H.264-based Lossless Video Coding Using Adaptive Transforms
S. Takamura, Yoshiyuki Yashima · 2006
In this paper, we propose a reversible video coding method that combines an adaptive transform with H.264 tools. We extensively compare its lossless coding performance against three different reversible transforms and motion JPEG 2000. Experimental results show that for I picture coding, the proposed method performed slightly worse (2.0% lower compression ratio on average) than motion JPEG 2000 while outperforming the new H.264 FRExt standard (9.4 to 14%). For B and P pictures, our method offered the best performance with 0.3 to 6.2% gain over FRExt. Our method requires minimal modification to H.264 software and provides better performance than other existing methods.