A method of calculating shoe upper spraying trajectory through 3D point cloud data

Abstract

The present invention proposes a method for calculating shoe upper spraying trajectory through 3D point cloud data, including: A: template establishment process; B: execution process; template establishment process includes the following steps: A1: Obtain the complete points of the upper through the 3D file of the upper Cloud image; A2: Create the initial spray trajectory on the complete point cloud image of the shoe upper; A3: Extract the initial spray trajectory image as a template image; the execution process includes the following steps: B1: Obtain the actual shoe upper image through the actual shoe upper; The features of the template image and the features of the actual shoe upper image are positioned to obtain the positioning data; B3: the template image is converted to the actual shoe upper image through the positioning data; B4: the converted template image and the actual shoe upper image are obtained through a matching algorithm A transformation matrix; B5: Transform the initial spraying trajectory into the space of the actual shoe upper image through the transformation matrix to obtain the actual trajectory; it has the advantages of low cost and high precision.

Description

technical field [0001] The invention relates to the technical field of 3D visual positioning, in particular to a method for calculating shoe upper spraying tracks through 3D point cloud data. Background technique [0002] In the traditional shoe industry, the spraying trajectory is manually drawn on the upper with a highlighter, and then the actual trajectory is obtained by taking an all-round picture of the spraying trajectory through a 3D camera. Finally, the actuator executes the actual trajectory on the upper. There are two problems in the scheme: 1. The spraying trajectory is required to be continuous and complete, but there are human factors in drawing the spraying trajectory manually, and it is impossible to guarantee that the spraying trajectory can meet the continuous and complete requirements every time; 2. At least three 3D cameras are required at the same time Only by working can the shoe upper be fully imaged to obtain the actual trajectory, and the cost of the ...

AI Technical Summary

Problems solved by technology

[0002] In the traditional shoe industry, the spraying trajectory is manually drawn on the upper with a highlighter, and then the actual trajectory is obtained by taking an all-round picture of the spraying trajectory through a 3D camera. Finally, the actuator executes the actual trajectory on the upper. There are two problems in the scheme: 1. The spraying trajectory is required to be continuous and complete, but there are human factors in drawing the spraying trajectory manually, and it is impossible to guarantee that the spraying trajectory can meet the continuous and complete requirements every time; 2. At least three 3D cameras are required at the same time Only by working can the shoe upper be fully imaged to obtain the actual trajectory, and the cost of the solution is high

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