公开(公告)号：US08295633B2

公开(公告)日：2012-10-23

申请号：US11696667

申请日：2007-04-04

申请人： Lee Sangkeun ,  Yeong-Taeg Kim

发明人： Lee Sangkeun ,  Yeong-Taeg Kim

IPC分类号： G06K9/40

CPC分类号： H04N19/117 ,  H04N19/154 ,  H04N19/86

摘要： A system and method that adjusts the strength of a de-blocking filter to remove block artifacts in compressed video is disclosed. Block artifacts are associated with the block-based image/video compression techniques. The block artifacts deteriorate the quality of compressed image and video, especially at low bit rates. A de-blocking method estimates the strength of the block artifacts at each block boundary either directly from the MPEG decoder or from a measurement process or both, and adjusts the de-blocking parameters accordingly. An additional block content analysis improves the performance of the overall de-blocking process.

摘要翻译： 公开了一种调整解块滤波器的强度以去除压缩视频中的块伪影的系统和方法。 块伪影与基于块的图像/视频压缩技术相关联。 块伪像恶化了压缩图像和视频的质量，特别是在低比特率下。 解块方法直接从MPEG解码器或测量过程或两者估计每个块边界处的块伪影的强度，并相应地调整去阻塞参数。 额外的块内容分析改进了整体解块过程的性能。