Beijing Bytedance Network Technology Co., Ltd.

Bytedance Inc.

Boe Technology Group Co., Ltd.

Chengdu Boe Optoelectronics Technology Co., Ltd.

Lemon Inc.

Hfi Innovation Inc.

Hitachi, Ltd.

Baidu Online Network Technology (beijing) Co., Ltd.

Hefei Boe Optoelectronics Technology Co., Ltd.

Petrochina Company Limited

Stmicroelectronics (beijing) R&d Company Ltd.

Institute of Urban Safety and Environmental Science, Beijing Academy of Science and Technology

National Institutes for Food and Drug Control

Na Zhang

Kai Zhang

Li Feng Zhang

Hongbin Liu

Yue Wang

Jing Wang

Zhipin Deng

Jizheng Xu

Bin Zhang

Wei Li

Jian-Liang Lin

Yi-Wen Chen

Jicheng An

Yuwen He

Yang Wang

Li Wang

Yu Wang

Hiroki Ikeda

Li Zhang

Zhiyong Yang

Jie Xiang

Yang Liu

Zhiliang Jiang

Zhen Wang

Peng Li

Chao Wang

Zhenhua Zhang

Xi Wang

Chang Liu

Fei Chen

Kai Chen

Pan Zhao

Liwei Huang

Yu-Lin Chang

Xue Jiang

Yan Shi

Yu Du

Jianhua Guo

Zhengwei Zhu

Ding Ding

Wei Yao

Chao Fu

Xinglong Chen

Shihua Huang

Dexiong Song

Dianjie Hou

Haishui Han

Kaimin Wang

Jiazhong Wu

Lele Han

Zhihong Cui

Jianguo Xu

Ling Guo

Wenbo Yang

Shuzhen Yang

Youhui Liu

Xuemei Deng

Haijiao Li

Pengyao Zhou

Xiangxiang Wu

Yan Dou

Shuo Xiang

Mushui Shu

Baoqian Dai

Xiaohui Ji

Zhizhen Xu

Lan He

Jing Xiong

Xin Zhu

Zhonglin Lu

Shibing Yuan

The present application relates to harmonization between different video process mode. A method for processing video includes: determining, during a conversion between a first block in a video data and a bitstream representation of the first block, one or more coded modes of one or more second blocks; determining, based on the one or more coded modes of the one or more second blocks, a coded mode constraint of the first block; and performing, at least by applying the coded mode constraint of the first block, the conversion; wherein the one or more second blocks comprise at least one of an adjacent block, a non-adjacent block, and a reference block of the first block.

Harmonization between different video process mode

Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, during a conversion between a current video block of a video and a bitstream of the video, a cost based on at least two error metrics associated with two target blocks of the video, the cost indicting a degree of distortion between the two target blocks; refining coding data of the current video block based on the cost and the two target blocks; and performing the conversion based on the refined coding data. Compare with the conventional solution, the proposed method can advantageously improve the coding quality and the coding efficiency.

Method, device, and medium for video processing

A mechanism for processing video data is disclosed. An Unsymmetric Binary Tree (UBT) partition of a parent block is determined to create two sub-blocks with different dimensions. At least one of the sub-blocks comprises a side that is non-dyadic. A conversion is performed between a visual media data and a bitstream based on the sub-blocks.

Unsymmetric binary tree partitioning and non-dyadic blocks

A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines whether a block is dyadic or non-dyadic. The mechanism also enables a coding tool associated with inter prediction when the block is determined to be dyadic. The mechanism also disables the coding tool when the block is determined to be non-dyadic. A conversion between a visual media data and a bitstream is performed by applying inter prediction to the block.

Inter-prediction on non-dyadic blocks

The disclosure relates to the technical field of experimental detection. A portable experimental device for hazardous chemical and an experimental method thereof are provided. The technical scheme of the disclosure integrates hazardous chemicals information and data of a portable meeting-water air release test device data to construct a perfect hazardous chemicals database, and realizes rapid prediction and response to a fire scene through scene data collection, preprocessing and matching. The scene data of the portable device is received and processed, and is compared with the database information, the random forest model is used to train the chemical reaction prediction model, and the real-time detection data is predicted to obtain the second prediction result. and the test experimental results are shared to each mobile terminal in time to realize the rapid transmission and sharing of information.

Portable experimental device for hazardous chemical and experimental method thereof

Devices, systems and methods related to management of syntax flags with respect chroma formats in video processing are described. In one representative aspect, a video decoding method includes determining, for a conversion between a video and a coded representation of the video, whether a syntax element associated with an adaptive loop filtering (ALF) operation for a chroma component of the video is included in the coded representation based on a condition. The method also includes performing the conversion according to the determining.

Adaptive loop filtering for chroma components

Example implementations include methods, apparatuses and computer storage media for video processing. One example method comprises determining, during a conversion between a current video block of a video and a bitstream of the video, a motion candidate for the current video block; refining the motion candidate by performing a local search around the motion candidate based on a template matching cost rule; and performing the conversion based on the refined motion candidate, wherein a search order of the local search is related to a coding mode of the current video block.

Motion candidate derivation with search order and coding mode

Implementations of the present disclosure provide a solution for reordering merge candidates. In this solution, during a conversion between a current video block of a video and a bitstream of the video, a template matching cost associated with each of a plurality of candidates of motion information for the current video block is determined. The template matching cost is determined based on a first difference between a set of neighboring samples of the current video block and a set of reference samples corresponding to the set of neighboring samples, and a second difference between a set of reconstructed samples neighboring to the set of neighboring samples and the set of reference samples. The set of reference samples is determined based on motion information indicated by a respective candidate. Then, the plurality of candidates of motion information is reordered based on the template matching cost.

Coding of motion information

A cylinder porous cylinder, a gas flow control valve, and a mounting method for the gas flow control valve. The porous cylinder () includes a plurality of pipe bundles filled inside the pipe. A single flow passage is formed in each of the pipe bundles, such that a seepage passage is formed inside the pipe. The inner diameter, length and permeability of the pipe bundle are determined in advance based on a Reynolds number smaller than 2300. The porous cylinder () is capable of implementing a stable gas flow in a gas injection channel. The valve body () of the gas flow control valve () is provided therein with a plurality of tubular passages arranged in sequence along the horizontal direction of the valve body. The tubular passages include a pipe flow passage () and a plurality of seepage passages (). The porous cylinder () is mounted in each of the seepage passages (). A plurality of connection channels () are provided in the valve cap. One end of each of the connection channels () communicates with the interior of each of the tubular passages, and the other end of each of the connection channels () is provided respectively with a valve stem. The opening and closing of the plurality of tubular passages are controlled by the valve stem, thus regulating the output ratio of the injected gas. In addition, a mounting method for the gas flow control valve is further provided.

Gas flow control valve and mounting method for gas flow control valve

Devices, systems, and methods for lossless coding for visual media coding are described. An exemplary method for video processing includes determining, based on a current video block of a video satisfying a dimension constraint, that coding modes are enabled for representing the current video block in a bitstream representation, where the dimension constraint states that a same set of allowed dimensions for the current video block is disabled for the coding modes, and where, for an encoding operation, the coding modes represent the current video block in the bitstream representation without using a transform operation, or where, for a decoding operation, the coding modes are used to obtain the current video block without using an inverse transform operation; and performing a conversion between the current video block and the bitstream representation of the video based on one of the coding modes.

Block dimension settings of transform skip mode

A video processing method includes determining, for a conversion between a current video block of a video including multiple video blocks and a coded representation of the video, and from types of reference pictures used for the conversion, applicability of a coding tool to the current video block and performing the conversion based on the determining. The method may be performed by a video decoder or a video encoder or a video transcoder.

Restrictions of usage of tools according to reference picture types

A method of starting a permanent magnet synchronous motor (PMSM) with field oriented control (FOC) includes: opening a first control loop of the PMSM; setting a first direction for a first current component of the PMSM; aligning a rotor of the PMSM to the first direction; after aligning the rotor, setting a second direction for the first current component, where the second direction is rotated from the first direction by 90 degrees; after setting the second direction, starting the rotor while the first control loop of the PMSM remains open; after starting the rotor, increasing a rotation speed of the rotor by operating the first control loop in a first closed-loop mode; and after increasing the rotation speed of the rotor, controlling the rotation speed of the rotor by operating the first control loop in a second closed-loop mode different from the first closed-loop mode.

Permanent magnet synchronous motor (PMSM) and method for starting the PMSM

Embodiments of the present disclosure provide methods, apparatuses and computer storage media for video processing. One example method comprises determining, during a conversion between a current video block of a video and a bitstream of the video, at least one set of motion candidates for the current video block, each motion candidate comprising predicted motion information determined from neighboring video blocks of the current video block; determining, based on a template of the current video block and from the at least one set of motion candidates, a target motion candidate for the current video block by using a template matching cost rule; and performing the conversion based on the target motion candidate.

Methods and systems for motion candidate derivation

Methods, devices, and systems related to video processing are disclosed. In one example aspect, a method of video processing includes performing a conversion between a block of a current picture of a video and a coded representation of the video using an intra-subblock partitioning (ISP) mode. A prediction is determined for each sub-partition using an intra-prediction process based on samples in the current picture using the ISP mode. The block is partitioned into multiple sub-partitions including a first sub-partitions having a same top-left corner position as a top-left corner position of the block.

Sub-partitioning in intra coding

The present application relates to signaling of combined intra-inter prediction. A method for processing video includes: coding, during a conversion between a current video block in a video data and a bitstream representation of the current video block, a combined inter-intra prediction (CIIP) flag for the current video block by a context model based coding without referring to a CIIP flag of one or more neighboring video blocks to the current video block, and performing, at least by applying the combined inter-intra prediction (CIIP) flag of the current video block, the conversion.

Signaling of combined intra-inter prediction

Growing community of inventors

Beijing, China

Na Zhang