双策略高效视频编码帧间模式快速决策算法

Fast Decision Algorithm of Inter-Frame Mode Using Double Methods for High Efficient Video Coding

为了减少编码复杂度,提出针对编码单元(CU)级和预测单元(PU)级的帧间快速算法.首先,利用当前编码块的3个空间邻近已编码块的深度信息,提前跳过某些CU的编码模式的检测.其次,利用当前编码块执行完Inter_2N×2N模式后,得出的残差块的纹理信息跳过某些PU的编码模式检测.实验结果表明:文中算法可以节省45.03%的编码时间;BD-BR(bj?ntegaard delta bit rate)造成1.49%的损失;算法能够很大程度节省编码时间;引入的率失真性能损失忽略不计.

In order to reduce coding complexity,we proposed inter frame fast decision algorithm for coding unit(CU)and prediction unit(PU).Firstly,using three spatially adjacent coding block depth information of the current coding block to skip certain CU encoding mode detection.Then,using the texture information of the residual block after performed the Inter_2N×2N mode to skip certain PU encoding mode detection.Experimental results show that the algorithm can save coding time 45.03%,while 1.49%of the loss of BD-BR(bj ntegaard delta bit rate).The algorithm proposed can also largely save coding time,and rate distortion performance loss is negligible.