摘要
Exp-Golomb和CAVLC是H.264引入的新的熵编码形式,通过引入上下文的方式,减少编码码流,提高鲁棒性。该文提出一种熵编码的硬件结构,采用全0子块探测,双RAM结构,流水线技术,以及通过计算代替查找表的方法,加快编码过程,同时减少硬件的复杂度。FPGA综合结果显示,关键路径为11.449ns,系统时钟最高支持到87.346MHz。
This paper presents a high performance VLSI architecture design for H.264/AVC entropy encoding. In the design, a fast encode all-zeros block method is proposed to accelerate the encoding process. A double RAM method is designed to avoid the mistake of storage and be easy to control data as a block. A pipeline technology is proposed to erase the RAM and make the process faster. The synthesis result shows the proposed architecture can improve the performance of the CAVLC.
出处
《计算机工程》
CAS
CSCD
北大核心
2008年第6期229-232,共4页
Computer Engineering
基金
华为科技基金资助项目(YJCB2005019BA)
