Abstract
In photogrammetry and remote sensing, image matching is a basic and crucial process for automatic DEM generation. In this paper we presented a image relaxation matching method based on feature points. This method can be considered as an extention of regular grid point based matching. It avoids the shortcome of grid point based matching. For example, with this method, we can avoid low or even no texture area where errors frequently appear in cross correlation matching. In the mean while, it makes full use of some mature techniques such as probability relaxation, image pyramid and the like which have already been successfully used in grid point matching process. Application of the technique to DEM generaton in different regions proved that it is more reasonable and reliable.
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Funded by the Open Research Fund Program of the Geometics and Applications Laboratory, Liaoning Technical University (No. 2004010).
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Shunyi, Z., Zuxun, Z. & Jianqing, Z. Image relaxation matching based on feature points for DSM generation. Geo-spat. Inf. Sci. 7, 243–248 (2004). https://doi.org/10.1007/BF02828546
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DOI: https://doi.org/10.1007/BF02828546