Laser point cloud and aerial image integrated building three-dimensional modeling method
A laser point cloud and aerial image technology, applied in the field of three-dimensional modeling of buildings, can solve the problems of time-consuming, labor-intensive and uneconomical, and achieve the effect of simple operation, high degree of automation and good use effect.
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[0018] The technical solution of the present patent will be described in further detail below in conjunction with specific embodiments.
[0019] A three-dimensional modeling method of buildings integrating laser point cloud and aerial image, the specific steps are as follows:
[0020] (1) Use airborne laser equipment to obtain laser point clouds and aerial images of buildings. The lateral overlap of laser point clouds should reach 30%, the heading overlap of aerial images should reach 60%, and the lateral overlap should reach 30%. %;
[0021] (2) Produce high-precision digital elevation model DEM and digital orthophoto DOM products based on airborne laser equipment, and integrate the respective advantages of laser point cloud and aerial imagery in airborne laser equipment to perform high-precision modeling of buildings, making The three-dimensional electronic sand table of buildings; the digital elevation model DEM is based on the acquired laser point cloud data, using the re...
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