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Large-area animal fur contour image cutting method based on radius increment constraint

A cutting method and large-area technology, applied in small raw hide/big raw hide/leather/fur treatment, small raw hide/big raw hide/leather/fur mechanical treatment, image analysis, etc. Poor working environment and other problems, to achieve the effect of solving the shortage of manpower and strong fault tolerance rate

Inactive Publication Date: 2022-04-29
SHAANXI UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0002] Fur cutting is the primary processing procedure in the fur tanning industry. However, due to the heavy smell of large raw hides and the poor working environment, each cut requires 4 to 8 knives. It is easy to be physically exhausted at work, so the work intensity is high, and there is a lack of new young labor force, which makes it difficult for enterprises to recruit workers
However, the automation level of the existing technology is low, so there is an urgent need for a method that can identify the characteristics of the cutting part of a large area of ​​animal fur and give the cutting path

Method used

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  • Large-area animal fur contour image cutting method based on radius increment constraint
  • Large-area animal fur contour image cutting method based on radius increment constraint
  • Large-area animal fur contour image cutting method based on radius increment constraint

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Embodiment Construction

[0059] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0060] Such as Figure 1-Figure 3 Shown, the concrete steps of invention are as follows:

[0061] Step 1: Image preprocessing;

[0062] A large animal fur is placed horizontally on a rubber plate, and the surface image of the fur is collected by an industrial camera directly above for preprocessing to obtain a binary contour image of the fur image. Its preprocessing flow chart is as follows Figure 4 As shown, the specific steps are as follows:

[0063] 1) Image denoising processing: use bilateral filtering to perform denoising processing on the acquired image, and remove various image noises generated during the image acquisition process;

[0064] 2) Image binarization processing: using the threshold segmentation method based on OTSU (maximum between-class variance method), the image is processed into a binarized image in which the foreground fur is whit...

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Abstract

The invention discloses a large-area animal fur contour image cutting method based on radius increment constraint, and the method comprises the steps: horizontally placing animal fur on a rubber plate for preprocessing, and obtaining a contour image of the image; establishing a corresponding coordinate system to obtain a centroid coordinate, setting the centroid coordinate as a new coordinate system origin, and establishing a new coordinate system; taking the origin of coordinates as the center, drawing a ray clockwise along the positive direction of the X axis, dividing the contour into n equal parts with the same angle, marking the intersection point of the ray and the edge contour point as an initial point, and defining the Euclidean distance between the initial point and the center of mass as the radius length of the contour; defining the ratio of the contour radius length of the current initial point to the contour radius length of the previous initial point as the contour radius growth rate of the current initial point, detecting the contour initial points in sequence, and removing non-conforming points; and the satisfied points are reserved, and the points are connected to form a final cutting route. According to the invention, animal fur images with different shapes and sizes can be cut, and corresponding cutting lines are provided.

Description

technical field [0001] The invention relates to the technical field of cutting large-area animal fur outline images, in particular to a cutting method for large-area animal fur outline images based on radius increment constraints. Background technique [0002] Fur cutting is the primary processing procedure in the fur tanning industry. However, due to the heavy smell of large raw hides and the poor working environment, each cut requires 4 to 8 knives. It is easy to be physically exhausted at work, so the work intensity is high, and there is a lack of new young labor force, which makes it difficult for enterprises to recruit workers. However, the automation level of the existing technology is low, so there is an urgent need for a method that can identify the characteristics of the cutting part of a large area of ​​animal fur and give the cutting path. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the object of th...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06T7/136G06T7/194G06T7/62G06T7/66C14B5/00
CPCG06T7/0004G06T7/11G06T7/136G06T7/194G06T7/62G06T7/66C14B5/00G06T2207/10004G06T2207/30124
Inventor 胡连华倪隽侯苗洪杰魏玄颖郑传辉刘涛廉柯
Owner SHAANXI UNIV OF SCI & TECH
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