Patents by Inventor Detlev Marpe

Detlev Marpe 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: 20210144389
    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: December 22, 2020
    Publication date: May 13, 2021
    Inventors: Heiner HIRCHHOFFER, Heiko SCHWARZ, Tung NGUYEN, Detlev MARPE, Thomas WIEGAND
  • Patent number: 11006136
    Abstract: The signalization of the inter-layer dependencies between layers of a multi-layered data stream is described. A good compromise between a too intensive restriction of the potential diversity of inter-layer dependencies on the one hand and a too complex signaling of the inter-layer dependencies on the other hand has been found by describing the inter-layer dependencies by way of a first inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by a base layer-ID and a second inter-dependency syntax structure indicating inter-dependencies between pairs of different values representable by an extension layer-ID, the base layer ID and extension layer ID indexing the layers the portions of the multi-layer data stream are associated with.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 11, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Karsten Suehring, Thomas Schierl, Detlev Marpe, Robert Skupin, Yago Sanchez de la Fuente, Gerhard Tech
  • Publication number: 20210136385
    Abstract: Concepts for transform coefficient block coding are described which enable coding of coefficients of a transform block in a manner suitable for dependent quantization and effectively implementable by entropy coding in terms of coding efficiency.
    Type: Application
    Filed: December 24, 2020
    Publication date: May 6, 2021
    Inventors: Heiko SCHWARZ, Phan Hoang Tung NGUYEN, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210136373
    Abstract: Block-based coding of a picture is done by providing an intra-prediction coding concept according to which a certain block of the picture is intra-prediction coded using a certain intra-coding mode by partitioning the predetermined block into partitions which are, for reconstruction purposes, sequentially subject to spatial prediction using the intra-prediction coding mode signaled for the certain block followed by correcting the thus obtained predictor using a prediction residual so that for preceding partitions a reconstruction of the samples is available to the decoder at the time of processing the next, then current, partition.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Santiago DE LUXÁN HERNÁNDEZ, Philipp MERKLE, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210136386
    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: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventors: Martin WINKEN, Christian BARTNIK, Philipp HELLE, Mischa SIEKMANN, Jonathan PFAFF, Detlev MARPE, Heiko SCHWARZ, Thomas WIEGAND
  • Publication number: 20210127111
    Abstract: A video decoder for decoding an encoded video signal including encoded picture data and indication data of a picture of a video to reconstruct the picture of the video is provided. The video decoder includes an interface configured for receiving the encoded video signal, and a data decoder configured for reconstructing the picture of the video by decoding the encoded picture data using the indication data. The picture is partitioned into a plurality of coding areas. One or more coding areas of the plurality of coding areas include two or more coding tree units of the plurality of coding tree units, wherein each coding area of the one or more coding areas which includes two or more coding tree units exhibits a coding order for the two or more coding tree units of the coding area.
    Type: Application
    Filed: January 4, 2021
    Publication date: April 29, 2021
    Inventors: Valeri GEORGE, Tobias HINZ, Jackie MA, Yago SÁNCHEZ DE LA FUENTE, Robert SKUPIN, Thomas SCHIERL, Jens BRANDENBURG, Christian LEHMANN, Adam WIECKOWSKI, Heiko SCHWARZ, Detlev MARPE, 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
  • Publication number: 20210120240
    Abstract: A video encoder is configured to encode, by block based predictive encoding, pictures of a video into coding data, wherein the block based predictive encoding includes an intra-picture prediction. The video encoder is configured to use, for the intra-picture prediction, for encoding a prediction block of a picture, a plurality of nearest reference samples of the picture directly neighboring the prediction block and a plurality of extended reference samples, each extended reference sample of the plurality of extended reference samples separated from the prediction block at least by one nearest reference sample of the plurality of reference samples. The video encoder is further configured to sequentially determine an availability or unavailability of each of the plurality of nearest reference samples and to substitute a nearest reference sample being determined as unavailable by a substitution sample. The video encoder is configured to use the substitution sample for the intra-picture prediction.
    Type: Application
    Filed: December 28, 2020
    Publication date: April 22, 2021
    Inventors: Benjamin BROSS, Philipp MERKLE, Simone WALTER, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND, Paul KEYDEL
  • Patent number: 10986352
    Abstract: Although wedgelet-based partitioning seems to represent a better tradeoff between side information rate on the one hand and achievable variety in partitioning possibilities on the other hand, compared to contour partitioning, the ability to alleviate the constraints of the partitioning to the extent that the partitions have to be wedgelet partitions, enables applying relatively uncomplex statistical analysis onto overlaid spatially sampled texture information in order to derive a good predictor for the bi-segmentation in a depth/disparity map. Thus, in accordance with a first aspect it is exactly the increase of the freedom which alleviates the signaling overhead provided that co-located texture information in form of a picture is present. Another aspect pertains the possibility to save side information rate involved with signaling a respective coding mode supporting irregular partitioning.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: April 20, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
  • Publication number: 20210112244
    Abstract: Wedgelet separation lines of neighboring blocks are predicted from each other by aligning the wedgelet separation lines of such neighboring blocks to each other, thereby reducing the side information coding rate that may be used.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Philipp MERKLE, Christian BARTNIK, Haricharan LAKSHMAN, Detlev MARPE, Karsten MUELLER, Thomas WIEGAND, Gerhard TECH
  • Publication number: 20210112272
    Abstract: A video decoder and method for supporting a prediction mode for predicting blocks of a video is configured to predict each of the blocks by extrapolating a neighborhood of the respective block into the block along a direction which varies across the respective block.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 15, 2021
    Inventors: Philipp MERKLE, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210084304
    Abstract: The coding of a media signal is rendered more efficient by describing the media signal using a sequence of samples and sequentially encoding this sequence by selecting, for a current sample, a set of quantization levels out of a plurality of quantization level sets depending on indices encoded into the data stream for previous samples of the sequence of samples, quantizing the current sample onto one level of the set of quantization levels, and encoding a quantization index to the one level for the current sample into the data stream. In other words, scalar quantization of the individual samples of the sequence of samples is used, but it is rendered dependent on quantization indices encoded into the data stream for previous samples of the sequence of samples.
    Type: Application
    Filed: September 25, 2020
    Publication date: March 18, 2021
    Inventors: Heiko SCHWARZ, Thomas WIEGAND, Phan Hoang Tung NGUYEN, Detlev MARPE
  • Publication number: 20210084313
    Abstract: The refinement of block-based predictive coding and decoding of pictures as applicable in, e.g., hybrid video codecs, using additional reconstructed samples or residuals is described. An apparatus for block-based predictive decoding of a picture is described. The apparatus includes a combiner configured to combine a residual signal a predetermined block of the picture and a reference signal for the predetermined block so as to obtain a first spectrum, the residual signal correcting a prediction error of a prediction of the predetermined block of the picture; a reducer configured to perform thresholding on the first spectrum to obtain a second spectrum so that coefficients below a threshold value are set to a predefined value; an extractor configured to obtain from the second spectrum a modified version of the residual signal; and a reconstructor block configured to decode the predetermined block of the picture from the data stream on the basis of the modified version of the residual signal.
    Type: Application
    Filed: September 29, 2020
    Publication date: March 18, 2021
    Inventors: Phan Hoang Tung NGUYEN, Gerhard TECH, Jonathan PFAFF, Michael SCHÄFER, Jennifer RASCH, Tobias HINZ, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210084329
    Abstract: Video decoder and/or video encoder, configured to determine a set of search area location candidates in a reference picture of a video; match the set of search area location candidates with a current template area adjacent to a current block of a current picture to obtain a best matching search area location candidate; select, out of a search area positioned in the reference picture at the best matching search area location candidate, a set of one or more predictor blocks by matching the current template area against the search area; and predictively decode/encode the current block from/into a data stream based on the set of one or more predictor blocks.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 18, 2021
    Inventors: Gayathri VENUGOPAL, Detlev MARPE, Thomas WIEGAND
  • Publication number: 20210084301
    Abstract: In transform coefficient coding, predetermined sets of transforms may be used. Embodiments of the present invention provide an encoder and a decoder for encoding a picture into/from a data stream using block-based prediction and block-based residual coding, the encoder and decoder supporting a set of transforms for the block-based residual coding. The encoder and decoder are configured to determine a transform candidate list of transforms for a current residual block out of the set of transforms based on a height and a width of the current residual block, and to encode/decode a prediction residual within the residual block using one selected transform out of the selectable list of transforms and selectively signal/derive the selected transform in/from the data stream.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 18, 2021
    Inventors: Mischa SIEKMANN, Bjoern STALLENBERGER, Christian BARTNIK, Sebastian BOSSE, Jonathan PFAFF, Philipp HELLE, Jackie MA, Martin WINKEN, Detlev MARPE, Heiko SCHWARZ, Thomas WIEGAND
  • 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
  • Patent number: 10924748
    Abstract: Although wedgelet-based partitioning seems to represent a better tradeoff between side information rate on the one hand and achievable variety in partitioning possibilities on the other hand, compared to contour partitioning, the ability to alleviate the constraints of the partitioning to the extent that the partitions have to be wedgelet partitions, enables applying relatively uncomplex statistical analysis onto overlaid spatially sampled texture information in order to derive a good predictor for the bi-segmentation in a depth/disparity map. Thus, in accordance with a first aspect it is exactly the increase of the freedom which alleviates the signaling overhead provided that co-located texture information in form of a picture is present. Another aspect pertains the possibility to save side information rate involved with signaling a respective coding mode supporting irregular partitioning.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: February 16, 2021
    Assignee: GE Video Compression, LLC
    Inventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
  • Publication number: 20210044814
    Abstract: A signaling of the layer ID is described which each of the packets of a multi-layered video signal is associated with. In particular, an efficient way of signaling this layer association is achieved, with nevertheless maintaining the backward compatibility with codecs according to which a certain value of the base layer-ID field is restricted to be non-extendable such as base layer-ID value 0 in the base layer-ID field. Instead of circumventing this restriction specifically with respect to this non-extendable base layer-ID value, the layer-ID of portions of the multi-layer data stream is signaled in an extendable manner by sub-dividing the base layer-ID field into a first sub-field and a second sub-field: whenever the first sub-field of the base layer-ID field fulfills a predetermined criterion, an extension layer-ID field is provided, and if the first sub-field of the base layer-ID field does not fulfill the predetermined criterion, the extension layer-ID field is omitted.
    Type: Application
    Filed: October 28, 2020
    Publication date: February 11, 2021
    Inventors: Karsten SUEHRING, Thomas SCHIERL, Detlev MARPE, Robert SKUPIN, Yago SANCHEZ DE LA FUENTE, Gerhard TECH
  • 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