Smear Patents (Class 348/248)
  • Patent number: 10547802
    Abstract: While realizing a broad dynamic range, the present technology relates to a solid-state image pickup device and control method therefor, and electronic apparatus aiming at enabling an influence of PLS to be suppressed. The solid-state image pickup device includes a pixel array unit in which a plurality of pixels are arrayed. A portion of pixels in the pixel array unit are a unit pixel at least having one photoelectric conversion element and over flow integration capacitor. Further, the solid-state image pickup device includes one AD converter for one or more unit pixels in the pixel array unit. The present technology is applicable to, for example, the solid-state image pickup.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: January 28, 2020
    Assignee: Sony Corporation
    Inventors: Masaki Sakakibara, Yasuhisa Tochigi
  • Patent number: 10389951
    Abstract: An electronic device includes a lens part that receives light from a subject, an image sensor that receives the light of the lens part from a group of pixels arranged two-dimensionally, and an processor that processes an image signal of the image sensor. The image sensor performs a read-out operation at a speed to prevent blurring of an image. The processor temporarily stores image data by the read-out operation in a memory, loads a plurality of images stored in the memory to generate an image, of which the number of bits is expanded compared with the image signal of the image sensor, and performs gamma processing on the image, of which the number of bits is expanded, to generate an image compressed to the same number of bits as the image signal of the image sensor.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 20, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae Hyoung Park, Byung Ho Kim, Jae Joon Moon, Jeong Won Lee, Han Sung Kim, Woo Seok Choi, Shuichi Shimokawa, Takafumi Usui
  • Patent number: 10368016
    Abstract: A photoelectric conversion device includes a voltage supply portion configured to set a bias state of a photoelectric conversion layer to each of a reverse bias state and a forward bias state by supplying a plurality of voltages having respective different values to at least one of a first electrode portion and a second electrode portion, wherein, during the forward bias state, a current flows between the first electrode portion and the second electrode portion.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 30, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuaki Tashiro
  • Patent number: 10360691
    Abstract: In one embodiment, a light sensor, such as a camera, records an image through the surface with the residue to produce a stained image. A processor associated with the camera identifies object outlines within the image using a machine learning model, and smooth the colors within the object outlines. In another embodiment, the light sensor is placed beneath a dual-mode region of a display containing the residue. The dual-mode region can be opaque and function as part of the display, or can be transparent and allow environment light to reach the light sensor. Initially, the processor determines the position of the residue by causing the dual-mode region to display a predetermined pattern, while the light sensor records the predetermined pattern. Using the determined position of the residue, the processor corrects the pixels within the residue in the recorded image, by interpolating the values of the pixels outside of the residue.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: July 23, 2019
    Assignee: ESSENTIAL PRODUCTS, INC.
    Inventors: David John Evans, V, Xinrui Jiang, Andrew E. Rubin, Matthew Hershenson, Xiaoyu Miao, Joseph Anthony Tate, Jason Sean Gagne-Keats
  • Patent number: 10348925
    Abstract: An image reading apparatus includes a plurality of image reading chips. Each of the plurality of image reading chips includes, a pixel that includes a light receiving element which receives light and performs photoelectric conversion; a voltage boosting circuit that generates a transmission control signal for transmitting electric charges which are generated on the basis of the photoelectric conversion; and a reading circuit which generates an image signal on the basis of the electric charges which are transmitted. The voltage boosting circuit operates during a period in which the light receiving element receives the light and during a period in which the electric charges that are generated on the basis of the photoelectric conversion which is performed by the light receiving element, and stops an operation during a period in which the reading circuits of the other image reading chips output the image signals.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: July 9, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Takafumi Suzuki
  • Patent number: 10284583
    Abstract: An information processing system, having one or more information processing apparatuses, includes a data input unit configured to take as input first data being multidimensional; a dimension reduction unit configured to generate, based on the first data, second data representing a characteristic of the first data, the second data having a prescribed number of dimensions fewer than a number of dimensions of the first data; and a distinguishing unit configured to distinguish whether the first data is normal data or abnormal data by a semi-supervised anomaly detection, based on the first data and the second data.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: May 7, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Ryosuke Kasahara
  • Patent number: 10043844
    Abstract: A device for generating a ramp signal with a changing slope is disclosed. The device may comprise a processor configured to generate a variable signal. The device may also comprise a phase-locked loop (PLL) circuit configured to receive the variable signal and a reference clock signal, generate a changing ramp clock signal based on the variable signal and the reference clock signal, and output the generated changing ramp clock signal as an input of an analog-to-digital-converter (ADC) circuit.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: August 7, 2018
    Assignee: Cista System Corp.
    Inventors: Wenhao Qiao, Guangbin Zhang, Dennis Tunglin Lee
  • Patent number: 10032258
    Abstract: Embodiments of the present invention provide systems, methods, and computer storage media directed towards automatic selection of regions for blur kernel estimation. In one embodiment, a process divides a blurred image into a regions. From these regions a first region and a second region can be selected based on a number of edge orientations within the selected regions. A first blur kernel can then be estimated based on the first region and a second blur kernel can be estimated for the second region. The first and second blur kernel can then be utilized to respectively deblur a first and second portion of the image to produce a deblurred image. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: July 24, 2018
    Assignee: Adobe System Incorporated
    Inventors: Sunghyun Cho, Jue Wang, Jen-Chan Chien, Dong Feng
  • Patent number: 9711546
    Abstract: An image sensor pixel includes a first photodiode and a second photodiode disposed in a semiconductor material. The first photodiode has a first doped region, a first lightly doped region, and a first highly doped region. The second photodiode has a second full well capacity substantially equal to a first full well capacity of the first photodiode, and includes a second doped region, a second lightly doped region, and a second highly doped region. The image sensor pixel also includes a first microlens optically coupled to direct a first amount of image light to the first photodiode, and a second microlens optically coupled to direct a second amount of image light to the second photodiode. The first amount of image light is larger than the second amount of image light.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: July 18, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jeong-Ho Lyu, Sohei Manabe
  • Patent number: 9608019
    Abstract: An image sensor pixel for use in a high dynamic range image sensor includes a first photodiode and a second photodiode. The first photodiode include a first doped region, a first lightly doped region, and a first highly doped region disposed between the first doped region and the first lightly doped region. The second photodiode disposed in has a second full well capacity substantially equal to a first full well capacity of the first photodiode. The second photodiode includes a second doped region, a second lightly doped region, and a second highly doped region disposed between the second doped region and the second lightly doped region. A first aperture sizer is disposed above the second photodiode to limit image light received by the second photodiode to a second amount that is less than a first amount of image light received by the first photodiode.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: March 28, 2017
    Assignee: OmniVision Technologies, Inc.
    Inventors: Jeong-Ho Lyu, Sohei Manabe
  • Patent number: 9565378
    Abstract: An imaging device includes a solid-state imaging device configured to include a plurality of pixels, the solid-state imaging device outputting subject data according to a pixel signal output by the pixel of an image region on which subject light is incident and optical black (OB) data according to the pixel signal output by the pixel of a constantly shielded OB region of a plurality of columns or rows located on an end of the image region as image data, and an imaging processing unit configured to output pre-processed image data obtained by performing black level correction on partial subject data included in the image data using the same OB data included in the image data output by the solid-state imaging device.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: February 7, 2017
    Assignee: OLYMPUS CORPORATION
    Inventors: Ayahiko Takahashi, Yoshinobu Tanaka, Takashi Yanada, Akira Ueno
  • Patent number: 9118851
    Abstract: A method of controlling a pixel array includes reading out image data from pixel cells of a row i of the pixel array with second transfer control signals that are coupled to be received by transfer transistors included in the pixels cells of the row of the pixel array that is being read out. Exposure times for pixel cells are independently controlled in other rows of the pixel array that are not being read out with first transfer control signals coupled to be received by transfer transistors included in the pixel cells in the other rows of the pixel array that are not being read out while the image data is read out from the pixel cells of row i of the pixel array.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: August 25, 2015
    Assignee: OmniVision Technologies, Inc.
    Inventors: Tiejun Dai, Jian Guo
  • Patent number: 9041837
    Abstract: An image sensor for an electronic device. The image sensor includes a first light sensitive element for collecting charge and having a first saturation value and a well surrounding at least a portion of the first light sensitive element and having a first doping concentration. The image sensor further includes a bridge region defined in the well and in communication with the first light sensitive element and having a second doping concentration and a blooming node in communication with the bridge region and a voltage source. The second doping concentration is less than the first doping concentration and when light sensitive element collects sufficient charge to reach the first saturation value, additional charge received by the light sensitive element travels to the blooming node via the bridge region.
    Type: Grant
    Filed: March 5, 2013
    Date of Patent: May 26, 2015
    Assignee: Apple Inc.
    Inventor: Xiangli Li
  • Patent number: 8994875
    Abstract: The present invention relates to a camera module having an auto focus function, the module including a lens unit having at least one lens, a barrel into which the lens unit is inserted, and connected by a VCM (Voice Coil Motor) actuator, and an image sensor discretely positioned from the lens unit to convert light having passed the lens unit to an electrical signal, where the VCM actuator includes a gap of a reference distance position value which is a position of an object catering to a lens focal length according to the camera module, and information on a focus-met lens position value, and adjusts an initial position of the lens by using the gap of reference distance position value of the lens position value during operation of the camera module.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: March 31, 2015
    Assignee: LG Innotek Co., Ltd.
    Inventor: Changhyun Kim
  • Patent number: 8994855
    Abstract: A method for controlling a pixel including at least one photodiode capable of being connected to a sense node, the method including the steps of: a) at the beginning and at the end of a first integration period included within a second integration period, controlling the pixel to transfer the charges stored in the photodiode above a first threshold onto the sense node; and b) at an intermediate time between the beginning of the second period and the beginning of the first period, controlling the pixel to transfer the charges stored in the photodiode above the first threshold onto the sense node.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: March 31, 2015
    Assignee: STMicroelectronics (Grenoble 2) SAS
    Inventor: Benoit Deschamps
  • Publication number: 20150036028
    Abstract: Provided is a solid-state image sensor, including: a pixel unit including a valid pixel area and an optical-black pixel area; a plurality of reading units configured to read pixel values of a large number of pixels of the pixel unit line by line; a plurality of correction data generating units corresponding to the plurality of reading units, respectively, each of the plurality of correction data generating units being configured to generate correction data based on pixel values read from the optical-black pixel area out of the pixel values read from the pixel unit by the corresponding reading unit line by line; and a correcting unit configured to correct pixel values read from the valid pixel area out of the pixel values read from the pixel unit by the reading unit line by line based on the correction data generated by the corresponding correction data generating unit.
    Type: Application
    Filed: July 24, 2014
    Publication date: February 5, 2015
    Inventor: Hiromichi Tanaka
  • Publication number: 20150009369
    Abstract: In an imaging method according to the present invention, in an imaging device including a taking lens having a plurality of regions each with an independent characteristic and an image pickup element having a plurality of light-receiving sensors provided so as to correspond to the plurality or regions, the plurality of light-receiving sensors performing pupil division of a light beam passing through any of the plurality of regions for selective light-receiving, from an imaging signal from a light-receiving sensor corresponding to one region of the plurality of regions, an image corresponding to the one region is generated. When the generated image is corrected, an influence of a light beam passing through a region other than the one region is removed from the image generated so as to correspond to the one region.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 8, 2015
    Inventor: SHUJI ONO
  • Publication number: 20140340548
    Abstract: A reference pixel sensor cell (e.g., global shutter) with hold node for leakage cancellation, methods of manufacture and design structure is provided. A pixel array includes one or more reference pixel sensor cells dispersed locally throughout active light sensing regions. The one or more reference pixel sensor cells provides a reference signal used to correct for photon generated leakage signals which vary by locality within the active light sensing regions.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: James W. ADKISSON, John J. ELLIS-MONAGHAN, Richard J. RASSEL
  • Patent number: 8849023
    Abstract: The present invention relates to an apparatus and method of correcting a chromatic aberration of an image, and in particular, to an apparatus and method of correcting a chromatic aberration of an image that can correct a general chromatic aberration of an edge or an extreme chromatic aberration, such as a purple fringe, in an image. An apparatus for correcting a chromatic aberration of an image according to an embodiment of the present invention includes an edge detection unit detecting an edge of an input image, a level calculation unit calculating a chromatic aberration level of the detected edge, and a correction unit correcting the edge using different weighted values according to the calculated chromatic aberration level.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: September 30, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joo-young Kang, Hyun-wook Ok, Seong-deok Lee, Hyun-hwa Oh
  • Patent number: 8817132
    Abstract: A method for synchronizing a first circuit to an electro-optical sensor is disclosed. The method generally includes steps (A) to (D). Step (A) may generate with the first circuit a configuration signal that conveys a request to capture at least one frame of a plurality of periodic frames. Step (B) may receive the periodic frames at a second circuit from the electro-optical sensor. Step (C) may discard a first frame of the periodic frames where the first frame precedes the request. Step (D) may store a plurality of active pixels in a second frame of the periodic frames in a memory where the second frame follows the request. The second circuit is generally a hardware implementation.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: August 26, 2014
    Assignee: Ambarella, Inc.
    Inventor: Weining Li
  • 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: 8792026
    Abstract: A video disk player includes (i) a disk reading section for reading out video data, a program, synchronization timing information from an optical disk; (ii) a clock for generating a clock signal; (iii) a decoder for converting, in accordance with the clock signal, the video data into decompressed video data for reproduction output; (iv) a video reproducing section including a synchronization control section for transmitting, in accordance with the clock signal, a synchronization control signal to the program executing section at a timing specified by a field timing contained in the synchronization timing information, and (v) a program executing section for executing a program in accordance with the synchronization control signal received from the synchronization control section. This makes it possible to efficiently execute the program in synchronization with reproduction of AV data or the like.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: July 29, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Jiro Kiyama, Hideaki Kizuki, Katsushi Ohizumi
  • Patent number: 8749671
    Abstract: A video disk player includes (i) a disk reading section for reading out video data, a program, synchronization timing information from an optical disk; (ii) a clock for generating a clock signal; (iii) a decoder for converting, in accordance with the clock signal, the video data into decompressed video data for reproduction output; (iv) a video reproducing section including a synchronization control section for transmitting, in accordance with the clock signal, a synchronization control signal to the program executing section at a timing specified by a field timing contained in the synchronization timing information, and (v) a program executing section for executing a program in accordance with the synchronization control signal received from the synchronization control section. This makes it possible to efficiently execute the program in synchronization with reproduction of AV data or the like.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: June 10, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Jiro Kiyama, Hideaki Kizuki, Katsushi Ohizumi
  • Patent number: 8749693
    Abstract: A light reduction device for adjusting an amount of light reaching an imaging device includes: a light shielding plate in which light shielding parts are discretely formed for blocking the light, and a light transmission part is formed for transmitting the light; a first light reduction plate in which light reduction parts are discretely formed for reducing the amount of the light passing through, and a light transmission part is formed for transmitting the light; and a moving unit configured to move at least one of the light shielding plate and the first light reduction plate in a first direction which intersects with an incident direction of the light, in which the light shielding plate and the first light reduction plate overlap each other at least in part, when viewed from the incident direction of the light.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: June 10, 2014
    Assignee: Panasonic Corporation
    Inventors: Shinji Uchida, Yoshiaki Sugitani
  • Patent number: 8743220
    Abstract: A system and method captures a moving image of a scene that can be more readily de-blurred as compared to images captured through other methods operating on equivalent exposure-time intervals. Rather than stopping and starting the light measurement during the exposure-time interval, photo-generated current is switched between multiple charge storage sites in accordance with a temporal switching pattern that optimizes the conditioning of the solution to the inverse blur transform. By switching the image intensity signal between storage sites all of the light energy available during the exposure-time interval is transduced to electronic charge and captured to form a temporally decomposed representation of the moving image.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: June 3, 2014
    Assignee: Cognex Corporation
    Inventors: E. John McGarry, William M. Silver
  • Patent number: 8723990
    Abstract: A pixel of an image sensor includes only two signal lines per pixel, a pinned photodiode for sensing light, a floating base bipolar transistor, and no reset and address transistors. The floating base bipolar transistor provides the pixel with a gain, which can increase pixel sensitivity and reduce noise. The pixel also incorporates a vertical blooming control structure for an efficient blooming suppression. The output terminals of the pixel are coupled to a common column output line terminated by a special current sensing correlated double sampling circuit, which is used for subtraction of emitter leakage current. Based on this structure, the pixel has high sensitivity, high response uniformity, low noise, reduced size, and efficient layout.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: May 13, 2014
    Assignee: Intellectual Ventures II LLC
    Inventor: Jaroslav Hynecek
  • Patent number: 8648939
    Abstract: A solid-state imaging device includes: a normal pixel disposed in a pixel section capable of performing a global shutter, and including at least a photoelectric conversion part and a memory part adjacent to the photoelectric conversion part; and a leak-light correcting pixel disposed in the pixel section to correct degradation of an image quality originated from leak light leaked into the memory part.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: February 11, 2014
    Assignee: Sony Corporation
    Inventor: Jun Okuno
  • Patent number: 8643073
    Abstract: A plurality of pixels PX include effective pixels and optical black pixels. Signal lines VL are provided corresponding to each column of the pixels PX and supplied with output signals of the pixels PX of the corresponding column. Clip transistors CL are provided corresponding to the respective signal lines VL and limit a potential of the corresponding vertical signal lines VL based on a gate potential. At least in a predetermined operating mode, a potential Vclip_dark is supplied to a gate of one of the clip transistors CL corresponding to at least one pixel column formed of the optical black pixels when reading a noise level from the pixels PX corresponding to the clip transistors CL and when reading a data level from the pixels PX corresponding to the clip transistors CL.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 4, 2014
    Assignee: Nikon Corporation
    Inventor: Toru Shima
  • Patent number: 8564698
    Abstract: An image correcting apparatus and method are disclosed to correct a smear vertical line on an image captured by a camera. The method for correcting an image comprising: detecting image data corresponding to a vertical line of a specific image and having hue values greater than a hue reference value; and correcting the detected image data.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: October 22, 2013
    Assignee: LG Electronics Inc.
    Inventor: Bang-Young Goh
  • Patent number: 8542300
    Abstract: Methods are disclosed for correcting vertical line streaks in an interline or full-frame CCD. The method includes the step of subtracting an overscan row from each row of a previous image or from each row of a next image, such that each row of the final image contains the same readout smear effect and such that readout overscan rows contain the same smear information as each row of the final image. The method is also described for use with frame transfer CCDs.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: September 24, 2013
    Assignee: Gatan, Inc.
    Inventors: Paul Mooney, Chengye Mao
  • Patent number: 8542281
    Abstract: This invention provides a system and method captures a moving image of a scene that can be more readily de-blurred as compared to images captured through the above-referenced and other known methods operating on an equivalent exposure-time interval. Rather than stopping and starting the integration of light measurement during the exposure-time interval, photo-generated current is switched between multiple charge storage sites in accordance with a temporal switching pattern that optimizes the conditioning of the solution to the inverse blur transform. By switching the image intensity signal between storage sites all of the light energy available during the exposure-time interval is transduced to electronic charge and captured to form a temporally decomposed representation of the moving image.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: September 24, 2013
    Assignee: Cognex Corporation
    Inventors: E. John McGarry, William M. Silver
  • Patent number: 8537272
    Abstract: A method, system and computer-usable medium for determining an optimal shutter fluttering sequence. The disclosed approach is based on the use of shutter flutter technology, which means that an image can be acquired in such a manner as to encode all information about the moving subject. The disclosed approach involves determining a shutter's fluttering pattern that optimally encodes information at all frequencies. The disclosed approach involves an optimization method for finding a shutter fluttering pattern that maximizes the minimum value of a function defining the plurality of flutter shutter sequences over a frequency domain. The disclosed approach involves eliminating all flutter shutter sequences that contain lost frequencies. The objective of the disclosed approach is to select an optimal flutter shutter sequence for implementation with a flutter shutter camera.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: September 17, 2013
    Assignee: Honeywell International Inc.
    Inventors: Jan Jelinek, Scott McCloskey
  • Patent number: 8520102
    Abstract: A solid-state imaging apparatus is provided that including a plurality of amplifiers each one amplifying a signal from each one of a plurality of pixels. The amplifier including first and second field effect transistors, gate electrodes of which are connected to the same voltage node (VBL); and a first wiring connected between the voltage node and the gate electrodes of the first and second field effect transistors. The first and second field effect transistors are arranged in a direction perpendicular to a direction in which the plurality of amplifiers is arranged. Material of the first wiring has a resistivity smaller than that of the gate electrodes of the first and second field effect transistors.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: August 27, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanori Ogura, Yuichiro Yamashita, Toru Koizumi
  • Patent number: 8488026
    Abstract: An image capturing system includes: a first noise reduction unit which roughly removes the effects of an edge component by performing edge-preserving adaptive noise reduction processing on a target pixel within a local region including the target pixel and the neighboring pixels extracted from an image signal acquired from a CCD; a noise estimation unit which dynamically estimates the noise amount with respect to the target pixel based upon the target pixel value thus subjected to the noise reduction processing by the first noise reduction unit; and a second noise reduction unit which performs noise reduction processing on the target pixel based upon the target pixel value thus subjected to the noise reduction processing by the first noise reduction unit and the noise amount thus estimated by the noise estimation unit.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: July 16, 2013
    Assignee: Olympus Corporation
    Inventor: Takao Tsuruoka
  • Publication number: 20130176466
    Abstract: A device and a method for reducing a smear effect. The device comprises an image sensing module and a smear reduction module. The image sensing module captures an image and optical black data generated from the optical area of the image sensing module. The smear reduction module searches the optical black data generated in the lower boundary of the optical black area corresponding to which generated in the upper boundary of the optical black area according to coordinates of the optical black data. Thereby, the smear reduction module can compute an offset line representing an offset of the optical black data, and the smear reduction module compensates the smear effect occurring in the image.
    Type: Application
    Filed: March 7, 2012
    Publication date: July 11, 2013
    Applicant: ALTEK CORPORATION
    Inventors: Che-Lun Chuang, Chung-Ta Wu, Hsin-Te Wang, Yi-Hsien Lin
  • Patent number: 8483281
    Abstract: Apparatus, systems and techniques based on an integer transform for encoding and decoding video or image signals, including transform of encoding and decoding of image and video signals and generation of an order-2N transform W from an order-N transform T in the field of image and video coding. For example, a retrieving unit is configured to retrieve an order-N transform T, where N is an integer; a deriving unit is configured to derive an order-2N transform W from the retrieved order-N transform T, and a transforming unit configured to generate an order-2N data Z using the derived transform W.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: July 9, 2013
    Assignee: The Chinese University of Hong Kong
    Inventor: Wai Kuen Cham
  • Patent number: 8462244
    Abstract: A method, of selectively reading less than all information from an image sensor for which member-pixels of a subset of the entire set of pixels are individually addressable, may include: sampling information from a targeted member-pixel of the subset without having to read information from the entire set of pixels; and adaptively reading information from another one or more but fewer than all member pixels of the entire set based upon the sampling information without having to read all pixels on the image sensor. A related digital camera may include features similar to elements of the method.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: June 11, 2013
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Heather N Bean, Mark N Robins
  • Patent number: 8456551
    Abstract: A photographing apparatus including an imaging device configured to obtain a first image of a subject captured with a long shutter exposure time and a second image of the subject captured by setting a short shutter exposure time, wherein the long exposure time is greater than the short exposure time; and a live-view generation unit configured to generate a smear-corrected third image by subtracting pixel values of the second image from the corresponding pixel values of the first image. A smear correction method of a photographing apparatus, the method including capturing a first image of a subject by setting a long electrical shutter exposure time; capturing a second image of a subject by setting a short electrical shutter exposure time; and generating a smear-corrected third image by subtracting pixel values of the second images from the corresponding pixel values of the first image.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 4, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byeong-chan Park, Sang-ryoon Son
  • Patent number: 8451356
    Abstract: An example embodiment may include a system and method for correcting luminance disturbances in an imaging device. The example method can detect a luminance level disturbance in the output of an imager and provide a signal to a digital signal processor (DSP) that a luminance disturbance was detected, before the DSP begins processing the output of the imager. The DSP can then correct or adjust the resulting output to compensate for the luminance disturbance.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: May 28, 2013
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Juan A. Martinez, Andrew M. Berger
  • Patent number: 8441559
    Abstract: An imaging apparatus is provided for reducing noise which is derived from random noise contained in a correction signal used for correcting an image data and is newly generated on correction of the image data. The imaging apparatus drives vertical transfer registers with no signal charge from photoelectric transducers read out to the vertical transfer registers to obtain and store a correction signal into a field memory. The apparatus subtracts the correction signal from the image data by a subtractor.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: May 14, 2013
    Assignee: Panasonic Corporation
    Inventors: Yukihiro Tanizoe, Yasutoshi Yamamoto, Yoshimasa Okabe, Hiromasa Funakoshi
  • Patent number: 8436922
    Abstract: An image pickup apparatus which prevents distortion of an image captured using an image pickup element employing an XY reading method and which suppresses degradation of the captured image caused by light leakage to pixel circuits is provided. Transfer transistors and reset transistors in all rows are turned on and photodiodes and FDs are reset before exposure of the photodiodes is started. Then, after a predetermined exposure time has been elapsed, the transfer transistors in all the rows are turned on and signal charges of the photodiodes of all pixels are transmitted to the FDs. When the exposure is terminated, a mechanical shutter is closed so as to block leakage light, and voltages corresponding to the signal charges transmitted from the photodiodes are successively read from the FDs on a row-by-row basis.
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 7, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshikazu Yanai
  • Patent number: 8390704
    Abstract: A method for determining a deblurred image, the method implemented at least in part by a data processing system and comprising: receiving a sharp image of a scene captured with a short exposure time; receiving a blurred image of the scene captured with a longer exposure time than the sharp image, wherein the blurred image has a higher level of motion blur and a lower level of image noise than the sharp image; determining a blur kernel responsive to the sharp image and the blurred image; determining one or more reference differential images responsive to the sharp image; determining a deblurred image responsive to the blurred image, the blur kernel and the one or more reference differential images; and storing the deblurred image in a processor-accessible memory system.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: March 5, 2013
    Assignee: Eastman Kodak Company
    Inventors: Sen Wang, Hou Tingbo, Rodney L. Miller
  • Patent number: 8390714
    Abstract: When making a potential of a floating node 0V at the time of nonselection, electrons leak from the floating node to a photodiode and noise is generated. A MOS type solid-state imaging device comprised of unit pixels 10, each having a photodiode 11, a transfer transistor 12 for transferring a signal of this photodiode 11 to a floating node N11, an amplifier transistor 13 for outputting a signal of the floating node N11 to a vertical signal line 22, and a reset transistor 14 for resetting the floating node N11, arranged in a matrix, wherein, as a buffer final stage 29 for driving a drain line 23, a buffer final stage having an inverter configuration formed by arranging a P-type MOS transistor on a ground side is used, thereby making the potential of the floating node N11 for example 0.5V at the time of nonselection and preventing electrons from leaking to the photodiode 11 through the transfer transistor 12.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: March 5, 2013
    Assignee: Sony Corporation
    Inventor: Keiji Mabuchi
  • Patent number: 8379120
    Abstract: A method for determining a deblurred image comprising: receiving a blurred image of a scene; receiving a blur kernel; initializing a candidate deblurred image; determining a plurality of differential images representing differences between neighboring pixels in the candidate deblurred image; determining a combined differential image by combining the differential images; repeatedly updating the candidate deblurred image responsive to the blurred image, the blur kernel, the candidate deblurred image and the combined differential image until a convergence criterion is satisfied; and storing the final candidate deblurred image in a processor-accessible memory system.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: February 19, 2013
    Assignee: Eastman Kodak Company
    Inventors: Sen Wang, Tingbo Hou, Rodney L. Miller
  • Patent number: 8373777
    Abstract: An image processing apparatus includes a region extracting section that extracts a first predetermined region including a target pixel in a current frame and a second predetermined region including a pixel located at the same position as the target pixel in a previous frame, a motion vector calculating section that calculates a motion vector of the first predetermined region with respect to the previous frame based on part or all of the pixels in the first predetermined region and part of the pixels in the second predetermined region, a filter coefficient determining section that determines a filter coefficient for a plurality of pixels in the second predetermined region based on the motion vector, and a noise reducing section that reduces noise in the target pixel based on the plurality of pixels in the second predetermined region and the filter coefficient.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: February 12, 2013
    Assignee: Olympus Corporation
    Inventor: Hiroshi Sasaki
  • Patent number: 8339482
    Abstract: An image capturing apparatus comprises: an image sensor having an effective pixel area where plural pixels not shield from light are two-dimensionally arranged, and a first optical black area and a second optical black area including pixels shielded from light provided on the both sides of the effective pixel area; and a correction unit to, upon incident of high luminance light on the image sensor, correct an output signal of a pixel between a high luminance portion as a pixel part on which the high luminance light is incident in the effective pixel area and the first optical black area using an output signal of the first optical black area, and correct an output signal of a pixel between the high luminance portion and the second optical black area, using an output signal of the second optical black area.
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: December 25, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Teruyuki Okado
  • Patent number: 8335399
    Abstract: An image processing apparatus which corrects input image data based on the image data and foreign substance information containing information on the position and size of a foreign substance includes a correction unit which corrects the influence of the shadow of the foreign substance contained in the image data, based on the image data and the foreign substance information, a still image uniformity determination unit which determines the uniformity of an image in a region around the foreign substance, a moving image uniformity determination unit which determines the uniformity of the image in the region around the foreign substance based on a determination criterion different from one applied to a still image, and a control unit which inhibits correction of the image data when the still image uniformity determination unit or moving image uniformity determination unit determines that the uniformity is less than or equal to a predetermined value.
    Type: Grant
    Filed: September 10, 2009
    Date of Patent: December 18, 2012
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Gyotoku
  • Patent number: 8264580
    Abstract: A solid-state imaging device is disclosed. The device includes: a pixel array unit in which unit pixels including photoelectric conversion elements are two-dimensionally arranged and a first signal and a second signal are outputted to a signal line as a pixel signal; a signal processing unit including a variable gain amplifier, and an analog/digital converter; a signal supply unit supplying a reference signal; plural memory units holds the reference signal passed through the signal processing unit so as to correspond to the plural gains respectively when the variable gain amplifier is set at the plural gains respectively; and a correction unit subtracting the reference signal held in the plural memory units from the pixel signal outputted from each unit pixel in an active pixel area of the pixel array unit and passed through the signal processing unit when the variable gain amplifier is set at the plural gains respectively.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: September 11, 2012
    Assignee: Sony Corporation
    Inventors: Tomonori Mori, Nobuo Nakamura
  • Patent number: 8259196
    Abstract: A comparator includes: a signal input terminal; a capacitor connected between the signal input terminal and a signal line; and a switching transistor for calibration which is turned on/off to periodically charge the capacitor with a voltage difference between a signal voltage and an operating point of the comparator, wherein an on-resistance of the switching transistor which is turned on when performing the charging is dynamically controlled by a control pulse having a limited amplitude.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 4, 2012
    Assignee: Sony Corporation
    Inventors: Rei Yoshikawa, Atsushi Suzuki, Keiji Yamaguchi
  • Patent number: 8237827
    Abstract: Provided are a digital photographing apparatus, and associated method and recording medium with method instructions, by which smear generation during moving picture photographing or moving picture display is effectively reduced. The digital photographing apparatus includes an imaging device having an effective area that generates first image data from incident light and an optical black area that is disposed outside the effective area and extends horizontally; a first smear correction unit that corrects the first image data generated by the effective area by using smear data generated by the optical black area, thereby acquiring second image data corresponding to a second frame image comprising less smear than a first frame image corresponding to the first image data; a unit corrects the second image data thereby acquiring third image data.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-sik Yu, Byeong-chan Park, Sang-ryoon Son