35results about How to "Guaranteed viewing quality" patented technology

The invention discloses a video source determination method comprising the steps of when the condition that a first video source of a currently playing video is in an abnormal state is monitored, recording a time length of the first video source in the abnormal state, and determining a first time length; judging whether the time length of the first video source in the abnormal state is more than the first time length; when the time length of the abnormal state is more than the first time length, determining a second video source based on a preset changing strategy; and playing the currently playing video based on the second video source. The embodiment of the invention provides a video source determination device and a computer readable storage medium.

The invention discloses a self-adaptive scalable video coding and decoding structure design method which is based on a region of interest and a scalable video coding and decoding technical system architecture of the region of interest (ROI); the content of a video is segmented by a self-adaptive video segmentation and tracking technology, thereby realizing the separation of the region of interest(ROI) from a background; the time-domain redundancy is eliminated by a regional motion compensation time-domain filter technology of the ROI; information of the region of interest (ROI) can be coded and transmitted prior to the background region by a ROI self-adaptive bit plane lifting technology of regional wavelet, thereby obtaining better visual effect under the low code rate; a regional time-frequency domain factor carries out the distinction between the region of interest (ROI) and the background by a regional self-adaptive template technology; and the self-adaptive code rate distribution of the region of interest (ROI) and the background is realized by a regional self-adaptive code rate control technology.

The invention provides a file sharing system and a corresponding file sending and receiving method and device, and relates to the technical field of file sharing. The file sharing system includes a file sending device and a file receiving device. The file sending device includes a file format conversion module, a file format conversion module, a first file compression module, a second file compression module, and a file sending module. The file receiving device includes a file receiving module. module, a first decompression module, a second decompression module, and a file format conversion module. Since the document is divided into small pieces by page and better compressed, the timeliness of document sharing can be realized, and the page-by-page segmentation also realizes the page-by-page synchronization of document sharing control. The document conversion format is an enhanced metadata file, which can be displayed on the Windows platform without installing other tools.

The invention relates to a method for controlling relay in alternative multi-view-point video flow media service, which belongs to the technical field of multimedia data transmission. The method mainly comprises the following steps: firstly, carrying out the time synchronization between users and a server, wherein the server enables the users who watch the same view-point to build a view-point inner overlay network, all the view-point inner overlay networks together build an overlay network between the view-points, when the users watch multi-view-point video programs, the equal overlay networks are added on the two levels, key frame data in the multi-view-point programs is averagely divided into a plurality of key frame data segments and are respectively transferred to audiences who watchthe different view-points, all the audiences mutually exchanges the key frame segments of their own, and the bandwidth spending of the server during the transmission process is reduced according to the transmission condition of the current data. The method reduces the dependence to the bandwidth resource of the server during the view-point switching process according to the neighbor node bandwidthresources, reduces the intermediate section during the view-point switching process, speeds up the switching speed of the view-points, improves the service quality and increases the watching experience of users.