Perceptual based adaptive frequency weighting for subjective quality improvement

Since different regions in picture have different sorts of texture, non-uniform quantization should be considered in macroblock level to meet the picture content. A parameterized frequency weighting and non-uniform macroblock level weighting scheme is proposed to improve the subjective quality of compressed video. This scheme is targeted to preserve texture details as well as region edge of video content in quantization process, which brings better subjective performance for the high definition video content coding.