Efficient Lossless Compression Using H.264/avc Intra Coding and Pwsip Prediction

The growth of medical image processing increases the demand of lossless compression and it became a topic of interest. The basic formatting H.264/AVC contains inefficiency in compression ratio it should be improved to give better compression ratio. The proposed method use the concept of lossless compression in H.264/AVC category using pixel-wise spatial interleave prediction (PWSIP) and context adaptive interpolation (CAI).this scheme produces the interpolation in bi-directional and multidirectional modal. In addition this paper uses H.264/AVC basic prediction modes such as horizontal, vertical and mean modal, so totally 7 types of modes are used to increase the performance of H.264/AVC scheme. This proposed prediction scheme can be applied jointly with many previous methods and it is very friendly to many practical applications. The analysis section proves that their proposed method provides higher compression ratio in the lossless category. Keywords-H.264/AVC; PWSIP; lossless; intra coding; CAI;