Bridge vibration measurement method and system based on laser speckle digital image correlation method
By employing adaptive frequency domain processing and optical filtering techniques, the problems of noise interference and perspective distortion in the field bridge vibration measurement using the laser speckle digital image correlation method were solved, achieving high-precision and low-cost bridge vibration monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 史洪宇
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
Existing laser speckle digital image correlation methods suffer from problems such as optical noise interference, uneven speckle quality, and perspective distortion under complex field conditions, resulting in insufficient accuracy and efficiency in bridge vibration measurement and making it difficult to meet the high-precision monitoring needs of large-scale civil engineering projects.
By employing an adaptive frequency domain processing mechanism and optical narrowband filtering, and by calculating the combination relationship between speckle statistics and adjacent frame matching quality, image denoising parameters, resolution layering, and perspective distortion compensation are adaptively determined to achieve high-precision bridge vibration measurement.
It improves measurement accuracy and efficiency in complex environments, reduces noise interference, ensures high spatial resolution and high precision dynamic deformation monitoring, has strong adaptability, and reduces social costs.
Smart Images
Figure CN122416144A_ABST