Artifact Removal Or Suppression (e.g., Distortion Correction) Patents (Class 382/275)
  • Patent number: 10319079
    Abstract: Methods and devices for reducing noise in an image may include receiving an in focus image and at least one out of focus image of a scene, wherein the out of focus image has a second value of at least one focus-related parameter offset from a first value of the at least one focus-related parameter used for the in focus image. The methods and devices may include estimating a noise model of noise in at least a section of the out of focus image, and determining at least one parameter value for a filter based on the noise model. The methods and devices may include generating a noise-reduced image by applying the filter with the at least one parameter value to the in focus image to reduce at least part of the noise from at least a corresponding section of the in focus image.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: June 11, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Sudhanshu Sohoni
  • Patent number: 10311552
    Abstract: The present disclosure relates to using a neural network to efficiently denoise images that were generated by a ray tracer. The neural network can be trained using noisy images generated with noisy samples and corresponding denoised or high-sampled images (e.g., many random samples). An input feature to the neural network can include color from pixels of an image. Other input features to the neural network, which would not be known in normal image processing, can include shading normal, depth, albedo, and other characteristics available from a computer-generated scene. After the neural network is trained, a noisy image that the neural network has not seen before can have noise removed without needing manual intervention.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 4, 2019
    Assignee: Pixar
    Inventors: Mark Meyer, Anthony DeRose, Steve Bako
  • Patent number: 10311605
    Abstract: Provided are an iterative image reconstruction method, an iterative image reconstruction program, and a tomography apparatus capable of effectively performing image reconstruction by shorting computation time when performing image reconstruction using an iterative method. In this iterative image reconstruction method, in cases where the image quality after image reconstruction is insufficient when the image was obtained with the number of iterations of 100 times in the first image reconstruction processing, when resuming the image reconstruction, the number of iterations and the state variables at the end of the reconstruction in which the number of iterations is 100 times are read, and then the image reconstruction is resumed.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: June 4, 2019
    Assignee: Shimadzu Corporation
    Inventor: Kenta Chinomi
  • Patent number: 10304908
    Abstract: The present disclosure relates to a method and apparatus for image processing, comprising: transforming RGB luminance input values of each of pixels in an image into coordinate values in a uniform color space; moving the coordinates of each of pixels in the uniform color space a setting distance based on luminous efficiencies of RGBW and a replacement ratio of W; the setting distance being set so as to satisfy that a color difference between RGB luminance values transformed from the moved coordinate values in the uniform color space and the respective RGB luminance input values of each of pixels is less than a preset value, in order to maintain image quality; and the setting distance being set so as to satisfy that the minimum of the transformed RGB luminance values is greater than the minimum of the RGB luminance input values. In this way, power consumption is reduced.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 28, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Szuheng Tseng
  • Patent number: 10291844
    Abstract: An image processing apparatus includes: an image storage unit storing a first image affected by aberration of an optical system; a position information generation unit generating position information about a pixel of the first image corresponding to a scanned target pixel on the basis of position information about the target pixel scanned in the predetermined order and a distortion aberration table; an image output unit outputting a first image in which distortion aberration correction is performed in units of one pixel based on integer information about the position information generated by the position information generation unit; a first aberration correction unit, using fractional part information about the position information, correcting phase shift caused by distortion aberration for each pixel of the first image; and a second aberration correction unit generating the second image by correcting aberration other than distortion aberration in the first image.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 14, 2019
    Assignee: REALOP CORPORATION
    Inventor: Akihiro Okumura
  • Patent number: 10282820
    Abstract: A method includes obtaining at least one of projection data from a spectral scan or image data generated from the projection data, selecting a local reference dataset from the at least one of the projection data or the image data, determining a noise pattern for the selected reference dataset, estimating underlying local structure from the reference dataset based on the noise pattern, and restoring at least one of the projection data or the image data based on the estimated underlying local structure.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: May 7, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Liran Goshen
  • Patent number: 10254594
    Abstract: Embodiments of the present disclosure relates to a liquid crystal drop filling system comprising a liquid crystal drop filling device performing a liquid crystal drop filling process to obtain a liquid crystal panel; an image acquisition device acquiring an image of the liquid crystal panel; an image processor processing the acquired image and determining a defect of the liquid crystal panel based on the processed image; and a communication module communicating an information about the defect determined by the image processor to the liquid crystal drop filling device, so that the liquid crystal drop filling device can adjust parameters of the liquid crystal drop filling process according to the information. In addition, the present disclosure further discloses a control method of a liquid crystal drop filling system.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: April 9, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xuebing Jiang, Ran Zhang, Jian Zhao
  • Patent number: 10244179
    Abstract: An image processing apparatus performs first image processing of processing a target image as a processing target and writing a first image as a processing result in a storage, and second image processing of reading out the first image written in the storage, processing the first image, and outputting a second image as a processing result. The first image processing and the second image processing are performed for each of a plurality of regions. Readout of the first image in the second image processing is performed in parallel with writing of the first image in the first image processing. A size of a second region defined for the first image as a processing target of the second image processing is set to be smaller than a size of a first region defined for a processing target image of the first image processing.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: March 26, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuya Ebata
  • Patent number: 10222959
    Abstract: A method includes formatting for display, on a visual screen, an image comprising: (1) a coordinate system, (2) a plurality of distinguishable areas within the coordinate system, each distinguishable area graphically representing a respective formula, and (3) a plurality of data points. The method also includes receiving user input comprising a modification to a particular distinguishable area. In response to receiving the user input, the method includes modifying one or more respective formulas based on the modification to the distinguishable area. For each data point, the method further includes associating the data point with one of the distinguishable areas by determining which of the modified formulas the data point falls within. The method further includes formatting for display a graphical representation of each modified formula. The method additionally includes storing the graphical representation of each modified formula for use as a modified image in future operations.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: March 5, 2019
    Assignee: CA, Inc.
    Inventors: Serguei Mankovskii, Ian Davis, Michael Godfrey
  • Patent number: 10223772
    Abstract: Methods and systems for denoising a digital image are provided. The method includes determining first and second plurality of pixel patches including respective first (p) and second (q) pixels, determining a patch distance between each pair of corresponding pixel patches in the first plurality and the second plurality of pixel patches, determining an effective distance between the first pixel (p) and the second pixel (q), repeating the above steps for the same first pixel (p) and another second pixel (q) until a predetermined number of pixels (q) in the raw digital image is processed, and then denoising the first pixel (p), including determining respective contributions of the pixels (q) into a noise reduction of the pixel (p), using respective effective distances of the pixels (q). A corresponding system is also provided. Embodiments of the invention provide computational advantages for denoising digital images.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: March 5, 2019
    Assignee: ALGOLUX INC.
    Inventors: Emmanuel Luc Julien Onzon, Nicolas Joseph Paul Robidoux
  • Patent number: 10223764
    Abstract: A method of processing a frame in a data processing system is provided, in which the frame comprises one or more frame regions that together form the frame, and each frame region is represented as one or more data values, with each data value being represented by a set of data.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: March 5, 2019
    Assignee: ARM Limited
    Inventor: Daren Croxford
  • Patent number: 10197808
    Abstract: Embodiments of the present application disclose a light field display control method and apparatus and a light field display device. The light field display control method comprises: determining a partial depth distribution sub-region of content according to at least depth distribution information of the content; and tilting a first display unit at least with respect to an original plane of a display array of a light field display device according to a display depth of field (DoF) range of the light field display device and the depth distribution sub-region, wherein the first display unit is a display unit that is in the display array and affects display of a first object, and the first object is a part, which is located in the depth distribution sub-region, of the content. The present application can improve display quality of an object, which is located in a partial depth distribution sub-region, of content to be displayed or content being displayed.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: February 5, 2019
    Assignee: Beijing Zhigu Rui Tuo Tech Co., Ltd.
    Inventors: Lin Du, Liang Zhou
  • Patent number: 10191941
    Abstract: The present invention extends to methods, systems, and computing system program products for iteratively calculating a skewness for streamed data. Embodiments of the invention include iteratively calculating one or more components of skewness in an adjusted computation window based on the one or more components of the skewness calculated for a previous computation window and then calculating the skewness based on the iteratively calculated components. Iteratively calculating skewness avoids visiting all data elements in the computation window and performing redundant computations thereby increasing calculation efficiency, saving computing resources and reducing computing system power consumption.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 29, 2019
    Assignee: CLOUD & STREAM GEARS LLC
    Inventor: Jizhu Lu
  • Patent number: 10182755
    Abstract: A prediction, diagnosis, or suggesting of a diagnosis of a psychiatric disorder is made based in embodiments of the disclosed technology by determining a shape of one or both pupils in an image of a patient. Such a diagnosis can be made in real-time by diagnosing the patient, or by viewing a digitized version of the patient's face as part of post-processing. By finding a pupil which is ovoid or irregular shape (non-circular) and/or comparing the shape to that of shapes of people with known psychiatric disorders, a diagnosis can be suggested.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: January 22, 2019
    Inventor: Jacques Ohayon
  • Patent number: 10165257
    Abstract: A system for robust disparity estimation in the presence of significant intensity variations for camera arrays is described herein. The system comprises a camera array, a memory and a processor. The memory is configured to store imaging data. The processor is coupled to the memory and the camera array. When executing instructions, the processor is to obtain a plurality of images and generate a sequence of color matched images, wherein the sequence includes each pair of images in the plurality of images. The processor is also to calculate a plurality of disparity points based on the sequence of color matched images.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: December 25, 2018
    Assignee: Intel Corporation
    Inventors: Kalpana Seshadrinathan, Oscar Nestares
  • Patent number: 10154238
    Abstract: A projection system generates a pre-projective transformation image based on an extracted image obtained from a source image, applies projective transformation to the pre-projective transformation image using the parameters to produce an output image, and causes the projector assembly to output the output image and project a projected image on a surface for projection. If the extracted image has been obtained in a predetermined range of the source image, the projected image is projected onto the surface for projection so that an origin of the pre-projective transformation image is located at a predetermined position in the surface for projection.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: December 11, 2018
    Assignee: ROLAND DG CORPORATION
    Inventor: Jun Ueda
  • Patent number: 10108881
    Abstract: The present disclosure relates to a train type identification method and system, and a security inspection system and system. The train type identification method includes: continuously photographing a to-be-inspected train by using a linearity camera in motion relative to the to-be-inspected train, and generating a plurality of train sub-images; splicing the plurality of train sub-images to acquire a train image of the to-be-inspected train; extracting at least one train characteristic parameter from the train image; comparing the at least one train characteristic parameter with a prestored train type template; and automatically determining a type of the to-be-inspected train based on a comparison result.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: October 23, 2018
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Yanwei Xu, Weifeng Yu
  • Patent number: 10097736
    Abstract: An image processing device comprises a unit configured to obtain image data representing an image of an object from an image capturing device; a unit configured to obtain an angular dependency of an intensity of light reflected by the object; a unit configured to calculate an angle of the light reflected by the object to the image capturing device; and a unit configured to correct the obtained image data based on the calculated angle and the obtained angular dependency.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: October 9, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Toshiyuki Ishii
  • Patent number: 10089770
    Abstract: The present disclosure is to generate a high-quality image by correcting a predetermined correction target image based on a plurality of input images. In an image processing device 3, an image correcting section 160 detects a user tap gesture on a touch panel 250. When the position of the tap gesture is within foreground candidate areas detected by a foreground candidate area detecting section 140, the image correcting section 160 corrects a base image set by a base image setting section 120 in the areas corresponding to the foreground candidate areas.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: October 2, 2018
    Assignee: MORPHO, INC.
    Inventor: Michihiro Kobayashi
  • Patent number: 10055820
    Abstract: An image de-noising method and an apparatus thereof are disclosed, which includes categorizing a pixel in a current frame into a first low-frequency pixel having a first weight and a first high-frequency pixel having a second weight; categorizing a previous pixel corresponding to the position of the pixel in a previous frame into a second low-frequency pixel having a third weight and a second high-frequency pixel having a fourth weight; adjusting the first weight and the third weight and calculating the weighted sum of the first low-frequency pixel and the second low-frequency pixel, to generate low-frequency pixel data; adjusting the second weight and the fourth weight and calculating the weighted sum of the first high-frequency pixel and the second high-frequency pixel, to generate high-frequency pixel data; and calculating the sum of the low-frequency pixel data and the high-frequency pixel data, to output the de-noised pixel.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: August 21, 2018
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Tsung-Hsuan Li, Hao-Tien Chiang, Shih-Tse Chen
  • Patent number: 10057555
    Abstract: A projector adapted to deform an input image to generate an output image includes a geometric correction section adapted to perform a geometric correction of the input image, and a background data generation section adapted to output data of a post-correction image as data of the output image in the case in which the data of the post-correction image obtained by performing the geometric correction on the input image is input from the geometric correction section, and to output data of a background image to be a background of the post-correction image as the data of the output image in the case in which the data of the post-correction image is not input from the geometric correction section.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: August 21, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Manabu Saigo, Shiki Furui
  • Patent number: 10043070
    Abstract: Aspects of the technology described herein detect visible abnormalities within a webpage or other document. The technology improves computing accuracy by identifying data and/or programing errors that cause the abnormalities. The abnormalities are detected through image analysis of portions of a document. Initially, a portion of a webpage associated with a particular feature is identified and then converted to a digital image. The digital image can capture the website as it would appear to a user viewing the website, for example, in a web browser application. The image is then analyzed against an established feature-pattern for the feature to determine whether the image falls outside of a normal range. When the image of a portion of the webpage falls outside of the normal range, a notification can be communicated to a person associated with the webpage, such as a system administrator.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: August 7, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Kamil Szostak
  • Patent number: 10025977
    Abstract: This invention relates to a method for identifying a sign on an image of a document that can be deformed comprising: an acquisition (E1) of said digital image of said document; a determination (E2) in the acquired image of at least one candidate sign region using an image segmentation algorithm, for each candidate sign region, a calculation (E3) of a signature comprising a piece of information concerning the location in the acquired image of said candidate sign region and a region descriptor concerning the local characteristics of the image in said region, an identification (E4) of a sign on the image of the document using the calculated signatures comprising jointly a comparison (E41) of the calculated signatures with reference signatures concerning sign regions of document models, said comparison being carried out according to a geometric deformation model of said document, and an estimation (E42) according to said comparison of said geometric deformation model.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: July 17, 2018
    Assignee: MORPHO
    Inventors: Alain Rouh, Jean Beaudet, Laurent Rostaing
  • Patent number: 10013739
    Abstract: An embodiment of an image enhancement method is introduced for use in an electronic device. An image composed of a plurality of pixel values is first received, and each pixel therein is separated into two channels. The image is further divided into a plurality of blocks. A distribution of a selected channel is determined for each block, which is selected from the two channels. For each pixel, the pixel value of the selected channel is adjusted according to at least one distribution corresponding to at least one neighboring block. For each pixel, the pixel value of the other channel is adjusted according to the adjusted pixel value of the selected channel. As a result, the adjusted image is provided.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: July 3, 2018
    Assignee: HTC CORPORATION
    Inventors: Chia Yen Michael Lin, Chia-Ho Pan, Jing-Lung Wu, Hsin-Ti Chueh
  • Patent number: 9962065
    Abstract: An optical scanning observation system includes: an endoscope having an optical scanning portion for scanning an object; a drive signal generation portion configured to generate a drive signal and supply the signal to the optical scanning portion; an electric-current measurement portion configured to measure an electric current value of the drive signal; a first storage portion in which a measured electric current value when the temperature of the optical scanning portion is a predetermined temperature is stored; a second storage portion in which a plurality of parameters that are set according to the size of the measured electric current value are stored; and a correction processing portion configured to correct a scanning range of the endoscope by reading in from the second storage portion a parameter that corresponds to the size of the measured electric current value read in from the first storage portion.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 8, 2018
    Assignee: OLYMPUS CORPORATION
    Inventor: Soichiro Koshika
  • Patent number: 9942565
    Abstract: The present invention provides a unique intra prediction process which improves the efficiency of video coding. H.264/AVC uses reference pixels in a horizontal boundary located immediately above a target block to be predicted and reference pixels in a vertical boundary located immediately left of the target block. In the present invention, at least some of one of an array of horizontal boundary pixels and an array of vertical boundary pixels are retrieved. Then, the retrieved pixels are added to the other boundary pixels to extend the array thereof. Intra prediction is performed, based solely on the extended array of boundary pixels.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 10, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Thiow Keng Tan
  • Patent number: 9940735
    Abstract: The present invention provides a system and method for generating a CT slice image. The system comprises an MIP image generation module, a region of interest determination module, an angle setting module, a curve determination module, a match module and a slice generation module.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 10, 2018
    Assignee: General Electric Company
    Inventors: Ping Liu, Jie Wu, Jiang Hsieh
  • Patent number: 9939534
    Abstract: A semiconductor image sensor is repeatedly exposed to high-energy photons while a visible light obstructer is in place to block visible light from impinging on the sensor to generate a set of images from the exposures. A composite image is generated from the set of images with common noise substantially removed so the composite image includes image information corresponding to radiated pixels that absorbed at least some energy from the high-energy photons. The composite image is processed to determine a set of bright points in the composite image, each bright point being above a first threshold. The set of bright points is processed to identify lines with two or more bright points that include pixels therebetween that are above a second threshold and identify a presence of the high-energy particles responsive to a number of lines.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: April 10, 2018
    Assignee: Battelle Energy Alliance, LLC
    Inventor: Joshua Joseph Cogliati
  • Patent number: 9934559
    Abstract: A method of correcting an image obtained by an image acquisition device includes obtaining successive measurements, Gn, of device movement during exposure of each row of an image. An integration range, idx, is selected in proportion to an exposure time, te, for each row of the image. Accumulated measurements, Cn, of device movement for each row of an image are averaged across the integration range to provide successive filtered measurements, G, of device movement during exposure of each row of an image. The image is corrected for device movement using the filtered measurements G.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: April 3, 2018
    Assignee: FotoNation Limited
    Inventor: Piotr Stec
  • Patent number: 9935615
    Abstract: An adaptation hardware accelerator comprises a calculation unit to receive inputs at predefined time interval(s) that correspond to a calculation iteration, the inputs associated with adaptive filters having taps, and determine correlation and cross-correlation data based thereon for a given iteration. The correlation data comprises a correlation matrix. Determining the matrix comprises determining submatrices in an upper triangular portion and a diagonal portion of the matrix. The accelerator comprises an adaptation core unit to determine adaptive weights associated with the adaptive filters, respectively, based on an adaptive algorithm, utilizing the correlation and cross correlation data. The accelerator unit comprises a convergence detector unit to determine a convergence parameter; and a controller to generate an iteration signal for each time interval based on the parameter.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: April 3, 2018
    Assignee: Intel Corporation
    Inventors: Farhana Sheikh, Ching-En Lee, Feng Xue, Anuja S. Vaidya, Eduardo X. Alban, Albert Oskar Filip Andersson, Chia-Hsiang Chen, Shu-Ping Yeh
  • Patent number: 9928578
    Abstract: Various approaches to image enhancement are disclosed. In one approach, an image to be enhanced and a boundary map are received. A field value array is made using the boundary map and the received image. For each field represented in the field value array, pixel values obtained from the received image are aggregated. An enhanced image is generated as output by performing a rereasterization using the aggregated values. In another approach, an image to be enhanced and an edge map are received. Edge-masked derivative matrices are constructed. The edge-masked derivative matrices are used to iteratively solve a series of linear equations, wherein solutions to the linear equations minimize an increasingly accurate quadratic approximation of a penalty function that measures a total amount of variation in a function, and a derivation of the function from the image. A vector result of the iterative solution is transformed into a raster image.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 27, 2018
    Assignee: Descartes Labs, Inc.
    Inventors: Rick S. Chartrand, Ryan S. Keisler
  • Patent number: 9927602
    Abstract: A video-confocal microscopy method for creating an image of an optical section (?) of a sample (99), provides, in one aspect of the invention, illuminating the sample (99) with illumination beams (19) concentrated on spots (x,y) arranged in an illumination pattern (18) in an illumination plane (?0) at the optical section (?); translationally parallel moving the pattern (18) of spots (x,y) to a plurality of positions in the illumination plane; it also provides for each position (u,v) of the illumination pattern (18), receiving light (21) returned by the sample (99) by reflection and/or transmission and/or phosphorescence, and detecting raw images (52), each having a light intensity distribution Iu,v(x,y) on said image detector.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 27, 2018
    Assignee: CNR CONSIGLIO NAZIONALE DELLE RICERCHE
    Inventor: Pier Alberto Benedetti
  • Patent number: 9916515
    Abstract: A system for processing an image comprises a region detector (1). The region detector comprises an artifact detector (7) for detecting a region comprising an artifact in the image. The system comprises a parameter determining unit (2) for determining a parameter, based on a portion of the image excluding the detected region. The system comprises an image processing module (3) for processing the image, using the derived parameter. The system comprises a display unit (5) for displaying the processed image with an indication of the detected region. The parameter determined by the parameter determining unit (2) can comprise a normalization parameter, and the image processing module (3) can be arranged for performing a normalization of the image according to the normalization parameter.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: March 13, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Jelte Peter Vink, Marinus Bastiaan Van Leeuwen
  • Patent number: 9900510
    Abstract: Motion blur may be applied to a light-field image. The light-field image may be captured with a light-field camera having a main lens, an image sensor, and a plurality of microlenses positioned between the main lens and the image sensor. The light-field image may have a plurality of lenslet images, each of which corresponds to one microlens of the microlens array. The light-field image may be used to generate a mosaic of subaperture images, each of which has pixels from the same location on each of the lenslet images. Motion vectors may be computed to indicate motion occurring within at least a primary subaperture image of the mosaic. The motion vectors may be used to carry out shutter reconstruction of the mosaic to generate a mosaic of blurred subaperture images, which may then be used to generate a motion-blurred light-field image.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: February 20, 2018
    Assignee: Lytro, Inc.
    Inventors: Jon Karafin, Thomas Nonn, Gang Pan, Zejing Wang
  • Patent number: 9894302
    Abstract: A defective pixel of an imaging device is detected. An output pixel value of the defective pixel is corrected to generate an output image. An imaging device, and a signal processing unit for analyzing an output signal from the imaging device and detecting a defective pixel are included. The imaging device receives incident light via, for example, a microlens placed in front of a pixel, inputs the same subject light on a local area basis including a plurality of pixels of the imaging device, and acquires an image signal lower than a pixel resolving power corresponding to the pixel density of the imaging device. The signal processing unit compares the pixel values of the same color pixels included in a local area on a local area basis including a cluster of the plurality of pixels of the imaging device, detects the defective pixel based on the comparison result, and corrects and outputs a pixel value of a pixel determined to be a defective pixel.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: February 13, 2018
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Hirotaka Shinozaki
  • Patent number: 9894288
    Abstract: Images are combined with high accuracy, and a high-definition image that is superior in the sensitivity and the saturation characteristics is formed. An image forming method includes detecting a difference between a plurality of images by comparing respective high-resolution areas included in the plurality of images; based on the difference, adjusting position information associated with the plurality of images, respectively; and combining respective low-resolution areas of the plurality of images in which the pieces of position information is adjusted.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hajime Ikeda
  • Patent number: 9870605
    Abstract: A digital image processing technique, such as an image warping operation, is stored in a pre-computed lookup table (LUT) prior to image processing. The LUT represents a pixel-to-pixel mapping of pixel coordinates in a source image to pixel coordinates in a destination image. For vectors containing only inlier pixels, a fast remap table is generated based on the original LUT. Each SIMD vector listed in the fast remap is indexed to the coordinates of one of the source pixels that maps to one of the destination pixels in the vector. Other SIMD vectors that contain at least one outlier pixel are listed in an outlier index. For each vector indexed in the fast remap, linear vector I/O operations are used to load the corresponding source pixels instead of using scatter/gather vector I/O load operations via the LUT. The remaining outlier pixels are processed using scatter/gather I/O operations via the LUT.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: January 16, 2018
    Assignee: INTEL Corporation
    Inventor: Avigdor Dori Eldar
  • Patent number: 9846922
    Abstract: A method detects phase-encoding ghosting in a MR image of an object to be imaged and mitigates the corresponding artifact in the MR image. The method includes acquiring MRI raw data of the object by a MRI apparatus. The MRI apparatus has multiple receiver channels for acquiring the MRI raw data. An artifact map of at least one part of the object to be imaged is calculated from the MRI raw data, the artifact map is configured for highlighting artifact appearing in the MR image. An outlier mask representing detected phase-encoding artifact is created in the artifact map. The phase-encode ghosting in the MR image is mitigated by using the previously obtained artifact map and the outlier mask for obtaining an improved MR image.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: December 19, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Tom Hilbert, Gunnar Krueger
  • Patent number: 9811732
    Abstract: A method performed by an electronic device is described. The method includes determining a local motion pattern by determining a set of local motion vectors within a region of interest between a previous frame and a current frame. The method also includes determining a global motion pattern by determining a set of global motion vectors between the previous frame and the current frame. The method further includes calculating a separation metric based on the local motion pattern and the global motion pattern. The separation metric indicates a motion difference between the local motion pattern and the global motion pattern. The method additionally includes tracking an object based on the separation metric.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 7, 2017
    Assignee: QUALCOMM Incorporated
    Inventors: Sairam Sundaresan, Dashan Gao, Xin Zhong, Yingyong Qi
  • Patent number: 9811924
    Abstract: A method and system for providing a fast image reconstruction of magnetic resonance spectroscopic imaging (MRSI) data based on applying, at least in part, interferometric techniques using a single receiver element. The images are reconstructed through temporally cross-correlating spacially incoherent k-space locations.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: November 7, 2017
    Assignee: University of Virginia Patent Foundation
    Inventors: Kenneth O. Johnson, Craig H. Meyer
  • Patent number: 9794452
    Abstract: Noise is sufficiently reduced in a moving image. A determination section determines, each time an input image is input, whether a change amount of a pixel value distribution in the input image and an output image that is output is smaller than a predetermined threshold value. A mixing ratio supply section supplies a value that becomes larger as the number of times the change amount is sequentially determined to be smaller than the predetermined threshold value becomes larger, the value serving as a mixing ratio of the output image in mixing of the input image and the output image. A mixing section mixes, each time the input image is input, the input image and the output image based on the supplied mixing ratio and outputs the input image and the output image to serve as a new output image.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: October 17, 2017
    Assignee: Sony Semiconductor Solutions Corporation
    Inventor: Hirosuke Nagano
  • Patent number: 9779489
    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: May 20, 2016
    Date of Patent: October 3, 2017
    Assignee: ADOBE SYSTEMS INCORPORATED
    Inventors: Sunghyun Cho, Jue Wang, Jen-Chan Chien, Dong Feng
  • Patent number: 9767541
    Abstract: Disclosed are various embodiments for a computing device that receives input, from a user, selecting an area of a displayed image, where the area includes the blemish sought to be corrected by the user. The computing device identifies a spot pattern of the blemish to be corrected within the area and a context pattern of the displayed image. The computing device corrects the spot pattern of the blemish within the displayed image. The computing device identifies related images that have context patterns similar to the context pattern of the displayed image. The computing device automatically corrects similar instances of the spot pattern appearing within the related images.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: September 19, 2017
    Assignee: Adobe Systems Incorporated
    Inventors: Anand Samuel Edwin, Komal Kumar Desai
  • Patent number: 9762804
    Abstract: An image processing apparatus includes a determination unit (105) configured to determine a zooming direction, and a calculation unit (109) configured to calculate a correction coefficient for correcting aberration at a zoom position predicted from the zooming direction.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: September 12, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayoshi Tsunoda
  • Patent number: 9761003
    Abstract: A stereo image depth map generation device that includes a depth calculation module, a first order bilateral filter module and a second order bilateral filter module is provided. The depth calculation module receives a reference image including a plurality of reference pixels and a target image including a plurality of target pixels to generate an initial depth map according to pixel differences of the reference pixels and the target pixels. The first order bilateral filter module receives the initial depth map to perform a first order bilateral filtering calculation according to the initial depth map and the initial depth map itself to generate an averaged depth map. The second order bilateral filter module receives the averaged depth map and the target image to perform a second order bilateral filtering calculation according to the averaged depth map and the target image to generate a refined depth map.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: September 12, 2017
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Te-Chih Wang, Hao-Wei Peng, Chun-Te Wu, Chen-Yuan Luo
  • Patent number: 9754356
    Abstract: In various embodiments of the present disclosure, there is provided a method for processing an input image. The method includes generating a base layer portion and a detail layer portion from the input image by carrying out a linear transformation of pixels of a guidance image, and determining, for each of the pixels of the guidance image, a variance of the pixels in a surrounding window of pixels. Further, the method includes determining, for each of the pixels of the guidance image, a weight value of the pixels based on the determined variance, wherein the pixels are weighted in the linear transformation according to the determined weight value. Accordingly, a system for processing an input image is also provided.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: September 5, 2017
    Assignee: Agency for Science, Technology and Research
    Inventors: Zhengguo Li, Jinghong Zheng, Zijian Zhu, Shiqian Wu, Wei Yao, Susanto Rahardja
  • Patent number: 9756266
    Abstract: An input rescale module that performs cross-color correlated downscaling of sensor data in the horizontal and vertical dimensions. The module may perform a first-pass demosaic of sensor data, apply horizontal and vertical scalers to resample and downsize the data in the horizontal and vertical dimensions, and then remosaic the data to provide horizontally and vertically downscaled sensor data as output for additional image processing. The module may, for example, act as a front end scaler for an image signal processor (ISP). The demosaic performed by the module may be a relatively simple demosaic, for example a demosaic function that works on 3×3 blocks of pixels. The front end of module may receive and process sensor data at two pixels per clock (ppc); the horizontal filter component reduces the sensor data down to one ppc for downstream components of the input rescale module and for the ISP pipeline.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: September 5, 2017
    Assignee: Apple Inc.
    Inventors: Christopher L. Mills, Sheng Lin, David R. Pope, D. Amnon Silverstein, Suk Hwan Lim
  • Patent number: 9746376
    Abstract: An apparatus and corresponding method for line-scan imaging includes a 2D array of light-sensitive detector elements divided into a plurality of sub-arrays. An electrical circuit can be configured to determine a correction for parallax based on detector element values from at least two rows of parallax detecting elements to enable images captured by the sub-arrays to be co-aligned with each other. The 2D array and parallax detecting elements can be located on the same substrate chip. Image data from sub-arrays can be co-aligned with each other based on parallax data from the parallax detecting elements and used to produce hyperspectral images corrected for parallax.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 29, 2017
    Assignee: EO Vista, LLC
    Inventor: Steven J. Wein
  • Patent number: 9726883
    Abstract: A three-dimensional object detection has an image capturing device, an image conversion unit, a three-dimensional object detection unit, a three-dimensional object assessment unit, first and second foreign matter detection units and a controller. The image capturing device captures images rearward of a vehicle. The three-dimensional object detection unit detects three-dimensional objects based on image information. The three-dimensional object assessment unit assesses whether or not a detected three-dimensional object is another vehicle. The foreign matter detection units detect whether or not foreign matter has adhered to a lens based on the change over time in luminance values for each predetermined pixel of the image capturing element and the change over time in the difference between an evaluation value and a reference value. The controller outputs control commands to the other means to suppress the assessment of foreign matter as another vehicle when foreign matter has been detected.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: August 8, 2017
    Assignees: Nissan Motor Co., Ltd, Clarion Co., Ltd.
    Inventors: Osamu Fukata, Yasuhisa Hayakawa, Masayuki Takemura, Akira Utagawa, Masahiro Kiyohara, Shoji Muramatsu, Kota Irie
  • Patent number: 9715136
    Abstract: A method for aligning optical layers of a multi-layer display includes illuminating a display layer with a plurality of illumination sources of an illumination layer disposed behind the display layer. The display layer includes a plurality of transmissive pixel arrays. An illumination pattern is cast onto a screen layer disposed in front of the display layer. The illumination pattern includes bright regions due to overlapping illumination cast from adjacent ones of the transmissive pixel arrays. The bright regions of the illumination pattern cast onto the screen layer are analyzed to identify misalignments.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: July 25, 2017
    Assignee: X Development LLC
    Inventors: Behnam Bastani, Peyman Milanfar