Foot shape parameter obtaining method based on grid model and section lines
A cross-section line and model technology, which is applied in the field of foot shape parameter acquisition based on grid models and cross-section lines, to achieve the effects of reducing errors, improving reliability, and high accuracy and precision.
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[0121] The present invention will be further described below in conjunction with examples.
[0122] In the present invention, the point cloud data of the human foot shape is firstly processed into a grid to obtain a grid model, and the grid model is cut by using the reference Z plane to obtain a section line composed of discrete points on the plane, and the area of the section line is The main axis of the section line is extracted through analysis, and the local coordinate system of the grid model is established based on the main axis. Since the grid model expresses the surface shape of the human foot, five key parameters can be automatically extracted on the grid as long as the accuracy of the model is high enough. Among them such as figure 1 As shown, the grid model is a Delaunay triangular network to represent the topological relationship.
[0123] Among them, such as figure 2 As shown, the section line refers to the two-dimensional polyline formed by the discrete poi...
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