Quantization Scheme of a Video Encoder Based on General DSP
Wenyi Wang · Jisuanji gongcheng · 2005
Considering the traits of a DSP, an optimal quantization matrix is constructed, which can realize one-step quantization by substituting shift for division. Meanwhile, this scheme uses different quantization strategies according to the differences of the types of video blocks to be coded, and avoids the loss of the quality of images with the unified quantization. Experiments show that this scheme can obviously improve the efficiency of quantization, and subjective and objective quality of images coded as well.