Electronic carrier tape box defect optical detection method based on multi-level feature region registration

By employing multi-level feature region registration and matrix difference operations, the problems of high false positive rate and low efficiency in electronic carrier box detection are solved, enabling adaptive detection of diverse box structures and improving detection accuracy and speed.

CN120876366BActive Publication Date: 2026-07-21SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Filing Date
2025-06-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies for detecting defects in electronic carrier boxes suffer from high false positive rates, low detection efficiency, and incompatibility with the diversity of box structures. In particular, they cannot effectively compensate for registration errors caused by vibration and elastic deformation.

Method used

A multi-level feature region registration method is adopted, which extracts the secondary registration region through the main feature points of the primary reference region. Combined with dynamic capture mechanism and vectorized matrix difference operation, the algorithm complexity is reduced, and adaptive compatibility and real-time detection of box structure are achieved.

Benefits of technology

It significantly improves the robustness and accuracy of detection, reduces the false detection rate, and increases the detection speed, making it adaptable to the needs of high-speed production lines with various materials and irregularly shaped box structures.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses an electronic carrier tape box defect optical detection method based on multi-level feature area registration, comprising the following steps: constructing a reference area; constructing a feature sampling area; generating a dynamic registration area; and performing difference operation on the dynamic registration area and the reference area. Through the multi-level feature area dynamic registration mechanism, the application can adaptively eliminate local position deviation of the carrier tape caused by material deformation and stamping vibration, and improve the pixel-level alignment accuracy of the difference operation. The application adopts area vectorization and matrix batch processing to reduce the time complexity and improve the processing speed, and can meet the detection requirements of high-speed production lines. Meanwhile, the application can also be compatible with electronic carrier tapes of various materials and box structures of various shapes. Therefore, the application has great practical engineering application value in reducing the work intensity of electronic carrier tape box defect detection, guaranteeing quality control in high-speed stamping complex scenes, improving defect detection efficiency and accuracy.
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