Patents by Inventor Gary J. Sullivan

Gary J. Sullivan 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).

  • Publication number: 20190289310
    Abstract: Innovations in syntax and semantics of coded picture buffer removal delay (“CPBRD”) values potentially simplify splicing operations. For example, a video encoder sets a CPBRD value for a current picture that indicates an increment value relative to a nominal coded picture buffer removal time of a preceding picture in decoding order, regardless of whether the preceding picture has a buffering period SEI message. The encoder can signal the CPBRD value according to a single-value approach in which a flag indicates how to interpret the CPBRD value, according to a two-value approach in which another CPBRD value (having a different interpretation) is also signaled, or according to a two-value approach that uses a flag and a delta value. A corresponding video decoder receives and parses the CPBRD value for the current picture. A splicing tool can perform simple concatenation operations to splice bitstreams using the CPBRD value for the current picture.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Lihua Zhu
  • Publication number: 20190289291
    Abstract: Innovations in use of chroma quantization parameter (“QP”) offsets when determining a control parameter for deblock filtering. For example, as part of encoding, an encoder sets a picture-level chroma QP offset and slice-level chroma QP offset for encoding of a slice of a picture. The encoder also performs deblock filtering of at least part of the slice, where derivation of a control parameter considers only the picture-level chroma QP offset. The encoder outputs at least part of a bitstream including the encoded content. As part of decoding, a corresponding decoder sets a picture-level chroma QP offset and a slice-level chroma QP offset for decoding of a slice of a picture, but derivation of a control parameter for deblock filtering considers only the picture-level chroma QP offset.
    Type: Application
    Filed: April 18, 2019
    Publication date: September 19, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventor: Gary J. Sullivan
  • Publication number: 20190281309
    Abstract: Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.
    Type: Application
    Filed: May 24, 2019
    Publication date: September 12, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, You Zhou, Chih-Lung Lin
  • Publication number: 20190273927
    Abstract: This application relates to video encoding and decoding, and specifically to tools and techniques for using and providing supplemental enhancement information in bitstreams. Among other things, the detailed description presents innovations for bitstreams having supplemental enhancement information (SEI). In particular embodiments, the SEI message includes picture source data (e.g., data indicating whether the associated picture is a progressive scan picture or an interlaced scan picture and/or data indicating whether the associated picture is a duplicate picture). The SEI message can also express a confidence level of the encoder's relative confidence in the accuracy of this picture source data. A decoder can use the confidence level indication to determine whether the decoder should separately identify the picture as progressive or interlaced and/or a duplicate picture or honor the picture source scanning information in the SEI as it is.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Yongjun Wu
  • Patent number: 10390034
    Abstract: Innovations in encoder-side options for intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding. For example, some of the innovations relate to estimation of sample values within an overlap area of a current block during block vector estimation. Other innovations relate to prediction of block vector (“BV”) values during encoding or decoding using “ping-pong” approaches.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: August 20, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Lihua Zhu, Gary J. Sullivan, Yongjun Wu
  • Publication number: 20190253712
    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 15, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Sandeep Kanumuri
  • Patent number: 10368105
    Abstract: Innovations in the areas of generating, parsing, and using metadata that describes nominal lighting conditions of a reference viewing environment for video playback are presented herein. In various examples described herein, metadata includes parameters that describe the nominal lighting conditions (e.g., level of ambient light, color characteristics of ambient light) of a reference viewing environment. By conveying a representation of the nominal lighting conditions of the reference viewing environment (e.g., one assumed when mastering image content), a transmitter system can enable a receiver system to adapt its local display of the image content.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: July 30, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Gary J. Sullivan
  • Patent number: 10313680
    Abstract: Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 4, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, You Zhou, Chih-Lung Lin
  • Patent number: 10313698
    Abstract: Innovations in syntax and semantics of coded picture buffer removal delay (“CPBRD”) values potentially simplify splicing operations. For example, a video encoder sets a CPBRD value for a current picture that indicates an increment value relative to a nominal coded picture buffer removal time of a preceding picture in decoding order, regardless of whether the preceding picture has a buffering period SEI message. The encoder can signal the CPBRD value according to a single-value approach in which a flag indicates how to interpret the CPBRD value, according to a two-value approach in which another CPBRD value (having a different interpretation) is also signaled, or according to a two-value approach that uses a flag and a delta value. A corresponding video decoder receives and parses the CPBRD value for the current picture. A splicing tool can perform simple concatenation operations to splice bitstreams using the CPBRD value for the current picture.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: June 4, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Lihua Zhu
  • Patent number: 10313670
    Abstract: Innovations in use of chroma quantization parameter (“QP”) offsets when determining a control parameter for deblock filtering. For example, as part of encoding, an encoder sets a picture-level chroma QP offset and slice-level chroma QP offset for encoding of a slice of a picture. The encoder also performs deblock filtering of at least part of the slice, where derivation of a control parameter considers only the picture-level chroma QP offset. The encoder outputs at least part of a bitstream including the encoded content. As part of decoding, a corresponding decoder sets a picture-level chroma QP offset and a slice-level chroma QP offset for decoding of a slice of a picture, but derivation of a control parameter for deblock filtering considers only the picture-level chroma QP offset.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: June 4, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventor: Gary J. Sullivan
  • Publication number: 20190158881
    Abstract: Syntax structures that indicate the completion of coded regions of pictures are described. For example, a syntax structure in an elementary bitstream indicates the completion of a coded region of a picture. The syntax structure can be a type of network abstraction layer unit, a type of supplemental enhancement information message or another syntax structure. For example, a media processing tool such as an encoder can detect completion of a coded region of a picture, then output, in a predefined order in an elementary bitstream, syntax structure(s) that contain the coded region as well as a different syntax structure that indicates the completion of the coded region. Another media processing tool such as a decoder can receive, in a predefined order in an elementary bitstream, syntax structure(s) that contain a coded region of a picture as well as a different syntax structure that indicates the completion of the coded region.
    Type: Application
    Filed: January 4, 2019
    Publication date: May 23, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Yongjun Wu, Lihua Zhu, Shyam Sadhwani, Gary J. Sullivan
  • Publication number: 20190116379
    Abstract: Innovations in signaling of reference picture list (“RPL”) modification information. For example, a video encoder evaluates a condition that depends at least in part on a variable indicating a number of total reference pictures. Depending on the results of the evaluation, the encoder signals in a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. A video decoder evaluates the condition and, depending on results of the evaluation, parses from a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. The condition can be evaluated as part of processing for an RPL, modification structure that includes the flag, or as part of processing for a slice header. The encoder and decoder can also evaluate other conditions that affect syntax elements for list entries of the RPL modification information.
    Type: Application
    Filed: November 15, 2018
    Publication date: April 18, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Sandeep Kanumuri
  • Patent number: 10250882
    Abstract: Innovations in control and use of chroma quantization parameter (“QP”) values that depend on luma QP values. More generally, the innovations relate to control and use of QP values for a secondary color component that depend on QP values for a primary color component. For example, during encoding, an encoder determines a QP index from a primary component QP and secondary component QP offset. The encoder maps the QP index to a secondary component QP, which has an extended range. The encoder outputs at least part of a bitstream including the encoded content. A corresponding decoder receives at least part of a bitstream including encoded content. During decoding, the decoder determines a QP index from a primary component QP and secondary component QP offset, then maps the QP index to a secondary component QP, which has an extended range.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: April 2, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Sandeep Kanumuri
  • Publication number: 20190098307
    Abstract: Innovations in use of chroma quantization parameter (“QP”) offsets when determining a control parameter for deblock filtering. For example, as part of encoding, an encoder sets a picture-level chroma QP offset and slice-level chroma QP offset for encoding of a slice of a picture. The encoder also performs deblock filtering of at least part of the slice, where derivation of a control parameter considers only the picture-level chroma QP offset. The encoder outputs at least part of a bitstream including the encoded content. As part of decoding, a corresponding decoder sets a picture-level chroma QP offset and a slice-level chroma QP offset for decoding of a slice of a picture, but derivation of a control parameter for deblock filtering considers only the picture-level chroma QP offset.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventor: Gary J. Sullivan
  • Publication number: 20190098308
    Abstract: Innovations in adaptive encoding and decoding for units of a video sequence can improve coding efficiency when switching between color spaces during encoding and decoding. For example, some of the innovations relate to adjustment of quantization or scaling when an encoder switches color spaces between units within a video sequence during encoding. Other innovations relate to adjustment of inverse quantization or scaling when a decoder switches color spaces between units within a video sequence during decoding.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu, Gary J. Sullivan
  • Patent number: 10235677
    Abstract: Rating a network interaction is disclosed. A rating system includes an interface for receiving, a rating determiner and an interface for providing. The interface for receiving receives one or more data regarding a new incoming network interaction originated from a third party device over a network. The rating determiner determines a rating of the network interaction based at least in part on the one or more data regarding the network interaction. The interface for providing provides the rating of the network interaction.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: March 19, 2019
    Assignee: comScore, Inc.
    Inventors: Gary J. Sullivan, Jim Pitkow, Marc Brown, Raman Chelliah
  • Patent number: 10205966
    Abstract: Syntax structures that indicate the completion of coded regions of pictures are described. For example, a syntax structure in an elementary bitstream indicates the completion of a coded region of a picture. The syntax structure can be a type of network abstraction layer unit, a type of supplemental enhancement information message or another syntax structure. For example, a media processing tool such as an encoder can detect completion of a coded region of a picture, then output, in a predefined order in an elementary bitstream, syntax structure(s) that contain the coded region as well as a different syntax structure that indicates the completion of the coded region. Another media processing tool such as a decoder can receive, in a predefined order in an elementary bitstream, syntax structure(s) that contain a coded region of a picture as well as a different syntax structure that indicates the completion of the coded region.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: February 12, 2019
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Yongjun Wu, Lihua Zhu, Shyam Sadhwani, Gary J. Sullivan
  • Patent number: 10165302
    Abstract: Innovations in signaling of reference picture list (“RPL”) modification information. For example, a video encoder evaluates a condition that depends at least in part on a variable indicating a number of total reference pictures. Depending on the results of the evaluation, the encoder signals in a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. A video decoder evaluates the condition and, depending on results of the evaluation, parses from a bitstream a flag that indicates whether an RPL is modified according to syntax elements explicitly signaled in the bitstream. The condition can be evaluated as part of processing for an RPL modification structure that includes the flag, or as part of processing for a slice header. The encoder and decoder can also evaluate other conditions that affect syntax elements for list entries of the RPL modification information.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: December 25, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Sandeep Kanumuri
  • Publication number: 20180329978
    Abstract: Innovations for category-prefixed data batching (“CPDB”) of entropy-coded data or other payload data for coded media data, as well as innovations for corresponding recovery of the entropy-coded data (or other payload data) formatted with CPDB. The CPDB can be used in conjunction with coding/decoding for video content, image content, audio content or another type of content. For example, after receiving coded media data in multiple categories from encoding units, a formatting tool formats payload data with CPDB, generating a batch prefix for a batch of the CPDB-formatted payload data. The batch prefix includes a category identifier and a data quantity indicator. The formatting tool outputs the CPDB-formatted payload data to a bitstream. At the decoder side, a formatting tool receives the CPDB-formatted payload data in a bitstream, recovers the payload data from the CPDB-formatted payload data, and outputs the payload data (e.g., to decoding units).
    Type: Application
    Filed: January 5, 2018
    Publication date: November 15, 2018
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gary J. Sullivan, Leon Bottou, Sandeep Kanumuri, Yongjun Wu
  • Patent number: 10116937
    Abstract: Innovations in adaptive encoding and decoding for units of a video sequence can improve coding efficiency when switching between color spaces during encoding and decoding. For example, some of the innovations relate to adjustment of quantization or scaling when an encoder switches color spaces between units within a video sequence during encoding. Other innovations relate to adjustment of inverse quantization or scaling when a decoder switches color spaces between units within a video sequence during decoding.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 30, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Bin Li, Jizheng Xu, Gary J. Sullivan