Patents by Inventor Thomas Wiegand

Thomas Wiegand 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: 20230188720
    Abstract: Block based decoder configured to partition a picture (10) of more than one color component (101, 102) and of a color sampling format, according to which each color component (101, 102) is equally sampled, into blocks using a partitioning scheme according to which the picture (10) is equally partitioned with respect to each color component (101, 102). Additionally, the block based decoder is configured to decode a first color component (101) of the picture (10) in units of the blocks with selecting, for each of intra-predicted first color component blocks (18?11-18?1n) of the picture (10), one out of a first set (508) of intra-prediction modes.
    Type: Application
    Filed: April 1, 2021
    Publication date: June 15, 2023
    Inventors: Jonathan Pfaff, Tobias Hinz, Philipp Helle, Philipp Merkle, Björn Stallenberger, Michael Schäfer, Benjamin Bross, Heiko Schwarz, Detlev Marpe, Thomas Wiegand
  • Publication number: 20230188719
    Abstract: An entropy decoder is configured to, for horizontal and vertical components of motion vector differences, derive a truncated unary code from the data stream using context-adaptive binary entropy decoding with exactly one context per bin position of the truncated unary code, which is common for horizontal and vertical components of the motion vector differences, and an Exp-Golomb code using a constant equi-probability bypass mode to obtain the binarizations of the motion vector differences. A desymbolizer is configured to debinarize the binarizations of the motion vector difference syntax elements to obtain integer values of the horizontal and vertical components of the motion vector differences. A reconstructor is configured to reconstruct a video based on the integer values of the horizontal and vertical components of the motion vector differences.
    Type: Application
    Filed: November 7, 2022
    Publication date: June 15, 2023
    Inventors: Valeri GEORGE, Benjamin BROSS, Heiner KIRCHHODDER, Detlev MARPE, Tung NGUYEN, Matthias PRIESS, Mischa SIEKMANN, Jan STEGEMANN, Thomas WIEGAND
  • Publication number: 20230188718
    Abstract: A video encoder is configured to entropy encode an absolute value of a quantization level of a current transform coefficient at position (xC, yC), wherein the absolute value is encoded using context adaptive binary arithmetic encoding of bins of a first binarization. The video coder is further configured, for the current transform coefficient, to encode a bin of the first binarization by using a context which is determined based on a sum of minimum absolute values of transform coefficient quantization levels, based on encoded bins of the first binarization, at one or more transform coefficient positions among (xC+1, yC), (xC+2, yC), (xC+1, yC+1), (xC, yC+1), and (xC, yC+2).
    Type: Application
    Filed: February 1, 2023
    Publication date: June 15, 2023
    Inventors: Paul HAASE, Christian RUDAT, Heiner KIRCHHOFFER, Phan Hoang Tung NGUYEN, Mischa SIEKMANN, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20230188694
    Abstract: This disclosure is directed to a multi-view signal, which includes processing a list of plurality of motion vector candidates-associated with coding block of a current picture in a dependent view of the multi-view signal Such processing includes estimating a first motion vector based on asecond motion vector associated with a reference block in a current picture of a reference view of the multi-view signal, the reference block corresponding to the coding block of the current picture in the dependent view. The first motion vector is added into the list, and an index is used that specifies at least one candidate from the list to be used for motion- compensated prediction. The coding block in the current picture is coded by performing the motion-compensated prediction based on the at least one candidate indicated by the index.
    Type: Application
    Filed: November 7, 2022
    Publication date: June 15, 2023
    Inventors: Heiko SCHWARZ, Thomas WIEGAND
  • Patent number: 11677950
    Abstract: Concepts are presented which achieve a more efficient coding of coefficients of a transform block by use of dependent quantization and context adaptive entropy coding or achieve a coding of coefficients of a transform block in a manner which allows a more efficient coding even if a usage of dependent quantization is combined with the usage of context adaptive entropy coding.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: June 13, 2023
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Heiko Schwarz, Thomas Wiegand, Phan Hoang Tung Nguyen, Detlev Marpe
  • Publication number: 20230171425
    Abstract: Video/picture coding of improved coding efficiency with supporting varying resolution and/or efficiently handling region-wise packing.
    Type: Application
    Filed: December 28, 2022
    Publication date: June 1, 2023
    Inventors: Robert SKUPIN, Cornelius HELLGE, Valeri GEORGE, Thomas SCHIERL, Yago SÁNCHEZ DE LA FUENTE, Karsten SÜHRING, Thomas WIEGAND
  • Patent number: 11659169
    Abstract: There are disclosed techniques for block wise encoding and decoding. The techniques may be applied to encoders, decoders, and methods for encoding and/or decoding. In one example, there is provided a technique to decode (resp. decode) a predetermined block of the picture by assigning, based on a first signalization in the data stream, the predetermined block to the first set or the second set, sorting the assigned set of intra-prediction modes according to intra-prediction modes used for neighboring blocks, neighboring the predetermined block, to obtain a list of intra prediction modes, deriving, for the predetermined block, from the data stream, an index into the list of intra prediction modes, predicting the predetermined block using an intra prediction mode onto which the index points. The decoder (resp.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: May 23, 2023
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Jonathan Pfaff, Heiko Schwarz, Philipp Helle, Michael Schäfer, Roman Rischke, Tobias Hinz, Philipp Merkle, Björn Stallenberger, Martin Winken, Mischa Siekmann, Detlev Marpe, Thomas Wiegand
  • Patent number: 11653033
    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: March 24, 2021
    Date of Patent: May 16, 2023
    Assignee: GE Video Compression, LLC
    Inventors: Heiner Kirchhoffer, Martin Winken, Philipp Helle, Detlev Marpe, Heiko Schwarz, Thomas Wiegand
  • Publication number: 20230141029
    Abstract: A decoder for decoding weight parameters of a neural network, wherein the decoder is configured to obtain a plurality of neural network parameters of the neural network on the basis of an encoded bitstream. Furthermore, the decoder is configured to decode the neural network parameters of the neural network using a context-dependent arithmetic decoding Moreover, the decoder is configured to obtain a probability estimate for a decoding of a bin of a number representation of a neural network parameter using one or more probability estimation parameters. In addition, the decoder is configured to use different probability estimation parameter values for a decoding of different neural network parameters and/or to use different probability estimation parameter values for a decoding of bins associated with different context models. Some embodiments are configured to use different probability estimation parameter values for a decoding of neural network parameters of different layers of the neural network.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 11, 2023
    Inventors: Paul HAASE, Karsten MÜLLER, Heiner KIRCHHOFFER, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20230134365
    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: July 26, 2022
    Publication date: May 4, 2023
    Inventors: Heiner KIRCHHOFFER, Jan STEGEMANN, Detlev MARPE, Paul HAASE, Stefan MATLAGE, Christian BARTNIK, Heiko SCHWARZ, Thomas WIEGAND
  • Publication number: 20230138189
    Abstract: An infusion system includes an infusion pump configured to convey a fluid to be administered through a fluid conduit, a number of sensors for producing associated sensor data, and an AI unit configured to calculate a number of target variables depending on the number of sensor data using a statistical model as a basis, the statistical model having been trained using training data.
    Type: Application
    Filed: October 27, 2022
    Publication date: May 4, 2023
    Inventors: Hans-Christian Moritzen, Dennis Obermann, Thomas Wiegand
  • Patent number: 11641473
    Abstract: A video encoder for encoding a video into a data stream using motion compensated prediction for inter predicted blocks, comprising a hypothesis number control, configured to control a number of prediction hypotheses of the inter predicted blocks within a predetermined portion of the video to meet a predetermined criterion.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: May 2, 2023
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Martin Winken, Christian Bartnik, Philipp Helle, Mischa Siekmann, Jonathan Pfaff, Detlev Marpe, Heiko Schwarz, Thomas Wiegand
  • Publication number: 20230117869
    Abstract: The invention describes an encoding scheme for encoding a sequence of integer values, particularly by first using encoding a value at a predetermined position and then consecutively calculating and encoding differences between neighboring values. A respective decoding scheme is also provided. These encoding and decoding schemes provide a more efficient encoding concept.
    Type: Application
    Filed: December 21, 2022
    Publication date: April 20, 2023
    Inventors: Paul HAASE, Karsten MÜLLER, Heiner KIRCHHOFFER, Detlev MARPE, Heiko SCHWARZ, Thomas WIEGAND
  • Patent number: 11625750
    Abstract: A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream. In other embodiments, spatial sub-division is performed depending on a first subset of syntax elements, followed by combining spatially neighboring simply connected regions depending on a second subset of syntax elements, to obtain an intermediate sub-division.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: April 11, 2023
    Assignee: GE Video Compression, LLC
    Inventors: Philipp Helle, Simon Oudin, Martin Winken, Detlev Marpe, Thomas Wiegand
  • Publication number: 20230098693
    Abstract: A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream.
    Type: Application
    Filed: November 3, 2022
    Publication date: March 30, 2023
    Inventors: Philipp HELLE, Simon OUDIN, Martin WINKEN, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20230099885
    Abstract: A favorable merging or grouping of simply connected regions into which the array of information samples is sub-divided, is coded with a reduced amount of data. To this end, a predetermined relative locational relationship is defined enabling an identifying, for a predetermined simply connected region, of simply connected regions within the plurality of simply connected regions which have the predetermined relative locational relationship to the predetermined simply connected region. Namely, if the number is zero, a merge indicator for the predetermined simply connected region may be absent within the data stream. In other embodiments, spatial sub-division is preformed depending on a first subset of syntax elements, followed by combining spatially neighboring simply connected regions depending on a second subset of syntax elements, to obtain an intermediate sub-division.
    Type: Application
    Filed: November 3, 2022
    Publication date: March 30, 2023
    Inventors: Philipp HELLE, Simon OUDIN, Martin WINKEN, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20230095686
    Abstract: An apparatus for receiving a video data stream as an input bitstream is provided. The video data stream has a video encoded thereinto, wherein, for a playback speed modification factor (Nx), the apparatus is to determine a decoding capability requirement depending on a decoding capability requirement limit, wherein the playback speed modification factor (Nx) is a forward playback speed modification factor or is a backward playback speed modification factor.
    Type: Application
    Filed: December 18, 2020
    Publication date: March 30, 2023
    Inventors: Yago SÁNCHEZ DE LA FUENTE, Karsten SÜHRING, Cornelius HELLGE, Thomas SCHIERL, Robert SKUPIN, Thomas WIEGAND
  • Patent number: 11616979
    Abstract: Video/picture coding of improved coding efficiency with supporting varying resolution and/or efficiently handling region-wise packing.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: March 28, 2023
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Robert Skupin, Cornelius Hellge, Valeri George, Thomas Schierl, Yago Sánchez De La Fuente, Karsten Sühring, Thomas Wiegand
  • Publication number: 20230089495
    Abstract: File format concepts for video coding are described. Embodiments allow for an efficient extraction of sub-streams from a video file. Further embodiments allow for a flexible switching between sub-streams of a video file. Further embodiments allow for a flexible handling of decoder initializations.
    Type: Application
    Filed: September 30, 2022
    Publication date: March 23, 2023
    Inventors: Yago SÁNCHEZ DE LA FUENTE, Dimitri PODBORSKI, Karsten GRUENEBERG, Cornelius HELLGE, Thomas SCHIERL, Robert SKUPIN, Thomas WIEGAND
  • Publication number: 20230092331
    Abstract: An apparatus (200) for receiving an input video data stream according to an embodiment is provided. The input video data stream has a video encoded thereinto. The apparatus (200) is configured to generate an output video data stream from the input video data stream.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 23, 2023
    Applicant: GE Video Compression, LLC
    Inventors: Yago SANCHEZ DE LA FUENTE, Karsten SÜHRING, Cornelius HELLGE, Thomas SCHIERL, Robert SKUPIN, Thomas WIEGAND