针对“平行视”多视视频，提出了一种基于非标定摄像机仿射变换的块匹配算法。该算法采用Harris算子提取角点，依据特征跟踪法和线段仿射性质作为同名点匹配准则，利用同名点信息构造摄像机仿射变换矩阵，在此基础上实现视间块匹配。实验结果表明，该算法可有效提高“平行视”块匹配效果。

For un-calibrated parallel cameras,a new algorithm using affine transformation is proposed in this paper.This algorithm uses Harris operator to obtain corners,and determines corresponding image points with characteristic tracking method,and segments affine transform theory,and then constructs the affine matrix to make disparity block estimation.It has been proved that the algorithm can improve the result of the original motion estimation.