Patents by Inventor Ratna Beresford

Ratna Beresford has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11004129
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: May 11, 2021
    Assignee: Sony Europe B.V.
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Publication number: 20180225736
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Applicant: SONY EUROPE LIMITED
    Inventors: Mikael Carl LANG, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Patent number: 9940655
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: April 10, 2018
    Assignee: SONY EUROPE LIMITED
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Publication number: 20160140636
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Applicant: Sony Europe Limited
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Patent number: 9269105
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 23, 2016
    Assignee: SONY EUROPE LIMITED
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Patent number: 8385646
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: February 26, 2013
    Assignee: Sony United Kingdom Limited
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Patent number: 8363980
    Abstract: A method of calculating a transform matrix for transforming points in a model of an object to an image of the object captured by a camera. The camera produces a two dimensional view of the object, the object having a plane, which includes a plurality of lines defining features on the plane of the object. The method comprises identifying a plurality of triplets of points on the lines of the object in the image from the camera, each of the triplets of points providing three or more non co-linear points on the lines of the object.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: January 29, 2013
    Assignee: Sony Corporation
    Inventors: Ratna Beresford, Michael John Williams
  • Publication number: 20100246887
    Abstract: There is described an apparatus and method for tracking objects in video. In particular, there is described a method and apparatus that improves the realism of the object in the captured scene. This improvement is effected by identifying a first and last frame in a video and subjecting the detected path of the object to a correcting function which improves the output positional data.
    Type: Application
    Filed: March 16, 2010
    Publication date: September 30, 2010
    Applicant: SONY CORPORATION
    Inventors: Ratna BERESFORD, Daniel Lennon
  • Publication number: 20090310861
    Abstract: An image processing method includes partitioning an image under test to form a plurality of contiguous image segments having similar image properties, deriving feature data from a subset including one or more of the image segments, and comparing the feature data from the subset of image segments with feature data derived from respective image segments of one or more other images so as to detect a similarity between the image under test and the one or more other images.
    Type: Application
    Filed: September 29, 2006
    Publication date: December 17, 2009
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
  • Publication number: 20090067668
    Abstract: A method of calculating a transform matrix for transforming points in a model of an object to an image of the object captured by a camera. The camera produces a two dimensional view of the object, the object having a plane, which includes a plurality of lines defining features on the plane of the object. The method comprises identifying a plurality of triplets of points on the lines of the object in the image from the camera, each of the triplets of points providing three or more non co-linear points on the lines of the object.
    Type: Application
    Filed: August 26, 2008
    Publication date: March 12, 2009
    Applicant: Sony Corporation
    Inventors: Ratna BERESFORD, Michael John Williams
  • Publication number: 20080165247
    Abstract: An image processing apparatus is operable to generate at least one processed image from an input image. The image processing apparatus is operable to receive the input image represented as a plurality of pixels each of which includes red, green and blue component values and to apply, for example, a k-means clustering algorithm to identify k local mean for the values of the red, green and blue component values, where k is an integer. The image processing apparatus is operable to identify for each local mean of the pixels for each of the red, green and blue components, a candidate range of component values, and a mapping function for mapping the candidate range of component values onto a dynamic range of possible component values for representing the image. The image processing apparatus is operable to apply for each of the red, green and blue components of each pixel of the input image the identified mapping function, to form for each of the k-local mean a processed image for display.
    Type: Application
    Filed: November 21, 2007
    Publication date: July 10, 2008
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Ratna Beresford, Daniel James Lennon
  • Publication number: 20070098222
    Abstract: Apparatus is arranged in operation to perform a method of estimating the number of individuals in a scene. The method comprises generating, for a plurality of image positions within at least a portion of a captured image of the scene, an edge correspondence value indicative of positional and angular correspondence with a representation of at least a partial outline of an individual. Analysis of the edge correspondence value is used to detect whether each of the plurality of image positions contributes to at least part of an image of an individual.
    Type: Application
    Filed: October 24, 2006
    Publication date: May 3, 2007
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Robert Porter, Ratna Beresford, Simon Haynes
  • Publication number: 20070098268
    Abstract: A method of classifying a video shot comprises predicting an image from a preceding image using a parameter based image transform, and comparing points in the predicted image with corresponding points in a current image to generate an point error value for each point. These point error values are used to identify those points whose point error value exceeds a point error threshold. Then, for corresponding points on images used as input to subsequent calculations that update the image transform parameters, the points so identified are excluded from contributing to said calculations.
    Type: Application
    Filed: October 20, 2006
    Publication date: May 3, 2007
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventor: Ratna Beresford
  • Publication number: 20070076922
    Abstract: A method of object detection in video images comprises the steps of: detecting the size and image position of a first object part in two or more images; detecting attributes of a second object part, the second object part being defined by a predetermined orientation and size defined with respect to the size and position of the first object part; and comparing the detected attributes of the second object part in the two or more images detected to contain the first object part; in which the likelihood that the two or more images contain the same object is dependent at least on the comparison of the detected attributes of the second object part in those images.
    Type: Application
    Filed: August 15, 2006
    Publication date: April 5, 2007
    Applicant: SONY UNITED KINGDOM LIMITED
    Inventors: Jonathan Living, Robert Porter, Ratna Beresford