Diaphragm width detection method and device, electronic equipment and readable storage medium
CN116228800BActive Publication Date: 2026-06-23SUZHOU JIESHENG TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SUZHOU JIESHENG TECH CO LTD
- Filing Date
- 2023-01-06
- Publication Date
- 2026-06-23
AI Technical Summary
Technical Problem
Existing online diaphragm width measurement technologies are susceptible to image noise, resulting in low measurement accuracy. Furthermore, increasing hardware resolution to improve accuracy leads to increased costs.
Method used
An orthogonal polynomial is used as the fitting model. The sub-pixel position of the cut edge is obtained through matrix operations. By combining gradient processing and grayscale value fitting, the sub-pixel position of the cut is determined, which improves the measurement accuracy and reduces the hardware cost.
Benefits of technology
It improves the accuracy and speed of diaphragm width measurement, is suitable for online inspection, avoids increased hardware costs, and enhances inspection accuracy and efficiency.
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Smart Images
Figure CN116228800B_ABST
Abstract
The application provides a diaphragm width detection method and device, electronic equipment and readable storage medium. The method comprises: performing gradient processing on a diaphragm gradient image to determine coarse positioning of a cut mark in the diaphragm gradient image; performing cutting on the diaphragm gradient image according to the coarse positioning of the cut mark to determine a cut mark image corresponding to each cut mark; determining a sub-pixel edge position of the cut mark in the cut mark image according to a gray value of the cut mark image; and determining a width of the diaphragm in the diaphragm gradient image according to the sub-pixel edge positions of adjacent cut marks. The application determines the width of the diaphragm in the diaphragm gradient image by calculating the sub-pixel edge position of the cut mark. Since the edge position of the cut mark is based on the sub-pixel level, the accuracy is higher, and the accuracy of the diaphragm width calculation is improved.
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