Microsoft Technology Licensing, LLC

Beijing Baidu Netcom Science and Technology Co., Ltd.

Huifeng Shen

Shipeng Li

Yan Lu

Zhaotai Pan

Jianfeng Wang

Feifei Cao

Feng Wu

Huaifei Xing

Xiaoming Wang

Wenpeng Ding

Yongxing Li

John Allen Tardif

Hsiao-Wuen Hon

Xu Liang Li

Matt Bronder

Minglu Li

Jingbo Huang

Jun Ge

Li You

Jialiang Wang

Hongbai Dong

Haicheng Sun

Zhenliang Jiang

A proxy-based thin-client web browsing framework enables cooperative web browsing of multiple devices. The multiple devices may include devices that are not intended for web browsing and have limited or no web browsers and/or user input capabilities. The proxy-based thin client web browsing framework employs a virtual browser at a proxy server to perform all browser-engine logics, and retrieve, render and encode web pages on behalf of the multiple devices. The multiple devices therefore only need to have limited decoding and display capabilities to perform web browsing. The proxy-based thin client web browsing framework further includes a touch controller as a remote controller for a device that has no or limited user texting or manipulating capabilities.

Cooperative web browsing using multiple devices

A computer-implemented method for displaying at least a portion of content being displayed on a first device to also be displayed on a second device. The method includes causing content to be displayed on a first device. The method then includes detecting a second device to concurrently display at least a portion of the content being displayed on the first device. A capability of the first device is compared with a capability of the second device. Based on the comparing, the at least the portion of the content is automatically provided to be displayed on the second device.

Embodiments of the present disclosure relate to a method and apparatus for processing a video. The method may include: acquiring object regions obtained by performing object detection on a target video frame, a type of an object in each of the object regions being a preset type; determining, for an object region in the acquired object regions, in response to determining that the object region satisfies a preset condition, that the object region is a non-ROI; using an object region other than the non-ROI in the object regions of the target video frame as a ROI; and acquiring a quantization parameter change corresponding to each ROI, and encoding the target video frame based on the quantization parameter change.

Method and apparatus for determining region of interest

Embodiments of the present disclosure relate to a method and apparatus for processing a video frame. The method may include: acquiring a sequence of video frames of a video; ascertaining, in the sequence of the video frames, a previous frame, and ascertaining, in the sequence of the video frames, a subsequent frame corresponding to the ascertained previous frame based on acquired number of frames from the previous frame to the subsequent frame. An update step is performed as follows: acquiring object regions detected respectively in the ascertained previous frame and the ascertained subsequent frame, and confidence levels of the object regions; fusing a confidence level of a first object region and a confidence level of a second object region, and updating the confidence level of the second object region based on the fusion result; and updating the ascertained previous frame and the ascertained subsequent frame.

Method and apparatus for processing video frame

Embodiments of the present disclosure relate to a method, apparatus, and system for slicing live streaming. A method may include: acquiring the live streaming from a live source station server; slicing the live streaming to generate an index file and sliced files of the live streaming; and sending the index file and the sliced files of the live streaming to an object storage server, to cause the object storage server to store the index file and the sliced files of the live streaming.

Method, apparatus and system for slicing live streaming

A video system, a video processing method, a device and a computer readable medium are disclosed. The system includes: a front-end device and a cloud server; the front-end device is configured to collect video stream data, and set a video identifier and a service scenario identifier for the video stream data, upload the video identifier, the video stream data and the service scenario identifier to the cloud server; the cloud server is configured to generate a video file corresponding to the video identifier according to the service scenario identifier, the video identifier and the video stream data; and store the video file.

Video system and video processing method, device and computer readable medium

Embodiments of the present disclosure relate to a method and apparatus for processing a video. The method can include: acquiring a to-be-processed video, and dividing the video into at least one video segment according to a scene; for a video segment of the at least one video segment, extracting a feature of the video segment; inputting the feature and a target video quality into a pre-trained encoding parameter prediction model, to obtain an encoding parameter of the video segment, the encoding parameter prediction model being used to represent a corresponding relationship between the feature of the video segment and the encoding parameter under the target video quality; and performing an encoding process on the video according to the encoding parameter corresponding to the video segment of the at least one video segment, to generate an encoded video.

Method and apparatus for processing a video

A method and apparatus for adaptively providing multiple bit rate streaming media in a server. The method for adaptively providing multiple bit rate streaming media comprises: acquiring network quality information; in the case that it is determined based on the network quality information that bit rate switching is needed, selecting one queue from all queues as the transmitting queue, wherein multimedia data frames with different bit rates for the same media content are stored in different queues; reading the multimedia data frame from the transmitting queue and sending it, and deleting all multimedia data frames in other queues having the same media content as the already-sent multimedia data frame. The technical solutions provided by the present disclosure reduces bit rate switching delay while implementing adaptive bit rate switching, and implements quick and seamless adaptive bit rate switching.

Method and apparatus for adaptively providing multiple bit rate streaming media in server

Disclosed is a method and device for switching video streams. The method comprises: acquiring video streams of a video in response to receiving a playback request for the video sent by a terminal, the video streams comprising: a video stream with a first group of pictures (GOP) frame number and a video stream with a second GOP frame number; sending the video stream with the first GOP frame number to the terminal, searching for a third key frame in the video stream with the first GOP frame number, and extracting a decoding time stamp (DTS) of the third key frame; searching the video stream with the second GOP frame number for a frame having an identical DTS; determining whether the frame is a fourth key frame in response to finding the frame having the identical DTS; and sending the video stream with the second GOP frame number to the terminal.

Method and device for switching video streams

A home cloud computing system employs a virtualization system to virtualize data of a device and adaptively transform type or format of the virtualized data for one or more other devices, thus leveraging resources of the device for the one or more other devices. Through data virtualization and adaptive transformation, devices of heterogeneous types are seamlessly connected to one another and can act as input or output devices for each other to create a home cloud network of devices.

Home cloud with virtualized input and output roaming over network

Techniques describe providing a web page for a proxy-based browser on a mobile device to enhance user experience. A proxy server receives a layout of the web page, extracts web elements from the web page, and captures images of the web elements of the web page. The web elements are incorporated with a background screen image to form a composite screen format to represent a display of the web page. The background screen image is compressed by splitting an encoded frame into fixed-size slices and splitting a previous screen frame into fixed-size slices. The proxy server provides the web page synchronized with the mobile device based on the composite screen format and the compressed background screen image. Furthermore, the proxy server receives input from a user to provide updates to web elements that are dynamic on the web page to be displayed on the screen of the mobile device.

Using a proxy server for a mobile browser

One or more portions of a compound image may be classified as picture portions and at least one remaining portion of the compound image may be classified as a non-picture portion. A first layer of a layered image may be generated based on the picture portions of the compound image. The first layer may be compliant with a first image format. A second layer of the layered image may be generated based on the non-picture portion. The second layer may be compliant with a second image format that is different from the first image format. The first layer and the second layer may be sent to a web browser. The first format and the second format may be supported by the web browser.

Hybrid codec for compound image compression

Various technologies for a layered texture compression architecture. In one implementation, the layered texture compression architecture may include a texture consumption pipeline. The texture compression pipeline may include a processor, memory devices, and textures compressed at varying ratios of compression. The textures within the pipeline may be compressed at ratios in accordance with characteristics of the devices in the pipeline that contains and processes the textures.

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Beijing, China

Huifeng Shen