公开(公告)号：US07447370B2

公开(公告)日：2008-11-04

申请号：US11773297

申请日：2007-07-03

申请人： Woong-il Choi ,  Byeung-woo Jēon

发明人： Woong-il Choi ,  Byeung-woo Jēon

IPC分类号： G06K9/36

CPC分类号： H04N19/61 ,  H04N19/503 ,  H04N19/52

摘要： There is provided a method and apparatus for encoding and decoding motion vectors. Motion vectors are encoded through the steps of: (a) predicting motion vectors of a type identical to that of a present block and obtaining predictive motion vectors with respect to neighbor blocks having motion vectors of a type different from that of the present block among a plurality of neighbor blocks adjacent to the present block; (b) calculating a representative value of the motion vectors of the type identical to that of the present block from the motion vectors of the neighbor blocks and the predictive motion vectors; (c) calculating a difference value between the calculated representative value and the motion vector of the present block; and (d) encoding the calculated difference value. The motion vectors can be more efficiently encoded even when they refer to different reference pictures.

摘要翻译： 提供了一种用于对运动矢量进行编码和解码的方法和装置。 运动矢量通过以下步骤进行编码：（a）预测与当前块相同类型的运动矢量，并获得相对于具有不同于当前块类型的运动矢量的相邻块的预测运动矢量 与当前块相邻的多个相邻块; （b）从相邻块和预测运动矢量的运动矢量中计算与当前块相同类型的运动矢量的代表值; （c）计算所计算的代表值与当前块的运动矢量之间的差值; 和（d）对所计算的差值进行编码。 运动矢量即使在参考不同的参考图像时也能被更有效地编码。

公开(公告)号：US07486831B2

公开(公告)日：2009-02-03

申请号：US11773164

申请日：2007-07-03

申请人： Woong-il Choi ,  Byeung-woo Jēon

发明人： Woong-il Choi ,  Byeung-woo Jēon

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/61 ,  H04N19/503 ,  H04N19/52

摘要： There is provided a method and apparatus for encoding and decoding motion vectors. Motion vectors are encoded through the steps of: (a) predicting motion vectors of a type identical to that of a present block and obtaining predictive motion vectors with respect to neighbor blocks having motion vectors of a type different from that of the present block among a plurality of neighbor blocks adjacent to the present block; (b) calculating a representative value of the motion vectors of the type identical to that of the present block from the motion vectors of the neighbor blocks and the predictive motion vectors; (c) calculating a difference value between the calculated representative value and the motion vector of the present block; and (d) encoding the calculated difference value. The motion vectors can be more efficiently encoded even when they refer to different reference pictures.

摘要翻译： 提供了一种用于对运动矢量进行编码和解码的方法和装置。 运动矢量通过以下步骤进行编码：（a）预测与当前块相同类型的运动矢量，并获得相对于具有不同于当前块类型的运动矢量的相邻块的预测运动矢量 与当前块相邻的多个相邻块; （b）从相邻块和预测运动矢量的运动矢量中计算与当前块相同类型的运动矢量的代表值; （c）计算所计算的代表值与当前块的运动矢量之间的差值; 和（d）对所计算的差值进行编码。 运动矢量即使在参考不同的参考图像时也能被更有效地编码。