Patents by Inventor Heiner Kirchhoffer

Heiner Kirchhoffer 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: 11070822
    Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: July 20, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Heiner Kirchhoffer, Heiko Schwarz, Tung Nguyen, Detlev Marpe, Thomas Wiegand
  • Publication number: 20210211686
    Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.
    Type: Application
    Filed: March 25, 2021
    Publication date: July 8, 2021
    Inventors: Heiner KIRCHHOFFER, Heiko SCHWARZ, Tung NGUYEN, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210211743
    Abstract: Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and/or video coding applications.
    Type: Application
    Filed: March 24, 2021
    Publication date: July 8, 2021
    Inventors: Heiner KIRCHHOFFER, Martin WINKEN, Philipp HELLE, Detlev MARPE, Heiko SCHWARZ, Thomas WIEGAND
  • Publication number: 20210211701
    Abstract: The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Inventors: Valeri GEORGE, Anastasia HENKEL, Heiner KIRCHHOFFER, Detlev MARPE, Thomas SCHIERL
  • Publication number: 20210176473
    Abstract: A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 10, 2021
    Inventors: Martin WINKEN, Heiner KIRCHHOFFER, Heiko SCHWARZ, Detlev Marpe, Thomas WIEGAND
  • Patent number: 11032556
    Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: June 8, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Heiner Kirchhoffer, Heiko Schwarz, Tung Nguyen, Detlev Marpe, Thomas Wiegand
  • Patent number: 11025926
    Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: June 1, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Heiner Kirchhoffer, Heiko Schwarz, Tung Nguyen, Detlev Marpe, Thomas Wiegand
  • Patent number: 11019352
    Abstract: The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: May 25, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Valeri George, Anastasia Henkel, Heiner Kirchhoffer, Detlev Marpe, Thomas Schierl
  • Patent number: 11012695
    Abstract: A decoder includes an entropy decoder configured to derive a number of bins of the binarizations from the data stream using binary entropy decoding by selecting a context among different contexts and updating probability states associated with the different contexts, dependent on previously decoded portions of the data stream; a desymbolizer configured to debinarize the binarizations of the syntax elements to obtain integer values of the syntax elements; a reconstructor configured to reconstruct the video based on the integer values of the syntax elements using a quantization parameter, wherein the entropy decoder is configured to distinguish between 126 probability states and to initialize the probability states associated with the different contexts according to a linear equation of the quantization parameter, wherein the entropy decoder is configured to, for each of the different contexts, derive a slope and an offset of the linear equation from first and second four bit parts of a respective 8 bit initial
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: May 18, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Valeri George, Benjamin Bross, Heiner Kirchhoffer, Detlev Marpe, Tung Nguyen, Matthias Preiss, Mischa Siekmann, Jan Stegemann, Thomas Wiegand
  • Publication number: 20210126650
    Abstract: An arithmetic encoder for encoding a plurality of symbols having symbol values is configured to derive an interval size information for an arithmetic encoding of one or more symbol values to be encoded based on a plurality of state variable values representing statistics of a plurality of previously encoded symbol values with different adaptation time constants. The arithmetic encoder is configured to map a first state variable value, or a scaled and/or rounded version thereof, using a lookup-table and to map a second state variable value, or a scaled and/or rounded version thereof using the lookup-table, in order to obtain the interval size information describing an interval size for the arithmetic encoding of one or more symbols to be encoded. Further arithmetic encoders, arithmetic decoders, video encoders, video decoder, methods for encoding, methods for decoding and computer programs are also disclosed which are based on the same concept and on other concepts.
    Type: Application
    Filed: January 5, 2021
    Publication date: April 29, 2021
    Inventors: Heiner Kirchhoffer, Jan Stegemann, Detlev Marpe, Paul Haase, Stefan Matlage, Christian Bartnik, Heiko Schwarz, Thomas Wiegand
  • Publication number: 20210120271
    Abstract: An idea used herein is to use the same function for the dependency of the context and the dependency of the symbolization parameter on previously coded/decoded transform coefficients. Using the same function—with varying function parameter—may even be used with respect to different transform block sizes and/or frequency portions of the transform blocks in case of the transform coefficients being spatially arranged in transform blocks. A further variant of this idea is to use the same function for the dependency of a symbolization parameter on previously coded/decoded transform coefficients for different sizes of the current transform coefficient's transform block, different information component types of the current transform coefficient's transform block and/or different frequency portions the current transform coefficient is located within the transform block.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Inventors: Tung NGUYEN, Heiner KIRCHHOFFER, Detlev MARPE
  • Patent number: 10924754
    Abstract: The entropy coding of a current part of a predetermined entropy slice is based on, not only, the respective probability estimations of the predetermined entropy slice as adapted using the previously coded part of the predetermined entropy slice, but also probability estimations as used in the entropy coding of a spatially neighboring, in entropy slice order preceding entropy slice at a neighboring part thereof. Thereby, the probability estimations used in entropy coding are adapted to the actual symbol statistics more closely, thereby lowering the coding efficiency decrease normally caused by lower-delay concepts. Temporal interrelationships are exploited additionally or alternatively.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: February 16, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Valeri George, Anastasia Henkel, Heiner Kirchhoffer, Detlev Marpe, Thomas Schierl
  • Publication number: 20210044835
    Abstract: A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. Thereby, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these entities. However, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier, i.e. with lower delay, than the un-chopped original entities. According to another aspect combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles so as to be able to, in parallel, serve a multi-threaded decoder with the corresponding substreams or tiles.
    Type: Application
    Filed: October 28, 2020
    Publication date: February 11, 2021
    Inventors: Thomas SCHIERL, Valeri GEORGE, Karsten GRUENEBERG, Heiner KIRCHHOFFER, Anastasia HENKEL, Detlev MARPE
  • Publication number: 20210029359
    Abstract: Concepts for more efficiently coding a picture and/or a video a data stream are described, in particular, ones using efficient transform coefficient block coding.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 28, 2021
    Inventors: Paul HAASE, Christian RUDAT, Heiner KIRCHHOFFER, Phan Hoang Tung NGUYEN, Mischa SIEKMANN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210029365
    Abstract: A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.
    Type: Application
    Filed: October 8, 2020
    Publication date: January 28, 2021
    Inventors: Martin WINKEN, Heiner KIRCHHOFFER, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210029360
    Abstract: Concepts for more efficiently coding a picture and/or a video a data stream are described, in particular, ones using efficient transform coefficient block coding.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 28, 2021
    Inventors: Paul HAASE, Christian RUDAT, Heiner KIRCHHOFFER, Phan Hoang Tung NGUYEN, Mischa SIEKMANN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210014512
    Abstract: A video decoder is configured to decode a plurality of video frames which are subdivided into a set of one or more slices. The decoder evaluates slice type information indicating whether a slice is encoded using an independent coding mode having no prediction of video content of a current frame on the basis of a video content of a previous frame, or using a single-predictive mode having a prediction of a block of pixels on the basis of one block of pixels of a previous frame, or using a bi-predictive mode having a prediction of a block of pixels on the basis of two or more blocks of pixels of one or more previous frames, to select a mode of operation for decoding a slice. The video decoder includes an arithmetic decoder for providing a decoded binary sequence on the basis of an encoded representation of the binary sequence.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Inventors: Jan STEGEMANN, Heiner KIRCHHOFFER, Detlev MARPE, Heiko SCHWARZ, Thomas WIEGAND
  • Patent number: 10893301
    Abstract: Coding schemes for coding a spatially sampled information signal using sub-division and coding schemes for coding a sub-division or a multitree structure are described, wherein representative embodiments relate to picture and/or video coding applications.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: January 12, 2021
    Assignee: GE VIDEO COMPRESSION, LLC
    Inventors: Heiner Kirchhoffer, Martin Winken, Philipp Helle, Detlev Marpe, Heiko Schwarz, Thomas Wiegand
  • Publication number: 20210006804
    Abstract: A higher coding efficiency for coding a significance map indicating positions of significant transform coefficients within a transform coefficient block is achieved by the scan order by which the sequentially extracted syntax elements indicating, for associated positions within the transform coefficient block, as to whether at the respective position a significant or insignificant transform coefficient is situated, are sequentially associated to the positions of the transform coefficient block, among the positions of the transform coefficient block depends on the positions of the significant transform coefficients indicated by previously associated syntax elements. Alternatively, the first-type elements may be context-adaptively entropy decoded using contexts which are individually selected for each of the syntax elements dependent on a number of significant transform coefficients in a neighborhood of the respective syntax element, indicated as being significant by any of the preceding syntax elements.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Inventors: Heiner KIRCHHOFFER, Heiko SCHWARZ, Tung NGUYEN, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210006821
    Abstract: A coding efficiency increase is achieved by using a common signalization within the bitstream with regard to activation of merging and activation of the skip mode. One possible state of one or more syntax elements within the bitstream may signalize for a current sample set of a picture that the sample set is to be merged and has no prediction residual encoded and inserted into the bitstream. A common flag may signalize whether the coding parameters associated with a current sample set are to be set according to a merge candidate or to be retrieved from the bitstream, and whether the current sample set of the picture is to be reconstructed based on a prediction signal depending on the coding parameters associated with the current sample set, without any residual data, or to be reconstructed by refining the prediction signal depending on the coding parameters associated with the current sample set by means of residual data within the bitstream.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Inventors: Heiko SCHWARZ, Heiner KIRCHHOFFER, Philipp HELLE, Simon OUDIN, Jan STEGEMANN, Benjamin BROSS, Detlev MARPE, Thomas WIEGAND