公开(公告)号：US07386180B2

公开(公告)日：2008-06-10

申请号：US10770562

申请日：2004-02-04

申请人： Akira Sota ,  Katsumi Hoashi ,  Ryoji Yamaguchi

发明人： Akira Sota ,  Katsumi Hoashi ,  Ryoji Yamaguchi

IPC分类号： G06K9/36

CPC分类号： H04N19/44 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/61

摘要： An image signal reproduction apparatus and an image signal reproduction method that can reproduce video signals at high speed with stability. A skip decoding field counter is set on the basis of a factor by which the reproduction speed is multiplied and the number of fields included in one frame image. When decoding of coded data corresponding to one frame to be decoded is completed, it is judged whether the skip decoding field counter is larger than zero or not. When the counter is larger than zero, the number of fields corresponding to a picture to be skipped is subtracted from the counter, and when the picture to be skipped is I or P coded data, the decoding is instructed, while when the picture is B coded data, the skipping is instructed. These processes are repeated until the counter becomes 0 or smaller.

摘要翻译： 可以稳定地高速再现视频信号的图像信号再现装置和图像信号再现方法。 基于再现速度乘以的因子和包括在一帧图像中的场数来设置跳过解码字段计数器。 当解码对应于要解码的一帧的编码数据完成时，判断跳过解码字段计数器是否大于零。 当计数器大于零时，从计数器中减去与要跳过的图像相对应的场数，当要跳过的图像为I或P编码数据时，指示解码，而当图像为B 编码数据，指示跳过。 重复这些处理，直到计数器变为0或更小。

公开(公告)号：US5929939A

公开(公告)日：1999-07-27

申请号：US634490

申请日：1996-04-18

申请人： Akihiko Ohtani ,  Yoshifumi Matsumoto ,  Akira Sota ,  Katsuji Aoki ,  Hisato Yoshida ,  Masahiro Gion ,  Atsushi Ubukata

发明人： Akihiko Ohtani ,  Yoshifumi Matsumoto ,  Akira Sota ,  Katsuji Aoki ,  Hisato Yoshida ,  Masahiro Gion ,  Atsushi Ubukata

IPC分类号： H04N7/26 ,  H04N7/28

CPC分类号： H04N19/43 ,  H04N19/51

摘要： There is provided a correlation degree operation apparatus in which the search area is readily extensible, in which a high-speed process can be assured even though the search area is extended, and which can be formed in a simple arrangement. The search area memory stores the picture element data of a search area including ((m.times.M).times.L) candidate blocks. The correlation degree operation unit executes an operation of a degree of correlation between a reference picture block and each of the candidate blocks, with the use of picture element data supplied from the search area memory, this operation being executed by a pipeline process for each candidate block group composed of (M.times.L) candidate blocks. The search area memory has the function of supplying four picture element data at the same clock cycle. This enables the correlation degree operation unit to continuously execute the pipeline processes for the candidate block groups. It is therefore possible to continuously execute the operations of correlation degree between the reference picture block having (M.times.N) picture elements and ((m.times.M).times.L) candidate blocks.

摘要翻译： 提供了一种相关度操作装置，其中搜索区域是易于扩展的，其中即使搜索区域被扩展也可以确保高速处理，并且可以以简单的布置形成。 搜索区存储器存储包括（（m×M）×L）候选块的搜索区域的图像元素数据。 相关度操作单元通过使用从搜索区域存储器提供的图像元素数据来执行参考图像块和每个候选块之间的相关程度的操作，该操作由每个候选的流水线处理执行 由（MxL）候选块组成的块组。 搜索区存储器具有在相同时钟周期提供四个图像元素数据的功能。 这使得相关度操作单元能够连续执行候选块组的流水线处理。 因此，可以连续地执行具有（M×N）像素的参考图像块和（（m×M）×L）个候选块之间的相关度的操作。