公开(公告)号：US20170366821A1

公开(公告)日：2017-12-21

申请号：US15695433

申请日：2017-09-05

Applicant: GE Video Compression, LLC

Inventor： Heiko SCHWARZ ,  Heiner KIRCHHOFFER ,  Philipp HELLE ,  Simon OUDIN ,  Jan STEGEMANN ,  Benjamin BROSS ,  Detlev MARPE ,  Thomas WIEGAND

IPC: H04N19/52 ,  H04N19/184 ,  H04N19/172 ,  H04N19/176 ,  H04N19/70 ,  H04N19/50

CPC classification number: H04N19/52 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/70

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.

公开(公告)号：US20170359594A1

公开(公告)日：2017-12-14

申请号：US15687920

申请日：2017-08-28

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Sebastian BOSSE ,  Heiko SCHWARZ ,  Thomas WIEGAND ,  Tobias HINZ

IPC: H04N19/52 ,  H04N19/597 ,  H04N19/553 ,  H04N19/463

CPC classification number: H04N19/52 ,  H04N19/463 ,  H04N19/553 ,  H04N19/597

Abstract: A proposed intermediate way of handling the renderable portion of the first view results in more efficient coding. Instead of omitting the coding of the renderable portion completely, even more efficient coding of multi-view signals entails merely suppressing the coding of the residual signal within the renderable portion, whereas the prediction parameter coding still takes place from the non-renderable portion of the multi-view signal across the renderable portion so that prediction parameters for the renderable portion may be exploited for predicting parameters for the non-renderable portion. The additional coding rate for transmitting the prediction parameters for the renderable portion may be kept low as this merely aims at forming a continuation of the parameter history across the renderable portion to serve as a basis for prediction parameters of other portions of the multi-view signal. Expressed differently, the prediction parameters for the renderable portion need not perfectly predict the texture within the renderable portion of the first view to keep the residual signal within the renderable portion low.

公开(公告)号：US20170134761A1

公开(公告)日：2017-05-11

申请号：US15413852

申请日：2017-01-24

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Heiner KIRCHHOFFER ,  Martin WINKEN ,  Philipp HELLE ,  Detlev MARPE ,  Heiko SCHWARZ ,  Thomas WIEGAND

IPC: H04N19/96 ,  H04N19/17 ,  H04N19/52 ,  H04N19/169 ,  H04N19/46

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.

公开(公告)号：US20170078641A1

公开(公告)日：2017-03-16

申请号：US15363378

申请日：2016-11-29

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Gerhard TECH ,  Karsten MUELLER ,  Thomas WIEGAND

IPC: H04N13/00 ,  G06T15/20

CPC classification number: H04N13/161 ,  G06T15/205 ,  H04N13/111 ,  H04N13/122 ,  H04N13/128

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.

Abstract translation: 一种用于确定由第二视图从第一状态到第二状态的深度图的修改引起的从第二视点合成的第一视图的失真变化的测量装置，从当前合成状态开始 所述第一视图对应于在所述深度图的已处理部分中具有修改为所述第二状态的所述深度图的第二视图的合成，并且在所述深度的未处理部分中在所述第一状态下未修改所述深度图 映射 - 从已经处理部分加上当前处理部分的深度图修改为第二状态的第二视图的第一视图的合成对应的可能的后继合成状态，并且在第一状态下未修改深度图 在尚未被处理的部分中，没有当前处理的部分; 并且确定第一视图的当前合成状态相对于第一视图的未失真版本的失真的失真变形，以相对于第一视图的未失真版本的第一视图的可能的后继合成状态的失真。

公开(公告)号：US20160381392A1

公开(公告)日：2016-12-29

申请号：US15257447

申请日：2016-09-06

Applicant: GE Video Compression, LLC

Inventor： Thomas WIEGAND ,  Karsten Mueller ,  Philipp Merkle

IPC: H04N19/597 ,  H04N19/11 ,  H04N19/105 ,  H04N19/124 ,  H04N19/80 ,  H04N19/30 ,  H04N19/109 ,  H04N19/513

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.

公开(公告)号：US20160309198A1

公开(公告)日：2016-10-20

申请号：US15196342

申请日：2016-06-29

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp HELLE ,  Detlev MARPE ,  Simon OUDIN ,  Thomas WIEGAND

IPC: H04N19/96 ,  H04N19/463 ,  H04N19/159 ,  H04N19/593 ,  H04N19/70 ,  H04N19/176 ,  H04N19/53 ,  H04N19/52

CPC classification number: H04N19/96 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/176 ,  H04N19/30 ,  H04N19/439 ,  H04N19/44 ,  H04N19/463 ,  H04N19/513 ,  H04N19/52 ,  H04N19/53 ,  H04N19/593 ,  H04N19/70

Abstract: A better compromise between encoding complexity and achievable rate distortion ratio, and/or to achieve a better rate distortion ratio is achieved by using multitree sub-divisioning not only in order to subdivide a continuous area, namely the sample array, into leaf regions, but using the intermediate regions also to share coding parameters among the corresponding collocated leaf blocks. By this measure, coding procedures performed in tiles—leaf regions—locally, may be associated with coding parameters individually without having to, however, explicitly transmit the whole coding parameters for each leaf region separately. Rather, similarities may effectively exploited by using the multitree subdivision.

公开(公告)号：US20150270850A1

公开(公告)日：2015-09-24

申请号：US14734407

申请日：2015-06-09

Applicant: GE Video Compression, LLC

Inventor： Detlev MARPE ,  Tung NGUYEN ,  Heiko SCHWARZ ,  Thomas WIEGAND

IPC: H03M7/40 ,  H03M7/46

CPC classification number: H03M7/00 ,  H03M7/40 ,  H03M7/4006 ,  H03M7/46

Abstract: Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

Abstract translation: 将各个语法元素的值范围分解成n个分区的序列，其中使用至少一个通过VLC编码和至少一个通过PIPE或熵编码分别对相应分区内的z分布进行编码，从而大大增加 压缩效率在中等编码开销，因为使用的编码方案可以更好地适应语法元素统计。 因此，语法元素被分解为具有i = 1的相应数量的源符号si。 。 。 n，根据关于各个语法元素的值范围被分割成哪个n个分区的哪一个，源符号的相应数量n，各个语法元素的值z落入，从而总和 相应数量的源符号si的值产生z，并且如果n> 1，对于所有i = 1。 。 。 n-1，si的值对应于第i个分区的范围。

公开(公告)号：US20250039404A1

公开(公告)日：2025-01-30

申请号：US18893395

申请日：2024-09-23

Applicant: GE Video Compression, LLC

Inventor： Martin WINKEN ,  Heiner KIRCHHOFFER ,  Heiko SCHWARZ ,  Detlev MARPE ,  Thomas WIEGAND

IPC: H04N19/159 ,  H04N19/103 ,  H04N19/119 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

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.

公开(公告)号：US20240413836A1

公开(公告)日：2024-12-12

申请号：US18742321

申请日：2024-06-13

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Detlev MARPE ,  Tung NGUYEN ,  Heiko SCHWARZ ,  Thomas WIEGAND

IPC: H03M7/00 ,  H03M7/40 ,  H03M7/46

Abstract: Decomposing a value range of the respective syntax elements into a sequence of n partitions with coding the components of z laying within the respective partitions separately with at least one by VLC coding and with at least one by PIPE or entropy coding is used to greatly increase the compression efficiency at a moderate coding overhead since the coding scheme used may be better adapted to the syntax element statistics. Accordingly, syntax elements are decomposed into a respective number n of source symbols si with i=1 . . . n, the respective number n of source symbols depending on as to which of a sequence of n partitions into which a value range of the respective syntax elements is sub-divided, a value z of the respective syntax elements falls into, so that a sum of values of the respective number of source symbols si yields z, and, if n>1, for all i=1 . . . n−1, the value of si corresponds to a range of the ith partition.

公开(公告)号：US20240330980A1

公开(公告)日：2024-10-03

申请号：US18631336

申请日：2024-04-10

Applicant: GE VIDEO COMPRESSION, LLC

Inventor： Philipp HELLE ,  Simon OUDIN ,  Martin WINKEN ,  Detlev MARPE ,  Thomas WIEGAND

IPC: G06Q30/0251 ,  G06F16/00 ,  G06Q10/00 ,  G06Q30/00 ,  G06Q30/02 ,  G06Q30/0601 ,  H04N19/105 ,  H04N19/119 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/61 ,  H04N19/96

CPC classification number: G06Q30/0251 ,  G06F16/00 ,  G06Q30/02 ,  G06Q30/0601 ,  H04N19/105 ,  H04N19/119 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/197 ,  H04N19/46 ,  H04N19/463 ,  H04N19/52 ,  H04N19/61 ,  H04N19/96 ,  G06Q10/00 ,  G06Q30/00

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.