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A 3D scanning point cloud data slice processing method for shoe sole contour

A technology of point cloud data and 3D scanning, applied in image data processing, details involving 3D image data, processing of 3D images, etc., can solve problems such as time-consuming

Active Publication Date: 2020-04-03
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using reverse engineering to process the raw data points to perform surface reconstruction or obtain the desired contour line will be very time-consuming

Method used

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  • A 3D scanning point cloud data slice processing method for shoe sole contour
  • A 3D scanning point cloud data slice processing method for shoe sole contour
  • A 3D scanning point cloud data slice processing method for shoe sole contour

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Below taking 42 yards of shoes sole as example, describe the embodiment of the present invention in detail in conjunction with accompanying drawing.

[0027] Step 1: Establish the coordinate system of the sole scan data

[0028] Such as figure 1 As shown, the coordinate system of the scanned data is established on the scanning table 3, with the center point O of the scanning table 3 as the origin, the length direction of the shoes, that is, the moving direction of the scanning table 3 along the screw rod 4 is the positive direction of the Y axis, Take the vertical upward as the positive direction of the Z axis, and the X direction is obtained by cross multiplying the Y direction and the Z direction.

[0029] Step 2: Get the 3D data of the sole

[0030] The sole is placed on the scanning table 3 along the Y direction in the length direction, and the sole is scanned along the positive direction of the Y axis. The laser 1 and the camera 2 scan the sole to obtain a three-...

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Abstract

The invention relates to a slicing processing method for three-dimensional scanning point cloud data of a shoe sole outline. A shoe sole is scanned by taking the length direction of the shoe sole as the three-dimensional scanning direction to obtain the three-dimensional data of the shoe sole, then slicing processing is conducted on the three-dimensional data, the slicing distance is adaptively regulated according to differences of widths, in the direction of being perpendicular to the scanning direction, among adjacent slices, and therefore the conditions that outline distortion is generated during follow-up fitting due to the fact that the slicing distance of shoe toe and shoe heel outline sections with the small curvature radius is too large, and the slicing speed is decreased due to the fact that the slicing distance of a shoe sole center outline section with the big curvature radius is too small are avoided. According to the method, local features of the shoe sole outline can be kept, the slicing speed is increased, calculation is easy and convenient, and shoe sole outline features can be reduced through the processed scanning data maximally.

Description

technical field [0001] The invention relates to a method for processing slices of three-dimensional scanning point cloud data of shoe sole contours. Background technique [0002] With the intensification of competition in today's shoe industry and the continuous improvement of people's requirements for the quality of footwear products, shoe manufacturers are constantly facing new challenges in terms of production technology. In the whole process of shoe processing, the glue spraying of the sole is an important link. It is an important factor affecting the service life of the shoes. The traditional manual spraying speed is slow and the quality is not high, and the toxic gas produced by the glue will affect the workers. Health hazard. The automation of sole gluing can not only improve production efficiency and quality, but also solve the disadvantages of traditional manual spraying. [0003] The automatic spraying of the sole needs to extract the trajectory for processing fr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/00
CPCG06T15/005G06T2200/04
Inventor 沈南燕吴耀赞李静童梁吴雨润
Owner SHANGHAI UNIV
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