Microsoft Technology Licensing, LLC

Boe Technology Group Co., Ltd.

Lenovo (beijing) Limited

Beijing Boe Optoelectronics Technology Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Beijing Lenovo Software Ltd.

Beijing University of Technology

Tsinghua University

Lenovo (singapore) Pte. Ltd.

Toyota Jidosha Kabushiki Kaisha

International Business Machines Corporation

Telefonaktiebolaget Lm Ericsson (publ)

Hon Hai Precision Industry Co., Ltd.

Beijing Xiaomi Mobile Software Co., Ltd.

Beijing Qihoo Technology Company Limited

Jian Li

Jizheng Xu

Feng Wu

Gary Joseph Sullivan

Jiahao Li

Ji-Zheng Xu

Yufeng Wu

Haibin Yin

Qun Fang

Wei Zhang

Qi Liu

Jian Ye Chen

Sheng Wang

Wenhao Tang

Benzhi Xu

Tao Zhu

Huifang Yuan

Chao Li

Ming-Chieh Lee

Yan Lu

Jilei Gao

Dean Pan

Yiqiang Yan

Xuchen Yuan

Xipeng Wang

Xin Li

Pengju Zhang

Yonggang Zhang

Chih-Lung Lin

Thomas W Holcomb

Scott Edwards Kelso

Steven Richard Perrin

Detao Zhao

You Zhou

Mei-Hsuan Lu

Yunfei Liu

Jinbo Ding

Hao Chen

Bo Liu

Xin Zhou

Mark Charles Davis

Chao Xu

Qian Zhao

Jian Ren

Le Zhang

Hanqing Liu

Chuanjun Xia

Peng Liu

Tao Wang

Ming Lei Zhang

Wei He

Tao Ma

Ying Li

Qing Fa Wang

Min Wang

Rui Ma

Yong Wang

Haifeng Hu

Wei Wu

Bin Zhao

Wei Xu

Jing Yan Ma

Peng Zhao

Jennifer Greenwood Zawacki

Guancheng Jiang

Hong Liu

Ting Zeng

Yezhou Fang

Gang Yu

Lin Zhu

Chi Yuen Raymond Kwong

Dan Su

Wen-Zhen Li

Hongbo Li

Lili Yang

Yinbo He

Lu Chen

Yong Song

Qicheng Chen

Matthew Price Roper

Ji Min Zhang

Chunhui Liu

Rongcheng Liu

Jun Cai

Yaqiang Wu

Weijie Ma

Chunyao Peng

Rose Shao

Pengfei Zhao

Yi Zhou

Rui Yin

Liuyue Yin

Pengcheng Tian

Zhi Du

Di Jiang

Zhen Tang

Huiming Wang

Tengfei Dong

This application provides a trusted computing-based local key escrow method, apparatus, device and medium. The method includes: determining an executable file associated with an untrusted environment and a dynamic link file associated with a trusted environment in response to acquiring an enclave interface definition file from a local internal memory; determining an environment access interface based on a container identifier indicated by the trusted environment in response to loading the dynamic link file based on the executable file; reading sealed data file obtained by encrypting serialized data based on a local key in the untrusted environment in response to accessing an enclave container in the trusted environment through the environment access interface; and decrypting the sealed data file using the local key and deserializing the decrypted sealed data file in the enclave container to obtain service data for loading into a trusted internal memory indicated by the enclave container.

Trusted computing-based local key escrow method, apparatus, device and medium

Innovations in encoder-side decisions that use the results of hash-based block matching are presented. For example, some of the innovations relate to ways of building hash tables that include some (but not all) uniform blocks. Other innovations relate to ways of determining motion vector resolution based on results of hash-based block matching. Still other innovations relate to scene change detection, including long-term reference picture selection and picture quality determination during encoding.

Hash-based encoder decisions for video coding

The present disclosure provides a method, an apparatus, a storage medium, and an electronic device for controlling an IoT device. The method includes: receiving detection data reported by an IoT device; verifying device control information based on the detection data; and sending, in response to second data in the device control information being successfully verified, a control instruction configured for execution of a pending action to the IoT device to be controlled based on first data. The above method is conductive to improving the response speed of the IoT device.

Method, apparatus, storage medium, and electronic device for controlling IoT device

A display panel having an active area includes: an array substrate and an opposite substrate disposed opposite to the array substrate. The array substrate includes a first substrate and a conductive structure disposed on the first substrate. The conductive structure is located on a side of the active area. On a side of the conductive structure away from the active area, a side surface of the conductive structure is substantially flush with a side surface of the first substrate. On the side where the conductive structure is located, an edge of an orthographic projection of the opposite substrate on a plane where the array substrate is located is located outside an edge of the array substrate.

Display panel including conductive structure and method for manufacturing the same, and display device

Innovations in adaptive encoding and decoding for units of a video sequence can improve coding efficiency when switching between color spaces during encoding and decoding. For example, some of the innovations relate to adjustment of quantization or scaling when an encoder switches color spaces between units within a video sequence during encoding. Other innovations relate to adjustment of inverse quantization or scaling when a decoder switches color spaces between units within a video sequence during decoding.

Adjusting quantization/scaling and inverse quantization/scaling when switching color spaces

Disclosed herein are representative embodiments of generating representative motion information that can be used during processing of a video frame. In one exemplary embodiment disclosed herein, a reference frame comprising a group of blocks is processed, and motion information for the group of blocks is compressed at least by buffering representative motion-vector information and representative reference-frame index information for the group of blocks. The representative reference-frame index information comprises reference-frame index information of a representative block of the group of blocks, and the representative reference-frame index information represents reference-frame index information for the group of blocks during processing of a current frame.

Representative motion information for temporal motion prediction in video encoding and decoding

Innovations in intra-picture prediction with multiple candidate reference lines available are described herein. For example, intra-picture prediction for a current block uses a non-adjacent reference line of sample values to predict the sample values of the current block. This can improve the effectiveness of the intra-picture prediction when the reference line of sample values that is adjacent the current block includes significant capture noise, significant quantization error, or significantly different values (compared to the current block) due to an occlusion. Innovations described herein include, but are not limited to, the following: intra-picture prediction with multiple candidate reference lines available; encoding/decoding of reference line indices using prediction; filtering of reference sample values; residue compensation; weighted prediction; mode-dependent padding to replace unavailable reference sample values; using in-loop-filtered reference sample values; encoder-side decisions for selecting reference lines; and post-filtering of predicted sample values.

Intra-picture prediction using non-adjacent reference lines of sample values

Innovations in unified intra block copy ('BC') and inter prediction modes are presented. In some example implementations, bitstream syntax, semantics of syntax elements and many coding/decoding processes for inter prediction mode are reused or slightly modified to enable intra BC prediction for blocks of a frame. For example, to provide intra BC prediction for a current block of a current picture, a motion compensation process applies a motion vector that indicates a displacement within the current picture, with the current picture being used as a reference picture for the motion compensation process. With this unification of syntax, semantics and coding/decoding processes, various coding/decoding tools designed for inter prediction mode, such as advanced motion vector prediction, merge mode and skip mode, can also be applied when intra BC prediction is used, which simplifies implementation of intra BC prediction.

Unified intra block copy and inter prediction modes

Innovations in adaptive encoding and decoding for units of a video sequence can improve coding efficiency. For example, some of the innovations relate to encoding/decoding that includes adaptive switching of color spaces between units within a video sequence. Other innovations relate encoding/decoding that includes adaptive switching of color sampling rates between units within a video sequence. Still other innovations relate encoding/decoding that includes adaptive switching of bit depths between units within a video sequence.

Adaptive switching of color spaces, color sampling rates and/or bit depths

A ceramic-based composite material used for low-concentration formaldehyde degradation, and preparation method therefor belonging to the technical field of environmental engineering. The present invention comprises: utilizing an alkali metal-transition metal (i.e. A-T) alcohol solution mixed at low temperature with a TiOsol to obtain an A-T-TiOsol; immersing activated ceramic (HFC) into the A-T-TiOsol, and stirring at normal temperature to obtain A-T-TiO/HFC; subjecting the obtained A-T-TiO/HFC to primary drying and primary low-temperature calcination to form A-T-TiO/FC; then immersing the A-T-TiO/FC into a metal-organic framework (MOF)-amino silane sol to obtain an aminated A-T-TiO/MOF/NFC precursor; and finally, subjecting the obtained precursor to secondary drying and secondary low-temperature calcination, forming an A-T-TiO/MOF/NFC composite material. The present invention effectively degrades low-concentration formaldehyde in indoor environments or in air. Loading MOF on an aminated ceramic and doping alkali metal significantly improve the formaldehyde enrichment and degradation performance of the composite material, which is beneficial to the thorough removal of low-concentration formaldehyde in indoor environments or in air.

Ceramic-based composite material used for low-concentration formaldehyde degradation and preparation method therefor

Innovations in intra block copy ('BC') prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding and decoding. For example, some of the innovations provide ways to select block vector (“BV”) values more effectively. Other innovations provide ways to encode/decode BV values more efficiently. Still other innovations address how to perform in-loop deblock filtering when a block has intra BC prediction mode, or address how to perform intra BC prediction when constrained intra prediction is enabled.

Features of intra block copy prediction mode for video and image coding and decoding

Implementations of the subject matter described herein provide a solution for rate control based on reinforcement learning. In this solution, an encoding state of a video encoder is determined, the encoding state being associated with encoding of a first video unit by the video encoder. An encoding parameter associated with rate control in the video encoder is determined by a reinforcement learning model and based on the encoding state of the video encoder. A second video unit different from the first video unit is encoded based on the encoding parameter. In this way, it is possible to achieve a better quality of experience (QOE) for real time communication with computation overhead being reduced.

Reinforcement learning based rate control

Techniques for coding and deriving (e.g., determining) one or more coded-block-flags associated with video content are described herein. A coded-block-flag of a last node may be determined when coded-block-flags of preceding nodes are determined to be a particular value and when a predetermined condition is satisfied. In some instances, the predetermined condition may be satisfied when log(size of current transform unit) is less than log(size of maximum transform unit) or log(size of current coding unit) is less than or equal to log(size of maximum transform unit)+1. The preceding nodes may be nodes that precede the last node on a particular level in a residual tree.

Coded-block-flag coding and derivation

Innovations in encoder-side options for intra block copy ('BC') prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding. For example, some of the innovations relate to concurrently performing block vector (“BV”) estimation and making block splitting decisions for a block. Other innovations relate to selectively merging blocks into a larger block during BV estimation.

Encoder-side options for intra block copy prediction mode for video and image coding

Innovations in flexible reference picture management are described. For example, a video encoder and video decoder use a global reference picture set ('GRPS') of reference pictures that remain in memory, and hence are available for use in video encoding/decoding, longer than conventional reference pictures. In particular, reference pictures of the GRPS remain available across random access boundaries. Or, as another example, a video encoder and video decoder clip a reference picture so that useful regions of the reference picture are retained in memory, while unhelpful or redundant regions of the reference picture are discarded. Reference picture clipping can reduce the amount of memory needed to store reference pictures or improve the utilization of available memory by providing better options for motion compensation. Or, as still another example, a video encoder and video decoder filter a reference picture to remove random noise (e.g., capture noise due to camera imperfections during capture).

Flexible reference picture management for video encoding and decoding

Growing community of inventors

Beijing, China

Jian Li