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    METHOD AND APPARATUS FOR SHOT DETECTION IN VIDEO STREAMING
    4.
    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。

    METHOD AND APPARATUS FOR IMPROVED MULTIMEDIA DECODER
    7.
    发明申请
    METHOD AND APPARATUS FOR IMPROVED MULTIMEDIA DECODER 失效
    改进的多媒体解码器的方法和装置

    公开(公告)号：US20070205929A1

    公开(公告)日：2007-09-06

    申请号：US11737699

    申请日：2007-04-19

    申请人： Vijayalakshmi Raveendran ,  Peisong Chen ,  Tao Tian

    发明人： Vijayalakshmi Raveendran ,  Peisong Chen ,  Tao Tian

    IPC分类号： H03M7/40

    CPC分类号： H03M7/425 ,  H03M7/40

    摘要： Embodiments include systems and methods of improving processing in a decoder in a multimedia transmission system. Multimedia data may include one or more of motion video, audio, still images, or any other suitable type of audio-visual data. One embodiment includes a system and method of parsing fixed and variable length codes from a bit-wise stream of multi-media data by maintaining and reading the data in a processor aligned (e.g., word aligned) way. Another embodiment includes a system and method of decoding variable length codes, particular as received from such a variable length code using multiple levels of decoding tables to speed up decoder table lookup.

    摘要翻译： 实施例包括改进多媒体传输系统中的解码器中的处理的系统和方法。 多媒体数据可以包括运动视频，音频，静止图像或任何其它合适类型的视听数据中的一个或多个。 一个实施例包括通过以处理器对齐（例如，字对准）的方式维持和读取数据来解码来自多媒体数据的逐位流的固定和可变长度代码的系统和方法。 另一实施例包括对可变长度码进行解码的系统和方法，特别是从使用多级解码表的这种可变长度码接收到的，以加速解码器表查找。

    Mode selection techniques for multimedia coding
    9.
    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。

    MOTION AND APPARATUS FOR SPATIO-TEMPORAL DEINTERLACING AIDED BY MOTION COMPENSATION FOR FIELD-BASED VIDEO
    10.
    发明申请
    MOTION AND APPARATUS FOR SPATIO-TEMPORAL DEINTERLACING AIDED BY MOTION COMPENSATION FOR FIELD-BASED VIDEO 审中-公开
    用于基于现场视频的运动补偿辅助空间移动的运动和装置

    公开(公告)号：US20070206117A1

    公开(公告)日：2007-09-06

    申请号：US11536894

    申请日：2006-09-29

    申请人： Tao Tian ,  Fang Shi ,  Vijayalakshmi Raveendran

    发明人： Tao Tian ,  Fang Shi ,  Vijayalakshmi Raveendran

    IPC分类号： H04N7/01

    CPC分类号： H04N7/012 ,  H04N5/145

    摘要： The invention comprises devices and methods for processing multimedia data to generate progressive frame data from interlaced frame data. In one aspect, a method of processing multimedia data includes generating spatio-temporal information for a selected frame of interlaced multimedia data, generating motion information for the selected frame, and deinterlacing fields of the selected frame based on the spatio-temporal information and the motion information to form a progressive frame associated with the selected frame. In another aspect an apparatus for processing multimedia data can include a spatial filter module configured to generate spatio-temporal information of a selected frame of interlaced multimedia data, a motion estimator configured to generate motion information for the selected frame, and a deinterlacer configured to deinterlace fields of the selected frame and form a progressive frame corresponding to the selected frame based on the spatio-temporal information and the motion information.

    摘要翻译： 本发明包括用于处理多媒体数据以从隔行帧数据生成渐进帧数据的装置和方法。 一方面，一种处理多媒体数据的方法包括为所选择的隔行多媒体数据帧生成空间 - 时间信息，产生所选择的帧的运动信息，以及基于时空信息和运动的所选帧的去隔行字段 信息以形成与所选帧相关联的逐行帧。 在另一方面，一种用于处理多媒体数据的装置可以包括空间滤波器模块，该空间滤波器模块被配置为生成所选择的隔行多媒体数据的帧的时空信息，被配置为生成所选择的帧的运动信息的运动估计器，以及被配置为去隔行的解交错器 并且基于时空信息和运动信息形成对应于所选择的帧的渐进帧。