Patents by Inventor Gerhard TECH
Gerhard TECH 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).
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Patent number: 11006136Abstract: 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: GrantFiled: February 20, 2020Date of Patent: May 11, 2021Assignee: GE Video Compression, LLCInventors: Karsten Suehring, Thomas Schierl, Detlev Marpe, Robert Skupin, Yago Sanchez de la Fuente, Gerhard Tech
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Patent number: 10986352Abstract: 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: GrantFiled: September 4, 2020Date of Patent: April 20, 2021Assignee: GE Video Compression, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Publication number: 20210112244Abstract: 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: ApplicationFiled: December 22, 2020Publication date: April 15, 2021Inventors: Philipp MERKLE, Christian BARTNIK, Haricharan LAKSHMAN, Detlev MARPE, Karsten MUELLER, Thomas WIEGAND, Gerhard TECH
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Publication number: 20210084313Abstract: 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: ApplicationFiled: September 29, 2020Publication date: March 18, 2021Inventors: Phan Hoang Tung NGUYEN, Gerhard TECH, Jonathan PFAFF, Michael SCHÄFER, Jennifer RASCH, Tobias HINZ, Heiko SCHWARZ, Detlev MARPE, Thomas WIEGAND
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Publication number: 20210058599Abstract: An apparatus for determining a measure for a distortion change of a first view synthesized from a second view, caused by a modification of a depth map of the second view from a first state to a second state, is configured—starting from a current synthesis state of the first view corresponding to a synthesis from the second view having the depth map modified to the second state in an already processed portion of the depth map and having the depth map unmodified at the first state in a yet to be processed portion of the depth map—to compute a possible successor synthesis state corresponding to a synthesis of the first view from the second view having the depth map modified to the second state in an already processed portion plus a currently processed portion and having the depth map unmodified at the first state in the yet to be processed portion without the currently processed portion; and to determine a distortion change of a distortion of the current synthesis state of the first view relative to an undistortType: ApplicationFiled: October 26, 2020Publication date: February 25, 2021Inventors: Gerhard TECH, Karsten MUELLER, Thomas WIEGAND
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Patent number: 10924748Abstract: 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: GrantFiled: September 4, 2020Date of Patent: February 16, 2021Assignee: GE Video Compression, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Publication number: 20210044814Abstract: 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: ApplicationFiled: October 28, 2020Publication date: February 11, 2021Inventors: Karsten SUEHRING, Thomas SCHIERL, Detlev MARPE, Robert SKUPIN, Yago SANCHEZ DE LA FUENTE, Gerhard TECH
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Patent number: 10911753Abstract: 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: GrantFiled: January 8, 2020Date of Patent: February 2, 2021Assignee: GE Video Compression, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Publication number: 20200404293Abstract: The way of predicting a current block by assigning constant partition values to the partitions of a bi-partitioning of a block is quite effective, especially in case of coding sample arrays such as depth/disparity maps where the content of these sample arrays is mostly composed of plateaus or simple connected regions of similar value separated from each other by steep edges. The transmission of such constant partition values would, however, still need a considerable amount of side information which should be avoided. This side information rate may be further reduced if mean values of values of neighboring samples associated or adjoining the respective partitions are used as predictors for the constant partition values.Type: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Inventors: Philipp MERKLE, Christian BARTNIK, Haricharan LAKSHMAN, Detlev MARPE, Karsten MUELLER, Thomas WIEGAND, Gerhard TECH
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Publication number: 20200404294Abstract: 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: ApplicationFiled: September 4, 2020Publication date: December 24, 2020Inventors: Philipp MERKLE, Christian BARTNIK, Haricharan LAKSHMAN, Detlev MARPE, Karsten MUELLER, Thomas WIEGAND, Gerhard TECH
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Publication number: 20200404315Abstract: In accordance with a first aspect, the intra prediction direction of a neighboring, intra-predicted block is used in order to predict the extension direction of the wedgelet separation line of a current block, thereby reducing the side information rate necessitated in order to convey the partitioning information. In accordance with a second aspect, the idea is that previously reconstructed samples, i.e. reconstructed values of blocks preceding the current block in accordance with the coding/decoding order allow for at least a prediction of a correct placement of a starting point of the wedgelet separation line, namely by placing the starting point of the wedgelet separation line at a position of a maximum change between consecutive ones of a sequence of reconstructed values of samples of a line of samples extending adjacent to the current block along a circumference thereof. Both aspects may be used individually or in combination.Type: ApplicationFiled: September 3, 2020Publication date: December 24, 2020Inventors: Philipp MERKLE, Christian BARTNIK, Haricharan LAKSHMAN, Detlev MARPE, Karsten MUELLER, Thomas WIEGAND, Gerhard TECH
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Patent number: 10869047Abstract: 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: GrantFiled: February 27, 2020Date of Patent: December 15, 2020Assignee: GE VIDEO COMPRESSION, LLCInventors: Karsten Suehring, Thomas Schierl, Detlev Marpe, Robert Skupin, Yago Sanchez De La Fuente, Gerhard Tech
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Patent number: 10827158Abstract: An apparatus for determining a measure for a distortion change of a first view synthesized from a second view, caused by a modification of a depth map of the second view from a first state to a second state, is configured—starting from a current synthesis state of the first view corresponding to a synthesis from the second view having the depth map modified to the second state in an already processed portion of the depth map and having the depth map unmodified at the first state in a yet to be processed portion of the depth map—to compute a possible successor synthesis state corresponding to a synthesis of the first view from the second view having the depth map modified to the second state in an already processed portion plus a currently processed portion and having the depth map unmodified at the first state in the yet to be processed portion without the currently processed portion; and to determine a distortion change of a distortion of the current synthesis state of the first view relative to an undistortType: GrantFiled: May 7, 2020Date of Patent: November 3, 2020Assignee: GE VIDEO COMPRESSION, LLCInventors: Gerhard Tech, Karsten Mueller, Thomas Wiegand
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Patent number: 10785497Abstract: In accordance with a first aspect, the intra prediction direction of a neighboring, intra-predicted block is used in order to predict the extension direction of the wedgelet separation line of a current block, thereby reducing the side information rate necessitated in order to convey the partitioning information. In accordance with a second aspect, the idea is that previously reconstructed samples, i.e. reconstructed values of blocks preceding the current block in accordance with the coding/decoding order allow for at least a prediction of a correct placement of a starting point of the wedgelet separation line, namely by placing the starting point of the wedgelet separation line at a position of a maximum change between consecutive ones of a sequence of reconstructed values of samples of a line of samples extending adjacent to the current block along a circumference thereof. Both aspects may be used individually or in combination.Type: GrantFiled: December 4, 2019Date of Patent: September 22, 2020Assignee: GE VIDEO COMPRESSION, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Patent number: 10771793Abstract: The way of predicting a current block by assigning constant partition values to the partitions of a bi-partitioning of a block is quite effective, especially in case of coding sample arrays such as depth/disparity maps where the content of these sample arrays is mostly composed of plateaus or simple connected regions of similar value separated from each other by steep edges. The transmission of such constant partition values would, however, still need a considerable amount of side information which should be avoided. This side information rate may be further reduced if mean values of values of neighboring samples associated or adjoining the respective partitions are used as predictors for the constant partition values.Type: GrantFiled: December 5, 2019Date of Patent: September 8, 2020Assignee: GE VIDEO COMPRESSION, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Patent number: 10771794Abstract: 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: GrantFiled: December 19, 2019Date of Patent: September 8, 2020Assignee: GE VIDEO COMPRESSION, LLCInventors: Philipp Merkle, Christian Bartnik, Haricharan Lakshman, Detlev Marpe, Karsten Mueller, Thomas Wiegand, Gerhard Tech
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Publication number: 20200267368Abstract: An apparatus for determining a measure for a distortion change of a first view synthesized from a second view, caused by a modification of a depth map of the second view from a first state to a second state, is configured—starting from a current synthesis state of the first view corresponding to a synthesis from the second view having the depth map modified to the second state in an already processed portion of the depth map and having the depth map unmodified at the first state in a yet to be processed portion of the depth map—to compute a possible successor synthesis state corresponding to a synthesis of the first view from the second view having the depth map modified to the second state in an already processed portion plus a currently processed portion and having the depth map unmodified at the first state in the yet to be processed portion without the currently processed portion; and to determine a distortion change of a distortion of the current synthesis state of the first view relative to an undistortType: ApplicationFiled: May 7, 2020Publication date: August 20, 2020Inventors: Gerhard TECH, Karsten MUELLER, Thomas WIEGAND
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Publication number: 20200252595Abstract: Embodiments are described which exploit a finding, according to which a higher compression rate or better rate/distortion ratio may be achieved by adopting or predicting second coding parameters used for encoding a second view of the multi-view signal from first coding parameters used in encoding a first view of the multi-view signal. In other words, the inventors found out that the redundancies between views of a multi-view signal are not restricted to the views themselves, such as the video information thereof, but that the coding parameters in parallely encoding these views show similarities which may be exploited in order to further improve the coding rate.Type: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Inventors: Thomas WIEGAND, Detlev MARPE, Karsten MUELLER, Philipp MERKLE, Gerhard TECH, Hunn RHEE, Heiko SCHWARZ
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Publication number: 20200195941Abstract: 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: ApplicationFiled: February 20, 2020Publication date: June 18, 2020Inventors: Karsten SUEHRING, Thomas SCHIERL, Detlev MARPE, Robert SKUPIN, Yago SANCHEZ DE LA FUENTE, Gerhard TECH
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Publication number: 20200195942Abstract: 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: ApplicationFiled: February 27, 2020Publication date: June 18, 2020Inventors: Karsten SUEHRING, Thomas SCHIERL, Detlev MARPE, Robert SKUPIN, Yago SANCHEZ DE LA FUENTE, Gerhard TECH