Three-dimensional shoe last rebuilding method based on scanning and inputting

Abstract

The invention discloses a three-dimensional shoe last reconstruction process based on the scanning input, which comprises scanning a last by a three-dimensional scanner, generating a point cloud data model through the computer data processing, conducting the pre-processing for the point cloud data model to obtain an initial shoe last model, carrying out the automatic character identification, generating all sub face sheets of the shoe last through the surface slicing technology, stitching all the sub face sheets to form the surface of the whole shoe last, thereby gaining the shoe last model after the reconstruction. The invention transforms the shoe last data into a grid model after the point could processing, automatically obtains each character point and each character line of the shoe last through the automatic character identification technology, and eliminates the problems brought by the losses or damages of original character information files. The position with larger surface curvature change is a difficult point to generate a curved surface in the process of generating curved surface of the shoe last, and the surface slicing technology can be adopted to reduce the difficulty of curved components, and sub face sheets in different regions are adopted with appropriate curvature reconstruction methods, thereby guaranteeing the surface accuracy of the shoe last model.

Description

technical field [0001] The invention relates to a method for modeling a shoe last model, in particular to a three-dimensional shoe last reconstruction method based on scanning input. Background technique [0002] Shoe last design and production occupy a prominent position in the shoemaking process. Shoe last CAD technology restricts the development process of the entire shoemaking CAD system and is the bottleneck technology for the application of shoemaking CAD technology. At present, the development status of shoemaking CAD technology is mainly aimed at the research on the design of general shoe lasts, and there are few researches on personalized shoe lasts. In the existing three-dimensional shoe last design, the curved surface shape is mainly constructed through the characteristic lines of the foot shape and the characteristic lines, so as to make the shoe last. This kind of shoe last constructed by curved surface has a certain difference with the shape of the foot, and c...

AI Technical Summary

Problems solved by technology

This kind of shoe last, which is constructed by curved surface, has certain differences from the shape of the foot, and cannot achieve a very satisfactory effect. Therefore, a more suitable shoe last model modeling method that fits the shape of the foot is needed.

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