基于相位与区域分割的视差估计算法

Disparity Estimation Algorithm Based on Phase and Region Segmentation

提出一种结合小波变换与图像分割的立体匹配算法。该算法利用双树复小波多通道提取立体像对带通相位信息作为匹配基元,求取初始视差场。针对单独通道提出一个相位匹配程度方程式,将视差计算归结为求解该方程的极大值。结合图像分割与视差平面拟合的方法对初始视差场进行修正,从而得到精度较高的密集视差图。实验结果表明,该算法结构简单,能快速有效地产生密集视差场。

This paper proposes a stereo matching algorithm combing wavelet transform and image segmentation. Multi-resolution phase acquired from Dual-Tree Complex Wavelet Transform（DTCWT） is used to get initial disparity map. For each scale, an equation is presented to measure the matching degree. Initial disparity map is amended into a high-resolution disparity map via color segmentation and disparity plane estimation. Experimental results show that the method is simple, and can achieve high accuracy and efficiency.