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H.264中二进制算术编码的硬件实现
引用本文:陈传东,陈新. H.264中二进制算术编码的硬件实现[J]. 现代电子技术, 2007, 30(22): 48-50
作者姓名:陈传东  陈新
作者单位:福州大学,物理与信息工程学院,福建,福州,350002
基金项目:福建省科技厅集成电路(IC)技术平台建设项目
摘    要:
H.264标准中的二进制算术编码算法复杂,用软件实现起来速度慢,编码一个信号需要多个时钟周期。结合硬件实现特点,对算法流程进行合理优化,采用流水线设计方法,电路结构采用Verilog HDL进行RTL级描述,在Synplify平台上进行FPGA综合,介绍了H.264中二进制算术编码的FPGA实现方案。编码速度达到1 b/cycle,工作频率达到75.7 MHz,完全可以应用于视频图像的实时编码中。

关 键 词:二进制算术编码
文章编号:1004-373X(2007)22-048-03
收稿时间:2007-05-23
修稿时间:2007-05-23

Hardware Realization of Binary Arithmetic Coding for H.264
CHEN Chuandong,CHEN Xin. Hardware Realization of Binary Arithmetic Coding for H.264[J]. Modern Electronic Technique, 2007, 30(22): 48-50
Authors:CHEN Chuandong  CHEN Xin
Affiliation:Physics and Information Engineering College, Fuzhou University, Fujian, 350002, China
Abstract:
The binary arithmetic coding in H.264 is complex and in a low speed realized by software,it needs much period of encoding a signal.By using pipeline design method,the working flow is optimized according to hardware realization.The architecture is described by Verilog HDL on the RTL level,and is synthesized and tested by FPGA.It can encode a binary symbol each cycle and can work at a speed of 75.7 MHz and can be used in the video compression system.
Keywords:H.264  CABAC  FPGA
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