任意坐标系下的多块规则格网DEM拼接

Stitching DEM Grids in arbitrary coordinates

将高精度影像匹配技术用于具有重叠区域的规则格网DEM同名高程点提取,提出任意坐标系下的多块规则格网DEM高精度无缝拼接方法。方法的特点是可以在任意坐标系下(自由坐标系、绝对坐标系)对存在重叠区域的任意大小、任意数量和任意区域形状的规则格网DEM模块进行拼接,整体性地求解拼接参数,得到无几何错位的高精度DEM。通过实验,证明拼接方法的有效性和实用性。

Based on exacting matching in high accuracy, coordinates is presented whi method is that the stitching juncture and without malpo presented approach here and of corresponding points in overlap of neighboring DEM grids using image an approach of stitching numberless DEM grids seamlessly in arbitrary ch is not astricted by the shape and range of grids. The characteristic of the parameters can be solved simultaneously so the resultant DEM is glossy in the sition. Experiment data set with aerial image stereo pairs is tested by the the result is analyzed.