公开(公告)号：US20190246120A1

公开(公告)日：2019-08-08

申请号：US16385602

申请日：2019-04-16

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp MERKLE ,  Christian BARTNIK ,  Haricharan LAKSHMAN ,  Detlev MARPE ,  Karsten MUELLER ,  Thomas WIEGAND ,  Gerhard TECH

IPC: H04N19/176 ,  H04N19/61 ,  H04N19/126 ,  H04N19/82 ,  H04N19/157 ,  H04N19/96 ,  H04N19/593 ,  H04N19/597 ,  H04N19/196 ,  H04N19/46 ,  H04N19/119 ,  H04N19/70 ,  H04N19/105

Abstract: 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.

公开(公告)号：US20190028692A1

公开(公告)日：2019-01-24

申请号：US16137992

申请日：2018-09-21

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Thomas WIEGAND ,  Detlev MARPE ,  Karsten MUELLER ,  Philipp MERKLE ,  Gerhard TECH ,  Hunn RHEE ,  Heiko SCHWARZ

IPC: H04N13/161 ,  H04N19/176 ,  H04N19/61 ,  H04N19/159 ,  H04N19/196 ,  H04N19/597 ,  H04N19/139

Abstract: 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.

公开(公告)号：US20170332088A1

公开(公告)日：2017-11-16

申请号：US15663256

申请日：2017-07-28

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp MERKLE ,  Christian BARTNIK ,  Haricharan LAKSHMAN ,  Detlev MARPE ,  Karsten MUELLER ,  Thomas WIEGAND ,  Gerhard TECH

IPC: H04N19/23 ,  H04N19/82 ,  H04N19/70 ,  H04N19/597 ,  H04N19/593 ,  H04N19/46 ,  H04N19/103 ,  H04N19/196 ,  H04N19/176 ,  H04N19/157 ,  H04N19/44 ,  H04N19/119 ,  H04N19/105 ,  H04N19/96 ,  H04N19/14

CPC classification number: H04N19/176 ,  H04N19/103 ,  H04N19/105 ,  H04N19/119 ,  H04N19/14 ,  H04N19/157 ,  H04N19/196 ,  H04N19/23 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96

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.

公开(公告)号：US20170318299A1

公开(公告)日：2017-11-02

申请号：US15655329

申请日：2017-07-20

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp MERKLE ,  Christian BARTNIK ,  Haricharan LAKSHMAN ,  Detlev MARPE ,  Karsten MUELLER ,  Thomas WIEGAND ,  Gerhard TECH

IPC: H04N19/176 ,  H04N19/82 ,  H04N19/70 ,  H04N19/597 ,  H04N19/593 ,  H04N19/196 ,  H04N19/157 ,  H04N19/46 ,  H04N19/126 ,  H04N19/119 ,  H04N19/96 ,  H04N19/105 ,  H04N19/14

CPC classification number: H04N19/176 ,  H04N19/105 ,  H04N19/119 ,  H04N19/126 ,  H04N19/14 ,  H04N19/157 ,  H04N19/196 ,  H04N19/46 ,  H04N19/593 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/96

Abstract: 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.

公开(公告)号：US20150288959A1

公开(公告)日：2015-10-08

申请号：US14743094

申请日：2015-06-18

Applicant: GE Video Compression, LLC

Inventor： Thomas WIEGAND ,  Karsten MUELLER ,  Philipp MERKLE

IPC: H04N19/105 ,  H04N19/11 ,  H04N19/172 ,  H04N19/61 ,  H04N19/46 ,  H04N19/513 ,  H04N19/567 ,  H04N19/597 ,  H04N13/00 ,  H04N19/177

CPC classification number: H04N19/597 ,  H04N13/111 ,  H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/124 ,  H04N19/17 ,  H04N19/172 ,  H04N19/177 ,  H04N19/30 ,  H04N19/46 ,  H04N19/513 ,  H04N19/521 ,  H04N19/567 ,  H04N19/61 ,  H04N19/80 ,  H04N2013/0081

Abstract: Hybrid video decoder supporting intermediate view synthesis of an intermediate view video from a first- and a second-view video which are predictively coded into a multi-view data signal with frames of the second-view video being spatially subdivided into sub-regions and the multi-view data signal having a prediction mode is provided, having: an extractor configured to respectively extract, from the multi-view data signal, for sub-regions of the frames of the second-view video, a disparity vector and a prediction residual; a predictive reconstructor configured to reconstruct the sub-regions of the frames of the second-view video, by generating a prediction from a reconstructed version of a portion of frames of the first-view video using the disparity vectors and a prediction residual for the respective sub-regions; and an intermediate view synthesizer configured to reconstruct first portions of the intermediate view video.

Abstract translation: 混合视频解码器支持来自第一和第二视点视频的中间视图合成的中间视图合成，其被预测编码为多视图数据信号，其中第二视点视频的帧被空间细分为子区域，并且 提供具有预测模式的多视点数据信号，具有：提取器，被配置为分别从多视点数据信号提取第二视点视频的帧的子区域，视差矢量和预测残差 ; 预测重建器，被配置为通过使用所述视差矢量从所述第一视频视频的一部分帧的重构版本生成预测，以及针对所述视差矢量的预测残差来重构所述二维视频的帧的子区域 子区域 以及中间视图合成器，被配置为重建中间视图视频的第一部分。

公开(公告)号：US20250024039A1

公开(公告)日：2025-01-16

申请号：US18780006

申请日：2024-07-22

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp MERKLE ,  Detlev MARPE ,  Karsten MUELLER

IPC: H04N19/13 ,  H04N19/119 ,  H04N19/176 ,  H04N19/463 ,  H04N19/91

Abstract: Wedgelet-based coding for coding blocks of varying size is rendered more efficient by the usage of a variable length coded syntax element having a prefix and a suffix, wherein the size of the suffix is dependent on the prefix and the size of the current coding block. By this measure, it is feasible to efficiently adapt the length of the variable-length coded syntax element which controls the bi-partitioning of the current coding block to the actual needs, namely the size, of the current coding block, and the variability of the bi-partitioning by varying the wedglet separation line, respectively. The greater the current coding block is, the longer the variable-length coded syntax element may be. This length dependency may even be sufficiently effective in terms of coding efficiency so that the variable length coded syntax element may be coded without context-adaptive entropy coding, but directly or using fixed-equal-probability binary entropy coding.

公开(公告)号：US20240106997A1

公开(公告)日：2024-03-28

申请号：US18534932

申请日：2023-12-11

Applicant: GE Video Compression, LLC

Inventor： Thomas WIEGAND ,  Detlev MARPE ,  Karsten MUELLER ,  Philipp MERKLE ,  Gerhard TECH ,  Hunn RHEE ,  Heiko SCHWARZ

IPC: H04N13/161 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/597 ,  H04N19/61

CPC classification number: H04N13/161 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/197 ,  H04N19/597 ,  H04N19/61

Abstract: 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 parallelly encoding these views show similarities which may be exploited in order to further improve the coding rate.

公开(公告)号：US20210112244A1

公开(公告)日：2021-04-15

申请号：US17131333

申请日：2020-12-22

Applicant: GE Video Compression, LLC

Inventor： Philipp MERKLE ,  Christian BARTNIK ,  Haricharan LAKSHMAN ,  Detlev MARPE ,  Karsten MUELLER ,  Thomas WIEGAND ,  Gerhard TECH

IPC: H04N19/105 ,  H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96 ,  H04N19/593 ,  H04N19/124 ,  H04N19/157 ,  H04N19/174 ,  H04N19/44 ,  H04N19/82 ,  H04N19/167

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.

公开(公告)号：US20200267368A1

公开(公告)日：2020-08-20

申请号：US16868654

申请日：2020-05-07

Applicant: GE VIDEO COMPRESSION LLC

Inventor： Gerhard TECH ,  Karsten MUELLER ,  Thomas WIEGAND

IPC: H04N13/161 ,  H04N13/122 ,  G06T15/20 ,  H04N13/128 ,  H04N13/111

Abstract: 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 undistorted version of the first view to a distortion of the possible successor synthesis state of the first view relative to the undistorted version of the first view.

公开(公告)号：US20200252649A1

公开(公告)日：2020-08-06

申请号：US16855058

申请日：2020-04-22

Applicant: GE Video Compression, LLC

Inventor： Thomas WIEGAND ,  Karsten MUELLER ,  Philipp MERKLE

IPC: H04N19/597 ,  H04N19/80 ,  H04N19/30 ,  H04N19/124 ,  H04N19/567 ,  H04N19/177 ,  H04N19/172 ,  H04N19/105 ,  H04N19/513 ,  H04N19/17 ,  H04N19/109 ,  H04N19/11 ,  H04N19/61 ,  H04N19/46 ,  H04N13/111

Abstract: Hybrid video decoder supporting intermediate view synthesis of an intermediate view video from a first- and a second- view video which are predictively coded into a multi-view data signal with frames of the second-view video being spatially subdivided into sub-regions and the multi-view data signal having a prediction mode is provided, having: an extractor configured to respectively extract, from the multi-view data signal, for sub-regions of the frames of the second-view video, a disparity vector and a prediction residual; a predictive reconstructor configured to reconstruct the sub-regions of the frames of the second-view video, by generating a prediction from a reconstructed version of a portion of frames of the first-view video using the disparity vectors and a prediction residual for the respective sub-regions; and an intermediate view synthesizer configured to reconstruct first portions of the intermediate view video.