[1]梁盼,付永庆,陶宝泉.基于H.264的DCT变换系数解码的FPGA实现[J].应用科技,2010,37(02):20-23.[doi:10.3969/j.issn.1009-671X.2010.02.006]
 LIANG Pan,FU Yong qing,TAO Bao quan.Implementation of H.264 IDCT algorithm based on FPGA[J].yykj,2010,37(02):20-23.[doi:10.3969/j.issn.1009-671X.2010.02.006]
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基于H.264的DCT变换系数解码的FPGA实现(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第37卷
期数:
2010年02期
页码:
20-23
栏目:
现代电子技术
出版日期:
2010-02-05

文章信息/Info

Title:
Implementation of H.264 IDCT algorithm based on FPGA
文章编号:
1009-671X(2010)02-0020-04
作者:
梁盼付永庆陶宝泉
哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨 150001
Author(s):
LIANG PanFU YongqingTAO Baoquan
College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
H.264DCT逆量化FPGA
Keywords:
H.264 DCT inverse quantization FPGA
分类号:
TN911.7
DOI:
10.3969/j.issn.1009-671X.2010.02.006
文献标志码:
A
摘要:
根据H.264码流解码过程中整数DCT逆变换逆量化的算法原理, 优化设计出一种基于FPGA的新型解决方案.设计采用VHDL和C语言相结合的编程方式,其中源数据的获取和分析在NIOS II软核处理器中用C编程完成, 各高效算法则用硬件描述语言VHDL编程实现.说明了逆量化和逆变换的算法原理,各功能模块的设计流程和仿真结果.设计充分利用DCT算法的对称性,提出用高度并行结构来加快处理速度的方法.设计方案在保证运算精度的同时,结构简洁、运行速度快,可移植性强.
Abstract:
According to the algorithm principle of the H.264 integer DCT inverse transform and quantization, a new scheme is designed based on field programmable gate array (FPGA). Both VHDL and C language were selected as programming languages in the design. The acquisition and analysis of source data were controlled by NIOS II softcore processor programmed by C language. The hardware description language was used to complete efficient algorithm. The algorithm principle of inverse quantization and transform, the design flow of each functional module, and the result of simulation were introduced in detail in this paper. According to the symmetry of the DCT arithmetic, high parallel structure has been proposed to accelerate the system operation speed in the design. The final results show that the scheme not only can meet the demand of calculation precision, but also has concise structure, high operating speed and powerful transplantable capability.

参考文献/References:

[1]毕厚杰.新一代视频压缩编码标准-H.264/AVC[M].北京:人民邮电出版社,2005:227-230.
[2]国际电信联盟.ITU-T H.264建议书[EB/OL].[2009-04-12]. http://www.itu.int.
[3]MALVAR H S,HALLAPURO A,KAREZEWICZ M. Lowcomplexity Transform and Quantization in H.264/AVC[J].IEEE Transactions on Circuits and Systems for Video Technology,2003,13(7):598-602.
[4]ITU T.H.264/MPEG-4 Part 10 White Paper Transform& Quantization[EB/OL].[2009-06-10]. http://www.vcodex.com.
[5]Altera.Nios II software Developer’s HandBook[EB/OL].[2009-04-12]. http://www.altera.com.

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备注/Memo

备注/Memo:
作者简介:梁盼(1985-), 女,硕士研究生,主要研究方向:现代视频通信, E-mail:moqibijun@163.com.
更新日期/Last Update: 2010-03-16