专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US10382768B2 Method and apparatus for transform coefficient coding of non-square blocks 有权
公开(公告)号：US10382768B2
公开(公告)日：2019-08-13
申请号：US15737406
申请日：2016-06-23
申请人： MediaTek Singapore Pte. Ltd.
发明人： Han Huang , Jicheng An , Kai Zhang
IPC分类号： H04N19/18 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/129
摘要： A method and apparatus for transform coefficient coding of image and video data for a video encoder or decoder are disclosed. The method determines a CG (coding group) size adaptively based on the current TU. The current TU is divided into one or more current CGs (coding groups) according to the CG size. Bins associated with the coefficients of the current TU are then encoded or decoded according to a selected CG scan path through the current TU and one or more coefficient scan paths within each CG. If TU width is larger or smaller than TU height for the current TU, then CG width is selected to be larger or smaller than CG height accordingly. According to another method, all bypass-coded bins associated with coefficients in the current TU are grouped to improve the parsing throughput rate.

2. 发明授权

US10412406B2 Method and apparatus for deriving temporal motion vector prediction 有权
公开(公告)号：US10412406B2
公开(公告)日：2019-09-10
申请号：US15564206
申请日：2016-04-13
申请人： MediaTek Singapore Pte. Ltd. , Kai Zhang , Jicheng An
发明人： Kai Zhang , Jicheng An
IPC分类号： H04N19/30 , H04N19/31 , H04N19/52 , H04N19/70 , H04N19/503 , H04N19/176
摘要： A method and apparatus for encoding or decoding a motion vector (MV) of a current block of a current picture using advanced temporal motion vector prediction are disclosed. At least two collocated pictures are selected from a set of reference pictures of the current picture. One or more TMVPs are derived based on reference motion vectors (MVs) associated with collocated reference blocks of the collocated pictures. A motion vector prediction candidate set including one or more TMVPs is then determined. The current block is encoded or decoding using the motion vector prediction candidate set. The reference motion vectors (MVs) are scaled before the reference motion vectors (MVs) are used to derive the TMVPs.

3. 发明授权

US10334281B2 Method of conditional binary tree block partitioning structure for video and image coding 有权
公开(公告)号：US10334281B2
公开(公告)日：2019-06-25
申请号：US15742420
申请日：2016-07-07
申请人： MediaTek Singapore Pte. Ltd.
发明人： Kai Zhang , Jicheng An
IPC分类号： H04N19/96 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/162
摘要： A method and apparatus of block partition for video encoding or decoding for a video encoder or a video decoder respectively are disclosed. Partitioning tree structure corresponding to a conditional partitioning process is determined for partitioning the current block of video data into one or more final sub-blocks. The conditional partitioning process comprises a conditional binary partitioning process that uses at least a first constraint if a given block of the partitioning tree structure is partitioned into above and below blocks, or a second constraint if the given block of the partitioning tree structure is partitioned into left and right blocks. The below block is disallowed to be split into a lower-left and a lower-right block according to the first constraint, and the right block is disallowed to be split into an upper-right block and a lower-right block according to the second constraint.

4. 发明授权

US10271048B2 Method of background residual prediction for video coding 有权
公开(公告)号：US10271048B2
公开(公告)日：2019-04-23
申请号：US15666020
申请日：2017-08-01
申请人： MEDIATEK SINGAPORE PTE. LTD.
发明人： Xianguo Zhang , Kai Zhang , Jicheng An
IPC分类号： H04N19/17 , H04N19/46 , H04N19/70 , H04N19/103 , H04N19/105 , H04N19/119 , H04N19/147 , H04N19/176 , H04N19/553
摘要： A method and apparatus for video encoding or decoding utilizing adaptive background residual prediction is disclosed. The present invention adaptively applies background residual prediction to a current block based on a selection decision. The coding block is split into one or more coding sub-blocks. A reference sub-block in a reference picture is located for a current coding sub-block of the current coding block according to a motion vector associated with the current coding block. A background reference sub-block in a background picture is located for the reference sub-block, where the background reference sub-block is at a first co-located location as the reference sub-block. The method then selects a first predictor or a second predictor to encode or decode the current sub-block based on a selection decision. The first predictor corresponds to the reference sub-block, and the second predictor is derived according to the reference sub-block and the background picture.

5. 发明授权

US10257536B2 Method of temporal derived bi-directional motion vector for motion vector prediciton 有权
公开(公告)号：US10257536B2
公开(公告)日：2019-04-09
申请号：US15323809
申请日：2015-07-15
申请人： MediaTek Singapore Pte. Ltd.
发明人： Han Huang , Jicheng An , Kai Zhang , Xianguo Zhang
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/577 , H04N19/52 , H04N19/517 , H04N19/70
摘要： A method and apparatus of deriving a temporal derived motion vector in a second direction based on a given motion vector in a first direction for motion vector prediction are disclosed. According to the present invention, a given motion vector for a current block is determined, where the given motion vector points from the current block in a first direction. A reference motion vector associated with a first reference block in a first reference frame is identified. Then, based on the reference motion vector and the given motion vector, a temporal derived motion vector is derived. The temporal derived motion vector points from the current block to a second reference block in a second reference frame in a second direction different from the first direction. The temporal derived motion vector is then used as one predictor for encoding or decoding of the motion vector of the current block.

6. 发明授权

US10148981B2 Methods of palette coding with inter-prediction in video coding 有权
公开(公告)号：US10148981B2
公开(公告)日：2018-12-04
申请号：US15556389
申请日：2016-03-18
申请人： MediaTek Singapore Pte. Ltd.
发明人： Weijia Zhu , Kai Zhang , Xianguo Zhang
IPC分类号： H04N19/597 , H04N19/503 , H04N19/593 , H04N19/105 , H04N19/176 , H04N19/463 , H04N19/139 , H04N19/159 , H04N19/577 , H04N19/147
摘要： Method and apparatus for video coding using palette coding modes including a copy inter mode are disclosed. When the copy inter mode is selected, one or more consecutive current samples or indices of the current block are predicted by one or more consecutive reference samples or indices of a reference block at corresponding locations. Motion vector (MV) information for locating the reference block can be signalled in a bitstream for the current block. The motion vector information may be related to MV for the reference block corresponding to an Inter-prediction coding unit (CU) or a block vector (BV) for an Intra Block Copy (IntraBC) coded block. The location of the reference block can be determined implicitly without position information of the reference block signalled in a bitstream for the current block.

7. 发明授权

US09756336B2 Method of background residual prediction for video coding 有权
公开(公告)号：US09756336B2
公开(公告)日：2017-09-05
申请号：US14548304
申请日：2014-11-20
申请人： MEDIATEK Singapore Pte. Ltd.
发明人： Xianguo Zhang , Kai Zhang , Jicheng An
IPC分类号： H04N7/12 , H04N19/105 , H04N19/147 , H04N19/17 , H04N19/70 , H04N19/119
CPC分类号： H04N19/105 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/553 , H04N19/70
摘要： A method and apparatus for video encoding or decoding utilizing adaptive background residual prediction is disclosed. The present invention adaptively applies background residual prediction to a current block based on a selection decision. The coding block is split into one or more coding sub-blocks. A reference sub-block in a reference picture is located for a current coding sub-block of the current coding block according to a motion vector associated with the current coding block. A background reference sub-block in a background picture is located for the reference sub-block, where the background reference sub-block is at a first co-located location as the reference sub-block. The method then selects a first predictor or a second predictor to encode or decode the current sub-block based on a selection decision. The first predictor corresponds to the reference sub-block, and the second predictor is derived according to the reference sub-block and the background picture.

8. 发明申请

US20160150242A1 Method of Background Residual Prediction for Video Coding 有权
标题翻译：视频编码的背景残差预测方法
公开(公告)号：US20160150242A1
公开(公告)日：2016-05-26
申请号：US14548304
申请日：2014-11-20
申请人： MEDIATEK Singapore Pte. Ltd.
发明人： Xianguo Zhang , Kai Zhang , Jicheng An
IPC分类号： H04N19/50 , H04N19/44 , H04N19/517 , H04N19/176
CPC分类号： H04N19/105 , H04N19/103 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/553 , H04N19/70
摘要： A method and apparatus for video encoding or decoding utilizing adaptive background residual prediction is disclosed. The present invention adaptively applies background residual prediction to a current block based on a selection decision. The coding block is split into one or more coding sub-blocks. A reference sub-block in a reference picture is located for a current coding sub-block of the current coding block according to a motion vector associated with the current coding block. A background reference sub-block in a background picture is located for the reference sub-block, where the background reference sub-block is at a first co-located location as the reference sub-block. The method then selects a first predictor or a second predictor to encode or decode the current sub-block based on a selection decision. The first predictor corresponds to the reference sub-block, and the second predictor is derived according to the reference sub-block and the background picture.
摘要翻译：公开了一种使用自适应背景残差预测的视频编码或解码方法和装置。本发明基于选择决定自适应地对当前块应用背景残差预测。编码块被分成一个或多个编码子块。根据与当前编码块相关联的运动矢量，对当前编码块的当前编码子块定位参考图像中的参考子块。背景图像中的背景参考子块被定位用于参考子块，其中背景参考子块位于作为参考子块的第一同位置位置。该方法然后基于选择决定选择第一预测器或第二预测器来对当前子块进行编码或解码。第一预测器对应于参考子块，并且根据参考子块和背景图像导出第二预测器。

9. 发明申请

US20150022633A1 METHOD OF FAST ENCODER DECISION IN 3D VIDEO CODING 有权
标题翻译： 3D视频编码中快速编码器决策的方法
公开(公告)号：US20150022633A1
公开(公告)日：2015-01-22
申请号：US14329726
申请日：2014-07-11
申请人： MEDIATEK Singapore Pte. Ltd.
发明人： Na Zhang , Jicheng An , Jian-Liang Lin , Yi-Wen Chen , Kai Zhang
IPC分类号： H04N13/00 , H04N19/30 , H04N19/61 , H04N19/136 , H04N19/597
CPC分类号： H04N13/161 , H04N13/194 , H04N19/103 , H04N19/176 , H04N19/196 , H04N19/597
摘要： Multi-view video encoding using early Merge mode decision and/or early CU split termination is disclosed. The present invention encodes a current coding block using the Merge/Skip mode without evaluating coding performance for at least one of Inter modes and Intra modes if the coding conditions associated with the current coding block and a neighboring block set of the current coding block are asserted. The coding conditions may correspond to whether the coding performance of the Skip mode is better than the coding performance of 2N×2N Merge mode for the current coding block and whether all blocks in the neighboring block set select the Merge mode or the Skip mode. Similarly, the process of splitting the current coding block into smaller coding blocks can be terminated without evaluating coding performance associated with the smaller coding blocks from splitting the current coding block if some coding conditions are asserted.
摘要翻译：公开了使用早期合并模式决定和/或早期CU分割终止的多视图视频编码。如果与当前编码块相关联的编码条件和当前编码块的相邻块集合被断言，本发明使用合并/跳过模式来编码当前编码块而不评估至少一个Inter模式和Intra模式的编码性能。编码条件可以对应于跳过模式的编码性能是否优于当前编码块的2N×2N合并模式的编码性能以及相邻块组中的所有块是否选择合并模式或跳过模式。类似地，如果确定了一些编码条件，则可以终止将当前编码块分割成较小编码块的处理，而不评估与较小编码块相关联的编码性能，以分割当前编码块。

10. 发明授权

US10582203B2 Method and apparatus for transform coefficient coding of non-square blocks 有权
公开(公告)号：US10582203B2
公开(公告)日：2020-03-03
申请号：US16171475
申请日：2018-10-26
申请人： MediaTek Singapore Pte. Ltd.
发明人： Han Huang , Jicheng An , Kai Zhang
IPC分类号： H04N19/18 , H04N19/176 , H04N19/70 , H04N19/119 , H04N19/129
摘要： A method and apparatus for transform coefficient coding of image and video data for a video encoder or decoder are disclosed. The method determines a CG (coding group) size adaptively based on the current TU. The current TU is divided into one or more current CGs (coding groups) according to the CG size. Bins associated with the coefficients of the current TU are then encoded or decoded according to a selected CG scan path through the current TU and one or more coefficient scan paths within each CG. If TU width is larger or smaller than TU height for the current TU, then CG width is selected to be larger or smaller than CG height accordingly. According to another method, all bypass-coded bins associated with coefficients in the current TU are grouped to improve the parsing throughput rate.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式