Mediatek Corporation

Hfi Innovation Inc.

Taiwan Semiconductor Manufacturing Comp. Ltd.

Industrial Technology Research Institute

United Microelectronics Corp.

Mediatek Singapore Pte. Ltd.

Tsrc Corporation

Vishay General Semiconductor, Inc.

Other

Huawei Technologies Co., Limited

Lite-on Semiconductor Corporation

Tsinghua University

Anpec Electronics Corporation

Taiwan Hopax Chemicals Mfg. Co., Ltd.

Sinopower Semiconductor, Inc.

Chih-Wei Hsu

Ching-Yeh Chen

Tzu-Der Chuang

Yu-Wen Huang

Chun-Chia Chen

Man-Shu Chiang

Chia-Ming Tsai

Chen-Yen Lai

Zhi-Yi Lin

Yu-Ling Hsiao

Shaw-Min Lei

Lulin Chen

Olena Chubach

Shih-Ta Hsiang

Chih-Ming Fu

Shan Liu

Wen-Chun Huang

Chia-Ping Chiang

Ru-Gun Liu

Han Huang

Chia-Yang Tsai

Tsai-Sheng Gau

Florin Udrea

Jong-I Mou

Ming-Hui Chih

Ya-Ting Chang

Wen-Li Cheng

Ping-Chieh Wu

Jicheng An

Hua-Tai Lin

Cheng-Cheng Kuo

Yu-Chi Su

Zhenzhong Chen

Yu-Cheng Lin

Kuei-Shun Chen

Xun Guo

Yuan-Hsiang Lung

Yuh-Fwu Chou

Yih-Yin Lin

Chih-Chung Wang

Wen-Fang Lee

Tsong-Hua Ou

Jo Fei Wang

Ying-Chou Cheng

Yen-Di Tsen

Ming-Jinn Tsai

Hsi-Yu Kuo

Yu-Lin Chu

Man-Yin Lo

Shin-Rung Lu

Andy Tsen

Boren Luo

Ming-Tsung Lee

Jian-Cheng Chen

Ku-Yen Kang

Cheng-Hua Yang

Qian Huang

Xiaozhong Xu

Chin-Hsiang Lin

Hsin-Chang Lee

Jian-Liang Lin

Yu Wang

Yi-Wen Chen

Chi-Cheng Ju

Hanyang Wang

Yu-Chen Sun

Kuei Shun Chen

Kun-Bin Lee

Chun-Hsien Lin

Chia-Hung Chen

Chih-Wei Chen

Ming-Jer Kao

Wang-Lin Lai

Wei-Chieh Lin

Tsung-Tien Kuo

Yu-Jen Cheng

Chih-Hui Kuo

Jen-Rong Liu

Jeng-Hua Wei

Mohammed Golam Sarwer

Chien-Ming Lee

Tsun-Rung Hsu

Chih-Shiang Chou

Wen-Hao Liu

Haw-Wei Shu

Yen Chuo

Shau-Yin Tseng

Po-Han Huang

Kuang-Huan Hsu

Yuan-Hao Lan

Ming-Yu Fan

Cheng-Lung Tsai

Tsung-Ming Pan

Chau-Hui Wang

Jing-Yi Chen

Hsingyu Lung

Jin-Ning Sung

Chung-Ping Chung

Ching-Che Tsai

Tzu-Chun Lo

Method and apparatus for template matching with a determined area are disclosed. According to this method, a current template comprising current neighbouring pixels on an above side of the current block, on a left side of the current block, or a combination thereof for a current block is received. An area in a reference picture is then determined, where the reference picture corresponds to a previously coded picture. A matching result between a restricted reference template of a reference block and the current template is then determined, wherein the restricted reference template is generating by using only neighbouring reference pixels of a reference template inside the determined area, the reference template has a same shape as the current template, and a location of the reference template is determined according to a target motion vector (MV) from the current template.

Method and apparatus for hardware-friendly template matching in video coding system

Encoding methods and apparatuses comprise determining parameters of a specific process for a current slice, signaling in one or more Adaptive Parameter Sets (APSs), performing the specific process using the parameters, signaling an APS ID of each signaled APS in a slice header, and encoding the current slice. Each APS is classified into a category according to a type of data carried by the APS. The APS ID of each signaled APS is counted in a category associated with the specific process and is independent of other categories. Decoding methods and apparatuses comprise parsing an APS ID of each referenced APS from a slice header of a current slice for a specific process, determining parameters from each referenced APS according to the parsed APS ID and a category associated with the specific process, performing the specific process on the current slice and decoding the current slice.

Methods and apparatuses of syntax signaling and referencing constraint in video coding system

A method and apparatus for predictive coding. According to the method, combined prediction members are determined, where each of the combined prediction member includes a weighted sum of a first prediction candidate and a second prediction candidate using a target weighting selected from a weighting set. Boundary matching costs associated with the combined prediction members are determined, where each of the boundary matching costs is determined, for the combined prediction member with the target weighting, by using predicted samples of the current block based on the combined prediction member with the target weighting and neighbouring reconstructed samples of the current block. The current block is then encoded or decoded using a final combined prediction decided based on at least one of the boundary matching costs.

Method and apparatus for multiple hypothesis prediction in video coding system

A method and apparatus for video coding. According to this method, a set of candidates associated with coding modes or coding parameters is determined. Boundary matching costs associated with the set of candidates are determined, where each of the boundary matching costs is determined, for one target candidate of the set of candidates, by using reconstructed or predicted samples of the current block and neighbouring reconstructed or predicted samples of the current block. The reconstructed or predicted samples of the current block are determined according to the one target candidate. The set of candidates are reordered according to the boundary matching costs. The current block is then encoded or decoded using a final candidate selected from the set of candidates based on reordered candidates of the set of candidates.

Method and apparatus for coding mode selection in video coding system

Methods and apparatus for video coding system utilizing Rate-Distortion Optimized Quantization (RDOQ) are provided. According to one method, a rate for a level belonging to a level set of a current quantized transform coefficient is estimated for a current coefficient group (CG) based on neighboring quantized coefficients of the current quantized transform coefficient and the current CG. A best level for the current quantized transform coefficient is selected from the level set for a best RD-cost. In another method, a TB is partitioned into M regions and M best regions are derived for the M regions according to RDOQ. At least two alternative region RD-costs are generated for each of the M best regions based on a relative position between each of the M best regions and a last significant region in the TB. TB RD-cost for the TB is selected according a last non-zero best region position.

Method and apparatus for hardware-friendly rate-distortion optimized quantization in video coding

A video processing method for a video encoder or decoder comprises receiving input data of a current block, determining an intra prediction mode and reference samples according to the intra prediction mode, determining an intra reference sample filter from a Gaussian interpolation filter and an alternative interpolation filter for the current block, applying the intra reference sample filter to the reference samples to generate an intra predictor for the current block, and encoding or decoding the current block based on the intra predictor. A determination between the Gaussian and alternative interpolation filters is depending on a comparison of a mode difference value calculated by the intra prediction mode with a size-dependent threshold. The size-dependent threshold is set to be equal to 24 for blocks with block size smaller than or equal to 32 samples according to an embodiment. The alternative interpolation filter may be a DCT-IF interpolation filter.

Method and apparatus of encoding or decoding with mode dependent intra smoothing filter in intra prediction

A method and apparatus for block partition are disclosed. If a cross-colour component prediction mode is allowed, the luma block and the chroma block are partitioned into one or more luma leaf blocks and chroma leaf blocks. If a cross-colour component prediction mode is allowed, whether to enable an LM (Linear Model) mode for a target chroma leaf block is determined based on a first split type applied to an ancestor chroma node of the target chroma leaf block and a second split type applied to a corresponding ancestor luma node. According to another method, after the luma block and the chroma block are partitioned using different partition tress, determine whether one or more exception conditions to allow an LM for a target chroma leaf block are satisfied when the chroma partition tree uses a different split type, a different partition direction, or both from the luma partition tree.

Method and apparatus of luma-chroma separated coding tree coding with constraints

In an integrated circuit (IC) fabrication process, devices or sub-circuits are fabricated in respective first and second electrical isolation regions. A back-to-back (B2B) diodes sub-circuit is fabricated in a third electrical isolation region, which includes a first diode whose cathode is connected with a first terminal and whose anode is connected with a second terminal, and a second diode whose anode is connected with the first terminal and whose cathode is connected with the second terminal. Electrostatic discharge protection is provided to the first and second electrical isolation regions by electrically connecting the first terminal of the B2B diodes sub-circuit with a VSS power supply terminal of the first device or sub-circuit and the second terminal of the B2B diodes sub-circuit with a VSS power supply terminal of the second device or sub-circuit. Thereafter, the first device or sub-circuit and the second device or sub-circuit are electrically connected.

Electrostatic discharge protection for integrated circuit during back end-of-line processing

A video encoder receives raw pixel data to be encoded as a current block of a current picture of a video into a bitstream. The video encoder identifies multiple candidate bi-prediction positions for the current block, including a center position, a first set of offset positions, and a second set of offset positions. The first set of offset positions and the second set of offset positions interleave each other. The encoder computes distortion values for each of the candidate bi-prediction positions based on several possible weighting parameter values. The distortion values for the center position are based on each of the several possible weighting parameter values. The distortion values for the first set of offset positions are based on a first subset of the possible weighting parameter values. The distortion values for the second set of offset positions are based on a second subset of the possible weighting parameter values.

Shared architecture for multiple video coding modes

Method and apparatus of Inter prediction for video coding are disclosed. When a sub-block motion compensation coding tool is selected for the current block, the method generates sub-block MVs (motion vectors) associated with multiple sub-blocks, which are included or contained in the current block, according to the sub-block motion compensation coding tool, constrains the sub-block MVs within a range to form constrained sub-block MVs, and applies motion compensation to the current block using the constrained sub-block MVs or applies motion compensation to the current block using one sub-block MV within the range around the primary MV in a second list if a corresponding sub-block MV in a first list is outside the range. In another method, motion compensation is applied to the current block only using reference pixels of reference sub-blocks within a primary reference block.

Method and apparatus of motion vector constraint for video coding

The techniques described herein relate to methods, apparatus, and computer readable media configured to receive compressed video data, wherein the compressed video data is related to a set of frames. A decoder-side predictor refinement technique is used to calculate a new motion vector for a current frame from the set of frames, wherein the new motion vector estimates motion for the current frame based on one or more reference frames. An existing motion vector associated with a different frame from a motion vector buffer is retrieved. The new motion vector is calculated based on the existing motion vector using a decoder-side motion vector prediction technique, such that the existing motion vector is in the motion vector buffer after calculating the new motion vector.

Pattern-based motion vector derivation for video coding

Video encoding or decoding methods and apparatuses include receiving input data associated with a current block in a current picture, determining a preload region in a reference picture shared by two or more coding configurations of affine prediction or motion compensation or by two or more affine refinement iterations, loading reference samples in the preload region, generating predictors for the current block, and encoding or decoding the current block according to the predictors. The predictors associated with the affine refinement iterations or coding configurations are generated based on some of the reference samples in the preload region.

Methods and apparatuses of sharing preload region for affine prediction or motion compensation

A method for video encoding and decoding using Low-Frequency Non-Separable Transform (LFNST) mode and apparatus thereof are disclosed. The input data correspond to primary transformed data at the encoder and the input data correspond to coded data of the current CU at the decoder. A CU is partitioned into one or more transform blocks (TBs). An LFNST syntax is determined at an encoder side or at a decoder side if one or more conditions are satisfied. The LFNST syntax indicates whether the LFNST mode is applied to the current CU and/or which LFNST kernel is applied when the LFNST mode is applied. The conditions comprise the CBF indications for the target TBs being false. The current CU is encoded or decoded according to the LFNST mode as indicated by the LFNST syntax.

Methods and apparatus for secondary transform signaling in video coding

Various schemes pertaining to video coding parallelization techniques are described. An apparatus receives video data. The apparatus subsequently calculates a plurality of figures of merits (FOMs), each of the FOM representing how well a particular coding tool may perform in encoding the video data. The apparatus further determines a coding tool that may be suitable for encoding the video data by comparing the FOMs. In determining the coding tool, the apparatus utilizes time-interleaving techniques to parallelly process the video data. The video data may include an array of coding blocks, and the apparatus may receive the video data using a snake-like processing order scanning through the array of coding blocks.

Video encoding parallelization with time-interleaving cache access

A method and apparatus of prediction for video coding are disclosed. According to one method, a luma Intra prediction mode is determined for a corresponding luma block collocated with the current chroma block, where a predefined mode is assigned to the luma Intra prediction mode when the corresponding luma block collocated with the current chroma block satisfies one or more conditions. A chroma Intra prediction mode is determined for the current chroma block according to the luma Intra prediction mode. The current chroma block is then encoded or decoded according to the chroma Intra prediction mode. According to another method, a predefined mode is assigned to Intra prediction mode for the current block when the current block satisfies one or more conditions. The current block is then encoded or decoded according to the Intra prediction mode.

Method and apparatus of chroma direct mode generation for video coding

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Hsinchu, Taiwan

Chih-Wei Hsu