A Unified Forward/Inverse Transform Architecture for Multi-Standard Video Codec Design
A Unified Forward/Inverse Transform Architecture for Multi-Standard Video Codec Design
复制标题
用于多标准视频编解码器设计的统一正向/反向变换架构
DOI：
10.1587/transfun.e96.a.1534
复制
发表时间：
2013-07
影响因子：
0.5
通讯作者：
Zeng, Xiaoyang
中科院分区：
文献类型：
--
作者：
Shen, Sha;Shen, Weiwei;Fan, Yibo;Zeng, Xiaoyang
本文描述了一种统一的VLSI架构，其可以应用于MPEG-2/4、H. 264、VC-1、AVS和新兴的新视频编码标准HEVC（高效视频编码）中使用的各种类型的变换。一种新的设计命名为可配置的蝶形阵列（CBA）也提出了支持在这个统一的架构中的正变换和逆变换。Hadamard变换或4/8点DCT/IDCT在传统的视频编码标准中被使用，而16/32点DCT/IDCT在HEVC中被新引入。所提出的架构可以在一个统一的架构中支持所有这些转换类型。该设计采用了两级硬件共享（体系结构级和块级）。在体系结构层次上，正变换和反变换可以共享硬件资源。在块级，用于较小尺寸变换的硬件可以递归地被较大尺寸变换重用。用无乘法器MCM（MultipleConstantMultipleMultipleMultiplication）实现了4点或8点变换的乘法运算。为了减少硬件开销，16/32点DCT的乘法用ICM（输入复用常数乘法器）代替MCM或常规乘法器来实现。拟议的设计比之前的工作面积效率高出51%。据作者所知，这是第一个支持正向和反向4/8/16/32点的已发表工作
SUMMARY This paper describes a unified VLSI architecture which can be applied to various types of transforms used in MPEG-2/4, H.264, VC-1, AVS and the emerging new video coding standard named HEVC (High Efficiency Video Coding). A novel design named configurable butterfly array (CBA) is also proposed to support both the forward transform and the inverse transform in this unified architecture. Hadamard transform or 4/8-point DCT/IDCT are used in traditional video coding standards while 16/32-point DCT/IDCT are newly introduced in HEVC. The proposed architecture can support all these transform types in a unified architecture. Two levels (architecture level and block level) of hardware sharing are adopted in this design. In the architecture level, the forward transform can share the hardware resource with the inverse transform. In the block level, the hardware for smaller size transform can be recursively reused by larger size transform. The multiplications of 4 or 8-point transform are implemented with Multiplierless MCM (Multiple Constant Multiplication). In order to reduce the hardware overhead, the multiplications of 16/32 point DCT are implemented with ICM (input-muxed constant multipliers) instead of MCM or regular multipliers. The proposed design is 51% more area efficient than previous work. To the author’s knowledge, this is the first published work to support both forward and inverse 4/8/16/32-point
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DOI：
10.1109/tcsii.2005.858748
发表时间：
2006-03
期刊：
IEEE Transactions on Circuits and Systems II: Express Briefs
影响因子：
--
作者：
Chih-Peng Fan
通讯作者：
Chih-Peng Fan
DOI：
10.1109/icme.2012.7
发表时间：
2012-07
期刊：
2012 IEEE International Conference on Multimedia and Expo
影响因子：
--
作者：
Sha Shen;W. Shen;Yibo Fan;Xiaoyang Zeng
通讯作者：
Sha Shen;W. Shen;Yibo Fan;Xiaoyang Zeng
影响因子：
4.3
作者：
G. V. Wallendael;S. V. Leuven;J. D. Cock;F. Bruls;R. Walle
通讯作者：
G. V. Wallendael;S. V. Leuven;J. D. Cock;F. Bruls;R. Walle
DOI：
--
发表时间：
1988-11
期刊：
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
影响因子：
--
作者：
Y. Arai;T. Agui;M. Nakajima
通讯作者：
Y. Arai;T. Agui;M. Nakajima
DOI：
10.1109/icassp.1989.266596
发表时间：
1989-05
期刊：
International Conference on Acoustics, Speech, and Signal Processing,
影响因子：
--
作者：
C. Loeffler;A. Ligtenberg;G. Moschytz
通讯作者：
C. Loeffler;A. Ligtenberg;G. Moschytz