H.264变换编码及量化策略分析

Strategy Analysis of Transform and Quantization in H.264

H.264采用4×4的整数变换替代通用的8×8DCT变换,并将其融合在量化过程中,有效降低了变换算法的复杂度和运算量,避免了逆变换的失配问题。对H.264变换编码及量化策略进行了详细的分析,给出了其具体的实现过程。

Replaced 8×8DCT by using 4×4 integer transform in H.264, and which a scaling multiplication is integrated into the quantization to reduce the computational complexity and avoid inverse transform mismatch problem. The transform coding and quantization of H.264 is analyzed in detail, the concrete process of realization is given.