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1. 发明申请

WO2019201239A1 METHOD AND APPARATUS OF NEURAL NETWORK FOR VIDEO CODING 审中-公开
公开(公告)号：WO2019201239A1
公开(公告)日：2019-10-24
申请号：PCT/CN2019/082879
申请日：2019-04-16
申请人： MEDIATEK INC.
发明人： HSIAO, Yu-Ling , SU, Yu-Chi , JAN, Klopp , CHEN, Ching-Yeh , CHUANG, Tzu-Der , HSU, Chih-Wei , HUANG, Yu-Wen
IPC分类号： H04N19/52 , G06N3/04
摘要： A method and apparatus of video encoding video coding for a video encoder or decoder using Neural Network (NN) are disclosed. According to this method, the multiple frames in a video sequence comprises multiple segments, where each of the multiple segments comprises a set of frames. The NN (Neural Network) processing is applied to a target signal in one or more encoded frames of a target segment in the encoder side or to the target signal in one or more decoded frames of the target segment in the decoder side using one NN parameter set for the target segment. The target signal may correspond to reconstructed residual, reconstructed output, de-blocked output, SAO (sample adaptive offset) output, ALF (adaptive loop filter) output, or a combination thereof. In another embodiment, the NN processing is applied to a target signal only in one or more specific encoded or decoded frames.

2. 发明申请

WO2020035054A1 METHODS AND APPARATUSES OF VIDEO PROCESSING WITH BI-DIRECTION PREDICITION IN VIDEO CODING SYSTEMS 审中-公开
公开(公告)号：WO2020035054A1
公开(公告)日：2020-02-20
申请号：PCT/CN2019/101011
申请日：2019-08-16
申请人： MEDIATEK INC.
发明人： SU, Yu-Chi , CHEN, Ching-Yeh , HUANG, Yu-Wen , CHUANG, Tzu-Der
IPC分类号： H04N19/51 , H04N19/577
摘要： Exemplary video processing methods and apparatuses for encoding or decoding a current block by bi-directional prediction. Multiple weight sets are utilized for blending List 0 and List 1 predictors, and the selection among multiple weight sets may be implicitly determined based on video information. Each weight set is composed of multiple candidate weights, and one candidate weight is selected for the current block. A weight pair associated with the selected weight for the current block is used for weighted averaging List 0 and List 1 predictors of the current block to generate a final inter predictor. The video processing methods and apparatuses encode or decode the current block according to the final inter predictor of the current block.

3. 发明申请

WO2019223746A1 METHOD AND APPARATUS OF VIDEO CODING USING BI-DIRECTIONAL CU WEIGHT 审中-公开
公开(公告)号：WO2019223746A1
公开(公告)日：2019-11-28
申请号：PCT/CN2019/088069
申请日：2019-05-23
申请人： MEDIATEK INC.
发明人： SU, Yu-Chi , CHEN, Ching-Yeh , LIN, Zhi-Yi , CHUANG, Tzu-Der
IPC分类号： H04N19/105
摘要： A method and apparatus of encoding or decoding for a coding system, where bi-directional CU (coding unit) weighting (BCW) is enabled for the coding system to allow using multiple pairs of weights, are disclosed. According to this method, a Merge candidate list is generated for the current block, where current bi-directional CU weights for a bi-directional predictor of the current block associated with a target Merge candidate in the Merge candidate list are set to a pre-define pair of weights when the target Merge candidate corresponds to a selected Merge candidate. In another method, current bi-directional CU weights for a bi-directional predictor associated with a target Merge candidate in the Merge candidate list are inherited from the target Merge candidate when the target Merge candidate corresponds to a selected Merge candidate.

4. 发明申请

WO2020083108A1 METHOD AND APPARATUS FOR REDUCTION OF IN-LOOP FILTER BUFFER 审中-公开
公开(公告)号：WO2020083108A1
公开(公告)日：2020-04-30
申请号：PCT/CN2019/111895
申请日：2019-10-18
申请人： MEDIATEK INC.
发明人： CHEN, Ching-Yeh , CHUANG, Tzu-Der , SU, Yu-Chi , HSU, Chih-Wei , HUANG, Yu-Wen
IPC分类号： H04N19/70
摘要： Methods and apparatus for in-loop processing of reconstructed video are disclosed. According to one method, a virtual boundary is determined for to-be-processed pixels in the current picture, where the virtual boundary is aligned with block boundaries and at least one to-be-processed pixel on a first side of the virtual boundary requires one or more second pixels on a second side of the virtual boundary. According to the method, the in-loop processing is modified if a target to-be-processed pixel requires at least one second pixel from the second side of the virtual boundary and the modified in-loop processing eliminates the need for any second pixel on the second side of the virtual boundary. According to another method, the operations of block classification are changed when part of the required pixels in one 10x10 window used in classification are at the other side of virtual boundaries.

5. 发明申请

WO2019238008A1 METHOD AND APPARATUS OF BI-DIRECTIONAL OPTICAL FLOW FOR VIDEO CODING 审中-公开
公开(公告)号：WO2019238008A1
公开(公告)日：2019-12-19
申请号：PCT/CN2019/090560
申请日：2019-06-10
申请人： MEDIATEK INC.
发明人： SU, Yu-Chi , CHEN, Ching-Yeh , CHUANG, Tzu-Der , LAI, Chen-Yen
IPC分类号： H04N19/51
摘要： Method and apparatus of using Bi-directional optical flow (BIO) for a true bi-direction predicted block are disclosed. According to one method of the present invention, the gradients are limited to a predefined bit-depth in order to reduce the computational complexity. According to another method, the data range of gradient sum and/or the difference between L0 and L1 interpolated pixels are shifted by a predefined bit-depth. The pre-defined bit-depth can be implicitly determined or signalled in a bit stream at a sequence level, picture level or slice level. The pre-defined bit-depth can also be determined dependent on input bit-depth.

6. 发明申请

WO2019085892A1 METHOD AND APPARATUS FOR VIDEO CODING 审中-公开
公开(公告)号：WO2019085892A1
公开(公告)日：2019-05-09
申请号：PCT/CN2018/112650
申请日：2018-10-30
申请人： MEDIATEK INC.
发明人： SU, Yu-Chi , LAI, Chen-Yen , CHEN, Ching-Yeh
IPC分类号： H04N19/127 , H04N19/523
CPC分类号： H04N19/513 , H04N19/119 , H04N19/176 , H04N19/44 , H04N19/523 , H04N19/53 , H04N19/543 , H04N19/557 , H04N19/577
摘要： Aspects of the disclosure provide a method and an apparatus for video coding. A processing circuitry determines a process unit size for a decoder-side motion vector refinement (DMVR). Then, the processing circuitry enables an application of the DMVR on a current block when a size of the current block is smaller than or equal to the process unit size; and disables the application of the DMVR on the current block when the size of the current block is larger than the process unit size. In an example, the application of the DMVR refines the motion vectors with or without a template block.

7. 发明申请

WO2018068744A1 METHOD AND APPARATUS OF SMOOTHING FILTER FOR RINGING ARTEFACT REMOVAL 审中-公开
标题翻译：平滑滤波器去除毛刺的方法和设备
公开(公告)号：WO2018068744A1
公开(公告)日：2018-04-19
申请号：PCT/CN2017/105845
申请日：2017-10-12
申请人： MEDIATEK INC.
发明人： SU, Yu-Chi , CHUANG, Tzu-Der , CHEN, Ching-Yeh , HSU, Chih-Wei , HUANG, Yu-Wen
IPC分类号： H04N19/80
摘要： Methods and apparatus for video coding using ringing smoothing filter (RSF) are disclosed. According to one method, ringing smoothing filter (RSF) is applied to the reconstructed residuals to form smoothed reconstructed residuals or applied to an in-loop-filtered reconstructed block to form a smoothed-filtered reconstructed block for the current block, where the RSF corresponds to an edge-preserving filter. The ringing smoothing filter (RSF) may correspond to a bilateral filter. According to another method, adaptive RSF is derived based on information comprising Intra prediction mode or Inter prediction mode. In yet another method, whether to apply ringing smoothing filter (RSF) to a current block in the current image is determined based on one or more control flags. If the control flag (s) indicates the RSF being on for the current block, the RSF is applied to the current block.
摘要翻译：公开了使用振铃平滑滤波器（RSF）进行视频编码的方法和装置。根据一种方法，振铃平滑滤波器（RSF）被应用于重构的残差以形成平滑的重构残差或应用于经环路滤波的重构块以形成用于当前块的经平滑滤波的重建块，其中RSF对应于到边缘保留滤波器。振铃平滑滤波器（RSF）可以对应于双边滤波器。根据另一方法，基于包括帧内预测模式或帧间预测模式的信息来导出自适应RSF。在又一种方法中，基于一个或多个控制标志确定是否将振铃平滑滤波器（RSF）应用于当前图像中的当前块。如果控制标志指示当前块的RSF开启，则将RSF应用于当前块。

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