Title :
An Efficient Statistical Intra-mode Prediction Method for H.264
Author :
Storey, Duane ; Nasiopoulos, Panos
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC
Abstract :
H.264 is a new codec that achieves roughly half of the bit-savings over MPEG2 and MPEG4 for a given quality. One of the features of H.264 is that allows intra frames to be predicted from previously encoded macroblocks in the same frame. This prediction is currently based on a simple algorithm that utilizes the encoded modes of the adjacent macroblocks. While this method is fast, it is often inaccurate, especially at high bitrates. In this paper a new adaptive statistical method is proposed that increases prediction accuracy by over 100% in certain situations. This improvement in accuracy results in the reduction of bits required for each intra frame
Keywords :
statistical analysis; video coding; H.264; MPEG2; MPEG4; adaptive statistical method; statistical intra-mode prediction method; Bit rate; Costs; Decoding; Encoding; MPEG 4 Standard; Prediction methods; Signal processing; Signal processing algorithms; Transform coding; Video compression; H.264; intra prediction; video coding;
Conference_Titel :
Signal Processing and Information Technology, 2006 IEEE International Symposium on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-9753-3
Electronic_ISBN :
0-7803-9754-1
DOI :
10.1109/ISSPIT.2006.270908