公开(公告)号：US07154952B2

公开(公告)日：2006-12-26

申请号：US10620320

申请日：2003-07-15

申请人： Alexandros Tourapis ,  Shipeng Li ,  Feng Wu ,  Gary J. Sullivan

发明人： Alexandros Tourapis ,  Shipeng Li ,  Feng Wu ,  Gary J. Sullivan

IPC分类号： H04N7/12

CPC分类号： H04N19/00684 ,  H04N19/103 ,  H04N19/105 ,  H04N19/109 ,  H04N19/137 ,  H04N19/142 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70

摘要： Methods and apparatuses are provided for achieving improved video coding efficiency through the use of Motion Vector Predictors (MVPs) for the encoding or decoding of motion parameters within the calculation of the motion information in B pictures and/or P pictures. Certain exemplary methods and apparatuses selectively apply temporal and/or spatial prediction. Rate Distortion Optimization (RDO) techniques are also applied in certain methods and apparatuses to further help improve coding efficiency.

公开(公告)号：US20060072662A1

公开(公告)日：2006-04-06

申请号：US11275103

申请日：2005-12-09

申请人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

发明人： Alexandros Tourapis ,  Feng Wu ,  Shipeng Li

IPC分类号： H04N7/12 ,  H04N11/04 ,  H04B1/66 ,  H04N11/02

CPC分类号： H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/573 ,  H04N19/577

摘要： Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.

摘要翻译： 描述了改进的视频编码以对视频帧序列内的视频数据进行编码。 为此，参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。 基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。 可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。 模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。