Testing Of Camera Patents (Class 348/187)
  • Patent number: 10728479
    Abstract: An image sensing device is provided to provide a same effect as in performing testing associated with different integration or exposure times without changing an exposure or integration time. The image sensing device includes an active pixel region configured to include a plurality of active pixels, a dummy pixel region located at an outer wall of the active pixel region, configured to include a plurality of dummy pixels, and a light quantity control pattern configured to allow different quantities of light to be incident upon the respective dummy pixels.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: July 28, 2020
    Assignee: SK hynix Inc.
    Inventors: Won Jun Lee, Bo Kwang Hwang
  • Patent number: 10706578
    Abstract: A non-transitory computer-readable medium stores a program. The program causes the computer to: acquire photographed image data which is generated by photographing, in an imaging apparatus, a photographed object indicating multiple reference points; acquire pieces of position information which indicate positions of the multiple reference points in the photographed image; map pieces of relative information to the respective reference points by analyzing relative positional relations between the multiple reference points in accordance with a first method; map the pieces of relative information to the respective reference points by analyzing relative positional relations between the multiple reference points in accordance with a second method; and determine a certain reference point as a reference point to be excluded, in a case that a first mapping relation is different from a second mapping relation.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 7, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Akidi Yoshida, Tomohiko Hasegawa
  • Patent number: 10679071
    Abstract: A method for capturing digital images during vehicle collisions includes: detecting, by a computer device, an impact with a vehicle; controlling, by the computer device and based on the detecting, at least one digital camera to capture images of an area around the vehicle; and transmitting, by the computer device, the images to a server that is remotely located relative to the vehicle.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 9, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Evelyn R. Anderson, Michael Bender, Rhonda L. Childress
  • Patent number: 10664984
    Abstract: A distance measuring apparatus includes: an image pickup element in which a plurality of pixels receives light of an image are two-dimensionally arrayed; and an acquiring unit acquires information relating to a distance to an object based on an output signal of the image pickup element which each pixel line is constituted by pixels which receive beams passing through a same pupil region of the imaging optical system, and wherein the acquiring unit (1) acquires a first image displacement amount from output signals of at least two pixel lines which receive beams passing through a same pupil region, (2) acquires a second image displacement amount from output signals of at least two pixel lines which receive beams passing through different pupil regions, and (3) acquires the information relating to the distance to the object based on the first image displacement amount and the second image displacement amount.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: May 26, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Makoto Oigawa
  • Patent number: 10621753
    Abstract: An extrinsic camera calibration system (ECCS) comprising a surround view system (SVS) interface connecting the ECCS to the SVS. The SVS comprises four cameras mounted to front, back, left, and right sides of a vehicle respectively that are front, back, left, and right cameras, as well as an imaging interface at which images from the four cameras are output. A calibration pattern that comprises a set of features is used by an extrinsic calibration processor. A network interface is connected to the four cameras via the imaging interface. The processor receives, from each camera, an image comprising captured features from the calibration pattern. It determines and stores extrinsic calibration parameters (ECPs) for each camera that map coordinates of the features to camera coordinates and that are usable for subsequent normal operation of the cameras, the ECPs being determined from the image features.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 14, 2020
    Assignee: Intel IP Corporation
    Inventors: Koba Natroshvili, Kay-Ulrich Scholl
  • Patent number: 10582186
    Abstract: An occurrence of an event triggering a dynamic recalibration of cameras in a computing device can be detected. In response, respective images of an object can be acquired using each of at least three cameras in the computing device at approximately a same time. Using at least three distinct pairs of the at least three cameras, a respective apparent distance between the computing device and the object can be determined. The respective apparent distances can be analyzed to isolate at least one misaligned camera.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: March 3, 2020
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventor: Leo Benedict Baldwin
  • Patent number: 10564523
    Abstract: A camera module reinforced against excessive torque forces when being installed includes a lens bracket and a lens barrel. The lens bracket includes an internally-threaded receiving barrel, the lens bracket having external threads around its circumference. The external threads match the internal threads, and lower end of the lens bracket includes an annular groove, a resilient ring being received in the annular groove.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: February 18, 2020
    Assignee: TRIPLE WIN TECHNOLOGIES (SHENZHEN) CO. LTD.
    Inventors: Kun Li, Shin-Wen Chen, Hao-Zhong Liu, Long-Fei Zhang
  • Patent number: 10559090
    Abstract: A method for calculating a dual-camera relative position provided in the present disclosure includes obtaining M groups of dual-camera images, where each group of dual-camera images in the M groups includes two images obtained by photographing a same scene by dual cameras at the same time, screening the M groups of dual-camera images to obtain Q groups of dual-camera images that can be used to calculate the dual-camera relative position, obtaining dual-camera relative position parameters corresponding to each group of dual-camera images in the Q groups according to each group of dual-camera images in the Q groups, and obtaining optimal dual-camera relative position parameters from the Q groups of dual-camera relative position parameters. Therefore, the dual-camera relative position can be calculated when a scene is relatively difficult to recognize.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 11, 2020
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Zhongwei Tang, Huanhuan Ao, Kang Qian, Wei Luo
  • Patent number: 10552984
    Abstract: A capture device calibration system accesses a plurality of datasets that are synchronously captured by a set of capture devices. The capture devices are progressively relocated to form a plurality of different positional configurations each implementing a formation that includes a center position and one or more peripheral positions. The capture device calibration system determines three dimensional (“3D”) locations of features of a calibration object positioned in front of the formation based on different representations of the calibration object captured by the set of capture devices from different view angles associated with the center position and the one or more peripheral positions included within the formation. Based on the determined 3D locations of the features of the calibration object, the capture device calibration system determines a set of intrinsic parameter values for one or more of the capture devices in the set of capture devices. Corresponding methods are also disclosed.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: February 4, 2020
    Assignee: Verizon Patent and Licensing I nc.
    Inventor: Sergey Virodov
  • Patent number: 10546390
    Abstract: A method for calibrating an imaging device includes calculating attitude information of the imaging device relative to a screen based at least in part on an image captured by the imaging device, generating a calibration signal based at least in part on the attitude information, displaying the calibration signal on the screen, and displaying a guiding signal on the screen.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: January 28, 2020
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Yu Shen, Ang Liu, Ketan Tang
  • Patent number: 10509935
    Abstract: Methods and systems for auto-tuning a handheld scanning device that can account for changes in the orientation between the handheld scanning device and a presented symbol can include capturing a first image containing a presented symbol, recording an orientation parameter and parameters associated with capturing the first image containing the presented symbol, capturing a subsequent image containing the presented symbol, recording an orientation parameter of the presented symbol contained in the subsequent image, comparing the orientation parameter of the symbol contained in the subsequent images to the orientation parameter of the presented symbol contained in the subsequent image, determining if the orientation parameter of the presented symbol contained in the subsequent images is substantially similar to the orientation parameter of the symbol contained in the first image, and recording parameters associated with capturing the subsequent images containing the presented symbol.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: December 17, 2019
    Assignee: COGNEX CORPORATION
    Inventors: Earle Stokes, James A. Negro
  • Patent number: 10510163
    Abstract: According to an embodiment, an image processing apparatus includes a matching unit configured to perform stereo matching processing on two images obtained through imaging using two cameras, an error map creating unit configured to create an error map indicating a displacement amount of the two images in a direction orthogonal to a search line for the two images subjected to the stereo matching processing, and a parallelization parameter error determining unit configured to determine whether or not there is an error of rectification which parallelizes the two images, based on the error map.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: December 17, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yutaka Oki
  • Patent number: 10490137
    Abstract: Disclosed are a backlight brightness adjustment method and apparatus. The backlight brightness adjustment method includes the following steps: dividing a backlight area of a liquid crystal display (LCD) into multiple sub-areas, acquiring maximum pixel brightness M of each sub-area, and acquiring average pixel brightness A according to the maximum pixel brightness M; classifying the brightness into multiple brightness ranges, and separately adjusting duty cycles and drive currents of a backlight source in different brightness ranges according to the average pixel brightness A and the maximum pixel brightness M; determining, according to the maximum pixel brightness M of each sub-area, a brightness range of the sub-area, and acquiring an adjusted duty cycle and drive current that correspond to the brightness range of each sub-area; and correspondingly controlling illumination brightness of each sub-area by using the adjusted duty cycle and drive current. The present invention improves contrast of an LCD.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: November 26, 2019
    Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTD.
    Inventors: Huadong Fu, Zhe Huang
  • Patent number: 10482371
    Abstract: A transaction card construction and computer-implemented methods for a transaction card are described. The transaction card has vector-formatted visible information applied by a laser machining system. In some embodiments, systems and methods are disclosed for enabling the sourcing of visible information using a scalable vector format. The systems and methods may receive a request to add visible information to a transaction card and capture an image of the visible information. The systems and methods may capture data representing the image. The systems and methods may also determine an ambient color saturation of the image. Further, systems and methods may translate the image based on the ambient color saturation of the image. The systems and methods may also map the translated image to a bounding box and convert the mapped image into vector format. In addition, the systems and methods may provide the converted image to a laser machining system.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 19, 2019
    Assignee: Capital One Services, LLC
    Inventors: Joshua Edwards, Jiawei Zhao
  • Patent number: 10445898
    Abstract: Various aspects of a system and a method for camera calibration by use of a rotatable three-dimensional (3-D) calibration object are disclosed herein. In accordance with an embodiment, the system includes a first electronic device, which determines a rotation pattern of the 3-D calibration object, based on a set of pre-selected images. The set of pre-selected images includes the 3-D calibration object captured at pre-defined viewing angles. Control information is communicated by the first electronic device to a second electronic device associated with the 3-D calibration object to rotate the 3-D calibration object in accordance with the determined rotation pattern. A plurality of image frames of the 3-D calibration object are captured to calibrate intrinsic and/or extrinsic camera parameters of the first electronic device.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: October 15, 2019
    Assignee: SONY CORPORATION
    Inventors: Cheng-Yi Liu, Alexander Berestov
  • Patent number: 10447995
    Abstract: Methods and systems for collecting camera calibration data using wearable devices are described. An augmented reality interface may be provided at a wearable device. Directions for a user to present a calibration target to a camera may be presented at the augmented reality interface. Calibration data collected by the camera viewing the calibration target may be received. Existing calibration data for the camera may be validated based at least in part on the collected calibration data.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 15, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: James Christopher Curlander, Gur Kimchi, Barry James O'Brien, Jason Leonard Peacock
  • Patent number: 10417816
    Abstract: A method for digital environment reconstruction, including: capturing data using an onboard vehicle system; determining a vehicle event and an event class of the vehicle event; extracting a set of agent parameters from the data; generating a virtual model based on the set of agent parameters; and providing the virtual model to a remote system.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 17, 2019
    Assignee: Nauto, Inc.
    Inventors: Ravi Kumar Satzoda, Suchitra Sathyanarayana, Michael Gleeson-May
  • Patent number: 10416443
    Abstract: There is provided with a light amount adjusting device. The light adjusting device has a plurality of optical filter elements. The plurality of optical filter elements have different light transmittances. Reflected light colors from the plurality of optical filter elements are substantially equal.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 17, 2019
    Assignee: Canon Denshi Kabushiki Kaisha
    Inventors: Yasuhiro Sato, Michio Yanagi
  • Patent number: 10359616
    Abstract: Provided are a microscope including a stage that is movable in a direction perpendicular to an observation optical axis and a camera capturing an image of a sample mounted on the stage; and a processor including hardware, wherein the processor is configured to implement: a generating unit configured to join the image of the sample to generate a joined image; a determination unit configured to determine whether the position of the stage is a position suitable for image capturing; a notifying unit configured to, when it is determined that the position is suitable, issue a notification to that effect; and a control unit configured to control the generating unit so as to join the image obtained by the camera when the moving speed of the stage is at or below a prescribed threshold, in the state where it is being notified that the position is suitable for image capturing.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 23, 2019
    Assignee: OLYMPUS CORPORATION
    Inventor: Masayuki Nakatsuka
  • Patent number: 10326979
    Abstract: A multi-camera imager (MCI) configured to register a first image of a scene acquired by a first camera comprised in the MCI to a second image of the same scene acquired by a second camera in the MCI based on adjusting a transform configured to register images of a calibration target acquired by the first and second cameras for a same fixed position and orientation of the calibration target using epipolar line segments in one of the cameras associated with image plane coordinates in the other of the cameras.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: June 18, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Michael Anthony Hall
  • Patent number: 10275971
    Abstract: An image captured for a currency note is preprocessed to correct pixel intensity values to expected pixel intensity values. The corrected image is passed to a currency validator for determining whether the currency not is genuine or non-genuine.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 30, 2019
    Assignee: NCR Corporation
    Inventor: Alan Greig
  • Patent number: 10212321
    Abstract: The present disclosure concerns a method for calibrating a plenoptic camera. The plenoptic camera includes a lenslet array placed between a main lens and a photosensor, the lenslet array having a plurality of lenslets. The method is remarkable in that it includes obtaining a white image W and a model that describes light scene occlusion induced by the main lens and each lenslet. For a given pixel of the photosensor, where the model is represented by a set of parameters, obtaining a first subset of parameters values from the set of parameters in the model and obtaining a second subset of parameters value from the set of parameters in the model by performing a maximum likelihood estimation method based on the model, the white image and the first subset of parameters values, and where a union of the first and the second subsets of parameters corresponds to the set of parameters.
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: February 19, 2019
    Assignee: INTERDIGITAL CE PATENT HOLDINGS
    Inventors: Wei Hu, Erik Reinhard, Mozhdeh Seifi
  • Patent number: 10198978
    Abstract: An optical evaluation workstation evaluates quality metrics (e.g., optical contrast) of optical elements of a HMD. The workstation includes a test pattern, an optical element feed assembly, a light source, a camera and a control module. The light source backlights the test pattern with diffuse light. The optical element feed assembly receives an optical element of a HMD and places the optical element at a first distance from the test pattern corresponding to a distance between the optics block in the HMD and an exit pupil of the HMD. The camera images the test pattern through the optical element and the camera is positioned at a second distance from the test pattern corresponding to a distance between the exit pupil and an electronic display in the HMD. The control module generates a test report for presentation to a user based on the evaluation of the optical element.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 5, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Evan Mark Richards, Matthew Robert Fulghum, Samuel Redmond D'Amico, Shizhe Shen
  • Patent number: 10176554
    Abstract: A camera is to capture an actual image of a target pattern. A calibration device is to render pixels in a synthetic image of the target pattern by tracing rays from the pixels to corresponding points on the target pattern based on model parameters for a camera. The calibration device is to also modify the model parameters to minimize a measure of distance between intensities of the pixels in the synthetic image and intensities of pixels in the actual image.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: January 8, 2019
    Assignee: GOOGLE LLC
    Inventor: David Gossow
  • Patent number: 10176594
    Abstract: An in-vehicle camera calibrator is provided. The in-vehicle camera calibrator includes a targeted camera selector for selecting a targeted camera requiring the calibration, an intermediate camera selector for selecting an intermediate camera which is the in-vehicle camera that intervenes between the targeted camera and a criterial camera, a first calibrator for, when the intermediate camera is not selected, calibrating the targeted camera based on a captured image of an overlapping region between the criterial camera and the targeted camera, and a second calibrator for, when the intermediate camera is selected, calibrating the intermediate camera based on a captured image of an overlapping region between the criterial camera and the targeted camera, and then calibrating the targeted camera based on a captured image between the calibrated intermediate camera and the targeted camera.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: January 8, 2019
    Assignee: DENSO CORPORATION
    Inventors: Hitoshi Tanaka, Youji Morishita, Muneaki Matsumoto
  • Patent number: 10171803
    Abstract: An image capturing apparatus according to an aspect of the present invention includes an image capturing unit, a display unit that displays an imaged picture imaged by the image capturing unit and a guide linearly shaped along a sagittal direction or a tangential direction in the imaged picture, the guide assisting imaging of a calibration image used for calibration in a point image restoration process, and a parameter calculation unit that calculates a parameter for the point image restoration process on the basis of the calibration image imaged by the image capturing unit with assistance from the guide.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: January 1, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Kenkichi Hayashi, Masahiko Sugimoto, Yousuke Naruse
  • Patent number: 10145733
    Abstract: A method of auto-calibrating light sensor data of a mobile device includes, obtaining, by the mobile device, one or more reference parameters representative of light sensor data collected by a reference device. The method also includes collecting, by the mobile device, light sensor data from a light sensor included in the mobile device, itself. One or more sample parameters of the light sensor data obtained from the light sensor included in the mobile device are then calculated. A calibration model is then determined for auto-calibrating the light sensor data of the light sensor included in the mobile device based on the one or more reference parameters and the one or more sample parameters.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: December 4, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Santiago Mazuelas, Ashwin Swaminathan, Piero Zappi, Muralidhar Reddy Akula, Abhijeet Bisain, Aditya Narain Srivastava, Suhas Hariharapura Sheshadri
  • Patent number: 10148944
    Abstract: A calibration method of an image capture system includes an image capture device of at least one image capture device capturing an image including a plurality of intersection coordinates among a plurality of geometric blocks of a test pattern and an information of a color of each geometric block of the plurality of geometric blocks; an operation unit executing a first operation on the plurality of intersection coordinates within the image to generate a plurality of geometric calibration parameters; the operation unit executing a second operation on an information of a color of each geometric block of the plurality of geometric blocks within the image to generate a plurality of color calibration parameters; and a calibration unit calibrating the image capture device according to the plurality of geometric calibration parameters and the plurality of color calibration parameters.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: December 4, 2018
    Assignee: eYs3D Microelectronics, Co.
    Inventor: Chi-Feng Lee
  • Patent number: 10136055
    Abstract: The present invention is to provide a method for enabling an electronic device to read at least two images taken from different positions by a digital camera mounted with a fisheye lens; acquire internal and external parameters of the fisheye lens corresponding to the different positions as well as the vignetting coefficient for eliminating the vignetting on the images; perform exposure compensation and color calibration on the images for letting them have consistent brightness and hues; project the images onto a spherical surface and spread out the spherical surface to form a two-dimensional spread-out picture based on the parameters; register the overlapped images projected on the two-dimensional spread-out picture and adjust the offset of corresponding pixels thereof, register and adjust the brightness and hues of the overlapped images into consistency; and fuse overlapped images together to produce a 360-degree spherical panorama without having any noticeable stitching seam between the images.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: November 20, 2018
    Assignee: MULTIMEDIA IMAGE SOLUTION LIMITED
    Inventors: Hua Lei, Jin Wang
  • Patent number: 10127682
    Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the detecting of defects in the imaging components of the array camera and determining whether the detected defects may be tolerated by image processing algorithms. The calibration process also determines translation information between imaging components in the array camera for use in merging the image data from the various imaging components during image processing. Furthermore, the calibration process may include a process to improve photometric uniformity in the imaging components.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: November 13, 2018
    Assignee: FotoNation Limited
    Inventor: Robert Mullis
  • Patent number: 10089753
    Abstract: The invention provides a method, a system and a computer-readable medium for calibrating a camera by using a multi-pattern calibration rig, each pattern being repetitive and comprising calibration shapes, wherein the following steps are carried out: capturing an image of the multi-pattern calibration rig with the camera, segmenting contours of the imaged calibration shapes, building groups of coherent contours based on the similarity of their shapes and their distances from each other, and identifying the positions of the patterns in the image based on the contour groups.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 2, 2018
    Assignee: Almotive Kft.
    Inventors: Zoltán Fegyver, Kristóf Várszegi
  • Patent number: 10088971
    Abstract: A method of calibrating a six-degree-of-freedom (6DoF) pose of a natural user interface (NUI) camera relative to a display is provided. Calibration video imaging an environment from a calibration perspective, which sites the display and one or more features, is received from the NUI camera or a calibration camera. A three-dimensional map of the environment, which defines a 6DoF pose of the display and a three-dimensional location of each of the one or more features, is modeled from the calibration video. Primary video imaging the environment from an operation perspective, which sites the one or more features, is received from the NUI camera. A 6DoF pose of the NUI camera is found within the three-dimensional map of the environment based on the operation perspective view of the one or more features.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: October 2, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David Bastien, Kevin Alan Kennedy
  • Patent number: 10091443
    Abstract: The invention relates to a camera system for inspecting and/or measuring objects in an environment, comprising a color image sensor, an objective arrangement in front of the color image sensor for imaging an object from the environment on the color image sensor and at least one taking illumination light source with which the environment can be illuminated by non-monochromatic light, in particular without passing through the objective arrangement. In accordance with the invention, an internal reference illumination light source is provided which is arranged such that the color image sensor can be illuminated by it without the light irradiated by it for this purpose passing through the objective arrangement. The invention furthermore relates to a method for inspecting and/or measuring objects using such a camera system.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 2, 2018
    Assignee: SICK AG
    Inventor: Florian Schneider
  • Patent number: 10075704
    Abstract: An imaging system may include an image sensor having a pixel array. The pixel array may receive test signals from multiplexers located at the top or bottom of each column of the array. Test signals may be provided to each column based on a predefined test pattern. In some arrangements, pixel array photodiodes may receive test signals through an anti-blooming transistor while the anti-blooming transistor is on. In other arrangements, dark current of photodiodes in the pixel array may be modulated by voltages applied to the drain of an anti-blooming transistor while the anti-blooming transistor is off. In other arrangements, pixel array photodiodes may receive test signals through a reset transistor. Arbitrary test patterns may be applied to determine photodiode or floating diffusion node leakage and incorrect pixel control voltages. Arbitrary patterns may also be superimposed on light-based image data in the manner of a watermark.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: September 11, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Cornelis Hoekstra, Jeffery Beck, Sergey Velichko
  • Patent number: 10075685
    Abstract: An optical evaluation workstation evaluates quality metrics (e.g., virtual image distance) of eyecup assemblies of a head mounted display (HMD). The workstation includes an eyecup assembly feed assembly configured to receive an eyecup assembly of a head mounted display (HMD), the eyecup assembly comprising an optics block rigidly fixed at a first distance to an electronic display panel. The optical evaluation workstation includes a camera assembly configured to capture a plurality of images of the electronic display panel through the optics block, the camera assembly comprising a pinhole aperture at an exit pupil position and a camera attached to a lens assembly having an adjustable focus. The optical evaluation workstation includes a control module configured to determine one or more virtual image distances of the eyecup assembly using the plurality of images captured by the camera assembly.
    Type: Grant
    Filed: June 19, 2016
    Date of Patent: September 11, 2018
    Assignee: Oculus VR, LLC
    Inventors: Matthew Robert Fulghum, Samuel Redmond D'Amico, Simon Hallam, Kieran Tobias Levin
  • Patent number: 10044911
    Abstract: An image processing apparatus according to an embodiment of the present invention performs a first correction for an image based on a correction value corresponding to a step designated by an operator among a plurality of steps corresponding to a plurality of correction values used for correcting the image. The image processing apparatus stores information used for specifying a change amount of a correction value corresponding to a change of one step of the plurality of steps in a memory. The change amount can be changed, and the change amount at the time of operator's designating the step is stored. The image processing apparatus performs a second correction for the image based on the change amount of the correction value corresponding to the change of the one step that is specified by the information stored in the memory.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: August 7, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Norikazu Horiike, Kenichiro Uotani
  • Patent number: 10044535
    Abstract: A serial communication apparatus includes an adder configured to add a start code and a length code to a head of data, a transmitter configured to convert the data together with the added start code and the added length code into a serial format and to transmit the converted data including the start code and the length code, a receiver configured to receive the converted data transmitted from the transmitter, and a processor configured to detect the start code and the length code included in the received converted data, to specify the head of the data based on the detected start code, to specify a tail of the data based on the detected start code and the detected length code, and to process the converted data based on the specified head and the specified tail of the data.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: August 7, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Noriyuki Natsukawa
  • Patent number: 10038861
    Abstract: The dynamic range of a pixel is increased by using selective photosensor resets during a frame time of image capture at a timing depending on the light intensity that the pixel will be exposed to during the frame time. Pixels that will be exposed to high light intensity are reset later in the frame than pixels that will be exposed to lower light intensity.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: July 31, 2018
    Assignee: Micron Technology, Inc.
    Inventor: Nikolai E. Bock
  • Patent number: 10027954
    Abstract: A method of registering first and second cameras in a multi-camera imager comprising imaging a calibration target having rows and columns of fiducials with both the first and second cameras and using convergence angles of images of the rows and columns in the images to register the cameras.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 17, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Michael Anthony Hall
  • Patent number: 10009595
    Abstract: A calibration method of a stereo camera includes transmitting a group of system parameters of the stereo camera to a server; downloading calibration pattern corresponding to the group of system parameters from the server; calculating a plurality of camera calibration parameters corresponding to the stereo camera according to the calibration pattern; and executing an image rectification operation on a left eye image capture unit and a right eye image capture unit of the stereo camera according to the plurality of camera calibration parameters, respectively.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 26, 2018
    Assignee: eYs3D Microelectronics, Co.
    Inventors: Wen-Kuo Lin, Ming-Che Ho
  • Patent number: 10007998
    Abstract: An image processor includes a corrector that corrects deviation of a coordinate in an image photographed by a photographing unit based on a correction parameter stored in a memory; and an updater that generates the correction parameter based on the image photographed by the photographing unit, and updates the correction parameter stored in the memory, the updater updating the correction parameter according to a process condition based on the image corrected by the corrector.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 26, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasuhiro Nomura, Kenji Shiraishi, Morihiro Takagi, Kei Itoh
  • Patent number: 9986233
    Abstract: Methods and systems for collecting camera calibration data using at least one fixed calibration target are described. Calibration parameters of a camera that is attached to a vehicle may be accessed. A set of calibration instructions for the camera may be determined based at least in part on the calibration parameters. The set of calibration instructions may include navigational instructions for the vehicle to follow to present the camera to the at least one fixed calibration target. Calibration data collected by the camera viewing the at least one fixed calibration target may be received. The camera may be calibrated based at least in part on the calibration data.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: May 29, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: James Christopher Curlander, Gur Kimchi, Barry James O'Brien, Jason Leonard Peacock
  • Patent number: 9986224
    Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the capturing of an image of a test pattern with the array camera such that each imaging component in the array camera captures an image of the test pattern. The image of the test pattern captured by a reference imaging component is then used to derive calibration information for the reference component. A corrected image of the test pattern for the reference component is then generated from the calibration information and the image of the test pattern captured by the reference imaging component. The corrected image is then used with the images captured by each of the associate imaging components associated with the reference component to generate calibration information for the associate imaging components.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: May 29, 2018
    Assignee: FotoNation Cayman Limited
    Inventor: Robert Mullis
  • Patent number: 9978969
    Abstract: A display device that may compensate for characteristic deviations among pixels and impact picture quality is provided. The display device includes a plurality of pixels, a plurality of sensing lines connected to the pixels, a sensing circuit configured to extract characteristic information of the pixels through the sensing lines. The sensing circuit includes a plurality of analog-to-digital converters (ADC) to convert the characteristic information into digital sensing data and to output the digital sensing data. A compensating circuit is configured to compare output values of the plurality of ADCs, to set a correction value, and to convert first data into second data based on the sensing data and the correction value. A data driver is configured to generate data signals corresponding to the second data and to output the data signals to the pixels.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jeong Hwan Shin, Sung Hwan Kim, Sung Hoon Bang
  • Patent number: 9978146
    Abstract: A method of operating data-processing system for calibration of a vehicle surround view based on images captured of one or more 2D calibration patterns located at arbitrary positions in an overlapping field of view between two or more cameras fixed to the vehicle. The calibration patterns are arbitrary orientated in respect to the vehicle or other calibration patterns. Each calibration pattern is laying in the plane Z=0 on which the vehicle having surround view system is parked. The images of any calibration pattern j positioned in an overlapping field of view between two or more cameras are taken simultaneously establishing connected topological structure of the form: . . . —camera i—pattern j—camera i?—pattern j^?—camera i?— . . . The data-processing results with the corrected extrinsic camera i parameters Ri,Ci for the vehicle coordinate system.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: May 22, 2018
    Inventors: Adam Hedi, Marko Vidovic, Ana Stanisic, Anita Cazin, Eugen Gervais, Tomislav Devcic
  • Patent number: 9973685
    Abstract: A mobile terminal including a terminal body; a camera; a sensor configured to sense a movement of the terminal body; a display formed on the terminal body to have a first display region configured to display screen information and a second display region distinguished from the first display region; and a controller configured to in response to a sensed predetermined movement of the terminal body from a first position to a second position without a touching of the second display region, change a direction of the displayed screen information corresponding to the sensed predetermined movement of the terminal body, and in response to the sensed predetermined movement of the terminal body from the first position to the second position with the touching of the second display region, activate the camera and display a preview image in the first display region.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: May 15, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Sooyoung Kim, Eunyoung Kim, Soyeon Yim, Jookyung Jun
  • Patent number: 9967526
    Abstract: An image processing device includes an image input section inputting images taken by a vehicle camera, a calibration target specifying section specifying a calibration target included both in a first image and in a second image, a vehicle information input section inputting information indicating travel distance and orientation change of the vehicle, a calculation section, and a storing control section. The calculation section converts the first and the second images to the first and second bird's-eye view images, respectively, arranges the first and the second birds-eye view images on common coordinate system with consideration of corresponding image taking positions and image taking orientations, and calculates at least one orientation parameter of the camera which minimizes position difference and rotation angle difference between the two calibration targets included in the first and second birds-eye view images. The storing control section stores the orientation parameter in storage.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: May 8, 2018
    Assignees: DENSO CORPORATION, NIPPON SOKEN, INC.
    Inventors: Bingchen Wang, Hirohiko Yanagawa, Masakazu Takeichi, Masayuki Imanishi
  • Patent number: 9965870
    Abstract: Calibration methods use a calibration target for obtaining the intrinsic and extrinsic camera parameters of one or more cameras are. The methods can include acquiring, with each camera, a sequence of target images representing the calibration target in different target poses and at different acquisition times. The methods can include identifying reference images from the target images, and defining volume bins, angle bins and multi-camera bins into which the reference images are stored. The reference images can be used to determine the intrinsic and extrinsic parameters of the one or more cameras. In some implementations, the calibration methods can enable a user to monitor the progress of the calibration process, for example by providing an interactive calibration target including an input/output user interface to guide the user in real-time during the acquisition of the target images and/or sensors to provide positional information about the target poses.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 8, 2018
    Assignee: INSTITUT NATIONAL D'OPTIQUE
    Inventors: Fabien Claveau, Éric Samson, Yannick Cadoret, Donald Prévost, Louis St-Laurent, Maxim Mikhnevich
  • Patent number: 9936187
    Abstract: The present embodiments relate to multi-resolution lightfield representations and lightfield renderings. By way of introduction, the present embodiments include apparatuses and methods for generating multi-resolution lightfield representations used to generate lightfield renderings that provide end users with zoom functionality without distorting the rendering. Image data sets of a volume are captured at different resolutions for each camera position, and the image data sets are stored as multi-resolution image pyramids. The multi-resolution image pyramids represent the lightfield at different resolutions, and image data sets at a particular resolution are selected and used for generating a volume rendering at a zoom level chosen for the lightfield rendering.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 3, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: John Paulus, Jr., Christoph Vetter
  • Patent number: 9930242
    Abstract: A focus detection apparatus comprises: a focus detection unit configured to detect a focus state; an obtaining unit configured to obtain a correction value to be used in correction of the focus state detected by the focus detection unit; and a storage unit configured to store a correction value. In a case where a difference between the correction value stored in the storage unit and the correction value obtained by the obtaining unit is smaller than a threshold value, the correction value stored in the storage unit is not updated.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroshi Abe