# US 2025/0157005 A1 · Method for eliminating scratches in cross-sectional image of cable

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- Number: US 2025/0157005 A1
- Document ID: US20250157005A1
- Status: Published application
- Kind: A1
- Application number: 19/023,340
- Filed: 2025-01-16
- Published: 2025-05-15
- Earliest claimed: 2024-03-01
- Assignees: Zhejiang University of Science and Technology; Xinjiang Institute of Technology
- Applicants: Zhejiang University of Science and Technology; Xinjiang Institute of Technology
- Inventors: Aihua YU; Beiping HOU; Xiangdong LIU; Lina SHAN; Jing JIE; Wen ZHU; Gang LI; Guangxin ZHU; Shujie YANG
- Web page: https://patentgrep.com/patent/US20250157005A1

## CPC

- G06T 5/50: using two or more images, e.g. averaging or subtraction
- G06T 5/30: Erosion or dilatation, e.g. thinning
- G06T 5/70: Denoising; Smoothing
- G06T 7/0004: {Industrial image inspection}
- G06T 2207/20036: Morphological image processing
- G06T 2207/20221: Image fusion; Image merging
- G06T 2207/30108: Industrial image inspection
- G06T 2207/30168: Image quality inspection
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL

## Abstract

The present disclosure provides a method for eliminating scratches in a cross-section image of a cable, comprising: acquiring an original image of a cross-section of the cable, the original image having a first modality; performing, by a processor, dilation and erosion on the original image to obtain a processed image, the processed image having a second modality; fusing, by the processor, the original image and the processed image to obtain a fused image; processing, by the processor, the fused image to obtain a scratch eliminated image; and applying the scratch eliminated image in actual quality detection of the cable to improve accuracy of the quality detection. By introducing multimodal features, the method relieves the loss of image information. The method can keep the information of the original image as much as possible, and can significantly improve the accuracy of cable quality detection.

## Claims

### Claim 1

A method for eliminating scratches in a cross-sectional image of a cable, comprising:
acquiring an original image of a cross-section of the cable, the original image having a first modality;
performing, by a processor, dilation and erosion on the original image to obtain a processed image, the processed image having a second modality;
fusing, by the processor, the original image and the processed image to obtain a fused image;
processing, by the processor, the fused image to obtain a scratch eliminated image, wherein the fused image is taken as an input, a total variation (TV) algorithm is configured in the processor, and the TV algorithm is executed by the processor to eliminate the scratches; and
applying the scratch eliminated image in actual quality detection of the cable to improve accuracy of the quality detection.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the original image of the cross-section of the cable is acquired by an industrial camera.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the scratches are generated by sample cutting in a quality detection process of the cable.