Fast Mode Selective Algorithm of Intra Prediction for H.264/AVC
Yang Zhang · Computer Knowledge and Technology · 2008
Intra-prediction is an important feature in the new H. 264 video coding standard ,which raised the compression ratio,but in-crease the computing complexity as well. Intra-prediction coding includes 9 Intra_4×4 and 4 Intra_16×16 13 prediction modes .Based onthe analysis of the features of Intra_4×4 and Intra_16×16,a threshold and Integer Transform was proposed to save computation. Then,thealgorithms for intra-prediction mode decision was modified. The experimental results show that the proposed algorithm can increase thespeed of intra coding significantly with negligible loss of PNSR and a few increase of bite rate.