| 摘要 |
<p>A method of producing an enhanced resolution DEM that uses contour data to improve the accuracy of an original DEM is provided in which the original DEM is fused with an intermediate DEM interpolated from contours wherein the intermediate DEM has a resolution higher than the native resolution of the original DEM. The fusion is carried out in a manner that the contour information dominates only in areas where the contour density is significantly higher than the original DEM. The intermediate DEM preferably has a resolution several factors higher than the original DEM. The intermediate DEM may be produced by converting the original DEM to points followed by processing these points using a suitable interpolation tool such that the cells of the intermediate DEM and the modified DEM match substantially perfectly.</p> |
