Method for extracting ground objects in tilt measurement scenario
A technology of tilt measurement and extraction method, applied in the field of feature extraction of tilt measurement scenes, can solve the problems of difficult to achieve accurate contour matching of features, inconsistent feature boundaries, and inability to seamlessly splicing, etc., and achieve high feature display accuracy and Rendering speed, high precision, neat and beautiful edges
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[0016] Such as figure 1 As shown in the method for extracting ground objects in the tilt measurement scene, the original tilt measurement scene uses tree-like storage structure data, and the whole scene is the root node, which is composed of multiple scene block sub-nodes, and each sub-node has its own triangular surface diagram The element set also contains several sub-nodes of higher-precision scene blocks, and the ground object extraction method of the tilt measurement scene includes the following steps:
[0017] (1) Set the object extraction area. The object extraction area is the range to be extracted. This area is composed of a number of boundary contour lines and a number of hollow contour lines. The boundary contour lines define the outer boundary of the extraction area, and the hollow contour lines Define the internal range boundary of the extraction area, which is used to exclude the part that does not need to be extracted in the area, and the area outside the cavity...
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