This paper presents a fast three step algorithm for H.264 4×4 tra prediction. Motivated by the highly correlation of RD cost between different prediction direction, in each step of the algorithm, the proposed algorithm efficiently explores the neighborhood direction around the minimum one and thus skips other unlikely ones. Thus, the proposed algorithm can complete 4×4 intra prediction by only examining 6 modes instead of 9 modes in the full search algorithm. The simulation result shows that the proposed algorithm can maintain the similar PSNR quality to the full search algorithm with only about 1% bit rate increase.
|Number of pages||4|
|Journal||Proceedings - IEEE International Symposium on Circuits and Systems|
|State||Published - 1 Dec 2005|
|Event||IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan|
Duration: 23 May 2005 → 26 May 2005