Stereo matching with weighted feature constraints for aerial images

作者：Xiao Xiongwu; Guo Bingxuan; Pan Fei; Shi Yueru

来源：2013 7th International Conference on Image and Graphics, ICIG 2013, China,Shandong,Qingdao, 2013-07-26 to 2013-07-28.

DOI：10.1109/ICIG.2013.118

• Accuracy Improvement
• GCP-SGM
• Ground control points
• Prior information
• Semi-global matching
• Stereo correspondences
• Stereo matching
• Weighted features

The stereo correspondence problem represents a great challenge in Photogrammetry. In recent years, the Semi-Global Matching (SGM) method proposed by Hirschmu¨ller et. al. is a promising approach for solving stereo matching problems in different applications and data sets, including aerial images. In this paper, a Ground Control Points based Semi-Global stereo Matching (GCP-SGM) method is proposed for aerial images. Ground Control Points are incorporated into the global energy function model in SGM to lessen matching ambiguities. Significant accuracy improvement is obtained by utilizing the prior information in the ground control points as soft constraints. Experimental results in real scenes show that when such prior information exists, the GCP-SGM method can effectively improve accuracy.

• 单位
  测绘遥感信息工程国家重点实验室