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    • 22. 发明申请
    • BUFFER MANAGEMENT IN VIDEO CODECS
    • 视频编解码器中的缓冲区管理
    • WO2012122169A1
    • 2012-09-13
    • PCT/US2012/027884
    • 2012-03-06
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N21/44H04N21/845H04N7/26
    • H04N21/44016H04N19/426H04N19/573H04N19/70H04N21/8455
    • In one example, a video decoder is configured to determine, from data associated with an open decoding refresh (ODR) picture of video data, an identifier for a previous picture of the video data, determine whether the previous picture is currently stored in a reference picture memory, and decode only data for pictures of the video data having display order values that are greater than a display order value of the ODR picture, when the previous picture is not stored in the reference picture memory. In another example, a video encoder is configured to encode an open decoding refresh (ODR) picture, determine a previously coded picture having a display order value less than a display order value of the ODR picture and having a temporal identifier value equal to zero, and signal syntax data for the ODR picture representative of an identifier of the determined previously coded picture.
    • 在一个示例中,视频解码器被配置为从与视频数据的开放解码刷新(ODR)图像相关联的数据确定视频数据的先前图像的标识符,确定先前图像是否当前存储在参考中 图像存储器,并且仅当前一图像未存储在参考图像存储器中时,仅解码具有大于ODR图像的显示顺序值的显示顺序值的视频数据的图像的数据。 在另一示例中,视频编码器被配置为对开放解码刷新(ODR)图像进行编码,确定具有小于ODR图像的显示顺序值的显示顺序值并且具有等于零的时间标识符值的先前编码图像, 以及用于表示所确定的先前编码图像的标识符的ODR图像的信号语法数据。
    • 23. 发明申请
    • CODING STEREO VIDEO DATA
    • 编码立体声视频数据
    • WO2012039936A1
    • 2012-03-29
    • PCT/US2011/050699
    • 2011-09-07
    • QUALCOMM INCORPORATEDCHEN, YingWANG, HongqiangKARCZEWICZ, Marta
    • CHEN, YingWANG, HongqiangKARCZEWICZ, Marta
    • H04N13/00H04N7/24
    • H04N19/597H04N13/161
    • In one example, a method of decoding video data comprising base layer data having a first resolution and enhancement layer data having the first resolution includes decoding the base layer data, wherein the base layer data comprises a reduced resolution version of a left view relative to the first resolution and a reduced resolution version of a right view relative to the first resolution. The method also includes decoding enhancement layer data comprising enhancement data for exactly one of the left view and the right view, wherein the enhancement data has the first resolution, and wherein decoding the enhancement layer data comprises decoding the enhancement layer data relative to at least a portion of the base layer data.
    • 在一个示例中,解码包括具有第一分辨率的基本层数据和具有第一分辨率的增强层数据的视频数据的方法包括对基本层数据进行解码,其中基本层数据包括相对于第一分辨率的左视图的缩小分辨率版本 第一个决议和相对于第一个决议的正确观点的减少分辨率版本。 该方法还包括解码增强层数据,其中包括用于左视图和右视图中的一个的增强数据,其中增强数据具有第一分辨率,并且其中解码增强层数据包括相对于至少一个 基层数据的一部分。
    • 26. 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。
    • 28. 发明申请
    • SIGNALING DEPTH RANGES FOR THREE-DIMENSIONAL VIDEO CODING
    • 用于三维视频编码的信令深度范围
    • WO2013074162A1
    • 2013-05-23
    • PCT/US2012/051139
    • 2012-08-16
    • QUALCOMM IncorporatedZHANG, LiCHEN, YingKARCZEWICZ, Marta
    • ZHANG, LiCHEN, YingKARCZEWICZ, Marta
    • H04N7/26H04N7/50
    • H04N19/61H04N19/30H04N19/597H04N19/70
    • In one example, a video coder, such as a video encoder or a video decoder, is configured to code a first set of one or more depth range values for a first set of video data, wherein the first set of one or more depth range values have respective first precisions, code a second set of one or more depth range values for a second set of video data, wherein the second set of one or more depth range values have respective second precisions different than the respective first precisions, and code at least a portion of the second set of video data using the second set of one or more depth range values. In this manner, the video coder may update precisions (e.g., numbers of bits) used to represent depth range values for coding multiview plus depth video data.
    • 在一个示例中,诸如视频编码器或视频解码器的视频编码器被配置为对第一组视频数据的第一组深度范围值进行编码,其中第一组一个或多个深度范围 值具有相应的第一精度,为第二组视频数据编码一个或多个深度范围值的第二组,其中一个或多个深度范围值的第二组具有与各自的第一精度不同的相应的第二精度, 使用第二组一个或多个深度范围值的第二组视频数据的至少一部分。 以这种方式,视频编码器可以更新用于表示用于对多视点加上深度视频数据进行编码的深度范围值的精度(例如,位数)。
    • 30. 发明申请
    • MOTION VECTOR PREDICTION IN VIDEO CODING
    • 运动矢量预测在视频编码
    • WO2012145663A1
    • 2012-10-26
    • PCT/US2012/034508
    • 2012-04-20
    • QUALCOMM INCORPORATEDCHEN, YingCHEN, PeisongKARCZEWICZ, Marta
    • CHEN, YingCHEN, PeisongKARCZEWICZ, Marta
    • H04N7/26
    • H04N19/513H04N19/105H04N19/147H04N19/176H04N19/46H04N19/52H04N19/597
    • Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.
    • 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法,其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器,其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时,该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放运动矢量预测器,其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。