Intra texture prediction based on repetitive pixel replenishment
Kenichi Iwata, Ryoji Hashimoto, Seiji Mochizuki, Kiyoharu Aizawa · 2012
A new intra prediction scheme based on intra repetitive pixel replenishment is proposed. This scheme improves intra coding efficiency by generating adaptive texture according to an intra displacement vector that reduces prediction error for cyclic patterns and differential motion vector coding. Simulation results showed that the proposed technique improved coding efficiency by up to 2.5% BD-Rate (ΔBitrate in [%]) compared with version 3.0 of common software for High Efficiency Video Coding; encoding time was increased by 20%. The total improvement in intra coding efficiency with respect to existing H.264/AVC intra prediction was 5.0% on average and with a maximum of 10.3%. Because the proposed scheme did not need to estimate the decoder-side motion, there was no significant increase in decoding time.