AVS去块效应滤波器的一种硬件优化设计  

An Optimized Hardware Implementation of Deblocking Filter for AVS Decoder

作　　者：黄友文[1] 刘钧彬[1] 

机构地区：[1]江西理工大学信息工程学院,江西赣州341000

出　　处：《江西理工大学学报》2011年第3期69-72,共4页Journal of Jiangxi University of Science and Technology

基　　金：江西省教育厅资助项目(GJJ10156);江西理工大学校级课题资助项目(jxxj10043)

摘　　要：根据AVS标准中的环路滤波算法特点提出了一种用于AVS解码芯片的去块效应滤波模块设计方案.该设计采用片内RAM对滤波参考数据进行缓存,大大减少了SDRAM的带宽占用.同时,对存储结构进行了合理的安排,将前一个宏块滤波数据写入SDRAM的操作和当前宏块的滤波操作并行处理,加快了滤波处理速度.综合和仿真结果表明,该设计处理速度高,达到了实时解码的需求.According to the arithmetic of loop filter in AVS audio video coding standard,an optimized hardware implementation of loop filter module for AVS decoder is proposed.On-chip RAM is used to cache reference data to reduce the bandwidth requirement of SDRAM.Due to the reasonably arranged storage structure of reference data,the data storing operation and the macroblock filtering operation can be done at the same time.As a result,filtering process is accelerated.The synthesis and simulation results indicate that the processing speed is high,and the design can meet the demand of the real-time video decoding.

关 键 词：AVS 视频解码 去块效应滤波器 

分 类 号：TN919.81[电子电信—通信与信息系统]