多分辨率与视差梯度相结合的快速区域匹配  

The Fast Area-based Matching of Multiresolution Combined with Disparity Gradient

作　　者：邓祥[1] 

机构地区：[1]东南大学自动化学院,江苏南京210096

出　　处：《山西电子技术》2014年第6期9-11,14,共4页Shanxi Electronic Technology

摘　　要：针对传统区域匹配算法中存在大量冗余计算,提出了一种多分辨率与视差梯度相结合的快速匹配算法。首先通过均值采样得到低分辨率图像对,再通过改进的视差梯度约束算法进行匹配得到低分辨率图像的视差图,最后引入盒滤波思想指导原始视差图的生成。实验表明,该快速匹配算法相对于传统的区域匹配算法,在改善精度的同时,减少了三倍以上运算时间。In order to solve the traditional area-based stereo matching problem about redundant calculation, a fast matching algo- rithm of muhiresolution combined with disparity gradient is proposed. Low resolution images are firstly obtained by average sampling. Then the improved disparity gradient constraint algorithm is employed to obtain the disparity map of low resolution image. At last, the box filtering algorithm is employed to direct the generation of original disparity map. Compared with the traditional area-based matching algorithm, the experimental results show that the fast matching algorithm can reduce the computing time by more than three times when improving the accuracy.

关 键 词：多分辨率 视差梯度 区域立体匹配 盒滤波 搜索范围 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]