A method of labeling single-sided point cloud model
A point cloud model and model technology, applied in interdisciplinary fields, can solve the problems of repeated definition of labeling areas, unsatisfactory labeling effects, scattered targets, etc.
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[0050] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0051] A method for labeling a one-sided point cloud model, specifically according to the following steps:
[0052] Step 1, point cloud model scene division
[0053] Divide the point cloud model into scenes, and construct a lattice model based on octree;
[0054] Specifically, use the following steps to divide the scene with the point cloud model, and build a grid model based on the octree:
[0055] Step 1.1, determine the threshold of the octree, calculate the covariance matrix, eigenvalue, and eigenvector of the point cloud model, and then obtain the overall trend of the point cloud model according to the principal component analysis method;
[0056] Step 1.1.1, taking the coordinates of each data point in the point cloud model as the three dimensions of the data point, then the three-dimensional matrix of the point cloud model is:
[00...
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