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    • 92. 发明申请
    • LOW COMPLEXITY ADAPTIVE FILTER
    • 低复杂自适应滤波器
    • WO2012024081A1
    • 2012-02-23
    • PCT/US2011/046238
    • 2011-08-02
    • QUALCOMM INCORPORATEDCHONG, In SukCHIEN, Wei-JungKARCZEWICZ, Marta
    • CHONG, In SukCHIEN, Wei-JungKARCZEWICZ, Marta
    • H04N7/26H04N7/50
    • H04N19/82H04N19/117H04N19/14H04N19/192H04N19/46H04N19/61H04N19/96
    • For a first series of video blocks, an encoder determines two filters, a first decoding filter that is to be transmitted to a decoder and a first interim filter that is not to be transmitted to the decoder. The first interim filter is used to determine which coded units of a second series of video blocks are to be filtered. After a decision is made as to which coded units of the second series of video blocks are to be filtered, the encoder determines a second decoding filter for the second series of video blocks and transmits the second decoding filter to the decoder. In addition to determining the second decoding filter, the encoder also determines a second interim filter, which the encoder uses to determine which coded units of a third series of video blocks are to be filtered. This process may repeat for many series of video blocks.
    • 对于第一系列视频块,编码器确定两个滤波器,即要发送到解码器的第一解码滤波器和不被传送到解码器的第一中间滤波器。 第一中间滤波器用于确定要过滤的第二系列视频块的哪些编码单元。 在对第二系列视频块的哪个编码单元进行滤波的决定之后,编码器确定用于第二系列视频块的第二解码滤波器,并将第二解码滤波器发送到解码器。 除了确定第二解码滤波器之外,编码器还确定第二中间滤波器,编码器用于确定第三系列视频块的哪些编码单元将被滤波。 对于许多系列视频块,此过程可能会重复。
    • 98. 发明申请
    • ADAPTIVE MOTION RESOLUTION FOR VIDEO CODING
    • 用于视频编码的自适应运动分辨率
    • WO2011103206A1
    • 2011-08-25
    • PCT/US2011/025113
    • 2011-02-16
    • QUALCOMM INCORPORATEDCHIEN, Wei-JungKARCZEWICZ, MartaCHEN, Peisong
    • CHIEN, Wei-JungKARCZEWICZ, MartaCHEN, Peisong
    • H04N7/26H04N7/36H04N7/50
    • H04N19/58H04N19/102H04N19/147H04N19/172H04N19/176H04N19/46H04N19/52H04N19/523H04N19/61
    • A video encoder may encode video data by adaptively selecting between one-eighth-pixel and one-quarter-pixel precision motion vectors, and signal the selected precision. In one example, an apparatus includes a video encoder to encode a block of video data using a one-eighth-pixel precision motion vector when use of the one-eighth-pixel precision motion vector is determined to be preferable for the block over a one-quarter-pixel precision motion vector, and to generate a signal value indicative of the use of the one-eighth-pixel precision motion vector for the block, and an output interface to output the encoded block and the signal value. A video decoder may be configured to receive the signal value and the encoded block, analyze the signal value to determine whether the block was encoded using one-eighth-pixel precision or one-quarter-pixel precision, and decode the block based on the determination.
    • 视频编码器可以通过在八分之一像素和四分之一像素精度的运动矢量之间进行自适应选择来对视频数据进行编码,并且将所选精度发信号。 在一个示例中,一种装置包括:视频编码器,当使用八分之一像素的精确运动矢量被确定为优于一块时,使用八分之一像素的精确运动矢量对视频数据块进行编码 并且生成指示使用该块的八分之一像素精度运动矢量的信号值,以及输出接口以输出编码块和信号值。 视频解码器可以被配置为接收信号值和编码块,分析信号值以确定块是使用八分之一像素精度还是四分之一像素精度进行编码,并且基于该确定对块进行解码 。
    • 99. 发明申请
    • STREAMING ENCODED VIDEO DATA
    • 编辑编码视频数据
    • WO2011053658A1
    • 2011-05-05
    • PCT/US2010/054334
    • 2010-10-27
    • QUALCOMM IncorporatedCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N7/24H04L29/06
    • H04N21/454H04L29/06176H04L65/4084H04N21/23439H04N21/44209H04N21/4516H04N21/4621H04N21/8455H04N21/8456H04N21/85406
    • A source device may signal characteristics of a media presentation description (MPD) file such that a destination device may select one of a number of presentations corresponding to the MPD file and retrieve one or more video files of the selected presentation. In one example, an apparatus for transporting encoded video data includes a management unit configured to receive encoded video data comprising a number of video segments and forms a presentation comprising a number of video files, each of the video files corresponding to a respective one of the video segments, and a network interface configured to, in response to a request specifying a temporal section of the video data, output at least one of the video files corresponding to the number of video segments of the requested temporal section. A client may request temporally sequential fragments from different ones of the presentations.
    • 源设备可以发送媒体呈现描述(MPD)文件的特征,使得目的地设备可以选择与MPD文件相对应的多个呈现中的一个,并且检索所选择的呈现的一个或多个视频文件。 在一个示例中,用于传送编码视频数据的装置包括:管理单元,被配置为接收包括多个视频片段的编码视频数据,并形成包含多个视频文件的呈现,每个视频文件对应于 视频片段和网络接口,被配置为响应于指定视频数据的时间部分的请求,输出与所请求的时间部分的视频片段的数量相对应的视频文件中的至少一个。 客户端可以从不同的演示文稿请​​求时间上顺序的片段。