Patents Examined by Bhavesh M. Mehta
  • Patent number: 10206646
    Abstract: A method and apparatus for extracting centerline representations of vascular structures in medical images is disclosed. A vessel orientation tensor for each of a plurality of voxels associated with the target vessel, such as a coronary artery, in a medical image, such as a coronary tomography angiography (CTA) image, using a trained vessel orientation tensor classifier. A flow field is estimated for the plurality of voxels associated with the target vessel in the medical image based on the vessel orientation tensor estimated for each of the plurality of voxels. A centerline of the target vessel is extracted based on the estimated flow field for the plurality of vessels associated with the target vessel in the medical image by detecting a path that carries maximum flow.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 19, 2019
    Assignee: Siemens Healthcare GmbH
    Inventors: Mehmet Akif Gulsun, Yefeng Zheng, Saikiran Rapaka, Viorel Mihalef, Puneet Sharma, Gareth Funka-Lea
  • Patent number: 10198842
    Abstract: The methods and systems described herein comprise: receiving a first image and a second image, a first timestamp and a second timestamp, the first image and the second image depicting a common object; determining an actual position of first common object pixels and second common object pixels; computing a common object motion information based on the actual position of the first common object pixels and the second common object pixels, the first and the second timestamp; receiving a third image and a third timestamp, the third image depicting the common object; determining an actual position of third common object pixels; computing an estimated position of the third common object pixels based on the common object motion information, the third timestamp and the third pixels; if the actual position of the third common object pixels and the estimated position of the third common object pixels don't match, generating the synthetic image.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: February 5, 2019
    Assignee: YANDEX EUROPE AG
    Inventor: Anton Vasilyevich Korzunov
  • Patent number: 10198654
    Abstract: In various example embodiments, a system and method are provided for automated estimation of a saliency map for an image based on a graph structure comprising nodes corresponding to respective superpixels on the image, the graph structure including boundary-connecting nodes that connects each non-boundary node to one or more boundary regions. Each non-boundary node is in some embodiments connected to all boundary nodes by respective boundary-connecting edges forming part of the graph. Edge weights are calculated to generate a weighted graph. Saliency map estimation comprises bringing respective nodes for similarity to a background query. The edge weights of at least some of the edges are in some embodiments calculated as a function of a geodesic distance or shortest path between the corresponding nodes.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: February 5, 2019
    Assignee: eBay Inc.
    Inventors: Qiaosong Wang, Wen Zheng, Robinson Piramuthu
  • Patent number: 10192317
    Abstract: A method for detecting motion information includes the following steps. First, a pixel array is provided for detecting an image of a measured object located in a first distance range or in a second distance range, and the pixel array includes a plurality of invisible image sensing pixels and a plurality of visible image sensing pixels. Then, image detection is conducted within the first distance range by using the invisible image sensing pixels to output a plurality of invisible images. Next, the image detection is conducted within the second distance range by using the visible image sensing pixels to output a plurality of visible images. Then, the plurality of invisible images and the plurality of visible images are analyzed by using a processing unit, so as to obtain motion information of the measured object. A pixel array for detecting motion information and an image sensor are also provided.
    Type: Grant
    Filed: November 26, 2016
    Date of Patent: January 29, 2019
    Assignee: PIXART IMAGING INC.
    Inventors: Han-Chang Lin, Shu-Sian Yang, Shih-Feng Chen
  • Patent number: 10188321
    Abstract: A method of measuring animal health, such as rodent health, such as a degree of arthritis, is described. Steps include capturing video frames, then using optical flow to compute vector fields for each frame, then taking a maximum vector value over a first time period, then selecting a set of maximum vector values over a second time period, then clipping those values to a maximum, then computing an average of those values. This is an animal health metric. Metrics may be organized into a plot over time and may then be compared against known plots to compute an overall animal health and measure efficacy of treatments or other animal characteristics or behavior, including predictive.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: January 29, 2019
    Assignee: Vium, Inc.
    Inventors: Daniel J. Ford, Jonathan Betts-Lacroix
  • Patent number: 10181070
    Abstract: An optical fingerprint sensor includes: cover glass for receiving a finger; a transparent electrode layer below a bottom surface of the cover glass; an organic light emitting diode layer (OLED) below the transparent electrode layer; and a metal electrode layer below the OLED layer. Multiple openings extend through each of the transparent electrode layer, OLED layer, and metal electrode layer, and transmit reflected light reflected from a top surface of the cover glass when a finger is positioned over the top surface of the cover glass. A collimator or pinhole filter is below the metal electrode layer, and includes multiple apertures for transmitting the reflected light after the reflected light is transmitted through the multiple openings. An imager is below the bottom surface of the collimator or pinhole filter, and includes an array of pixels that detects the reflected light after the reflected light is transmitted through the multiple apertures.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: January 15, 2019
    Assignee: Synaptics Incorporated
    Inventors: Patrick Smith, Pascale El Kallassi, Young Seen Lee
  • Patent number: 10169655
    Abstract: A method is provided for detecting static graphical elements in a sequence of video frames that compares a selected frame in the sequence to each of a plurality of previous frames in the sequence to identify a graphical element that can be a logo. For each pair of frames compared, an absolute difference frame is determined by acquiring an absolute difference value between pixel values for corresponding pixels over at least a portion of the frames in the frame pair. A metric associated with each absolute difference frame is generated, which reflects a degree of dissimilarity. At least some of the absolute difference frames weighted in accordance with the metric associated therewith are summed to generate an accumulation difference frame such that pairs of frames that are more dissimilar have a greater weight. A static graphical element is then identified over a region of the accumulation difference frame in which pixel values satisfy specified criteria.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 1, 2019
    Assignee: ARRIS Enterprises LLC
    Inventors: Renxiang Li, Faisal Ishtiaq
  • Patent number: 10165304
    Abstract: An image encoding apparatus includes a calculation unit configured to calculate a profile indicating a combination of processes which can be decoded by an image decoding apparatus and a level indicating a range of a parameter value which can be decoded by the image decoding apparatus, a determination unit configured to determine a number of horizontal pixels of a tile or a number of horizontal tiles with respect to a specific profile to be N or smaller (N>0) which is a maximum number of horizontal pixels defined in advance according to the level, and to determine a number of vertical pixels of the tile or a number of vertical tiles with respect to the specific profile to be M or smaller (M>0) which is a maximum number of vertical pixels defined in advance according to the level.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: December 25, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hideaki Hattori
  • Patent number: 10140529
    Abstract: A method for detecting a lane line is provided. The method includes: determining candidate lane line regions in a lane image by filtering the lane image; extracting center points for each candidate lane line region; obtaining a fitting curve of each candidate lane line region by performing curve fitting on the center points of each candidate lane line region; classifying the candidate lane line regions as rectilinear and curvilinear candidate lane line regions according to a slope angle of the fitting curve of each candidate lane line region; dividing the candidate lane line regions into groups based on the classifying result; and determining two groups, which meet a first predetermined condition, as target groups, and recognizing candidate lane line regions in the target groups as lane line regions. Besides, an apparatus and a device for detecting a lane line are further provided.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: November 27, 2018
    Assignees: NEUSOFT CORPORATION, TECHNOLOGY (SHANGHAI) CO., LTD.
    Inventors: Wenjing Bai, Yingfang Du, Wei Liu, Huai Yuan
  • Patent number: 10108879
    Abstract: The present disclosure includes techniques for selecting a candidate presentation style for individual documents for inclusion in an aggregate training data set for a document type that may be used to train an OCR processing engine prior to identifying text in an image of a document of the document type. In one embodiment, text input corresponding to a text sample in a document is received, and an image of the text sample in the document is received. For each of a plurality of candidate presentation styles, an OCR processing engine is trained using a training data set corresponding to the given candidate presentation style, and the OCR processing engine is used, as trained, to identify text in the received image. The OCR processing results for each candidate presentation style are compared to the received text input. A candidate presentation style for the document is selected based on the comparisons.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: October 23, 2018
    Assignee: Intuit inc.
    Inventors: Eugene Krivopaltsev, Sreeneel K. Maddika, Vijay S. Yellapragada
  • Patent number: 9342674
    Abstract: This application relates to devices, methods and computer readable media that allow users using a first device to be easily authenticated. For example, while the first device is proximate to a second device, the first device requests user authentication using the one or more biometric sensors. After requesting the user authentication, the first device detects biometric information associated with the user with the one or more biometric sensors. In response to detecting the biometric information associated with the user, in accordance with a determination that the detected biometric information associated with the user meets authentication criteria, the first device provides credentials associated with the user to the second device. In accordance with a determination that the detected biometric information associated with the user does not meet the authentication criteria, the first device forgoes providing the credentials associated with the user to the second device.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: May 17, 2016
    Assignee: APPLE INC.
    Inventors: David S. Abdallah, Barry W. Johnson
  • Patent number: 8649633
    Abstract: An image registration system includes a memory storing digital data representing a first image and a second image, an image processing unit configured to register the second image onto a coordinate system of the first image to obtain a registered second image, and a user interface device adapted to display one of the first image or the registered second image, and a movable region having a periphery. The user interface is adapted to display the first image or the registered second image within the periphery and the other image outside the periphery. The image processing unit is adapted to determine a similarity in alignment of a feature of the registered image with a corresponding feature of the first image, and the user interface is adapted to provide a visual indication to indicate the similarity of the alignment.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: February 11, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Palanisamy Onankuttai Subbian, Manivannan Sundarapandian
  • Patent number: 8644597
    Abstract: Methods and apparatus are provided for generating 3D image files based on 2D image media standards. First and second image data are photographed, pre-processed, and stored. The first and second image data are encoded. A 3D image file is generated. The 3D image file includes a first area having the first and second image data synchronized with the first image data so as to be used for generating a 3D image, a second area including at least information on a number of frames and a size of each frame for the first image data, and a third area, separate from the second area, having information on a number of frames and a size of each frame for the second image data. Information stored in third area is for regenerating the 3D image and not for regenerating a 2D image.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: February 4, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Gun-Ill Lee, Kwang-Cheol Choi, Jae-Yeon Song
  • Patent number: 8457439
    Abstract: A system and method of the present disclosure provides a region based error diffusion algorithm or function for reducing artifacts in images. The system and method utilizes knowledge of a region of interest (ROI) in an image and applies effects like dithering or error diffusion to the area or region that shows the artifacts, e.g., a banding phenomenon. The system and method provide for defining a region in at least one first image, the defined region having at least one artifact, tracking the defined region to at least one second image, and applying an error diffusion function to the defined region to mask the at least one artifact in the at least one first and second images.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: June 4, 2013
    Assignee: Thomson Licensing
    Inventors: Xueming Henry Gu, Ju Guo
  • Patent number: 8401231
    Abstract: Provided herein are systems and methods for outdoor lighting, which generally include two or more light sources. One light source is a monochromatic light source producing a light with a peak wavelength of about 580 nm or above. A second light source is a polychromatic light source producing a green-tint white light. During a standby operational mode, a control system maintains the first light source illuminated. The control system, which includes an integrated imaging system, illuminates both the first light source and the second light source when the imaging system identifies a target in an illumination area. Methods of preparing and using such outdoor lighting system are also provided.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: March 19, 2013
    Assignee: Biological Illumination, LLC
    Inventors: Fredric S. Maxik, David E. Bartine, Robert R. Soler, Valerie Ann Bastien, James Lynn Schellack, Eliza Katar Grove
  • Patent number: 8254695
    Abstract: Disclosed is a method for determining the absence or presence of one or more instances of a predetermined pattern in an image, and for determining the location of each found instance within a multidimensional space. A model represents the pattern to be found, the model including a plurality of probes. Each probe represents a relative position at which a test is performed in an image at a given pose, each such test contributing evidence that the pattern exists at the pose. The method further includes a comparison of the model with a run-time image at each of a plurality of poses. A match score is computed at each pose to provide a match score surface. Then, the match score is compared with an accept threshold, and used to provide the location any instances of the pattern in the image.
    Type: Grant
    Filed: December 31, 2004
    Date of Patent: August 28, 2012
    Assignee: Cognex Corporation
    Inventors: William M. Silver, E. John McGarry, Sanjay Nichani, Adam Wagman
  • Patent number: 8121340
    Abstract: A method is provided for decoding an encoded point matrix image including a first set of real grid points aligned along a first axis, a second set of real grid points aligned along a second axis intersecting the first axis, and a plurality of encoded data points distributed throughout the encoded point matrix image. The method includes: locating the first and second axes according to a first predetermined principle; finding a set of virtual grid points according to a second predetermined principle, each of the virtual grid points being located at an intersection of a corresponding first virtual line parallel to the first axis and a corresponding second virtual line parallel to the second axis; and decoding each of the encoded data points based on positional relation thereof with a closest one of the virtual grid points so as to obtain information encoded in the encoded point matrix image.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: February 21, 2012
    Assignee: PixArt Imaging Inc.
    Inventors: Shou-Der Wei, Hsin-Chia Chen, Tzu-Yi Chao
  • Patent number: 8116589
    Abstract: An image processing apparatus includes a partial image memory unit for reading partial image data from an image pickup device and sequentially storing the partial image data, and an image composition unit for generating the composite image data by synthesizing the partial image data from the partial image memory unit. Only when a composition incomplete signal does not exist, the partial image memory unit stores the partial image data and generates a storage completion signal upon completing storage of the partial image data. The image composition unit generates the composition incomplete signal when the composite image data is generated, on condition that the storage completion signal is present. The image composition unit reads at least one of the partial image data from the partial image memory unit and starts the generation of the composite image data using the partial image data when the composite image data is not generated.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: February 14, 2012
    Inventor: Hideki Kamegawa
  • Patent number: 8081820
    Abstract: A method is provided for dividing a pattern into a plurality of sub-patterns, each sub-pattern being adapted for use with an image search method that can provide a plurality of sub-pattern search results. The method represents the pattern as a plurality of feature points, generates candidate partitions of the plurality of feature points, and then scores the candidate partitions by examining characteristics of each potential sub-pattern of each candidate partition. The highest-scoring partition is selected, and then it is applied to the plurality of feature points, creating one or more sub-pluralities of features. The invention advantageously provides a plurality of sub-patterns where each sub-pattern contains enough information to be located with a feature-based search method, where that information has been pre-evaluated as being useful and particularly adapted for running feature-based searches.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: December 20, 2011
    Assignee: Cognex Technology and Investment Corporation
    Inventors: Jason Davis, Juha Koljonen
  • Patent number: 8023769
    Abstract: An apparatus and method for selectively outputting image frames are provided. The apparatus includes a main topic frame extractor which extracts a main topic frame, which expresses a main topic selected by a user, from continuous image frames; a composite image frame creator which extracts a key object to realize the main topic from the main topic frames, and estimates a background object with respect to the key object to create a composite image frame using the key object and the background object; a wide-angle image frame creator which creates a wide-angle image frame, which includes the composite image frame and an image frame having common information to the composite image frame, among the continuous image frames; an attractive region setting unit which sets an attractive region with respect to the wide-angle image frame; and an output unit which outputs the attractive region.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: You-sun Bang, Yun-tae Kim, Heui-keun Choh