Hulu, LLC

Beijing Baidu Netcom Science and Technology Co., Ltd.

China Institute of Water Resources and Hydropower Research

China University of Petroleum

Cnpc Engineering Technology R&d Company Limited

Cnpc Chuanqing Drilling Engineering Company Limited

Boe Technology Group Co., Ltd.

Disney Enterprises, Inc.

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

Hefei Boe Optoelectronics Technology Co., Ltd.

Petrochina Company Limited

Beijing Jiaotong University

Beijing Yojaja Software Technology Development Co., Ltd.

Squadeo S.as.

Cnpc East China Design Institute

Xiaobo Liu

Wenhao Zhang

Chen Liu

Deliang Fu

Xuchang Huangfu

Pengcheng Yuan

Weijie Wang

Xunchao Song

Fei Dong

Yang Wang

Xi Chen

Chao Zhang

Yong Wang

Rui Zhang

Li Li Zhao

Guancheng Jiang

Lan Xie

Yinbo He

Lili Yang

Yongsheng Zhang

Chunyao Peng

Tengfei Dong

Xuwu Luo

Bin Tan

Kaixiao Cui

Xing Liang

Rongchao Cheng

Renkai Yang

Shuai Lou

Xiaohu Luo

Tie Geng

Daqi Fu

Zhuowei Wang

Wenqi Peng

Xuekai Chen

Jun Zhu

Xin Zhang

Wei Peng Huang

Scott C Labrozzi

Jinsheng Sun

Dong Yan Yang

Kun Yu

Yuanyi Xue

Miao Yu

Wei Huang

Xinwei Feng

Feng Qiu

Yuhu Zhang

Xingchen Liu

Francois Martin

Hongke Zhang

Xiaoxiao Ni

Wentong Huang

Jianguo Zhang

Hongying Wang

Yu Jin

Jialin Wu

Jiepeng Zheng

Jiansheng Luo

Xuping Cao

Yingjie Shao

Qi Su

Zenglin Wang

Xuehua Li

Ping Dong

Yajuan Qin

Qihua Ran

Yizheng Li

Honghao Zhu

Gang Chen

Likang Wang

Chenguang Xiang

Leixiang Wu

Yuan Si

Changwei Chen

Qifa Ran

Yanfang Zhao

Jigen Lv

Aiping Huang

Anqi Li

Fengjiao Li

Zhenmin Cheng

Shengshan Li

Guoqi Wang

Zhenyuan Wang

Zibin Huang

Yu Long

Haisheng Jiang

In some embodiments, a method generates a first representation of a first relationship between bitrate and quality based on first features of a first portion of a video. Also, the method generates a second representation of a second relationship between bitrate and quality based on second features of a second portion of a video. The first representation is analyzed to determine a first list of bitrates for the first portion of video and the second representation is analyzed to determine a second list of bitrates for the second portion of video. The first list of bitrates is different from the second list of bitrates. The method outputs the first list of bitrates for use encoding the first portion of video and the second list of bitrates for use encoding the second portion of video.

Dynamic selection of candidate bitrates for video encoding

A method and device for predicting a flow capacity of an ecological river channel with vegetation are provided. The method includes: obtaining ecological rive channel geographic data during dry season and ecological zone vegetation data; obtaining a layout strategy of a liquid level sensor group based on ecological zone distribution data and ecological zone vegetation data, the layout strategy of the liquid level sensor group reflects an inundation status of emergent vegetation in the ecological zone by rivers during flood season; obtaining a prediction river flow data at a node location of the ecological zone based on a corrected roughness coefficient of the ecological zone and water level data during the flood season, the node location is a position corresponding to a cross section of the water flow. A directional monitoring for a specific zone is formed with the liquid level sensor group.

Method and device for predicting flow capacity of ecological river with vegetation

In some embodiments, a method receives a file for transcoding. A timing requirement is associated with the transcoding of the file. The method generates a prediction of a timing estimation based on characteristics of the file and a set of target configurations. A target configuration in the set of target configurations is associated with a transcoding setting. The timing estimation is analyzed for the set of target configurations and the timing requirement to determine a transcoding configuration of a transcoding system. The transcoding configuration of the transcoding system is output to configure the transcoding system to transcode the file. The file is to be transcoded using at least a portion of the set of target configurations based on configuring of the transcoding system.

Optimized video transcoding based on a timing requirement

In some embodiments, a method selects a first template of pixels that is outside of a first block and a second template of pixels that is outside of the first block. Then, the method selects a first region of pixels that are inside the first block and a second region of pixels that are inside the first block. A first weight is calculated based on the first template of pixels and the first region of pixels and a second weight is calculated based on the second template of pixels and the second region of pixels. The first weight and the second weight are used in a motion prediction search for a second block.

Selective template matching in video coding

The present invention relates to a water flow measuring drifting buoy capable of preventing stranding and resisting impact, which includes: a ball-game table-shaped inflation body with a counterweight capable of drifting autonomously in a direction of a main stream of a water flow, wherein the inflation body is provided with at least two inflation connectors, and the inflation connectors are of a cross-shaped structure formed by connecting in a conical distribution with 4 inflation-stabilizing rods uniformly distributed along a circumferential radiation; the counterweight is 4-10 fan-shaped steel plates arranged annularly in the center of the bottom of the inflation body, and the fan-shaped steel plates are flexibly connected to each other to be able to shake. The ball-game table structure used in the present invention is selected by comparing various shapes to push a buoy to the middle of a river where the water flow is turbulent by using the difference in a water flow speed to prevent the water flow from being stranded where the water flow is slow or being blocked by a rock at a river bank so as not to continue the drift. The steel plate of the cross-shaped structure in the fan-shaped distribution is used, so that the buoy can be turned up and continue to drift once it has fallen to the ground, greatly improving the efficiency of drift.

Water flow measuring drifting buoy capable of preventing stranding and resisting impact

In some embodiments, a method analyzes content of a video to generate a representation for a video that represents a relationship of a bitrate to a quality measurement for the video. A plurality of candidate points on the representation are selected. Then, the method selects a profile ladder from at least a portion of the plurality of candidate points. Each profile in the profile ladder is associated with a candidate point and the profile includes a corresponding bitrate and a quality measurement for the respective candidate point. The profile ladder is used for the video.

Adaptive transcoding of profile ladder for videos

The present invention relates to a device, a system and a method for monitoring river flow velocity based on differential pressure measurement, comprising: a hull floating on a water surface with an aspect ratio of the hull being greater than one, characterized in that pressure sensors are respectively provided on an upstream face of a front end and a downstream face of a rear end below the floatation line of a ship; an electronic instrument is provided in the hull, and the electronic instrument comprises an acquisition module connected to the two pressure sensors, the acquisition module being connected to a data processing module with a memory, and the data processing module being connected to a satellite positioning module and a wireless communication module. According to the present invention, the flow velocity of water flow is measured based on the difference between the simulated measured upstream face pressure at the bow and the simulated measured downstream face pressure at the stern by an unpowered measuring ship drifting on the water surface. The measured data is transmitted to the data processing center on the ground via the wireless communication network. The present invention enables the flow data to be measured in presence of poor satellite positioning signals and public network signals or no signals, achieving data transmission independent of satellite positioning and public communication networks.

Device, system and method for monitoring river flow velocity based on differential pressure measurement

The present invention relates to the field of petroleum industry phase oilfield chemistry, and specifically relates to a bionic and dual-phobic drilling fluid. The drilling fluid contains a bionic wall-fixing agent, a bionic lubricant, a super dual-phobic agent, a scrap-carrying agent and a bionic shale inhibitor. The present invention uses the theory of bionics and the theory of a downhole rock surface being double phobic as a basis. By means of using the bionic wall-fixing agent, the bionic lubricant, the super dual-phobic agent, the scrap-carrying agent and the bionic shale inhibitor, which have special properties of imitating animals and plants in nature, and using a series of bionic treatment agents, a set of bionic and dual-phobic drilling fluid systems, which corresponds to an unconventional, complex oil and gas well, is formed.

Bionic and dual-phobic high-performance water-based drilling fluid

A treatment method for a river system in a reservoir area, comprising: S. determining whether a time from a current date to the rainy season is less than a preset duration; S. moving a pressure sensor upward; S. determining whether the pressure data meets corresponding conditions; S. determining whether a duration of the pressure data is less than the preset duration; S. determining whether an interval between the current time and the time for collecting pressure/nitrogen and phosphorus is greater than a preset number of days; S. acquiring an image information of a river bottom, and sending it to neural network model for identification to obtain a depth of a sludge; S. determining whether the depth of a sludge has reached a dredging depth, if so, starting a sludge pump to clean up; S. collecting nitrogen and phosphorus concentration, and removing nitrogen and phosphorus when the concentration exceeds a standard.

Treatment method for a river system in a reservoir area and treatment system

A 4D quantitative and intelligent diagnosis method for spatio-temporal evolution of oil-gas reservoir damage types and extent includes: determining a characteristic parameter characterizing reservoir damage by each of a plurality of factors based on a spatio-temporal evolution simulation equation of reservoir damage by each of the plurality of factors; and determining an effective characteristic parameter characterizing the damage extent of the reservoir based on the characteristic parameter characterizing reservoir damage by each of the plurality of factors. The method quantitatively simulate the characteristic parameters of reservoir damage caused by the various factors and a total characteristic parameter of the reservoir damage.

4D quantitative and intelligent diagnosis method and system for spatio-temporal evolution of oil-gas reservoir damage types and extent

In some embodiments, a method receives a current encoding stream of a video. A first measurement for a reference encoding stream is selected to measure a quality of the reference encoding stream. The method compares a second measurement of the current encoding stream to the first measurement of the reference encoding stream and outputs whether the current encoding stream is validated based on the comparing.

Cross-validation of video encoding

In some embodiments, a method generates a representation for a video that represents a relationship of a bitrate to a quality measurement for the video and selects candidate transcoding points on the representation. A plurality of candidate profile ladders are generated based on the candidate transcoding points. Each of the plurality of candidate profile ladders includes a different combination of profiles and a profile is associated with at least one of a bitrate and a quality measurement. The method selects a profile ladder from the plurality of candidate profile ladders based on analyzing the bitrate or the quality of the profile ladder and uses the profile ladder for the video.

The present disclosure provides an artificial intelligence-based triple checking method and apparatus, a device and a storage medium. The method comprises: generating a search query according to a triple to be checked; obtaining webpages of search result corresponding to the query; determining a confidence score of the triple according to the webpages of search result; determining whether the triple is an accurate triple according to the confidence score. The solution of the present disclosure can be employed to achieve efficient check of the triple.

Artificial intelligence-based triple checking method and apparatus, device and storage medium

In some embodiments, a method determines a combination of sub-bitstream chunks from a plurality of sub-bitstreams for a video. The combination of sub-bitstream chunks includes a quality measurement. The method exchanges a sub-bitstream chunk in the combination of sub-bitstream chunks with another sub-bitstream chunk from another sub-bitstream in the plurality of sub-bitstreams based on a relationship of a change in bitrate to a change in quality due to the exchanging. The method continues to exchange a sub-bitstream chunk in the combination of sub-bitstream chunks with another sub-bitstream chunk until the quality measurement of the combination of sub-bitstream chunks meets a target quality and outputs the combination of sub-bitstream chunks.

Video chunk combination optimization

Growing community of inventors

Beijing, China

Xiaobo Liu