摘要
介绍了H.264去块滤波的基本原理,引入一种快速去块滤波算法,在不影响图像质量的前提下节省约70%的滤波运算量.进一步分析滤波过程中BS的判决原则,结合图像的空间相关性,引入基于BS预判的去块滤波优化算法,在不影响图像质量的前提下使滤波耗时降低约75%,有效地提高了H.264解码器的运行速度.
This paper first analyzed the theory of deblocking filter system in H.264, and proposed a fast deblocking filter algorithm which can reduce almost 70% of the complexity in deblocking filter without influencing the picture quality. Analyzed the judging principle of BS in deblocking filter and image＇s spatial correlation, proposed an optimized BS pre-judging algorithm to reduce the computational complexity which reduced almost 75% of the complexity in deblocking filter without influencing the picture quality, and accelerated decoding process significantly for H.264 decoder.
出处
《湖南理工学院学报（自然科学版）》
CAS
2011年第4期36-39,共4页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
