Patents by Inventor Frank Jan Bossen

Frank Jan Bossen 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: 10897630
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: January 19, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10863195
    Abstract: The present invention provides low complexity planar mode coding in which a first prediction value is calculated using linear interpolation between a value of respective horizontal boundary pixels and a value of one of vertical boundary pixels, and a second prediction value is calculated using linear interpolation between a value of respective vertical boundary pixels and a value of one of the horizontal boundary pixels. The first and second prediction values are then averaged to derive a respective prediction pixel value in a prediction block. A residual between the prediction block and a target block is signaled to a decoder.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 8, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10856008
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 1, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10841613
    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: July 12, 2019
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Thiow Keng Tan
  • Patent number: 10841611
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10841614
    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: July 12, 2019
    Date of Patent: November 17, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Thiow Keng Tan
  • Patent number: 10834423
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 10, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10805633
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10805632
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 13, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10771812
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: September 8, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Sandeep Kanumuri
  • Patent number: 10735746
    Abstract: The invention relates to a motion compensation performed under an inter-frame prediction. A fractional sample interpolation is applied on retrieved samples to generate fractional samples. The fractional sample interpolation comprises a plurality of filtering operations, and all of filtered results from the filtering operations are truncated down to a predetermined bit depth independent of the bit depth of the samples stored in the reference picture memory.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 4, 2020
    Assignee: NTT DOCOMO, INC.
    Inventor: Frank Jan Bossen
  • Patent number: 10721481
    Abstract: The invention relates to a motion compensation performed under an inter-frame prediction. A fractional sample interpolation is applied on retrieved samples to generate fractional samples. The fractional sample interpolation comprises a plurality of filtering operations, and all of filtered results from the filtering operations are truncated down to a predetermined bit depth independent of the bit depth of the samples stored in the reference picture memory.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 21, 2020
    Assignee: NTT DOCOMO, INC.
    Inventor: Frank Jan Bossen
  • Patent number: 10484006
    Abstract: An arithmetic encoder is provided for converting an event sequence comprised of a plurality of events to an information sequence comprised of at least one information piece, and includes a core engine for receiving an event of the event sequence, and a probability estimate from a probability estimator, and generating zero or more pieces of the information sequence responsive to the received event and the probability estimate by bounding the ratio of events to information pieces. An arithmetic encoder is provided that is capable of constraining a number of events in at least one event sequence as a function of the number of generated information pieces in at least one information sequence.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: November 19, 2019
    Assignee: NTT DOCOMO, INC.
    Inventor: Frank Jan Bossen
  • Publication number: 20190335201
    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: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Frank Jan BOSSEN, Thiow Keng TAN
  • Publication number: 20190335202
    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: Application
    Filed: July 12, 2019
    Publication date: October 31, 2019
    Inventors: Frank Jan BOSSEN, Thiow Keng TAN
  • Patent number: 10397608
    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: February 23, 2018
    Date of Patent: August 27, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Frank Jan Bossen, Thiow Keng Tan
  • Patent number: 10291255
    Abstract: An arithmetic encoder is provided for converting an event sequence comprised of a plurality of events to an information sequence comprised of at least one information piece, and includes a core engine for receiving an event of the event sequence, and a probability estimate from a probability estimator, and generating zero or more pieces of the information sequence responsive to the received event and the probability estimate by bounding the ratio of events to information pieces. An arithmetic encoder is provided that is capable of constraining a number of events in at least one event sequence as a function of the number of generated information pieces in at least one information sequence.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: May 14, 2019
    Assignee: NTT DOCOMO, INC.
    Inventor: Frank Jan Bossen
  • Publication number: 20190098320
    Abstract: The invention relates to a motion compensation performed under an inter-frame prediction. A fractional sample interpolation is applied on retrieved samples to generate fractional samples. The fractional sample interpolation comprises a plurality of filtering operations, and all of filtered results from the filtering operations are truncated down to a predetermined bit depth independent of the bit depth of the samples stored in the reference picture memory.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventor: Frank Jan BOSSEN
  • Publication number: 20190098319
    Abstract: The invention relates to a motion compensation performed under an inter-frame prediction. A fractional sample interpolation is applied on retrieved samples to generate fractional samples. The fractional sample interpolation comprises a plurality of filtering operations, and all of filtered results from the filtering operations are truncated down to a predetermined bit depth independent of the bit depth of the samples stored in the reference picture memory.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventor: Frank Jan BOSSEN
  • Publication number: 20190075318
    Abstract: The present invention provides low complexity planar mode coding in which a value of a bottom-right pixel in a prediction block is calculated from a value of at least one pixel in at least one of an array of horizontal boundary pixels and an array of vertical boundary pixels. Linear and bi-linear interpolations on the value of the bottom-right pixel and values of at least some of the horizontal and vertical boundary pixels to derive values of remaining pixels in the prediction block. A residual between the prediction block and an original block is signaled to a decoder.
    Type: Application
    Filed: October 17, 2018
    Publication date: March 7, 2019
    Inventors: Frank Jan BOSSEN, Sandeep KANUMURI