With Three Or More Colors Patents (Class 348/277)
  • Patent number: 10871672
    Abstract: This disclosure provides a display panel, a production method, and a display apparatus. The display panel comprises a first substrate, a second substrate, and a liquid crystal layer provided between the first substrate and the second substrate. The first substrate is provided with a black matrix, and the second substrate is provided oppositely to the first substrate and is provided with a light-shielding layer pattern. A surface of the light-shielding layer pattern has a light-reflecting property, and a projection of at least a part of the light-shielding layer pattern on the second substrate extends beyond a projection of the black matrix on the second substrate.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: December 22, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.
    Inventors: Zifeng Wang, Fengguo Wang, Dawei Shi
  • Patent number: 10840398
    Abstract: A photoelectric conversion element includes: a first compound semiconductor layer 31 made of a first compound semiconductor material having a first conductivity type; a photoelectric conversion layer 34 formed on the first compound semiconductor layer 31; a second compound semiconductor layer 32 covering the photoelectric conversion layer 34 and made of a second compound semiconductor material having the first conductivity type; a second conductivity type region 35 formed at least in a part of the second compound semiconductor layer 32, having a second conductivity type different from the first conductivity type, and reaching the photoelectric conversion layer; an element isolation layer 34 surrounding a lateral surface of the photoelectric conversion layer; a first electrode 51 formed on the second conductivity type region; and a second electrode 52 electrically connected to the first compound semiconductor layer 31.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: November 17, 2020
    Assignee: Sony Corporation
    Inventors: Shuji Manda, Atsushi Okuyama, Ryosuke Matsumoto
  • Patent number: 10553632
    Abstract: The present disclosure provides a photoelectric detection device and a photoelectric detection apparatus. The photoelectric detection device includes a substrate, a reflective structure provided on the substrate and a photoelectric conversion layer provided on the reflective structure, and has a plurality of pixel regions and a plurality of interval regions each provided between two adjacent pixel regions. The photoelectric conversion layer includes a pixel photoelectric conversion portion in the pixel region; the reflective structure includes a pixel reflective portion in the pixel region and an interval reflective portion in the interval region, and the interval reflective portion is configured to reflect light directed to the interval reflective portion from the pixel photoelectric conversion portion back to the pixel photoelectric conversion portion.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: February 4, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhanjie Ma
  • Patent number: 10535687
    Abstract: The present technology relates to a solid-state imaging device that can achieve a higher resolution while increasing sensitivity. In a pixel array unit, pixels are formed with a combination of a first pixel that performs photoelectric conversion on light of a first color component with a first photoelectric conversion unit, and photoelectric conversion on light of a third color component with a second photoelectric conversion unit; a second pixel that performs photoelectric conversion on light of the first color component with a first photoelectric conversion unit, and on light of a fifth color component with a second photoelectric conversion unit; and a third pixel that performs photoelectric conversion on light of the first color component with a first photoelectric conversion unit, and on light of a sixth color component with a second photoelectric conversion unit. The first color component and the sixth color component are mixed, to generate white (W).
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 14, 2020
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Kenji Azami, Yusuke Otake, Toshifumi Wakano
  • Patent number: 10404952
    Abstract: An image sensor device and a signal processing method thereof are provided. The image sensor includes a plurality of pixels, and at least one pixel of the plurality of pixels includes a micro lens, a filter which includes a first area for filtering a first color signal from a light signal transmitted through the micro lens, and a second area for filtering a second color signal from the transmitted signal, and a first photodiode for converting the first color signal into an electric signal, and a second photodiode for converting the second color signal into an electric signal.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: September 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youngkwon Yoon, Hwayong Kang, Dongsoo Kim, Moonsoo Kim
  • Patent number: 10257394
    Abstract: The invention provides methods for broadcasting video in a dual HDR/LDR format such that the video can be displayed in real time by both LDR and HDR display devices. Methods and devices of the invention process streams of pixels from multiple sensors in a frame-independent manner to produce an HDR video signal in real time. That HDR video signal is then tone-mapped to produce an LDR video signal, the LDR signal is subtracted from the HDR signal to calculate a residual signal, and the LDR signal and the residual signal are merged into a combined signal that is broadcast via a communications network.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: April 9, 2019
    Assignee: Contrast, Inc.
    Inventors: Willie Chris Kiser, Nora Tocci, Michael D. Tocci
  • Patent number: 9473693
    Abstract: A photographing apparatus has a body portion to which a lens portion is mountable and to which an image forming luminous flux is conducted from the lens portion, and the photographing apparatus includes an image pickup device having pixels for image pickup and pixels for focus detection, a storage section that retains information of sensitivity characteristics of the pixels for focus detection, and a control amount calculation section that obtains information about an incident angle and an angular range of the image forming luminous flux from the lens portion and calculates information for focus control based on the obtained information and information read from the storage section. The focus control of high precision is enabled with simple configuration, irrespective of a lens system.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: October 18, 2016
    Assignee: Olympus Corporation
    Inventors: Kazumi Ito, Keigo Matsuo
  • Patent number: 9293102
    Abstract: A display may have an array of pixels arranged in rows and columns. Each pixel may have a transistor for controlling the amount of output light associated with that pixel. The transistors may be thin-film transistors having active areas, first and second source-drain terminals, and gates. Gate lines may be used to distribute gate control signals to the gates of the transistors in each row. Data lines that run perpendicular to the gate lines may be used to distribute image data along columns of pixels. The gate lines may be connected to gate line extensions that run parallel to the data lines. The data lines may each overlap a respective one of the gate line extensions. Vias may be used to connect the gate line extensions to the gate lines. The gate line extensions may all have the same length.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: March 22, 2016
    Assignee: Apple, Inc.
    Inventors: Hao-Lin Chiu, Byung Duk Yang, Chun-Yao Huang, Kyung Wook Kim, Shih Chang Chang, Szu-Hsien Lee
  • Patent number: 9219896
    Abstract: A method of color processing includes providing a color and white filter array placed over an image sensor, thereby generating converted color and white signals; interpolating the converted white signals to generate interpolated white signals; interpolating white-chroma differences between the converted color signals and the converted white signals to generate interpolated white-chroma difference signals; and transforming the interpolated white signal and the interpolated white-chroma difference signals into a color space, thereby generating transformed color signals.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: December 22, 2015
    Assignee: HIMAX IMAGING LIMITED
    Inventor: MiaoHong Shi
  • Patent number: 9184195
    Abstract: According to a color imaging element and an imaging device of the present invention, it is possible to simplify processing in a subsequent stage compared to the case of a random array, improve reproduction precision of de-mosaic processing in a high frequency range, facilitate de-mosaic processing as a result of increase in types of peripheral colors, discern a direction with high correlation between a horizontal direction and a vertical direction, and suppress aliasing upon de-mosaic processing.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: November 10, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kenkichi Hayashi, Seiji Tanaka, Noriko Kawamura
  • Patent number: 9147707
    Abstract: According to a color imaging element and an imaging device of the present invention, it is possible to simplify processing in a subsequent stage compared to the case of a random array, improve reproduction precision of de-mosaic processing in a high frequency range, facilitate de-mosaic processing as a result of increase in types of peripheral colors, discern a direction with high correlation between a horizontal direction and a vertical direction, and suppress aliasing upon de-mosaic processing.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: September 29, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Kenkichi Hayashi, Seiji Tanaka, Noriko Kawamura
  • Publication number: 20150116554
    Abstract: In the color imaging element and the imaging device according to an aspect of the present invention, a basic array pattern is repeatedly placed in a first direction and in a second direction, the basic array pattern includes four or more rectangular patterns each corresponding to 3×2 pixels each composed of a first filter, a color filter array includes therein grating filter lines surrounding the four directions of the rectangular pattern, the color filter array includes therein the first filters each disposed in each line in the first direction, in the second direction, in a third direction, and in a fourth direction, and the basic array pattern includes therein one or more second filters of each color, each disposed in each line in the first direction in the second direction.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 30, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Seiji TANAKA, Kenkichi HAYASHI, Noriko KAWAMURA
  • Publication number: 20150109493
    Abstract: A color filter array of a color imaging element is formed with a basic array pattern repeatedly disposed in a horizontal direction and a vertical direction. The basic array pattern is formed with RGB filters arrayed in an array pattern corresponding to 5×5 pixels in the horizontal direction and the vertical direction. A ratio of all pixel numbers of a G pixel is made larger than a ratio of a pixel number of each color of RB. The G filter is disposed in each line in the horizontal, vertical and oblique directions of the color filter array. One or more R and B filters are disposed in each filter line in the horizontal and vertical directions of the color filter array in the basic array pattern. Filters of different colors are adjacently disposed in each of the horizontal, vertical and oblique directions of the R and B filter.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Kenkichi HAYASHI, Seiji TANAKA
  • Publication number: 20150109492
    Abstract: According to a color imaging element and an imaging device of the present invention, it is possible to simplify processing in a subsequent stage compared to the case of a random array, improve reproduction precision of de-mosaic processing in a high frequency range, facilitate de-mosaic processing as a result of increase in types of peripheral colors, discern a direction with high correlation between a horizontal direction and a vertical direction, and suppress aliasing upon de-mosaic processing.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Kenkichi HAYASHI, Seiji TANAKA, Noriko KAWAMURA
  • Publication number: 20150109494
    Abstract: A color filter array of a color imaging element includes a basic array pattern P of 4×4 pixels in which RGB filters corresponding to red (R), green (G) and blue (B) are arrayed, this basic array pattern P is repeatedly disposed in a horizontal direction and a vertical direction, a G filter is disposed in each pixel line in four directions of horizontality, verticality, oblique upper right and oblique lower right, and R and B filters are disposed in each pixel line in the horizontal direction and vertical direction of the color filter array. Moreover, the color filter array includes consecutive first filters of two or more pixels in four directions of horizontality, verticality, oblique upper right and oblique lower right.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Seiji TANAKA, Kenkichi HAYASHI
  • Publication number: 20150109495
    Abstract: A color filter array is configured with a 3×3 basic array pattern repeatedly disposed in a horizontal and a vertical direction. The basic array pattern is configured with a G filter array formed by disposing a G filter in the horizontal direction, and first and the second RGB filter arrays formed by disposing RGB filters in the horizontal direction. The ratio of the pixel number of the G color is made larger than the ratio of the pixel number of each color of RB. The G filter is disposed in each filter line in the horizontal, vertical and oblique directions of the color filter array. The RB filters are each disposed in one filter line in the vertical direction of the basic array pattern, and any of the RB filters is disposed in other filter lines.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Applicant: FUJIFILM CORPORATION
    Inventors: Seiji TANAKA, Kenkichi HAYASHI
  • 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: 8982253
    Abstract: A single-plate color imaging element where an array of the color filters includes a basic array pattern of M×N provided with first filters corresponding to a first color with one or more colors and second filters corresponding to a second color with two or more colors with contribution ratios for obtaining luminance signals lower than the first color, the first filters are arranged in a check pattern shape in the basic array pattern, one or more second filters corresponding to each color of the second color are arranged in each line in the horizontal and vertical directions of the array of the color filters in the basic array pattern, and a proportion of the number of pixels of the first color corresponding to the first filters is greater than a proportion of the number of pixels of each color of the second color corresponding to the second filters.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: March 17, 2015
    Assignee: FUJIFILM Corporation
    Inventors: Tomoyuki Kawai, Kenkichi Hayashi, Seiji Tanaka
  • Patent number: 8981278
    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: June 25, 2013
    Date of Patent: March 17, 2015
    Assignee: Sony Corporation
    Inventors: Atsushi Toda, Genta Sato
  • Patent number: 8953058
    Abstract: A 9 pixel-by-9 pixel working window slides over an input Bayer image. For each such window, a demosaicing operation is performed. For each such window, corrective processing is performed relative to that window to produce relative differences for that window. For each such window for which relative differences have been produced, those relative differences are regulated. For each window, a maximum is found for that window's regulated relative differences; in one embodiment of the invention, this maximum is used to select which channel is sharp. For each window, the colors in that window are corrected based on the relative difference-based maximum found for that window. For each window, edge oversharpening is softened in order to avoid artifacts in the output image. The result is an output image in which axial chromatic aberrations have been corrected.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: February 10, 2015
    Assignee: Fotonation Limited
    Inventors: Eyal Ben-Eliezer, Tomer Schwartz, Ehpraim Goldenberg, Noy Cohen
  • Patent number: 8934034
    Abstract: Generalized assorted pixel camera systems and methods are provided. In accordance with some embodiments, the generalized assorted pixel camera systems include a color filter array, where the color filter array includes a plurality of primary filters and a plurality of secondary filters. Each filter has a particular spectral response and each filter is formed on a corresponding pixel of a plurality of pixels. Each of the plurality of primary filters and the plurality of secondary filters enhances an attribute of image quality and the information obtained using the plurality of primary filters and the plurality of secondary filters is used to balance spectral resolution, dynamic range, and spatial resolution for generating an image of a plurality of image types.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 13, 2015
    Assignees: The Trustees of Columbia University in the City of New York, Sony Corporation
    Inventors: Shree K Nayar, Fumihito Yasuma, Tomoo Mitsunaga
  • Patent number: 8902153
    Abstract: A color display has continuous areas of a single color covering a plurality of sub-pixel electrodes. Each sub-pixel of a given color has sub-pixels of the same given color disposed along at least two of its adjacent edges. Each area of a single color may cover a 2×2 array of sub-pixel electrodes. The colors used may be red/green/blue/white (RGBW), red/green/blue/yellow (RGBY), or orange/lime/purple/white.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: December 2, 2014
    Assignee: E Ink Corporation
    Inventors: Alain Bouchard, Thomas H. Whitesides, Michael D. Walls, Steven P. Dudek
  • Patent number: 8896744
    Abstract: According to one embodiment, a solid-state imaging device includes a pixel array and an infrared light eliminating portion. The pixel array has a plurality of pixel cells arranged as being array-shaped. The pixel array detects a signal level of each color light as being shared for each pixel cell. The infrared light eliminating portion eliminates infrared light from light proceeding toward a photoelectric conversion element. The infrared light eliminating portion is arranged for each pixel cell. The infrared light eliminating portion has selection wavelength being set in accordance with color light to be a detection target of the pixel cell.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: November 25, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takayuki Ogasahara, Risako Ueno
  • Patent number: 8850714
    Abstract: A chromaticity correction device corrects chromaticity of a video signal displayed on a display panel of a display device to correspond to a change in a luminance value of the display panel. The chromaticity correction device includes a luminance detection unit which detects the luminance value, a backlight driving level detection unit which detects a backlight driving level, a temperature detection unit which detects an internal device temperature or an ambient temperature, a reference luminance value calculation unit which estimates a reference luminance value in a characteristic of an initial state, a chromaticity calculation unit which obtains a chromaticity change amount of white point chromaticity and estimated white point chromaticity that is an estimated value of current white point chromaticity, a chromaticity correction value calculation unit which obtains a chromaticity correction value and a chromaticity correction circuit which corrects the chromaticity of the video signal.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: October 7, 2014
    Assignee: NEC Display Solutions, Ltd.
    Inventor: Katsuyuki Matsui
  • Patent number: 8848073
    Abstract: A solid-state imaging device includes: an R pixel provided with an R filter for transmitting red-color light; a B pixel provided with a B filter for transmitting blue-color light; an S1 pixel which is provided with an S1 filter with a visible light transmittance independent of wavelengths in a visible light region and has a sensitivity higher than that of the R pixel; and an S2 pixel which is provided with an S2 filter with a visible light transmittance independent of wavelengths in the visible light region and lower than the visible light transmittance of the S1 filter and has a sensitivity lower than the sensitivity of the S1 pixel.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: September 30, 2014
    Assignee: Sony Corporation
    Inventor: Taichi Natori
  • Publication number: 20140267848
    Abstract: An image sensor includes a first pixel and a second pixel. The first pixel includes a first light sensitive element, a first light filter, and a first microlens. The second pixel is disposed adjacent to the first pixel and includes a second light sensitive element, a second light filter, and a second microlens. The first pixel is configured to direct at least some of the light received at the first microlens to the second light sensitive element of the second pixel to increase optical crosstalk so as to reduce color aliasing.
    Type: Application
    Filed: March 25, 2013
    Publication date: September 18, 2014
    Applicant: OMNIVISION TECHNOLOGIES, INC.
    Inventor: Raymond Wu
  • Patent number: 8810697
    Abstract: In an image pickup element, basic array patterns are repeatedly arranged in a horizontal direction and a vertical direction, each of the basic array patterns being made of I×J color filters, the color filters of each of three or more colors being arrayed in a mixed state, an arrangement cycle (I×J) of a basic array pattern is different from an arrangement cycle (2×2) of a sharing configuration pattern, the basic array pattern includes at least one same-color square array pattern which is made of 2×2 color filters of a same color respectively arranged on the 2×2 pixels of the sharing configuration pattern, a characteristic information storage unit stores information on sensitivity calculated from output values of the 2×2 pixels, and a control unit and a digital signal processing unit correct a sensitivity difference between all the pixels of the image pickup element with use of the information on the sensitivity.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: August 19, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Tomoyuki Kawai
  • Patent number: 8804012
    Abstract: Provided are an apparatus and method for executing sensitivity difference correction processing of an image signal, which is generated by a single plate-type image sensor through a color filter. The sensitivity difference correction is executed for Gr and Gb signals included the image signal, for example, an RGB signal, which is generated by the single plate-type image sensor through the color filter. A pixel value of a color filter unit which has the same color as a correction target pixel and is present in surroundings of the correction target pixel is acquired. An additional value is calculated by adding a difference between weighted mean pixel values “a” and “b” of two kinds of pixel groups “A” and “B” classified according to positions of pixels to the pixel value of the correction target pixel in which the weighted mean values correspond to distances of the pixel groups from the correction target pixel.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: August 12, 2014
    Assignee: Sony Corporation
    Inventors: Shun Kaizu, Yoshikuni Nomura
  • Patent number: 8804016
    Abstract: An image pickup device includes: a color filter having repeatedly disposed basic array patterns configured with first and second array patterns disposed symmetrically about a point, wherein the first array pattern has a first filter placed at the 4 corner and center pixels of a 3×3 pixel square array, a second filter placed in a line at the horizontal direction center of the square array, and a third filter placed in a line at the vertical direction center of the square array, and the second array pattern has the same placement of the first filter as the first array pattern and has placement of the second filter and placement of the third filter swapped over to that of the first array pattern; and phase difference detection pixels placed at positions corresponding to the first filter at a top and bottom edge sides in the array pattern.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: August 12, 2014
    Assignee: FujiFilm Corporation
    Inventors: Kenkichi Hayashi, Hiroshi Endo, Noriko Kawamura, Takashi Aoki, Kazuki Inoue
  • Patent number: 8804014
    Abstract: An imaging device includes an imagine lens, an imaging sensor having a color filter array with color filters of a plurality of colors having a plurality of pixels which are arranged on a light-receiving surface, a computing section obtaining a pixel value of an objective pixel by adding pixel values of a plurality of adjacent pixels which are adjacent to the objective pixel and which have one of the color filters of same color as the objective pixel among pixel values output from the imaging sensor, and a control section making the computing section compute, while shifting the objective pixel one by one in one direction, a pixel row formed of pixel values of the objective pixel in the one direction with respect to each predetermined pixel width in other direction, and generating an image thinned out at the predetermined pixel width in the other direction.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: August 12, 2014
    Assignee: Nikon Corporation
    Inventor: Hideaki Kera
  • Patent number: 8786741
    Abstract: A digital camera system having at least two independent digital cameras, which capture image signals in different narrow-band spectral ranges, wherein each of the at least two independent digital cameras comprises at least one separate two-dimensional digital image sensor, preferably a CCD sensor or a CMOS sensor, and at least one filter element corresponding to the particular narrow-band spectral range connected upstream of the at least one two-dimensional digital image sensor and having at least one filter region. The at least one color filter element additionally comprises at least one neutral region, which is translucent in a spectral range that includes at least the different narrow-band spectral ranges of the at least two independent digital cameras, in particular in a panchromatic spectral range, and which is assigned to at least one specific neutral, in particular unused, pixel region of the associated at least one two-dimensional digital image sensor.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: July 22, 2014
    Assignee: Leica Geosystems AG
    Inventors: Martin Timm, Martin Welzenbach
  • Patent number: 8780239
    Abstract: In an aspect of the present invention, only by storing the first correction coefficients corresponding to the colors of the color filters of the image pickup element and the second correction coefficients corresponding to the relative positions of the pixels to the position of the specific circuit element of the image pickup element, in the storage device, an adequate combination of the first correction coefficients and the second correction coefficients is selected for each pixel, and a calculation with it is performed with respect to the signal value of each of the pixels. Therefore, with an essential minimum number of correction coefficients, it is possible to quickly and accurately correct the variation in signal values caused by the color array for the color filters of the image pickup element and the variation in signal values caused by the structure in which multiple pixels share the specific circuit element.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: July 15, 2014
    Assignee: FUJIFILM Corporation
    Inventor: Hayato Yamashita
  • Patent number: 8767088
    Abstract: A white balancing method includes capturing an original image with red (R), green (G) and blue (B) color channels; computing and converting the R, G and B color channels into original color histogram; stretching the original color histograms over the entire grayscale width from 0 to 255 values; and adjusting a color of the original image based on the stretched color histograms to obtain a white balanced image. In the computing and converting the original color histograms, a sampling length follows a formula of spanm=min{(2h, H), (2w, W)}, wherein h=[log2 H]+1, w=[log2 W]+1, H represents a height of the original image, W represents a width of the original image, [ ] is the Gaussian symbol, ( ) is greatest common divisor function, and min{ } means selecting the minimum value. An image capturing device using the white balancing method is also provided.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: July 1, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Kuo-Hung Lin
  • 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: 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: 8711257
    Abstract: A color filter array of a color imaging device is formed by repeatedly arranging a basic array pattern in which RGB filters are arrayed in an array pattern of 8×12 pixels, in a horizontal direction and a vertical direction. The basic array pattern is arranged in a matrix manner in the horizontal direction and/or the vertical direction and includes A array to D array having an array pattern of 4×4 pixels. In each of arrays, G filters are arranged in a checkered pattern and the arrangements of G filters have a mirror image relationship between arrays that are adjacent to each other.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: April 29, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Tomoyuki Kawai, Kenkichi Hayashi, Seiji Tanaka
  • Publication number: 20140098268
    Abstract: An image coding apparatus for coding RAW data of an image of a Bayer array separates the RAW data respectively into separate planes of data of a plurality of color components constituting the Bayer array, determines a coding method for coding each plane from a plurality of coding methods, generates a coding parameter on the basis of the determined coding method, and codes each plane on the basis of the generated coding parameter, wherein when a coding-target plane is a plane to be coded later among the plurality of planes of the same color, a coding parameter for coding the plane to be coded later is generated by using a result of the coding of the plane to be coded earlier among the plurality of planes of the same color.
    Type: Application
    Filed: September 23, 2013
    Publication date: April 10, 2014
    Inventor: Shigeki Mochizuki
  • Publication number: 20140063300
    Abstract: Imaging systems may include an image sensor and processing circuitry. An image sensor may include a pixel array having rows and columns. The array may include short and long-exposure groups of pixels arranged in a zig-zag pattern. The short-exposure group may generate short-exposure pixel values in response to receiving control signals from control circuitry over a first line and the long-exposure group may generate long-exposure pixel values in response to receiving control signals from the control circuitry over a second line. The processing circuitry may generate zig-zag-based interleaved high-dynamic-range images using the long and short-exposure pixel values. If desired, the array may include short and long-exposure sets of pixels located in alternating single pixel rows. The processing circuitry may generate single-row-based interleaved high-dynamic-range images using pixel values generated by the short and long-exposure sets.
    Type: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Applicant: Aptina Imaging Corporation
    Inventors: Peng Lin, Marko Mlinar
  • Patent number: 8648943
    Abstract: A solid-state imaging device is provided. The solid-state imaging device includes a plurality of arrayed pixels, an optical inner filter layer, and a light-blocking side wall. The plurality of arrayed pixels each includes a photoelectric conversion portion and a pixel transistor. The optical inner filter layer is provided for blocking infrared light and formed facing to a light-receiving surface of the photoelectric conversion portion of a desired pixel among the arrayed pixels. The light-blocking side wall is formed on a lateral wall of the optical inner filter layer.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 11, 2014
    Assignee: Sony Corporation
    Inventor: Hironori Godaiin
  • Patent number: 8638378
    Abstract: An image-capturing apparatus includes a pixel array including pixels. Each of the pixels includes a transducer for generating signal charge according to the intensity of an incident light beam. The image-capturing apparatus further includes an output circuit for outputting a pixel signal outside the pixel array at a frame rate depending on the pixel position in the pixel array, based on the signal charge; and an output-controlling unit for controlling the operation of the output circuit.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: January 28, 2014
    Assignee: Sony Corporation
    Inventor: Toshinobu Sugiyama
  • Patent number: 8634002
    Abstract: An image processing device includes an input unit which inputs image data that is generated by an imaging element including specific pixels, first image generation pixels that are the image generation pixels adjacent to the specific pixels, and second image generation pixels that are the image generation pixels not adjacent to the specific pixels, and includes a luminance value generated by each of the pixels, and a color mixture correction unit which corrects color mixture such that a change value of luminance caused by light leaked from the specific pixels to the first image generation pixels is calculated based on luminance values of each of specific pixels adjacent to the first image generation pixels and correction of color mixture to the first image generation pixels caused by the leaked light is performed.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: January 21, 2014
    Assignee: Sony Corporation
    Inventor: Mitsuaki Kita
  • Patent number: 8624997
    Abstract: An image sensor includes an array of light sensitive elements and a filter array. Each filter element is in optical communication with a respective light sensitive element. The image sensor receives filtered light having a repeating pattern. Light sensitive elements in at least two successive rows alternately receive light having a first color and a second color, and light sensitive elements in common columns of the successive rows alternately receive light having the first color and the second color. Light sensitive elements in at least two additional successive rows alternately receive light having a third and a fourth color, and light sensitive elements in common columns of the additional successive rows alternately receive light having the third color and the fourth color. Output values of pairs of sampled light sensitive elements receiving light of a common color and from successive rows are combined to generate a down-sampled image.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: January 7, 2014
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jiangtao Kuang, Donghui Wu, Jizhang Shan
  • Patent number: 8614755
    Abstract: A camera 200 comprises an image pickup element 107 which has imaging pixels performing a photoelectric conversion of an object image formed by a light beam emitted from an image pickup optical system and focus detection pixels performing a photoelectric conversion of two images formed by two divided light beams, a focus detector which obtains first and second pairs of image signals having optical base lengths different from each other from the focus detection pixels, a selector which selects one of the first and second pairs of image signals based on at least one correlation amount of the first and second pairs of image signals, and a calculator which calculates a defocus amount based on the selected pair of image signals.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: December 24, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Takamiya, Akihiko Nagano
  • Patent number: 8587705
    Abstract: Methods and systems may provide for an image processing pipeline having a hardware module to spatially filter a raw image in the horizontal direction to obtain intermediate image data. The pipeline can also include a set of instructions which, if executed by a processor, cause the pipeline to spatially filter the intermediate image data in the vertical direction.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: November 19, 2013
    Assignee: Intel Corporation
    Inventor: David Stanhill
  • 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
  • Patent number: 8520077
    Abstract: A color-unevenness inspection apparatus includes: an image pickup section picking up an image of an inspection target for a color-unevenness inspection; an image generation section generating an uneven-color image by determining one or more uneven-color regions existing in the picked-up image of the inspection target obtained by the image pickup section, and by classifying unit regions included in each of the uneven-color regions into a plurality of color groups; a calculation section calculating, on the uneven-color regions in the uneven-color image, an evaluation parameter to be used in the color-unevenness inspection; a correction section making a correction to the calculated evaluation parameter in consideration of a difference of color-unevenness visibility between the color groups; and an inspection section performing the color-unevenness inspection, based on a resultant evaluation parameter obtained by the correction.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: August 27, 2013
    Assignee: Sony Corporation
    Inventors: Kunihiko Nagamine, Satoshi Tomioka
  • Patent number: 8514307
    Abstract: A solid-state imaging device includes a plurality of photoelectric conversion elements configured to perform photoelectric conversion on incident light. The device also includes a color filter array including at least three kinds of color filters different in filtering wavelength region. Any of the color filters is placed for each of the photoelectric conversion elements to filter the incident light. The spectral transmittances of the color filters are equal to each other in a predetermined wavelength region.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: August 20, 2013
    Assignee: Panasonic Corporation
    Inventors: Kunihiro Imamura, Keiichi Mori
  • Patent number: 8514322
    Abstract: Systems and methods are provided for obtaining adaptive exposure control and dynamic range extension of image sensors. In some embodiments, an image sensor of an image system can include a pixel array with one or more clear pixels. The image system can separately control the amount of time that pixels in different lines of the pixel array are exposed to light. As a result, the image system can adjust the exposure times to prevent over-saturation of the clear pixels, while also allowing color pixels of the pixel array to be exposed to light for a longer period of time. In some embodiments, the dynamic range of the image system can be extended through a reconstruction and interpolation process. For example, a signal reconstruction module can extend the dynamic range of one or more green pixels by combining signals associated with green pixels in different lines of the pixel array.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: August 20, 2013
    Assignee: Aptina Imaging Corporation
    Inventors: Yingjun Bai, Xiangli Li
  • Patent number: 8508633
    Abstract: An imaging device (100) includes: an imaging element (103) obtained by repeatedly arranging a pixel W for entire wavelength band, a W-R pixel for R, a W-G pixel for G, and a W-B pixel for B; a filter (102) configured such that a portion corresponding to the pixel W allows the entire wavelength band of a wavelength band within a certain range to pass and portions corresponding to the W-R pixel, the W-G pixel, and the W-B pixel reflect wavelength bands of corresponding colors, respectively; a reflection amount calculating unit (113) for calculating signal values of R, G, and B by subtracting a value of an image reading signal of each of the W-R pixel, the W-G pixel, and the W-B pixel from a value of an image reading signal of the pixel W.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: August 13, 2013
    Assignee: Panasonic Corporation
    Inventor: Nobuyuki Hirose
  • Patent number: 8466998
    Abstract: A solid-state image sensor executing photoelectric conversion for a subject image includes: a plurality of pixels disposed in a two-dimensional pattern and each equipped with a photoelectric conversion unit that generates and stores an electrical charge, wherein: the plurality of pixels are each one of a first pixel and a second pixel; the plurality of pixels are divided into a plurality of pixel blocks; the pixel blocks each include m×n pixels with m pixels and n pixels among the plurality of pixels set respectively along a columnar direction and along a row direction; at least one of the pixels in each pixel block is the first pixel; color filters assuming a single color are disposed at first pixels belonging to a common pixel block; and at least one pixel in at least one pixel block among the plurality of pixel blocks is the second pixel.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 18, 2013
    Assignee: Nikon Corporation
    Inventor: Satoshi Suzuki