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    METHOD AND APPARATUS FOR SHOT DETECTION IN VIDEO STREAMING
    11.
    发明申请
    METHOD AND APPARATUS FOR SHOT DETECTION IN VIDEO STREAMING 失效
    视频流中拍摄检测的方法与装置

    公开(公告)号：US20070160128A1

    公开(公告)日：2007-07-12

    申请号：US11538421

    申请日：2006-10-03

    申请人： Tao Tian ,  Gordon Walker ,  Vijayalakshmi Raveendran

    发明人： Tao Tian ,  Gordon Walker ,  Vijayalakshmi Raveendran

    IPC分类号： H04B1/66

    CPC分类号： H04N5/147 ,  H04N19/107 ,  H04N19/114 ,  H04N19/14 ,  H04N19/142 ,  H04N19/159 ,  H04N19/177 ,  H04N19/179 ,  H04N19/51 ,  H04N19/577 ,  H04N19/61 ,  H04N19/87

    摘要： The invention comprises devices and methods for processing multimedia data. Such methods can include obtaining at least one metric indicative of a difference for a selected frame and adjacent frames in a plurality of video frames, the metric comprising bi-directional motion information and luminance difference information, determining a shot event in the selected frame based on the at least one metric, and adaptively encoding the selected frame based on the shot event. An apparatus for processing a multimedia data can include a motion compensator configured to obtain metrics indicative of a difference between adjacent frames of a plurality of video frames, said metrics comprising bi-directional motion information and luminance information, a shot classifier configured to determine a shot event in the plurality of video frames based on said metrics, and an encoder configured to adaptively encode the plurality of frames based on the shot event.

    摘要翻译： 本发明包括用于处理多媒体数据的设备和方法。 这样的方法可以包括获得指示多个视频帧中的所选帧和相邻帧的差异的至少一个度量，该度量包括双向运动信息和亮度差异信息，基于所选择的帧中的拍摄事件确定 所述至少一个度量，并且基于所述拍摄事件自适应地编码所选择的帧。 用于处理多媒体数据的装置可以包括：运动补偿器，被配置为获得指示多个视频帧的相邻帧之间的差异的度量，所述度量包括双向运动信息和亮度信息;镜头分类器，被配置为确定镜头 事件，以及编码器，被配置为基于所述拍摄事件自适应地编码所述多个帧。

    Multimedia coding techniques for transitional effects
    12.
    发明申请
    Multimedia coding techniques for transitional effects 有权
    用于过渡效应的多媒体编码技术

    公开(公告)号：US20070074117A1

    公开(公告)日：2007-03-29

    申请号：US11501969

    申请日：2006-08-09

    申请人： Tao Tian ,  Fang Shi ,  Vijayalakshmi Raveendran

    发明人： Tao Tian ,  Fang Shi ,  Vijayalakshmi Raveendran

    IPC分类号： G11B27/00

    CPC分类号： H04N5/262 ,  H04N19/103 ,  H04N19/142 ,  H04N19/179 ,  H04N19/46 ,  H04N19/61

    摘要： This disclosure is directed to techniques for encoding and decoding transitional effects, i.e., visual video effects that are used to transition from a current scene of a multimedia sequence. According to the disclosed techniques, an encoding device detects a transitional effect associated with a multimedia sequence during the encoding of the multimedia sequence, and transmits information as part of an encoded multimedia sequence to identify the transitional effect associated with the encoded multimedia sequence to a decoder. The information may comprise metadata that can be used by the decoder to simulate or re-create the transitional effect. The decoder simulates a transitional effect in response to the information.

    摘要翻译： 本公开涉及用于编码和解码过渡效果的技术，即用于从多媒体序列的当前场景转换的视觉效果。 根据所公开的技术，编码装置在多媒体序列的编码期间检测与多媒体序列相关联的过渡效应，并且作为编码的多媒体序列的一部分发送信息，以将与编码的多媒体序列相关联的过渡效果识别到解码器 。 信息可以包括可由解码器使用以模拟或重新创建过渡效果的元数据。 解码器模拟响应信息的过渡效应。

    Mode selection techniques for multimedia coding
    16.
    发明申请
    Mode selection techniques for multimedia coding 有权
    多媒体编码模式选择技术

    公开(公告)号：US20070071105A1

    公开(公告)日：2007-03-29

    申请号：US11509214

    申请日：2006-08-23

    申请人： Tao Tian ,  Vijayalakshmi Raveendran

    发明人： Tao Tian ,  Vijayalakshmi Raveendran

    IPC分类号： H04N11/04 ,  H04N7/12

    CPC分类号： H04N19/192 ,  H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

    摘要： This disclosure describes techniques for improving mode selection decisions during the encoding of macroblocks (or other blocks) of multimedia frames of a multimedia sequence. During motion estimation, the encoding modes for macroblocks can be determined so that a desirable encoding rate and acceptable levels of distortion (i.e., acceptable rate-distortion) can be achieved. The techniques may include selecting a set of multimedia coding modes between at least two sets of possible multimedia coding modes for a macroblock of a multimedia frame based on a detail metric associated with the macroblock and mode information associated with neighboring blocks to the macroblock.

    摘要翻译： 本公开描述了在多媒体序列的多媒体帧的宏块（或其他块）的编码期间改进模式选择决定的技术。 在运动估计期间，可以确定宏块的编码模式，使得可以实现期望的编码速率和可接受的失真水平（即，可接受的速率失真）。 这些技术可以包括基于与宏块相关联的细节度量和与宏块的相邻块相关联的模式信息，在多媒体帧的宏块的至少两组可能的多媒体编码模式之间选择一组多媒体编码模式。

    VIDEO PROCESSING WITH SCALABILITY
    18.
    发明申请
    VIDEO PROCESSING WITH SCALABILITY 审中-公开
    视频处理与可扩展性

    公开(公告)号：US20070230564A1

    公开(公告)日：2007-10-04

    申请号：US11562360

    申请日：2006-11-21

    申请人： Peisong Chen ,  Tao Tian ,  Fang Shi ,  Vijayalakshmi R. Raveendran

    发明人： Peisong Chen ,  Tao Tian ,  Fang Shi ,  Vijayalakshmi R. Raveendran

    IPC分类号： H04N11/02

    CPC分类号： H04N21/434 ,  H04N19/29 ,  H04N19/31 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2662

    摘要： In general, this disclosure describes video processing techniques that make use of syntax elements and semantics to support low complexity extensions for multimedia processing with video scalability. The syntax elements and semantics may be added to network abstraction layer (NAL) units and may be especially applicable to multimedia broadcasting, and define a bitstream format and encoding process that support low complexity video scalability. In some aspects, the techniques may be applied to implement low complexity video scalability extensions for devices that otherwise conform to the H.264 standard. For example, the syntax element and semantics may be applicable to NAL units conforming to the H.264 standard.

    摘要翻译： 一般来说，本公开描述了利用语法元素和语义来支持具有视频可扩展性的多媒体处理的低复杂度扩展的视频处理技术。 语法元素和语义可以被添加到网络抽象层（NAL）单元，并且可以特别适用于多媒体广播，并且定义支持低复杂度视频可扩展性的比特流格式和编码过程。 在一些方面，可以将这些技术应用于为符合H.264标准的设备实现低复杂度视频可扩展性扩展。 例如，语法元素和语义可以适用于符合H.264标准的NAL单元。