H．264中反变换反量化模块的硬件实现

Implementation of IQ/IDCT for H.264

对H.264标准中的IQ(反量化)/IT(反变换)部分的算法进行了分析,提出了一种可实现3种IT运算的电路结构。该电路结构包括一个统一的IT运算结构和一个4×4转置矩阵结构。在把反量化模块嵌入IT电路的数据读入模块之后,得到了一种包含了反量化和反变换的完整电路结构。

This paper analyzes the algorithm of IQ/IT in H.264. This paper not only proposes an architecture that can perform three types of inverse transform, but a 4x4 transpose as well. After embedding the inverse quantization circuit into the input module of the IT circuit, a complete architecture including the IQ and IT is obtained.