基于HEVC的自适应插值滤波算法

为进一步提高自适应分像素插值算法的视频图像质量,降低计算复杂度,提出一种基于HEVC(high efficiency video coding)的自适应插值滤波算法.该算法首先在新一代视频编码标准H.265/HEVC框架下进行编码,以提高视频编码效率;其次通过滤波器系数对称优化,降低码流所需滤波器系数和解码计算的复杂度.复杂度分析结果表明,与其他算法相比,该算法乘法复杂度最高降低229%,加法复杂度最高降低245%.仿真结果表明,与其他算法相比,该算法对不同分辨率视频序列均具有较好的编码性能及鲁棒性.

Adaptive Interpolation Filter Algorithm Based on HEVC

In order to further improve video quality of adaptive sub\|pixel interpolation algorithm and reduce computational complexity, we proposed an adaptive interpolation filter algorithm based on HEVC (high efficiency video coding). Firstly, the algorithm was coded under the video coding framework of new coding standard H.265/HEVC to improve efficiency of video coding. Secondly, the filter coefficients demanded by code stream and the complexity of decoding computation were reduced by the symmetric optimization of filter coefficients. The results of complexity analysisshow that compared with other algorithms, the multiplicative complexity of this algorithm is reduced by 229%, and the addition complexity is reduced by 245%.Simulation results show that, compared with other algorithms, this algorithm has good coding performance and robustness for different resolution video sequences.