MPEG-2视频反量化和IDCT的VLSI设计  

Very Large Scale Integrated Circuit Design of MPEG 2 Inverse Quantization and Inverse Discrete Cosine Transform

作　　者：惠新标[1] 叶楠[1] 郑志航[1] 

机构地区：[1]上海交通大学电子工程系,上海200030

出　　处：《上海交通大学学报》2000年第2期193-196,共4页Journal of Shanghai Jiaotong University

摘　　要：反量化（ＩＱ）和反离散余弦变换（ＩＤＣＴ）是ＭＰＥＧ－２ 中恢复帧内编码系数或差分系数的重要手段．设计了用于ＭＰＥＧ－２ ＭＰ＠ ＭＬ视频解码超大规模集成电路（ＶＬＳＩ）的ＩＱ 和ＩＤＣＴ电路结构，采用ＶＨＤＬ进行描述并通过模拟得以验证．采用全硬件实现的方法，并针对性地提出了相应的硬件电路结构设计，减少了电路规模以适应ＭＰＥＧ－２ＭＰ＠ ＭＬ视频较大的数据量，达到了实时解码的目的．Inverse quantization (IQ) and inverse discrete cosine transform (IDCT) are important operations in MPEG 2 decoding. The VLSI architecture of IQ and IDCT for MPEG 2 MP@ML video decoding were presented, architectures were described in VHDL and simulated. Hardware implement was adopted and some novel architectures were introduced for real time MPEG 2 MP@ML decoding.

关 键 词：MPEG-2 反量化 视频信号 VLSI IDCT 设计 

分 类 号：TN941.2[电子电信—信号与信息处理] TN470.2[电子电信—信息与通信工程]