改进的H.264快速帧内预测选择算法

新一代的视频压缩标准H.264在视频数据压缩技术上取得了重大进展,但其算法复杂度明显提升,编码时间也较长。为降低H.264的计算复杂度和提高压缩效率,本文提出了一种基于变换域特性的变换域立体型（TDST）帧内预测快速选择算法,通过哈德码（Hadamard）变换的变换域特性对预测模式先进行选择,过滤掉大部分的预选模式,利...

Improved fast intra prediction for H.264 selection algorithm

A new generation of video compression standard H.264 in video data compression technology has made significant progress, but the complexity of the algorithm is obviously improved, the coding time is longer.In order to reduce the H.264 of the computational complexity and improve the compression efficiency, this paper presents a transform domain based on transform domain characteristics of three-dimensional （ TDST ） fast intra prediction algorithm, based on Hadamard transform （ Hadamard ） characteristics of the prediction model to choose, to filter out most of the preselected pattern, the use of adjacent and adjacent direction prediction model for the correlation of three-dimensional and intra mode prediction. The experimental results show that, compared with the full search algorithm, the algorithm effectively reduces the intra prediction mode selection when measured the number of modes, while the spatial prediction mode is improved, realizing macro block coding optimization.