摘要： 基于灰度共生矩阵的思想分析光线空间数据特征，在此基础上提出一种基于主方向匹配的光线空间插值方法。实验结果表明，新的插值方法插值生成的光线空间与传统的线性插值方法和自适应滤波插值方法生成的光线空间相比在PSNR 上分别提高了3.44dB 和1.97dB。

关键词: 光线空间；自由视点电视；光线空间插值；主方向匹配

Abstract: The characteristics of ray space data are analyzed based on the idea of gray level co-occurrence matrix, and a new algorithm named main direction matching ray space interpolation is proposed. Experimental results show that the new scheme outperforms the traditional linear interpolation method and the adaptive filter interpolation method in interpolating ray space with more than 3.44dB and 1.97dB in PSNR respectively

Key words: Ray space; Free viewpoint television; Ray space interpolation; Main direction matching