice control method and apparatus that increases the efficiency of voice control. In one exemplary method, a voice system receives a voice command input by a user and determines if the voice command is related to a foreground application. If the voice command is determined to relate to the foreground application, a control command corresponding to the voice command is sent to the foreground application to cause the foreground application to execute the control command. If the voice command is determined to not relate to the foreground application, a background application is identified and the control command corresponding to the voice command is sent to the identified background application to cause the background application to execute the control command.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: February 25, 2020
    Assignee: Alibaba Group Holding Limited
    Inventors: Shanwen Shi, Boxue Zhang, Lijuan Cai
  • Patent number: 10572986
    Abstract: The present disclosure discloses an image enhancement method and device. The method comprises: performing logarithm related processing on a grayscale value matrix Y of an original image to obtain a logarithmic matrix L_LOG; quantizing the logarithmic matrix L_LOG to obtain a quantized matrix Y_RE; and obtaining an enhanced image of the original image according to the quantized matrix Y_RE, wherein quantizing the logarithmic matrix L_LOG comprises: when the logarithmic matrix L_LOG is quantized to be within a grayscale range of a certain depth, causing a zero point of the logarithmic matrix L_LOG to be close to an average value of the grayscale value matrix Y.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: February 25, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Chengqi Zhou, Jun Guo, Xin Duan, Xiaomang Zhang, Jieqiong Wang, Ming Chen
  • Patent number: 10574961
    Abstract: Disclosed is an image processing apparatus and a control method thereof that can correct the brightness of a pixel in an image. Reflection characteristics of environment light when the image is captured are estimated by applying smoothing to the image. The brightness of the pixel is corrected by computing a correction value for correcting the brightness of the pixel based on the reflection characteristics of the environment light and adding the correction value to the pixel. The brightness can be corrected while suppressing an amplification of noise and a loss of details of a subject.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: February 25, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kotaro Kitajima
  • Patent number: 10567635
    Abstract: A method and system for determining depth of an image using a single imager and a lens having a variable focal length is provided. The system comprises a microfluidic lens having a variable focal length controlled by a lens controller and an imager receiving an image of an object from the lens, wherein the imager is configured to receive a first image comprising a first plurality of pixels from the lens at a first focal length and a second image comprising a second plurality of pixels from the lens at a second focal length, the second focal length being different than the first focal length, non-volatile memory, wherein the first image and the second image are stored in the non-volatile memory, a depth module configured to determine a distance between the lens and the object based by a comparison of the first image of the object and the second image of the object.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: February 18, 2020
    Assignee: Indiana University Research and Technology Corporation
    Inventors: Lauren Christopher, Chao Liu
  • Patent number: 10560607
    Abstract: A computer-implemented method for color correction includes determining a peak signal-to-noise ratio (PSNR) for a noise evaluation image, determining a corrected PSNR for a corrected noise evaluation image, determining a downsampled PSNR for a downsampled noise evaluation image obtained by downsampling the noise evaluation image, determining a downsampled corrected PSNR for a downsampled corrected noise evaluation image obtained by downsampling the corrected noise evaluation image, and determining a noise amplification metric based on the PSNR, the corrected PSNR, the downsampled PSNR, and the downsampled corrected PSNR.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: February 11, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Wei Chen, Zisheng Cao
  • Patent number: 10521959
    Abstract: To reduce structure noise, input data representing an input structure is obtained and boundary conditions are set by classifying data of each of multiple structure elements of the input data as a signal component or a noise component. A smoothing operation is performed with respect to the input data and based on the boundary conditions. Output data representing an output structure is provided by reducing noise from the input structure.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: December 31, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hyun Lee, Sung-Hwan Jang, Sung-Youn Chung, Jae-Hoon Jeong
  • Patent number: 10516809
    Abstract: A printing system is disclosed. The printing system includes a color management unit including optimization logic to generate a multi-dimensional color management lookup table derived from an input color to output color mapping, wherein the multi-dimensional color management lookup table has a non-uniform spacing of grid points specifying a correspondence between each of a plurality of input color space dimensions and output color space dimensions, and a color engine to receive an input color in an input color space, perform a multi-dimensional interpolation via the multi-dimensional color management lookup table to map the input color to an output color in an output color space; and return the output color.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: December 24, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Vincent William Ferreri, Walter F. Kailey
  • Patent number: 10506209
    Abstract: An image output control device controls an image output device that outputs an image. The image output control device performs an adjustment to make an output image close to a reference image of a reference image display apparatus preliminarily set. The image output control device includes a capturing unit and an image adjustment unit. The capturing unit captures the output image to generate output image data. The image adjustment unit calculates an adjustment amount for making the output image close to the reference image using the output image data to adjust image data using the calculated adjustment amount.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 10, 2019
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Takashi Toyoda
  • Patent number: 10506134
    Abstract: An image processing apparatus according an aspect of the present disclosure converts image signals indicating an image to output signals including signals corresponding to individual color components that an output device deals with by interpolation processing using a look-up table. The apparatus includes a first conversion unit and at least one second conversion unit. The first conversion unit converts the image signals to image signals corresponding to linearity of the signals corresponding to the individual color components. The at least one second conversion unit converts the image signals converted by the first conversion unit to the output signals by the interpolation processing.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: December 10, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Ochiai, Shoei Moribe
  • Patent number: 10475189
    Abstract: Techniques are described for obtaining at least one image using at least one processor. The techniques may include selecting a plurality of objects defined by a plurality of pixels within the at least one image. The techniques may include determining perceptual information associated with each of the plurality of objects and generating a context for each of the plurality of pixels that define the plurality of objects. The techniques may also include automatically thresholding the at least one image to generate an output image that represents the at least one image.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: November 12, 2019
    Assignee: Adobe Inc.
    Inventors: Vipul Aggarwal, Naveen Prakash Goel
  • Patent number: 10469711
    Abstract: A colorimetric device includes: a feeding unit configured to feed a transfer medium; a colorimeter configured to perform colorimetry of an image that is formed on the transfer medium and that has a color boundary in a feeding direction; and a colorimetry control unit configured to control the feeding unit and the colorimeter, wherein the colorimetry control unit acquires color information related to the color boundary of the image and determines the color boundary of the image based on the color information and a result of the colorimetry performed by the colorimeter.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: November 5, 2019
    Assignee: Konica Minolta, Inc.
    Inventors: Kenichi Hayashi, Hiroyuki Futami, Katsunori Takahashi, Takashi Nara, Tatsuhiro Noutomi
  • Patent number: 10467283
    Abstract: A method of product recognition, comprising decomposing a product image of into a set of frequency components; performing a frequency analysis for each frequency component in the set of frequency components; detecting a plurality of edge pixels of the image based on the frequency analysis; selecting a set of interested pixels in the region of each of the plurality of edge pixels; creating a quantized product image; and creating a normalized histogram of the quantized image using the sets of interested pixels selected for each of the plurality of edge pixels, wherein product recognition is based on similarities between the normalized histogram of the quantized image and images of similar products in a database of products.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: November 5, 2019
    Assignee: CHANNELSIGHT LIMITED
    Inventors: Georgios Bagropoulos, Petros Alvanitopoulos, Adrian Moroi, Kieran Dundon
  • Patent number: 10412268
    Abstract: An image capturing system includes an imager, a detector, and a controller. The imager is configured to move relative to an object to be imaged and capture an image of the object. The detector is configured to detect a predetermined relative position of the object with respect to the imager. The controller is configured to switch from stop supplying a system clock to supplying the system clock based on the detected predetermined relative position. The system clock is used to control a timing to start capturing an image by the imager. After stops supplying the system clock, the controller resumes supplying the system clock to the imager according to a relative movement of the object, based on the detected predetermined relative position.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 10, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Nobuyuki Satoh, Junichi Moribe
  • Patent number: 10401220
    Abstract: A spectrometer module comprising a plurality of separate electronic circuit modules is disclosed. Each separate electronic module comprises an integrated sensor circuit including a light sensitive area occupying part of an area of the integrated sensor circuit, the integrated sensor circuit being arranged to detect incident light. In one aspect, the plurality of separate electronic circuit modules includes a group of adjacent electronic circuit modules. The light sensitive areas of the electronic circuit modules in the group are so arranged on the respective integrated sensor circuits that the group of adjacent electronic circuit modules is mounted so that the light sensitive areas thereof are arranged in vicinity to each other. The spectrometer module includes an optical module, which is common to said plurality of separate electronic circuit modules and arranged to direct incident light towards the light sensitive areas of each of said electronic circuit modules.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: September 3, 2019
    Assignee: Spectricity
    Inventors: Jerome Baron, Jonathan Borremans, Andy Lambrechts
  • Patent number: 10395572
    Abstract: A display device includes a display panel including a display panel including pixels, a timing controller configured to calculate an on-pixel ratio of input image data provided from an external component, and a data driver configured to select a first gamma correction value from among a plurality of gamma correction values based on the on-pixel ratio, and configured to generate a data signal based on the input image data and the first gamma correction value.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: August 27, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventor: Ahn-Ho Jee
  • Patent number: 10362197
    Abstract: An image control device includes a reception unit that receives patch chart data items arranged such that the patch data items corresponding to a plurality of patches belonging to a same hue, among a plurality of patches constituting a patch chart, are positioned only in any of grid points of grid lines which divide a lightness axis and a saturation axis which define a hue plane corresponding to the hue at equal intervals, and a controller that outputs the patch chart data items to an image forming unit which forms the patch chart on a recording material if an output operation of the patch chart is received.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 23, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Takaya Nagasaki, Seiji Shiraki
  • Patent number: 10356282
    Abstract: In color separation processing by a method that combines a multidimensional LUT and interpolation processing, smooth gradation is implemented by reducing errors accompanying interpolation processing. An image processing apparatus includes a color separation processing unit configured to perform, by interpolation processing using a lookup table having a plurality of dimensions in accordance with signal components of an input image, color separation of an input value that is each pixel value of the input image into an output value corresponding to each of signal components handled by an output device, and each grid point of the lookup table is associated with information representing change characteristics at each portion between adjacent grid points for each dimension of the plurality of dimensions, and in the color separation processing, the interpolation processing is performed based on the information representing the change characteristics.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: July 16, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Ochiai, Hisashi Ishikawa, Akitoshi Yamada
  • Patent number: 10348452
    Abstract: Video data transmission in a communication system is provided. A method for operating a transmitting node includes generating a packet comprising data selected from compressed data and raw data based on a data size, and transmitting the packet.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: July 9, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jae-Hyon Kim, Myung-Ha Kuh
  • Patent number: 10318801
    Abstract: An image processing apparatus includes a first extraction unit, a second extraction unit, and a third extraction unit. The first extraction unit extracts a first area in an image that includes plural document images, the first area having low-frequency characteristics. The second extraction unit extracts a second area in the image, the second area having high-frequency characteristics. The third extraction unit extracts areas of the document images by combining the first area and the second area in accordance with whether a background of the image is white.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: June 11, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Masakazu Fukunaga
  • Patent number: 10311561
    Abstract: The image inspection method includes: a step of acquiring data of an inspection image obtained by capturing an image of a recorded matter recorded by an image recording system that performs a compensation process of compensating for a defect caused by a failure in an image formation element, using an imaging apparatus; a step of acquiring data of a reference image; and a step of comparing the data of the inspection image with the data of the reference image to determine whether there is a defect at each position of the inspection image. The defect detection step includes a process that makes a defect detection performance different in a compensation application region and a compensation non-application region other than the compensation application region, on the basis of compensation position information of the failure in the image formation element to which the compensation process has been applied.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: June 4, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Masayuki Ukishima