Method and apparatus for providing trick play service
    1.
    发明授权
    Method and apparatus for providing trick play service 有权
    提供特技播放服务的方法和装置

    公开(公告)号:US08515265B2

    公开(公告)日:2013-08-20

    申请号:US12945194

    申请日:2010-11-12

    IPC分类号: H04N5/783

    摘要: A method and apparatus for providing a trick play service in a hypertext transfer protocol (HTTP) adaptive streaming (HAS) architecture for adaptively streaming media data according to fluctuation of a streaming environment are provided. The method at a server includes: generating a media presentation description (MPD) file including information about at least one piece of trick play data; transmitting the MPD file to a client; and transmitting the at least one piece of trick play data to the client in response to a request by the client based on the MPD file. The method at a client includes: receiving a media presentation description (MPD) file including information about at least one piece of trick play data; and receiving the at least one piece of trick play data from a server based on the MPD file.

    摘要翻译: 提供了一种用于在超文本传输​​协议(HTTP)自适应流(HAS)架构中提供特技播放服务的方法和装置,用于根据流环境的波动自适应地流式传输媒体数据。 服务器上的方法包括:生成包括关于至少一个特技播放数据的信息的媒体呈现描述(MPD)文件; 将MPD文件发送给客户端; 以及响应于所述客户端基于所述MPD文件的请求,将所述至少一个特技播放数据发送​​给所述客户端。 客户端的方法包括:接收包括关于至少一条特技播放数据的信息的媒体呈现描述(MPD)文件; 以及基于所述MPD文件从服务器接收所述至少一条特技播放数据。

    Interframe wavelet video coding method
    10.
    发明授权
    Interframe wavelet video coding method 有权
    帧间小波视频编码方法

    公开(公告)号:US07292635B2

    公开(公告)日:2007-11-06

    申请号:US10892447

    申请日:2004-07-16

    IPC分类号: H04B1/66

    摘要: An interframe wavelet video coding (IWVC) method by which an average temporal distance (ATD) is minimized is provided. The IWVC method comprises receiving a group-of-frames and decomposing the group-of-frames into difference frames and first average frames between the frames in a first forward temporal direction and a backward temporal direction, wavelet-decomposing the first difference frames and the first average frames, and quantizing coefficients resulting from the wavelet-decomposition to generate a bitstream. The IWVC method provides improved video coding performance.

    摘要翻译: 提供了将平均时间距离(ATD)最小化的帧间小波视频编码(IWVC)方法。 IWVC方法包括:接收一组帧,并将该组帧分解为第一前向和后向方向上的帧之间的差分帧和第一平均帧,小波分解第一差分帧和 第一平均帧和由小波分解产生的量化系数以产生比特流。 IWVC方法提供了改进的视频编码性能。