| Title |
Robust Terrain Reconstruction Using Minimal Window Technique |
| Authors |
김동규(Kim Dong-Gyu) ; 우동민(Woo Dong-Min) ; 이규원(Lee Kyu-Won) |
| Keywords |
stereo matching ; 3D ; DEM ; correlation window |
| Abstract |
A stereo matching has been an important tool for the reconstruction of 3D terrain. The current state of stereo matching technology has reached the level where a very elaborate DEM(Digital Elevation Map) can be obtained. However, there still exist many factors causing DEM error in stereo matching. This paper propose a new method to reduce the error caused by the lack of significant features in the correlation window The proposed algorithm keeps the correlation window as small as possible, as long as there is a significant feature in the window. Experimental results indicate that the proposed method increases the DEM accuracy by 72.65 % in the plain area and 41.96 % in the mountain area over the conventional scheme. Comparisons with Kanade's result show that the proposed method eliminates spike type of errors more efficiently than Kanade's adaptive window technique and produces reliable DEM. |