Based On Four Colors Patents (Class 348/279)
  • Patent number: 10455112
    Abstract: The present disclosure relates generally to digital watermarking for retail product packaging. A digital watermark can be carried in different color channels, and at with different signal polarities. Detection can utilize different illumination sources or image sensors with various filters to highlight signal in one or more of the channels.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: October 22, 2019
    Assignee: Digimarc Corporation
    Inventors: Kristyn R. Falkenstern, Alastair M. Reed
  • Patent number: 10423001
    Abstract: Color separation devices, and image sensors including the color separation devices and color filters, include at least two transparent bars that face each other with a gap therebetween. Mutually-facing surfaces of the at least two transparent bars are separated from each other by the gap such that the at least two transparent bars allow diffraction of visible light passing therebetween. The at least two transparent bars have a refractive index greater than a refractive index of a surrounding medium.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: September 24, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sunghyun Nam, Sookyoung Roh, Seokho Yun, Changgyun Shin, Hyungue Hong
  • Patent number: 10237519
    Abstract: An imaging apparatus includes an image-forming optical system that forms an image by using optical signals; an imaging device that includes a plurality of pixels, receives, with the plurality of pixels, the optical signals used to form the image, and converts the optical signals into electric signals; and a color filter that is located between the image-forming optical system and the imaging device and has a light transmittance which differs according to positions on the color filter corresponding to the plurality of pixels and according to a plurality of wavelength bands.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: March 19, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Sato, Kunio Nobori, Takamasa Ando, Takeo Azuma, Nobuhiko Wakai
  • Patent number: 10122945
    Abstract: Electronic devices may include image sensors having configurable image sensor pixel interconnections. Image sensors may include image sensor pixels coupled to analog circuitry via configurable interconnect circuitry. The analog circuitry may include many analog circuit blocks. The analog circuit blocks may control and read out signals from associated image sensor pixels. The configurable interconnect circuitry may be controlled to reroute the connections between the analog circuit blocks and specific groups of image sensor pixels. Digital circuitry may be coupled to the analog circuitry via configurable interconnect circuitry. The digital circuitry may include digital circuit blocks. There may be significantly more image pixels controlled by a small number of analog circuit blocks, which are in turn controlled by a smaller number of digital circuit blocks. The image sensor pixel array, the configurable interconnect circuitry, the analog circuitry, and the digital circuitry may be vertically stacked.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: November 6, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventor: Graham Kirsch
  • Patent number: 10085002
    Abstract: The present invention relates to an RGB-IR sensor, and a method and an apparatus for obtaining a 3D image by using the same. The RGB-IR sensor according to the present invention comprises: a first pixel basic unit including one of each of R, G, B and IR pixels; and a second pixel basic unit in which the R, G, B and IR pixels are arranged in a different order from those in the first pixel basic unit, wherein the RGB-IR sensor is comprised by alternately arranging the first pixel basic unit and the second pixel basic unit in a horizontal direction, and wherein R, G, B and IR pixel arrangements in the first pixel basic unit and the second pixel basic unit are determined so that the position of IR-pixels in the RGB-IR sensor are not equidistance apart from each other.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: September 25, 2018
    Assignee: LG Electronics Inc.
    Inventors: Ayoung Cho, Sunho Yang, Yunsup Shin, Sungmin Kim, Youngman Kwon, Yungwoo Jung, Seongkeun Ahn, Changhwan Lee
  • Patent number: 10070104
    Abstract: An image sensor may have an array of image sensor pixels arranged in color filter unit cells each having one red image pixel that generates red image signals, one blue image pixel that generate blue image signals, and two clear image sensor pixels that generate white image signals. The image sensor may be coupled to processing circuitry that performs filtering operations on the red, blue, and white image signals to increase noise correlations in the image signals that reduce noise amplification when applying a color correction matrix to the image signals. The processing circuitry may extract a green image signal from the white image signal. The processing circuitry may compute a scaling value that includes a linear combination of the red, blue, white and green image signals. The scaling value may be applied to the red, blue, and green image signals to produce corrected image signals having improved image quality.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 4, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Marko Mlinar, Brian Keelan
  • Patent number: 9942527
    Abstract: An image sensor may have an array of image sensor pixels arranged in color filter unit cells each having one red image pixel that generates red image signals, one blue image pixel that generate blue image signals, and two clear image sensor pixels that generate white image signals. The image sensor may be coupled to processing circuitry that performs filtering operations on the red, blue, and white image signals to increase noise correlations in the image signals that reduce noise amplification when applying a color correction matrix to the image signals. The processing circuitry may extract a green image signal from the white image signal. The processing circuitry may compute a scaling value that includes a linear combination of the red, blue, white and green image signals. The scaling value may be applied to the red, blue, and green image signals to produce corrected image signals having improved image quality.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 10, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Marko Mlinar, Brian Keelan
  • Patent number: 9883150
    Abstract: The present technology relates to a solid state imaging device, an imaging device, and an electronic device capable of improving color resolution and luminance resolution, and reducing a false color. White W as a luminance main component is arranged in a checkered pattern. A unit of two green G pixels are arranged in each of rows and columns in a range of 8 pixels×8 pixels to increase uniformity of green G and thereby improve resolution of green G. Moreover, rows and columns containing blue B are separated from rows and columns containing red R to improve resolution. Furthermore, white W, blue B, and red R are arranged to surround isolated point pixels corresponding to lost pixels of white W, blue B, and red R for easy interpolation.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: January 30, 2018
    Assignee: SONY CORPORATION
    Inventor: Isao Hirota
  • Patent number: 9727941
    Abstract: The present disclosure relates generally to digital watermarking for retail product packaging. A digital watermark can be carried in different color channels, and at with different signal polarities. Detection can utilize different illumination sources to highlight signal in one or more channels.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: August 8, 2017
    Assignee: Digimarc Corporation
    Inventors: Kristyn R. Falkenstern, Alastair M. Reed
  • Patent number: 9692992
    Abstract: Embodiments of a color filter array include a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters, and each individual filter in the set having a photoresponse selected from among four different photoresponses. Each minimal repeating unit includes a checkerboard pattern of filters of the first photoresponse, and filters of the second, third, and fourth photoresponses distributed among the checkerboard pattern such that the filters of the second, third, and fourth photoresponses are sequentially symmetric about one or both of a pair of orthogonal axes of the minimal repeating unit.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: June 27, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventor: Donghui Wu
  • Patent number: 9667933
    Abstract: Embodiments of a color filter array include a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters, and each individual filter in the set having a photoresponse selected from among four different photoresponses. Each minimal repeating unit includes a checkerboard pattern of filters of the first photoresponse, and filters of the second, third, and fourth photoresponses distributed among the checkerboard pattern such that the filters of the second, third, and fourth photoresponses are sequentially symmetric about one or both of a pair of orthogonal axes of the minimal repeating unit.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 30, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Donghui Wu, Ping-Hsu Chen
  • Patent number: 9595551
    Abstract: There is provided a solid-state imaging device that includes: colored pixels each including a first photoelectric conversion element and a colored filler; white pixels each including a second photoelectric conversion element and a clear layer; and an interlayer insulating film provided between the first photoelectric conversion element and the colored filter, and between the second photoelectric conversion element and the clear layer. The colored filter is provided on light-entering side of the first photoelectric conversion element. The clear layer is provided on light-entering side of the second photoelectric conversion element. The clear layer has a higher refractive index than a refractive index of the colored filter, and includes an inorganic dielectric film made of a different material from a material of the interlayer insulating film.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: March 14, 2017
    Assignee: SONY CORPORATION
    Inventor: Taichi Natori
  • Patent number: 9503699
    Abstract: The present technique relates to an imaging device and an imaging method, an electronic device, and a program, which are configured to improve an SN ratio by combining addition reading and thin-out reading by signal processing similar to signal processing using thin-out reading. First, as illustrated in the left side of the drawing, G pixel and B pixel, which are sub-colors, of the top row of regions Z1, Z2 are subjected to thin-out reading. Next, for W pixels of the main color arranged in a checkerboard pattern in the regions Z1, Z2, two pixels tied by a straight line in the drawing are subjected to addition reading at the same tone timing. For W pixels of the main color arranged in a checkerboard pattern in regions Z3, Z4, two pixels tied by a straight line in the drawing are also subjected to addition reading at the same tone timing. R and G pixels, which are sub-colors, of the lower stage of the regions Z3, Z4 are read.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: November 22, 2016
    Assignee: Sony Corporation
    Inventors: Shunji Kawaguchi, Isao Hirota, Hideki Shoyama
  • Patent number: 9485441
    Abstract: Disclosed are an image sensor and a camera apparatus having the same. The image sensor includes first to fourth color pixel patterns. Each of the first and fourth color pixel patterns includes a plurality of color pixels, and each of the second and third color pixel patterns includes one of a red pixel and a blue pixel. The camera apparatus not only reproduces 3D image data, but also realize high resolution.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: November 1, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Young Seop Moon
  • Patent number: 9136299
    Abstract: An image capture apparatus that includes an array of color filters for green, red, and magenta colors arranged over a semiconductor substrate in the manner of a primary color Bayer pattern except a magenta color replaces the blue color. Light passing through the magenta color filter is integrated separately in a magenta pixel for a shallow photodiode signal and a deep photodiode signal in a first photodiode and a deeper second photodiode in the substrate, respectively. A mezzanine photodiode may be disposed between the first and second photodiodes and held at a fixed voltage level or reset multiple times during charge integration. A red pixel value for the magenta pixel is a function of the deep photodiode signal and an adjacent red pixel's red pixel signal. A minimum exists in its derivative with respect to the former at a value of the former that varies with the latter.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: September 15, 2015
    Inventor: Hiok Nam Tay
  • Publication number: 20150146053
    Abstract: An imaging device includes: a filter formed of four different filter regions with four different spectral transmittances that three different spectral transmittances having characteristics of a color matching function and a spectral transmittance for extracting metallic black have been linearly transformed thereinto by a linear transformation matrix; and an imaging unit that takes an image of light which has come out from a subject, and has been collected by an optical system, and then has passed through the filter.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Applicant: Ricoh Company, Ltd.
    Inventors: Nobuyuki Satoh, Yasufumi Yamada, Hiroaki Kotera
  • Publication number: 20150109496
    Abstract: A solid-state imaging device includes a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix and a conversion processing unit disposed on a substrate having the pixel array unit thereon. The color filter unit has a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern. The conversion processing unit converts signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement and outputs the converted signals.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 23, 2015
    Inventor: Isao Hirota
  • Patent number: 8988567
    Abstract: A single array of pixels is used to obtain a plurality of different images at different levels of admitted exposure light from a common source level of exposure light. More particularly, first and second matrices of light-admitting elements are deployed in a single camera and disposed relative to focal lens light in front of corresponding first and second matrices of light-sensitive image sensors that are arrayed in a singular focal plane array in the camera and react equally to equal levels of color image information. The respective matrices of light-admitting elements transmit color image information from exposed focal lens light at different levels of brightness to their corresponding matrices of light-sensitive image sensors, wherein first and second images are acquired at the respective different levels of brightness from the respective matrices of the image sensors, and pixel data from the images combined to produce an HDR image.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 24, 2015
    Assignee: International Business Machines Corporation
    Inventors: Derek Kwan, Angela Y. C. Lee
  • Patent number: 8964246
    Abstract: An image forming apparatus includes a control section extracting a color composition of each color ranging from a first to an nth color from input image data, on the color composition of an mth color, the m being 1 to n?1, performing a first and a second gamma corrections correcting a gradation of the color composition respectively based on a gamma curve for the mth color to obtain a first corrected gradation value, and based on a gamma curve for an (m+1)th color to obtain a second corrected gradation value, and interpolating the first and the second corrected gradation values to determine an output value for the color composition, on the color composition of the nth color, correcting a gradation of the color composition based on a gamma curve for the nth color to obtain an output value for the color composition.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: February 24, 2015
    Assignee: Konica Minolta, Inc
    Inventor: Kazuomi Sakatani
  • Patent number: 8947564
    Abstract: A solid-state imaging device includes a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix and a conversion processing unit disposed on a substrate having the pixel array unit thereon. The color filter unit has a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern. The conversion processing unit converts signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement and outputs the converted signals.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: February 3, 2015
    Assignee: Sony Corporation
    Inventor: Isao Hirota
  • Publication number: 20150002707
    Abstract: Embodiments of a color filter array include a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters, and each individual filter in the set having a photoresponse selected from among four different photoresponses. Each minimal repeating unit includes a checkerboard pattern of filters of the first photoresponse, and filters of the second, third, and fourth photoresponses distributed among the checkerboard pattern such that the filters of the second, third, and fourth photoresponses are sequentially symmetric about one or both of a pair of orthogonal axes of the minimal repeating unit.
    Type: Application
    Filed: April 9, 2014
    Publication date: January 1, 2015
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventor: Donghui Wu
  • Patent number: 8922683
    Abstract: According to an aspect of the present invention, the first filters, which correspond to the two or more first colors that contribute to obtaining a brightness signal more than the second colors, are disposed within each pixel line in first direction to the fourth direction of the color filter arrangement, and it is configured so that the ratio of the number of pixels of the first colors corresponding to the first filters is larger than the ratio of the number of pixels of each color of the second colors corresponding to the second filters of two or more colors other than the first colors. Accordingly, the degree of reproducibility of the synchronization processing in a high-frequency wave area can be increased and the aliasing can be suppressed.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 30, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Kenkichi Hayashi, Seiji Tanaka
  • Patent number: 8917327
    Abstract: An actuator is configured to move a sensor array between first and second positions in order to provide color image data and other data with full resolution of the sensor array. In many embodiments, the output resolution of the sensor array for each type of data comprises twice the resolution of the sensor array without movement. The alternating movement of the sensor array between the first and second positions provides output images with decreased artifacts that might otherwise be present without the alternating movement of the sensor array.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 23, 2014
    Assignee: icClarity, Inc.
    Inventor: Magued (aka Fr. Gregory) Bishay
  • Patent number: 8896732
    Abstract: Disclosed are a pixel, a pixel array, a method for manufacturing the pixel array, and an image sensor including the pixel array. The pixel includes a first color filter layer to transmit a visible light and an IR, and a second color filter layer to transmit a light, in which the visible light is blocked, at one side of the first color filter layer.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 25, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Seung Hoon Sa, Jung Chan Kyoung, Dong Gyu Lee, Jong Min You, Hyun Jong Ji, Jung Wan Jeong
  • Publication number: 20140313379
    Abstract: An imaging system may include a camera module with an image sensor having an array of image sensor pixels. The image sensor may include a substrate having an array of photodiodes, an array of microlenses formed over the array of photodiodes, and an array of color filter elements interposed between the array of microlenses and the array of photodiodes. The color filter elements may be separated from each other by color filter barriers. Each color filter barrier may include an upper portion formed from dielectric material and a lower portion formed from metal. The metal portion of each color filter barrier may form a crosstalk reduction structure that prevents stray light from passing from one pixel to an adjacent pixel. The color filter barriers may have a grid shape with an array of openings. The color filter elements may be deposited in the openings.
    Type: Application
    Filed: August 28, 2013
    Publication date: October 23, 2014
    Applicant: Aptina Imaging Corporation
    Inventor: Jeffrey Mackey
  • Patent number: 8866944
    Abstract: A method for correcting pixel information of color pixels on a color filter array of an image sensor includes: establishing an M×M distance factor table, selecting M×M pixels of the color filter array, calculating a red/green/blue-color contribution from the red/green/blue pixels to a target pixel in the selected M×M pixels, calculating a red/blue/green-color pixel performance of the target pixel, calculating a red/blue/green-color correcting factor, obtaining a corrected pixel information of each of the red/green/blue pixels, by applying the red/green/blue-color correcting factor to the measured pixel information of each of the red/green/blue pixels.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 21, 2014
    Assignee: VisEra Technologies Company Limited
    Inventors: Zong-Ru Tu, Wu-Cheng Kuo, Chin-Chuan Hsieh, Yu-Kun Hsiao
  • Patent number: 8866839
    Abstract: A signal adapting chromacity system to control that may include a signal conversion engine to receive a source signal designating a color of light defined by a two spatial plus luminance dimensional color space, such as the xxY color space. The signal conversion engine may convert the source signal to a three dimensional color space defined within a subset gamut of a full color gamut, such as an RGW, RBW, or GBW color space. The subset gamut may include a first color light, a second color light and a high efficacy light. The signal conversion engine may perform a conversion operation to convert the source signal to an output signal, using the output signal to drive light emitting diodes (LEDs). The conversion operation may be a matrix, angular or linear conversion operation.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: October 21, 2014
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine, Ran Zhou, Valerie A. Bastien, Matthew Regan, Eliza Katar Grove, Eric Bretschneider
  • Patent number: 8848074
    Abstract: In a single plate type solid-state image pickup device having a color filter with primary color filters, gray filters are disposed at specific pixels of the arrangement of the primary color filters, whereby variation of the sense of resolution with respect to color can be prevented, and outline emphasis is applied to achieve an excellent image.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: September 30, 2014
    Assignee: Sony Corporation
    Inventor: Shinichiro Saito
  • Patent number: 8823845
    Abstract: A color filter array of an image sensor is disclosed. The color filter array includes a first filter to transmit wavelengths of a first region in a visible light region, a second filter to transmit wavelengths of a second region in the visible light region, a third filter to transmit wavelengths of a third region in the visible light region, and a mixed filter to transmit wavelengths of at least one of the first region, the second region and the third region, and wavelengths of an infrared region at the same time.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 2, 2014
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Tae Chan Kim, Kwang Hyuk Bae, Kyu-Min Kyung
  • Publication number: 20140240557
    Abstract: A solid-state imaging device includes: a semiconductor substrate having a light receiving surface sectioned for red, green, blue, and white pixels arranged in a matrix with photodiodes formed thereon; color filters formed on the semiconductor substrate in light incident paths to the photodiodes of the respective formation regions of the red, green, and blue pixels and respectively transmitting lights in red, green, and blue wavelength regions; and photochromic films formed on the semiconductor substrate in the light incident path to the photodiodes in the formation regions of at least some of the white pixels, and containing a photochromic material having light transmittance varying in response to incident light intensity in a predetermined wavelength region, wherein a half period of the light transmittance of the photochromic films is shorter than one frame as a period in which pixel signals obtained in the pixels are read out with respect to all pixels.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: Sony Corporation
    Inventors: Kyoko Izuha, Kouichi Harada
  • Patent number: 8754968
    Abstract: A solid-state imaging device includes: a semiconductor substrate having a light receiving surface sectioned for red, green, blue, and white pixels arranged in a matrix with photodiodes formed thereon; color filters formed on the semiconductor substrate in light incident paths to the photodiodes of the respective formation regions of the red, green, and blue pixels and respectively transmitting lights in red, green, and blue wavelength regions; and photochromic films formed on the semiconductor substrate in the light incident path to the photodiodes in the formation regions of at least some of the white pixels, and containing a photochromic material having light transmittance varying in response to incident light intensity in a predetermined wavelength region, wherein a half period of the light transmittance of the photochromic films is shorter than one frame as a period in which pixel signals obtained in the pixels are read out with respect to all pixels.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: June 17, 2014
    Assignee: Sony Corporation
    Inventors: Kyoko Izuha, Kouichi Harada
  • Patent number: 8749673
    Abstract: The image generation device generates a new moving picture of a subject based on first and second moving pictures shot with a single-chip color image sensor, which detects two light rays including first and second color components, respectively, to represent the first and second color components of the subject. As the first moving picture has been shot in a longer exposure time than the second moving picture, the first picture has a lower frame rate than the second picture. The image generation device includes: a getting section which gets video signals representing the first and second moving pictures, respectively; a processing section which generates a new moving picture with as high a frame rate as the second moving picture based on the respective video signals representing the first and second moving pictures gotten; and an output section which outputs the new moving picture.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: June 10, 2014
    Assignee: Panasonic Corporation
    Inventors: Taro Imagawa, Takeo Azuma, Sanzo Ugawa, Yusuke Okada
  • Patent number: 8723993
    Abstract: An imaging apparatus and image capture program are provided that enable an image processing section compatible with a Bayer array to be employed without modification even in cases in which an image pickup device is employed that is provided with a color filter of an array other than a Bayer array. An imaging apparatus (10) is equipped with a color filter (30) having repeatedly disposed 6×6 pixel basic array patterns C containing a portion of a Bayer array pattern; and a drive section (22) that drives the image pickup device (14) so as to read pixel data only of pixels at a predetermined position so as to give the same pattern as the Bayer array pattern.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 13, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Kenkichi Hayashi
  • Patent number: 8723995
    Abstract: A digital color imager providing an extended luminance range, an improved color implementation and enabling a method for an easy transformation into another color space having luminance as a component has been achieved. Key of the invention is the addition of white pixels to red, green and blue pixels. These white pixels have either an extended dynamic rang as described by U.S. patent (U.S. Pat. No. 6,441,852 to Levine et al.) or have a larger size than the red, green, or blue pixels used. The output of said white pixels can be directly used for the luminance values Y of the destination color space. Therefore only the color values and have to be calculated from the RGB values, leading to an easier and faster calculation. As an example chosen by the inventor the conversion to YCbCr color space has been shown in detail.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: May 13, 2014
    Assignee: Youliza, Gehts B.V. Limited Liability Company
    Inventors: Detlef Schweng, Taner Dosluoglu, Horst Knoedgen
  • Patent number: 8717464
    Abstract: A camera unit generates a processed digital image by augmenting color image data with infrared image data according to the level of ambient light exposure. The camera has an ambient light sensor that detects the level of ambient light in the camera unit and an image sensor that provides image data. One or more quantum dot layers may be included in the image sensor. A camera controller adapts the camera unit for operation in different modes that are selectable based on the levels of detected ambient light. The image data is processed into a digital image, according to the selected mode of operation for the camera unit, using color image data only when the level of ambient light is high, but augmenting the color image data with infrared image data when the level of ambient light is low to increase the color luminance of the final processed digital image.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: May 6, 2014
    Assignee: BlackBerry Limited
    Inventor: Sui Tong Tang
  • Patent number: 8704920
    Abstract: The present invention relates to a color filter array. The color filter array includes a plurality of pixel arrays, which has four color filters arranged in an array. The color of the neighboring color filters is distinct to each other. Moreover, the pattern of the color filter array has enlarged color filters or extended edges in corners of the pattern. These enlarged color filters or extended edges increase the contact area between the pattern and a substrate that the pattern formed on. Therefore, the adhesion strength between the pattern and the substrate can be augmented to prevent peeling from the substrate. According to the invention, the yield of the product will be raised substantially.
    Type: Grant
    Filed: July 4, 2011
    Date of Patent: April 22, 2014
    Assignee: United Microelectronics Corp.
    Inventor: Chung-Jung Hsu
  • Publication number: 20140071317
    Abstract: An image pickup apparatus disclosed in this application includes: a lens optical system (L) including a first optical region and a second optical region; an image pickup device (N) including at least a plurality of first pixels and a plurality of second pixels where light transmitted through the lens optical system (L) enters; an area segmented optical attenuator device (W) including a first light control part and a second light control part, which are located in the first optical region and the second optical region, respectively; a control section (V) for changing at least one of a transmittance of the first light control part of the area segmented optical attenuator device and a transmittance of the second light control part of the area segmented optical attenuator device; and an array-patterned optical device (K), which is placed between the lens optical system and the image pickup device, for causing light transmitted through the first optical region to enter the plurality of first pixels and causing lig
    Type: Application
    Filed: February 1, 2013
    Publication date: March 13, 2014
    Inventors: Michihiro Yamagata, Norihiro Imamura, Tsuguhiro Korenaga
  • Publication number: 20140055649
    Abstract: This solid-state image sensor includes a photosensitive cell array including first through fourth photosensitive cells 2a to 2d and a light dispersing element array that is arranged to face the photosensitive cell array and that includes first and second types of light dispersing elements 1a, 1b.
    Type: Application
    Filed: December 18, 2012
    Publication date: February 27, 2014
    Applicant: Panasonic Corporation
    Inventors: Masao Hiramoto, Tatsuya Nakamura, Toshiya Fujii
  • Patent number: 8582007
    Abstract: The image sensor includes a pixel array including a plurality of pixels arranged in a non-red-green-blue (RGB) Bayer pattern, an analog-to-digital converter configured to convert an analog pixel signal output from each of the pixels into a digital pixel signal, and an RGB converter configured to convert the digital pixel signal into an RGB Bayer signal. Accordingly, the image sensor is compatible with a universal image signal processor (ISP), which receives and processes RGB Bayer signals, without an additional compatible device or module.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: November 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bum Suk Kim, Jung Chak Ahn, Tae Sub Jung
  • Patent number: 8576313
    Abstract: Color filter arrays or mosaics are provided for imaging a scene with diffraction limited optics. A distribution of color types in a color filter array is biased toward smaller wavelengths to avoid or reduce loss of spatial resolution information at higher wavelengths due to a larger extent of diffraction at the higher wavelengths. Demosaicing methods for reconstructing a partial or full color image from raw image data involve applying correction factors to account for diffraction. The correction factors are based on pixel size and/or a measure of the extent of diffraction (e.g., an Airy disk diameter) for each wavelength in the color filter array.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: November 5, 2013
    Assignee: The Invention Science Fund I, LLC
    Inventor: Nathan P. Myhrvold
  • Publication number: 20130286260
    Abstract: A solid-state imaging device includes a color filter unit disposed on a pixel array unit including pixels two-dimensionally arranged in a matrix and a conversion processing unit disposed on a substrate having the pixel array unit thereon. The color filter unit has a color arrangement in which a color serving as a primary component of a luminance signal is arranged in a checkerboard pattern and a plurality of colors serving as color information components are arranged in the other area of the checkerboard pattern. The conversion processing unit converts signals that are output from the pixels of the pixel array unit and that correspond to the color arrangement of the color filter unit into signals that correspond to a Bayer arrangement and outputs the converted signals.
    Type: Application
    Filed: March 20, 2013
    Publication date: October 31, 2013
    Inventor: Isao Hirota
  • Patent number: 8555328
    Abstract: Information provisioning includes acquiring one of an audio and a video elementary stream of content that is composed of a plurality of segments, and actual data of metadata that includes information related to the content. The metadata is divided into metadata processing units (MPU) corresponding to segments subjected to processing in the plurality of segments. A transport stream of a MPEG-2 system is generated that includes packetized elementary stream (PES) packets acquired by packetizing the segments of the data stream and metadata PES packets acquired by packetizing at least one MPU.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventor: Koichi Emura
  • Patent number: 8547391
    Abstract: A signal adapting chromacity system to control that may include a signal conversion engine to receive a source signal designating a color of light defined by a two spatial plus luminance dimensional color space, such as the xxY color space. The signal conversion engine may convert the source signal to a three dimensional color space defined within a subset gamut of a full color gamut, such as an RGW, RBW, or GBW color space. The subset gamut may include a first color light, a second color light and a high efficacy light. The signal conversion engine may perform a conversion operation to convert the source signal to an output signal, using the output signal to drive light emitting diodes (LEDs). The conversion operation may be a matrix, angular or linear conversion operation.
    Type: Grant
    Filed: May 15, 2011
    Date of Patent: October 1, 2013
    Assignee: Lighting Science Group Corporation
    Inventors: Fredric S. Maxik, Robert R. Soler, David E. Bartine, Ran Zhou, Valerie A. Bastien, Matthew Regan, Eliza Katar Grove, Eric Bretschneider
  • Publication number: 20130242148
    Abstract: An image sensor may have art array of image sensor pixels arranged in color filter unit cells each having one red image pixel that generates red image signals, one blue image pixel that generate blue image signals, and two clear image sensor pixels that generate white image signals. The image sensor may be coupled to processing circuitry that performs filtering operations on the red, blue, and white image signals to increase noise correlations in the image signals that reduce noise- amplification when applying a color correction matrix to the-image signals. The processing circuitry may extract a green image signal from the white image signal. The processing circuitry may compute a scaling value that includes a linear combination of the red, blue, white and green image signals. The scaling value may be applied to the red, blue, and green image signals to produce corrected, image signals having improved image quality.
    Type: Application
    Filed: January 8, 2013
    Publication date: September 19, 2013
    Applicant: Aptina Imaging Corporation
    Inventors: Marko Mlinar, Brian Keelan
  • Patent number: 8525905
    Abstract: According to one embodiment, in a solid-state imaging device having color pixels in which color filters are arranged for respective pixels, two blocks of two pixels in the row direction×two pixels in the column direction of an X1 color are arranged on one diagonal line, and a block of two pixels in the row direction×two pixels in the column direction of one of an X2 color and an X3 color and a block of two pixels of the other color and two pixels of an X4 color arranged diagonally are arranged on the other diagonal line, and magnitudes of wavelengths satisfy the following relationship: X3 color<X1 color<X4 color<X2 color.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 3, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takayuki Ogasahara
  • Patent number: 8519319
    Abstract: A physical information acquisition method in which a corresponding wavelength region of visible light with at least one visible light detection unit coupled to an image signal processing unit is detected, each said visible light detection unit comprising a color filter adapted to transmit the corresponding wavelength region of visible light; a wavelength region of infrared light with at least one infrared light detection unit coupled to the image signal processing unit is detected; and, with the signal processing unit, a first signal received from the at least one visible light detection unit by subtracting a product from said first signal is corrected, said product resulting from multiplication of a second signal received from the at least one infrared light detection unit and a predetermined coefficient factor.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: August 27, 2013
    Assignee: Sony Corporation
    Inventors: Atsushi Toda, Genta Sato
  • Patent number: 8471936
    Abstract: The present invention provides an imaging device that generates, for each of a red color, a green color, and a blue color, an image signal having pixels arranged adjacent to each other in a two-dimensional array, including a red color imaging element that senses incident light to output a red color signal (20R) having pixels arranged in a check pattern, a green color imaging element that senses the incident light to output a green color signal (20G) having pixels arranged in a check pattern, a blue color imaging element that senses the incident light to output a blue color signal (20B) having pixels arranged in a check pattern, interpolation means for interpolating a blank pixel using neighboring pixels, and correlation means for determining a correlation of the neighboring pixels of the blank pixel, wherein the correlation means determines a correlation for each of the red color signal, the green color signal, and the blue color signal on the basis of at least one color signal of the red color signal, the gr
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: June 25, 2013
    Assignee: Sony Corporation
    Inventors: Li Ming, Ryota Kosakai, Akira Matsui
  • Patent number: 8466975
    Abstract: An image pickup device may include a sensor array including a plurality of pixels and an actuator operatively connected to the sensor array. The actuator may be configured to sequentially move the sensor array, in a horizontal or vertical direction by one pixel pitch, in response to a control signal. A method of processing image signals using an image pickup device may include moving the plurality of pixels by the one pixel pitch using the actuator in order to allow multiple pixels to be sequentially located at a position on which light is incident, and sequentially detecting color component signals of each of the multiple pixels from the incident light.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: June 18, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong Ki Min, Hoon Sang Oh
  • Patent number: 8462238
    Abstract: The present invention aims to capture two images simultaneously in the visible part of the spectrum and a NIR image. This is achieved through a camera for simultaneously capturing a visible and near-infrared image by at least a sensor producing sensor response data and having at least one color filter array (CFA) comprising at least four different filters, said color filter array having visible and near-infrared light filters, and said camera comprising means to obtain a visible image while using the sensor response data from the visible part of the spectrum and a NIR image using the sensor response data from the near-infrared part of the spectrum.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: June 11, 2013
    Assignee: Ecole Polytechnique Fëdërale de Lausanne (EPFL)
    Inventors: Clément Fredembach, Yue Lu, Sabine Süsstrunk
  • Patent number: 8446499
    Abstract: An image capturing apparatus includes an infrared cutoff filter, an image capturing device having a plurality of pixels for detecting light transmitted through the infrared cutoff filter, and four optical filters disposed on a light-detecting surface of the image capturing device. The four optical filters include a first filter for transmitting light having a wavelength longer than a first wavelength, a second filter for transmitting light having a wavelength longer than a second wavelength, a third filter for transmitting light having a wavelength longer than a third wavelength, and a fourth filter for transmitting light having a wavelength longer than a fourth wavelength. The infrared cutoff filter transmits light having a wavelength shorter than a fifth wavelength. A processor calculates blue-, green-, red-, and infrared-component pixel signals from pixel signals that are produced by the pixels of the image capturing device.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: May 21, 2013
    Assignee: Honda Motor Co., Ltd.
    Inventor: Tomoyuki Kamiyama