With Color Filter Or Operation According To Color Filter Patents (Class 348/273)
-
Publication number: 20110228149Abstract: According to one embodiment, a solid-state imaging device includes a photodiode module in which first photodiodes corresponding to high-sensitivity pixels and second photodiodes corresponding to low-sensitivity pixels are alternately arranged at preset pitch P in a semiconductor substrate, high-sensitivity pixel interconnection lines formed at preset pitch C on the substrate, low-sensitivity pixel interconnection lines that are formed at preset pitch D on the substrate, high-sensitivity pixel color filters formed at preset pitch A on the opposite side of the respective interconnection lines with respect to the substrate, and low-sensitivity pixel interconnection lines that are formed at preset pitch B on the other side of the interconnection lines with respect to the substrate. The relationship between the above pitches is set to D=B<P<A=C.Type: ApplicationFiled: March 18, 2011Publication date: September 22, 2011Inventors: Junji NARUSE, Nagataka Tanaka
-
Publication number: 20110228148Abstract: A photoelectric conversion film stack-type solid-state imaging device includes a semiconductor substrate, a photoelectric conversion layer, a photoelectric conversion layer, and a conductive light shield film. A signal reading portion is formed on the semiconductor substrate. The photoelectric conversion layer is stacked above the semiconductor substrate and includes a photoelectric conversion film formed between a first electrode film and a second electrode films which is divided into a plurality of regions corresponding to pixels respectively. The first light transmission layer is stacked above the light incidence side of the photoelectric conversion layer and made of a material that transmits light at least partially. The conductive light shield film is formed in the same layer level as the first light transmission layer and covers an outside of an effective pixel region.Type: ApplicationFiled: March 16, 2011Publication date: September 22, 2011Applicant: FUJIFILM CORPORATIONInventor: Takuya TAKATA
-
Publication number: 20110228147Abstract: At least some of the pixels on which color filters that give the largest weight to a brightness signal or color filters that have the highest transmittance among the plurality of color filters are provided are pixels for focus detection that are designed in such a way that the direction of incidence of light beams incident thereon is restricted, the pixels other than the pixels for focus detection are pixels for image picking-up that are designed in such a way that the degree of restriction placed on light beams incident thereon is smaller than that placed on light beams incident on the pixels for focus detection, the pixels for focus detection output at least a signal for ranging, the pixels for image picking-up output at least a signal for an image, and there are at least three pixels for focus detection in an area defined between a circle having its center at the center of any one of the pixels for focus detection and having a radius equal to 3.Type: ApplicationFiled: March 9, 2011Publication date: September 22, 2011Inventors: Keigo Matsuo, Hisashi Goto
-
Patent number: 8018509Abstract: An image input processing apparatus includes: an optical band separating filter; a color filter of a four-color arrangement having an equivalence in which the sum of two colors is equivalent to one other color in the visible light region or the sum of three colors is equivalent to once or twice one other color in the visible light region; an optical sensor section that generates an imaging signal; a data separating section that separates the pixel data of the imaging signal into pieces of pixel data of four colors; an infrared separating section that performs infrared separation by a subtraction using the equivalence among the pieces of pixel data of the four colors after the separation; a first and second integration sections; a camera control processing section that determines which of the integration values from the first and second integrating sections is used.Type: GrantFiled: April 9, 2008Date of Patent: September 13, 2011Assignee: Sony CorporationInventor: Hajime Numata
-
Publication number: 20110216228Abstract: A solid-state image sensing element includes a plurality of pixels, a color filter, a plurality of vertical charge transfer paths, a plurality of readout electrode portions. The pixels are formed on one face of a semiconductor substrate in a two-dimensional array arrangement. The color filter corresponds to a plurality of colors and includes a plurality of color filter elements disposed color by color on the pixels respectively so as to be arranged as a mosaic pattern as a whole. The vertical charge transfer paths are formed one by one between two of pixel columns composed of the pixels so that each of the vertical charge transfer paths transfers signal corresponding to one of the colors. The readout electrode portions connect each of the vertical charge transfer paths to pixels arranged in both sides of each of the vertical charge transfer paths.Type: ApplicationFiled: September 13, 2010Publication date: September 8, 2011Applicant: FUJIFILM CORPORATIONInventors: Noriko KAWAMURA, Tomoyuki KAWAI
-
Publication number: 20110216229Abstract: A spectral filter (150.1-150.4) comprising at least one metallic layer (101) structured by at least one hole (250.1-250.4) passing through two opposite mains faces of the metallic layer and comprising, in a plane parallel to a plane of one of the two main faces, a first rectangular section whereof a first side has a dimension between around 40 nm and 100 nm, and whereof a second side, perpendicular to the first side, has a dimension between around 150 nm and 1000 nm, and a second rectangular section centred relative to the first rectangular section, a first side of the second section being parallel to the second side of the first section and having a dimension between around 40 nm and 100 nm.Type: ApplicationFiled: September 9, 2009Publication date: September 8, 2011Inventors: Alexandre Mary, Yohan Desieres
-
Publication number: 20110216230Abstract: An image data processing apparatus includes a data size conversion device that changes a data size of an image data at an optional ratio, the image data has a plurality of pixels each of which includes any one of a plurality of color components, and the plurality of color components being arranged in a specific order. The data size conversion device newly calculates a value of color component of each pixel after changing the data size based upon values of color components of a plurality of same color pixels before changing the data size, while maintaining the order of arrangement of the plurality of color components.Type: ApplicationFiled: April 18, 2011Publication date: September 8, 2011Applicant: NIKON CORPORATIONInventor: Masahiro Suzuki
-
Publication number: 20110211099Abstract: 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: ApplicationFiled: March 27, 2009Publication date: September 1, 2011Inventors: Shree K. Nayar, Fumihito Yasuma, Tomoo Mitsunaga
-
Publication number: 20110211098Abstract: A method of filtering an image filter is disclosed. The filter is provided for a digital camera including image sensors sensitive to light, a color filter placed over sensitive elements of the sensors and patterned according to a Bayer mosaic pattern layout and an interpolation algorithm joining together the digital information provided by differently colored adjacent pixels in said Bayer pattern. The filter is adaptive and includes a noise level computation block for operating directly on a said Bayer pattern data set of for each color channel thus removing noise while simultaneously preserving picture detail.Type: ApplicationFiled: April 28, 2011Publication date: September 1, 2011Applicant: STMICROELECTRONICS S.R.L.Inventors: Angelo Bosco, Massimo Mancuso
-
Publication number: 20110211079Abstract: Various embodiments directed to modifying and enhancing visual perception are disclosed. One embodiment is directed to a camera which includes a lens system for capturing images and a lighting system providing key light above the lens system and providing fill light below the lens system. A processor controls one or more operations of the camera, including automatically enhancing the captured images and presenting the enhanced images on a display. The system and method for modifying visual perception may also be directed to a video camera mirror system, a seating system, a cosmetic package, a lipstick packaging, a polarized mirror, an illuminated cosmetic brush, a personal portrait photography management system and an illumination system for modifying visual perception.Type: ApplicationFiled: May 9, 2011Publication date: September 1, 2011Applicant: MATTHEW ROLSTON PHOTOGRAPHER, INC.Inventor: Matthew Rolston
-
Publication number: 20110205410Abstract: Provided is an image sensor having a color filter. The image sensor includes a photoelectric conversion device formed in a semiconductor substrate. Interlayer insulating layers are laminated on an upper portion of the semiconductor substrate. The interlayer insulating layers defines an opening located on an upper portion of the photoelectric conversion device. A color filter is disposed in the opening, and a planarization layer fills the opening on the color filter. The planarization layer has a refractive index which is greater than an average refractive index of the interlayer insulating layers.Type: ApplicationFiled: December 21, 2010Publication date: August 25, 2011Inventor: JUNGCHAK AHN
-
Patent number: 8004595Abstract: To provide a solid-state imaging device that can capture an image which is bright through to its periphery, even when used in a single-lens reflex digital camera that accepts various interchangeable lenses from wide-angle to telephoto. The solid-state imaging device includes a two-dimensional array of unit pixels each of which includes a light-collecting element. A light-collecting element in a unit pixel is a combination of circular-sector-shaped light-collecting elements having different concentric structures. A central axis of the concentric structures is perpendicular to a light-receiving plane of the light-collecting element. Each of the circular-sector-shaped light-collecting elements is divided into concentric zone areas of a width equal to or smaller than a wavelength of incident light. Thus, an image which is bright through to its periphery can be captured even when light incident on a unit pixel changes from wide-angle to telecentric (chief rays are approximately parallel to an optical axis).Type: GrantFiled: November 21, 2008Date of Patent: August 23, 2011Assignee: Panasonic CorporationInventor: Kazutoshi Onozawa
-
Patent number: 8004588Abstract: An image processing procedure receives mosaic image data and calculates vertical and horizontal-direction color difference components for each pixel. The image processing procedure subsequently selects an R pixel or a B pixel from the mosaic image data, and compares a variation of the vertical-direction color difference component with a variation of the horizontal-direction color difference component with regard to each of at least the selected pixels to detect edge directions of the at least selected pixels. The edge directions thus obtained are collected in an edge direction map, and then the edge directions are compared with the surrounding edge directions to remove edge noise in advance. The image processing procedure refers to the detected edge directions, and interpolates a missing color component in each pixel of the mosaic image data with the settings of one color component in each pixel in the mosaic image data.Type: GrantFiled: August 27, 2008Date of Patent: August 23, 2011Assignee: Seiko Epson CorporationInventor: Rastislav Lukac
-
Patent number: 7999870Abstract: A CMOS image sensor or other type of image sensor comprises an array of pixels arranged in rows and columns, with the columns being separated into groups each comprising two or more columns that share a common output. The image sensor further comprises sampling and readout circuitry that includes, for each group of columns in the pixel array, a corresponding set of two or more column circuits. The sampling and readout circuitry is configured to sample the common output for each group of columns independently into one of the column circuits associated with that group, and to read out the common output for each group of columns as previously sampled into another of the column circuits associated with that group. The image sensor may be implemented in a digital camera or other type of image capture device.Type: GrantFiled: February 1, 2008Date of Patent: August 16, 2011Assignee: OmniVision Technologies, Inc.Inventors: John T. Compton, John F. Hamilton, Jr.
-
Patent number: 7999859Abstract: In a digital camera, when snapshot shooting is instructed during recording of a moving image, a shot still image is temporarily pushed aside in a memory area for use in pushing aside (7a) in a frame buffer (7). A currently shooting motion image and a still image are displayed in parallel on a display (9), so that a user can confirm a content of a snapshot. The moving image continues to be recorded even during a push-aside operation. After a moving image processing is completed, the still image is processed by an image correcting circuit (4). The frame buffer (7) comprises a plurality of frame recording areas, and is shared on the occasions of a moving image processing and a still image processing. In a normal moving image processing, these areas are utilized in a cyclic manner, and when the still image is shot, any of areas will be utilized. Thereafter, the rest of areas are utilized in the cyclic manner for the moving images.Type: GrantFiled: March 21, 2008Date of Patent: August 16, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Shigeyuki Okada, Hiroshi Hanafusa, Noriaki Kojima
-
Publication number: 20110194000Abstract: A photoelectric conversion element includes a pair of electrodes, a photoelectric conversion layer, a charge blocking layer, an intermediate layer. The photoelectric conversion layer contains an organic material between the electrodes. The charge blocking layer is disposed between the photoelectric conversion layer and one of the electrodes. The intermediate layer includes an organic compound disposed between the photoelectric conversion layer and the charge blocking layer and having a glass transition temperature of 200° C. or higher.Type: ApplicationFiled: February 8, 2011Publication date: August 11, 2011Applicant: FUJIFILM CORPORATIONInventors: Hideyuki SUZUKI, Tetsuro MITSUI
-
Patent number: 7995093Abstract: In an endoscope apparatus in which a scope is connected to a processor unit in a freely attachable and detachable way, the endoscope apparatus wherein matrix calculation is conducted for RGB signals formed by using CCD, a color space conversion processing circuit is provided for forming spectral images of the arbitrarily selected wavelength range. CCD characteristics identification information including types of color filters of the CCD and spectral characteristics or scope characteristics information is stored in the ROM of the scope, a plurality of matrix data corresponding to characteristics identification information is stored in the memory of the processor unit, and matrix data corresponding to the obtained characteristics information is read from the memory, thereby forming an excellent spectral image by using data suitable for characteristics of the CCD or the scope.Type: GrantFiled: February 17, 2006Date of Patent: August 9, 2011Assignee: Fujinon CorporationInventors: Shinji Takeuchi, Kazunori Abe, Daisuke Ayame
-
Patent number: 7995110Abstract: A scan conversion device includes a first buffer unit, a pixel packing unit, a second buffer unit, and a scan output unit. The first buffer unit stores therein pixel signals of the input image on every line in a main scanning direction thereof. The pixel packing unit groups N (N?2) pixel signals on each line into pixel signal packs according to a predetermined pixel combination rule, and outputs them sequentially. The second buffer unit stores therein the pixel signal packs and aligns them in a second main scanning direction different from the main scanning direction. The scan output unit sequentially outputs the pixel signal packs aligned in the second main scanning direction. According to this configuration, a scan pattern of the input image is changed into a scan pattern of outputting every N output lines in the second main scanning direction.Type: GrantFiled: December 31, 2009Date of Patent: August 9, 2011Assignee: Nikon CorporationInventor: Akihiko Morishita
-
Patent number: 7990434Abstract: In a digital camera, when snapshot shooting is instructed during recording of a moving image, a shot still image is temporarily pushed aside in a memory area for use in pushing aside (7a) in a frame buffer (7). A currently shooting motion image and a still image are displayed in parallel on a display (9), so that a user can confirm a content of a snapshot. The moving image continues to be recorded even during a push-aside operation. After a moving image processing is completed, the still image is processed by an image correcting circuit (4). The frame buffer (7) comprises a plurality of frame recording areas, and is shared on the occasions of a moving image processing and a still image processing. In a normal moving image processing, these areas are utilized in a cyclic manner, and when the still image is shot, any of areas will be utilized. Thereafter, the rest of areas are utilized in the cyclic manner for the moving images.Type: GrantFiled: March 21, 2008Date of Patent: August 2, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Shigeyuki Okada, Hiroshi Hanafusa, Noriaki Kojima
-
Publication number: 20110181762Abstract: According to the embodiments, there is provided an image processing apparatus including: an acquisition section configured to acquire 3×3 pixel block data to have one red pixel at a center; an estimation section configured to compute blue value differences between blue values of diagonal pairs of blue pixels in the block data, and to estimate a direction of a contrast boundary based on the blue value differences; and a processing section configured to compute a computed blue value based on the blue values of the four blue pixels within the block data according to the estimated direction of the contrast boundary, to compute a computed green value based on green values of two green pixels within the block data, and to output a color image pixel to have a red value of the red pixel and the computed blue and green values.Type: ApplicationFiled: January 26, 2011Publication date: July 28, 2011Applicant: HONDA ELESYS CO., LTD.Inventor: Kazuyoshi Otuka
-
Publication number: 20110181763Abstract: In an image capture device according to the present invention, a number of photosensitive cells are arranged between a first surface 30a of a semiconductor layer and its second surface 30b, which is opposed to the first surface, and the device can receive incoming light at not only the first surface 30b but also the second surface 30b as well. The device further includes an optical system 300 with an optical element 9 for splitting the incoming light into first and second light rays. The optical system 300 is designed so as to make the first and second light rays strike the first and second surfaces 30a and 30b, respectively.Type: ApplicationFiled: March 2, 2010Publication date: July 28, 2011Applicant: PANASONIC CORPORATIONInventors: Masao Hiramoto, Teruyuki Takizawa, Yoshiaki Sugitani
-
Patent number: 7986361Abstract: Interpolated image data is generated from image-sensing data according to the color characteristic of an object. A color filter that has a strong correlation with the color characteristic of an object in image-sensing data captured by an image sensing device having a color filter array in which filters of a plurality of colors are arranged is determined. Interpolated image data of a color component corresponding to the determined color filter is generated by using the pixel values of the image-sensing data corresponding to the color filter. Interpolated image data of the color component corresponding to each of color filters different from the determined color filter is generated by using the generated interpolated image data and the pixel values of the image-sensing data corresponding to each of the color filters different from the determined color filter.Type: GrantFiled: October 1, 2008Date of Patent: July 26, 2011Assignee: Canon Kabushiki KaishaInventor: Yoshihiro Manabe
-
Patent number: 7986358Abstract: A single-site color image, such as a Bayer CCD image, is converted to a color space image using the resource of a Graphics Processing Unit (GPU). The Bayer image is loaded into the GPU along with commands to cause the texture engine in the GPU to use the Bayer image as a source texture and to compute, for each pixel in a destination image having same dimensions as the single-site color camera image, interpolated neighbor pixel values from the single-site color camera image for the remainder of said colors. A code image can be used to provide, for each pixel in the destination image, a value for each combination of color space image color and each Bayer image color. Each pixel is then computed as a sum of a product of each code image. value and a corresponding value selected from the corresponding source texture pixels and an interpolation of neighboring source texture pixels.Type: GrantFiled: February 25, 2003Date of Patent: July 26, 2011Assignee: Matrox Electronic Systems, Ltd.Inventors: Louis-Antoine Blais-Morin, Stéphane Baldo, Guillaume Cottinet
-
Patent number: 7986359Abstract: An electronic image pickup apparatus comprises a color image pickup element having a plurality of drive modes including at least the first drive mode and the second drive mode. The color-conversion parameter storage section of the apparatus stores the first color-conversion parameter. The color-conversion parameter computing section of the apparatus computes from the first color-conversion parameter the second color-conversion parameter. The computation parameter storage section of the apparatus stores the computation parameter for computing the second color-conversion parameter. The color-conversion section of the apparatus converts the color data acquired by the color image pickup element in the first drive mode according to the first color-conversion parameter and the color data acquired by the color image pickup element in the second drive mode according to the second color-conversion parameter.Type: GrantFiled: January 29, 2007Date of Patent: July 26, 2011Assignee: Olympus Imaging Corp.Inventor: Kenichi Onomura
-
Patent number: 7986360Abstract: The present invention relates to an image processing apparatus which can restore, from a color and sensitivity mosaic image acquired using a CCD image sensor of the single plate type or the like, a color image signal of a wide dynamic range wherein the sensitivity characteristics of pixels are uniformized and each of the pixels has all of a plurality of color components. A sensitivity uniformization section uniformizes the sensitivities of pixels of a color and sensitivity mosaic image to produce a color mosaic image, and a color interpolation section interpolates color components of the pixels of the color mosaic image M to produce output images R, G and B. The present invention can be applied to a digital camera which converts a picked up optical image into a color image signal of a wide dynamic range.Type: GrantFiled: April 30, 2008Date of Patent: July 26, 2011Assignee: Sony CorporationInventors: Tomoo Mitsunaga, Seiji Kobayashi, Hiroaki Ono
-
Publication number: 20110176036Abstract: A method of interpolating a signal output from an image sensor including a pixel array having an M×N matrix as a basic pixel block where M and N are integers is provided. The method includes selecting a target pixel signal from among pixel signals output from the basic pixel block; and converting a pattern of a pixel signal output from the pixel array into a Bayer pattern by converting a pixel signal output from the basic pixel block into the Bayer pattern through an operation on the target pixel signal and a neighboring pixel signal of the target pixel signal and interpolating an output signal converted into the Bayer pattern.Type: ApplicationFiled: January 14, 2011Publication date: July 21, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Alexander Getman, Jin Hak Kim, Tae Chan Kim, Hee Min Park
-
Patent number: 7982788Abstract: A method of generating video and a video camera are disclosed. The method generally includes the steps of (A) generating an input signal by sensing an optical signal using a plurality of first pixels, wherein (i) the sensing is capable of a pixel reduction by at least one of binning the first pixels and skipping some of the first pixels and (ii) a plurality of first spatial separations among the first pixels in the input signal are (a) uniform both horizontally and vertically while the pixel reduction is inactive and (b) non-uniform while the pixel reduction is active, (B) generating a plurality of second pixels in response to the first pixels such that a plurality of second spatial separations among the second pixels are uniform both horizontally and vertically while the pixel reduction is active and (C) generating an output signal carrying the second pixels.Type: GrantFiled: July 29, 2008Date of Patent: July 19, 2011Assignee: Ambarella, Inc.Inventors: Elliot N. Linzer, Wilson Kwok
-
Patent number: 7982174Abstract: An imaging device including: a pixel array part in which a plurality of pixels with different characteristics of spectral sensitivity are arranged in an array and which converts light transmitted through the pixel into an electric signal. The pixel array part has a plurality of color pixels and at least one clear pixel, the plurality of color pixels including (i) a first color filter pixel having a peak of spectral sensitivity characteristics in red, (ii) a second color filter pixel having a peak in blue, and (iii) a third color filter pixel having a peak in green.Type: GrantFiled: February 10, 2010Date of Patent: July 19, 2011Assignee: Sony CorporationInventors: Junichi Kanai, Nobuo Nakamura
-
Publication number: 20110141321Abstract: A method and apparatus is provided for rendering an image. The method includes capturing a distorted input image using a color filter array to obtain an input image pattern having a single color channel per pixel. The input image is transformed to an input image signal. At least a portion of the input image signal is dewarped to obtain an undistorted image signal by (i) identifying selected coordinate points in the input signal that correspond to coordinate points in the undistorted image signal and (ii) determining a first color channel value for at least one of the selected coordinate points with a color correlation-adjusted interpolation technique using at least one nearest neighbor pixel having a color channel different from the first color channel.Type: ApplicationFiled: December 16, 2009Publication date: June 16, 2011Applicant: GENERAL INSTRUMENT CORPORATIONInventors: Bei Tang, James E. Crenshaw
-
Patent number: 7960807Abstract: A CMOS light detector configured to detect specific wavelengths of light includes a first sensor and a second sensor. The first sensor includes CMOS photocells that are covered by a colored filter layer of a first color that has a first transmittance that allows both light of the specific wavelengths and light of other wavelengths to pass. The second sensor including further CMOS photocells, at least some of which are covered by both a colored filter layer of the first color and a colored filter layer of a second color, stacked one above the other in either order, where the colored filter layer of the second color has a second transmittance that allows light of the other wavelengths to pass. The first sensor produces a first photocurrent, and the second sensor produces a second photocurrent, when light including both the specific and other wavelengths is incident upon the detector.Type: GrantFiled: March 14, 2007Date of Patent: June 14, 2011Assignee: Intersil Americas Inc.Inventors: Xijian Lin, Phillip J. Benzel, Bjoy Santos, Joy Jones
-
Publication number: 20110134293Abstract: The camera according to the present invention has an imaging unit, a sensor having a quantum efficiency of 60% or higher in a visible light range for detecting a focal point adjustment state in the imaging unit, and a control unit for outputting a control signal for adjusting the focal point on the imaging unit on the basis of the output from the sensor.Type: ApplicationFiled: August 19, 2009Publication date: June 9, 2011Applicant: Rohm Co., TldInventor: Masahide Tanaka
-
Image-processing device for color image data and method for the image processing of color image data
Publication number: 20110134291Abstract: A digital image-processing device with a Bayer sensor and an image memory is provided in which the image data of the sensor is written into an image memory, and from this image memory, image data in the Bayer format with a length L and a width B is written continuously into a data buffer, and in which the sample values are combined by means of a computational device with the help of adders, in each case symmetrically to a central point of one or more (2n+1)×(2n+1) neighborhoods, and one or more (n+1)×(n+1) matrices are derived by means of the computational device, and from this (n+1)×(n+1) matrix or these matrices, with the help of additional adders, at least one n×n matrix is formed, and a first color component is in each case calculated from this by means of an adder network.Type: ApplicationFiled: August 17, 2007Publication date: June 9, 2011Applicant: BAUMER OPTRONIC GMBHInventors: Ingo Rueckert, Oliver Vietze, Joachim Ihlefeld -
Patent number: 7952768Abstract: A color interpolation method capable of more precisely interpolating each of pixels of an image passing through a color filter of a Bayer pattern and detected by an image sensor, the method including: defining a pixel group of a matrix structure, having a pixel to be color-interpolated as a center pixel, in an image passed through a color filter of Bayer pattern and detected by an image sensor; determining whether an edge exists or not in the pixel group; interpolating a color of the center pixel using a low pass filter when an edge does not exist in the pixel group; and interpolating a color of the center pixel according to directivity of an edge when the edge exists in the pixel group. The invention suppresses noise during color interpolation and enables more precise color interpolation.Type: GrantFiled: September 21, 2007Date of Patent: May 31, 2011Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Tae Hyeon Kwon, Kyoung Joong Min
-
Patent number: 7952623Abstract: A solid state imaging device comprises: a semiconductor substrate; and a plurality of photoelectric conversion elements arranged on the semiconductor substrate in a row direction and a column direction substantially perpendicular to the row direction, wherein said plurality of photoelectric conversion elements are divided to first and second groups, when positions of the photoelectric conversion elements of the second group are considered as reference positions, the photoelectric conversion elements of the first group are disposed at positions shifted in a given direction from the reference positions in such a manner that each of the photoelectric conversion elements of the first group adjoins the each of the photoelectric conversion elements of the second group, spectral filters are respectively provided upwardly of light receiving surfaces of the photoelectric conversion elements of the first group, the spectral filters comprising three or more kinds of spectral filters respectively transmitting different cType: GrantFiled: February 23, 2007Date of Patent: May 31, 2011Assignee: Fujifilm CorporationInventor: Tetsu Wada
-
Patent number: 7952624Abstract: In a multilayer film filter formed of inorganic dielectric materials, a spacer layer has different thicknesses to form a plurality of color-transmissive filter elements having multiple different spectral characteristics on an image sensor.Type: GrantFiled: September 27, 2006Date of Patent: May 31, 2011Assignee: Panasonic CorporationInventor: Kazuyuki Inokuma
-
Publication number: 20110122302Abstract: A pixel that detects short-wavelength light is provided in a light receiving unit on a silicon substrate and has a first color filter. A pixel that detects long-wavelength light is provided in the light receiving unit on the silicon substrate, is provided in a position closer to an outer edge of the light receiving unit than the pixel that detects the short-wavelength light, and has a second color filter. A longest-wavelength transmission band of the first color filter is a first transmission band, and the longest-wavelength transmission band of the second color filter is a second transmission band. The second transmission band has a longer wavelength than the first transmission band.Type: ApplicationFiled: November 24, 2010Publication date: May 26, 2011Applicant: OLYMPUS CORPORATIONInventor: Yasuhiro Fukunaga
-
Patent number: 7948534Abstract: A CCD image sensor comprises photosensitive elements arranged in rows and columns, vertical CCDs each having vertical shift elements associated with respective ones of the photosensitive elements of a corresponding one of the columns, and a horizontal CCD comprising horizontal shift elements. The image sensor further comprises a transition region arranged between the vertical CCDs and the horizontal CCD. The transition region is configured to separate each of a plurality of signal channels provided by respective ones of the vertical CCDs into first and second parallel signal channels and to controllably direct selected ones of the parallel signal channels to the horizontal shift elements of the horizontal CCD in accordance with a designated readout sequence.Type: GrantFiled: October 22, 2008Date of Patent: May 24, 2011Assignee: Eastman Kodak CompanyInventor: Eric J. Meisenzahl
-
Publication number: 20110108938Abstract: An image sensor having an array of pixels disposed in a substrate. Each pixel includes a photosensitive element, a color filter, and waveguide walls. The waveguide walls are disposed in the color filter and surround portions of the color filter to form waveguides through the color filter. The refractive index of the waveguide walls is less than the refractive index of the color filter. The image sensor may be back side illuminated (BSI) or front side illuminated (FSI). In some embodiments, metal walls may be coupled to the waveguide walls.Type: ApplicationFiled: November 9, 2009Publication date: May 12, 2011Applicant: OMNIVISION TECHNOLOGIES, INC.Inventors: Hidetoshi Nozaki, Fei Wu
-
Publication number: 20110109776Abstract: An imaging device includes a plurality of pixels each of which includes a microlens, first and second photoelectric conversion portions. The first photoelectric conversion portion is between the microlens and a focal point of the microlens. The second photoelectric conversion portion is at a position being different from that of the focal point on a plane which is parallel to an imaging plane and which contains the focal point, and has a photoelectric conversion region deviated from an optical axis of the microlens in a direction of the imaging plane. The plurality of pixels includes a first pixel group and a second pixel group. The photoelectric conversion region is deviated from the optical axis in the direction in the first pixel group. The photoelectric conversion region is deviated from the optical axis in the direction to be opposite to the first pixel group in the second pixel group.Type: ApplicationFiled: November 9, 2010Publication date: May 12, 2011Applicant: FUJIFILM CORPORATIONInventor: Tomoyuki KAWAI
-
Publication number: 20110109777Abstract: A method of implementing high-performance color filter mosaic arrays (CFA) using luminance pixels. The introduction of luminance pixels greatly improves the accuracy of the image acquisition process for a given pixel and image sensor size.Type: ApplicationFiled: January 12, 2011Publication date: May 12, 2011Applicant: RJS TECHNOLOGY, INC.Inventor: Sorin Davidovici
-
Patent number: 7940282Abstract: A method of creating a super-resolved color image from multiple lower-resolution color images is provided by combining a data fidelity penalty term, a spatial luminance penalty term, a spatial chrominance penalty term, and an inter-color dependencies penalty term to create an overall cost function. The data fidelity penalty term is an L1 norm penalty term to enforce similarities between raw data and a high-resolution image estimate, the spatial luminance penalty term is to encourage sharp edges in a luminance component to the high-resolution image, the spatial chrominance penalty term is to encourage smoothness in a chrominance component of the high-resolution image, and the inter-color dependencies penalty term is to encourage homogeneity of an edge location and orientation in different color bands. A steepest descent optimization is applied to the overall cost function for minimization by applying a derivative to each color band while the other color bands constant.Type: GrantFiled: August 17, 2006Date of Patent: May 10, 2011Assignee: The Regents of the University of California, Santa CruzInventors: Peyman Milanfar, Sina Farsiu, Michael Elad
-
Publication number: 20110102651Abstract: An image sensor has a plurality of pixels in a pixel array. Each pixel includes a photoelectric conversion unit below an insulating layer and a light guide to transmit light to the photoelectric conversion unit. Across five or more pixels arrayed in a direction, the light guides have a spacing between them that varies non-monotonically across the five or more pixels. A width of the light guide and/or a horizontal pitch between consecutive light guides may vary non-monotonically across same. A light guide of a pixel that detects light of shorter wavelengths only may be narrower than a light guide of another pixel that detects light of longer wavelengths. A color filter may be coupled to the light guide. A width of a gap between consecutive color filters may vary non-monotonically across same. A pitch between the gaps may vary non-monotonically across same.Type: ApplicationFiled: November 5, 2010Publication date: May 5, 2011Inventor: Hiok Nam TAY
-
Patent number: 7936377Abstract: In a first exemplary embodiment of the present invention, a camera is provided. The camera comprises a lens and a sensor to record an image focused by the lens in N color bands, wherein N equals a number of color bands, with the number and respective locations and widths of the N color bands being selected to optimize the image for processing.Type: GrantFiled: April 30, 2007Date of Patent: May 3, 2011Assignee: Tandent Vision Science, Inc.Inventors: Richard Mark Friedhoff, Casey Arthur Smith, Steven Joseph Bushell
-
Publication number: 20110096212Abstract: In an image sensor having a plurality of pixels which photoelectrically convert a subject image, a plurality of pairs of focus detection pixels including first focus detection pixels (SHA) and second focus detection pixels (SHB) are arranged while being distributed. The first focus detection pixel (SHA) and the second focus detection pixel (SHB) of each pair of focus detection pixels are arranged at a distance shorter than the pitch of the pairs of focus detection pixels. This reduces focus detection errors generated when the pixels included in the pairs of focus detection pixels receive light fluxes from different portions of the subject.Type: ApplicationFiled: July 8, 2009Publication date: April 28, 2011Applicant: CANON KABUSHIKI KAISHAInventor: Makoto Oikawa
-
Publication number: 20110096210Abstract: A solid-state imaging device includes a photoelectric transformation portion and a micro lens, the micro lens has a first refractive index layer which is a first refractive index and a second refractive index layer which is a second refractive index different from the first refractive index, wherein the micro lens is configured so that a vertical cross section, which is a surface perpendicular to the capturing surface, has a rectangular shape, wherein each of the first refractive index layer and the second refractive index layer are arranged adjacent to each other in a direction along the capturing surface, and an interface between the first refractive index layer and the second refractive index layer in the vertical cross section is formed so as to follow a direction perpendicular to the capturing surface.Type: ApplicationFiled: October 18, 2010Publication date: April 28, 2011Applicant: SONY CORPORATIONInventors: Yasunori Koshino, Atsushi Toda, Yoichi Otsuka
-
Publication number: 20110096211Abstract: In an image sensor having a plurality of pixels which photoelectrically convert a subject image, a plurality of pairs of focus detection pixels including first focus detection pixels (SHA) and second focus detection pixels (SHB) are arranged while being distributed. The layouts of the first focus detection pixel (SHA) and the second focus detection pixel (SHB) are switched in pairs of focus detection pixels adjacent in the focus detection direction. Focus detection is performed using image waveforms obtained from the first focus detection pixel (SHA) and the second focus detection pixel (SHB) whose layouts are switched. This reduces focus detection errors generated when the pixels included in the pairs of focus detection pixels receive light fluxes from different portions of the subject.Type: ApplicationFiled: July 8, 2009Publication date: April 28, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Makoto Oikawa, Akihiko Nagano, Yasuo Suda
-
Patent number: 7932944Abstract: The pixel mixture method of the present invention for mixing several pixels on a solid-state image sensing device, which is applied to an imaging device having the solid-state image sensing device with a color filter array (CFA) and multiple pixels, comprising: a pixel mixture operating step for performing a pixel mixture operation based on a pixel mixture operation equation for the several pixels that are adjacent spatially; a color conversion matrix generating step for generating a color conversion matrix based on the kind of colors of a color space after mixture and the pixel mixture operation equation; and a desired color space converting step for converting the color space after mixture into a desired color space based on the generated color conversion matrix.Type: GrantFiled: June 1, 2006Date of Patent: April 26, 2011Assignee: Tokyo Institute of TechnologyInventors: Masayuki Tanaka, Masatoshi Okutomi
-
Patent number: 7932948Abstract: A solid-state image sensing device comprises: a light receiving unit for receiving light; a microlens formed above the light receiving unit; a fluorine-containing resin material layer formed on the microlens; and a transparent substrate provided over the fluorine-containing resin material layer. A resin layer adheres the fluorine-containing resin material layer and the transparent substrate.Type: GrantFiled: July 19, 2006Date of Patent: April 26, 2011Assignee: Panasonic CorporationInventors: Toshihiro Higuchi, Tomoko Komatsu, Tomoki Masuda, Mamoru Honjo, Naoki Tomoda
-
Publication number: 20110090382Abstract: A method is disclosed for producing signals representative of an image of a scene including the following steps: providing an image sensor with a lenticular lens pattern thereon, and projecting the image onto the image sensor via the lenticular lens pattern, the image sensor having a pixel element pattern and the lenticular lens pattern having diamond shaped lenticles and being diagonally oriented with respect to the horizontal scanning direction of the pixel element pattern; and producing image-representative signals by reading out signals from the pixel elements of the image sensor.Type: ApplicationFiled: October 27, 2010Publication date: April 21, 2011Inventor: William E. Glenn
-
Patent number: 7929759Abstract: Missing color data of a specified pixel of a Bayer pattern is reconstructed with a plurality of interpolation algorithms. A vertical color data difference index Cv and a horizontal color data difference index Ch are first measured according to color data of a first group of pixels included in a pixel array, wherein the first group of pixels include a plurality of pixels vertically adjacent to the specified pixel, a plurality of pixels horizontally adjacent to the specified pixel, and at least one other pixel non-vertical and non-horizontal to the specified pixel. Then, one of a plurality of preset interpolation algorithms is selected according to a comparing result of the vertical color data difference index Cv and horizontal color data difference index Ch, and executed to obtain a reconstructed color data of the specified pixel.Type: GrantFiled: February 2, 2007Date of Patent: April 19, 2011Assignee: Mstar Semiconductor, Inc.Inventors: Chi Feng Peng, Chiou Yuan Lai