Blind structure polarization modulation infrared thermal wave super-resolution imaging detection system and method

By employing pulse compression time-domain modulation, structured light spatial modulation, and polarization modulation techniques, the limitations of infrared thermal imaging detection systems in improving resolution have been overcome, enabling efficient detection of minute defects and complex edge defects, and making it applicable to a variety of materials.

CN121784081AActive Publication Date: 2026-04-03QINGDAO UNIV OF SCI & TECH
7 Cites 0 Cited by

Patent Information

Application Number
CN202511899286.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-16
Publication Date
2026-04-03
Estimated Expiration
2045-12-16

AI Technical Summary

Technical Problem

Existing infrared thermal imaging detection technology is limited in terms of resolution improvement, making it difficult to effectively detect minute defects and complex edge defects, especially for materials with poor thermal conductivity and electrical conductivity.

Method used

By employing pulse compression time-domain modulation, structured light spatial modulation, and polarization modulation techniques, the spatial resolution of infrared thermal imaging detection is improved through image reconstruction of the instantaneous phase difference between thermal wave signals and linear frequency modulation signals under different spatial polarization phases.

Benefits of technology

This invention improves the spatial resolution of the infrared thermal imaging detection system, resulting in faster detection speed, higher detection efficiency, and significant image reconstruction effects. It is applicable to a variety of materials.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention belongs to the technical field of infrared thermal wave imaging, and particularly relates to a blind structure polarization modulation infrared thermal wave super-resolution imaging detection system and method, and the system comprises an infrared camera, a processor, a signal generator, a power amplifier, a semiconductor laser, and a structured light modulator. A super-resolution detection image is reconstructed through instantaneous phase difference images of thermal wave signals and linear frequency modulation signals under different spatial polarization phases, and the spatial resolution of infrared thermal wave imaging for detecting tiny defects and complex edge defects is improved.
Need to check novelty before this filing date? Find Prior Art