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).
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Patent number: 11004129Abstract: 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: GrantFiled: April 2, 2018Date of Patent: May 11, 2021Assignee: Sony Europe B.V.Inventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Publication number: 20180225736Abstract: 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: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Applicant: SONY EUROPE LIMITEDInventors: Mikael Carl LANG, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Patent number: 9940655Abstract: 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: GrantFiled: January 21, 2016Date of Patent: April 10, 2018Assignee: SONY EUROPE LIMITEDInventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Publication number: 20160140636Abstract: 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: ApplicationFiled: January 21, 2016Publication date: May 19, 2016Applicant: Sony Europe LimitedInventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Patent number: 9269105Abstract: 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: GrantFiled: February 25, 2013Date of Patent: February 23, 2016Assignee: SONY EUROPE LIMITEDInventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Patent number: 8385646Abstract: 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: GrantFiled: September 29, 2006Date of Patent: February 26, 2013Assignee: Sony United Kingdom LimitedInventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Patent number: 8363980Abstract: 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: GrantFiled: August 26, 2008Date of Patent: January 29, 2013Assignee: Sony CorporationInventors: Ratna Beresford, Michael John Williams
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Publication number: 20100246887Abstract: 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: ApplicationFiled: March 16, 2010Publication date: September 30, 2010Applicant: SONY CORPORATIONInventors: Ratna BERESFORD, Daniel Lennon
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Publication number: 20090310861Abstract: 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: ApplicationFiled: September 29, 2006Publication date: December 17, 2009Applicant: SONY UNITED KINGDOM LIMITEDInventors: Mikael Carl Lang, Robert Mark Stefan Porter, Paul Edward Prayle, Ratna Beresford, Jonathan Richard Thorpe, Michael John Williams
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Publication number: 20090067668Abstract: 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: ApplicationFiled: August 26, 2008Publication date: March 12, 2009Applicant: Sony CorporationInventors: Ratna BERESFORD, Michael John Williams
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Publication number: 20080165247Abstract: 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: ApplicationFiled: November 21, 2007Publication date: July 10, 2008Applicant: SONY UNITED KINGDOM LIMITEDInventors: Ratna Beresford, Daniel James Lennon
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Publication number: 20070098222Abstract: 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: ApplicationFiled: October 24, 2006Publication date: May 3, 2007Applicant: SONY UNITED KINGDOM LIMITEDInventors: Robert Porter, Ratna Beresford, Simon Haynes
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Publication number: 20070098268Abstract: 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: ApplicationFiled: October 20, 2006Publication date: May 3, 2007Applicant: SONY UNITED KINGDOM LIMITEDInventor: Ratna Beresford
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Publication number: 20070076922Abstract: 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: ApplicationFiled: August 15, 2006Publication date: April 5, 2007Applicant: SONY UNITED KINGDOM LIMITEDInventors: Jonathan Living, Robert Porter, Ratna Beresford