| Title |
DEM Estimation Using Two Stage Stereo Matching Method |
| Authors |
남창우(Nam, Chang-Woo) ; 우동민(Woo, Dong-Min) |
| Keywords |
stereo matching ; digital elevation map ; self-consistency ; cross-correlation score |
| Abstract |
A stereo matching has been an important tool for reconstructing three dimensional terrain. By using stereo matching technique, DEM(Digital Elevaton Map) can be generated by the disparity from a reference image to a target image. Generally disparity map can be evaluated by matching the reference image to the target image and if the role of the reference and the target are interchanged, a different DEM can be obtained. In this paper, we propose a new fusion technique to estimate the optimal DEM by eliminating the false DEM due to occlusion. To detect the false DEM, we utilize two measure of accuracy: self-consistency and cross-correlation score. We test the effectiveness of the proposed methods with a quantitative analysis using simulated images. Experimental result indicate that the proposed methods show 24.4% and 33.1% improvement over either DEM. |