Towards phase-based defect detection: A feasibility study in vibrating panels

Cosco, Francesco; Cuenca, Jacques; Desmet, Wim; Janssens, K.; Mundo, Domenico

doi:10.1016/j.jsv.2022.117196

Cited by 7 publications

(1 citation statement)

References 61 publications

(78 reference statements)

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“…Since then, the phase-based optical flow with complex steerable pyramids has gained widespread attention. Cosco et al [7] proposed using phase-based motion amplification as a non-destructive testing tool to detect and identify defects in vibrating panels. Sarrafi et al [8] combined phase-based motion estimation and motion amplification methods to estimate damage to wind turbine blades.…”

Section: Introductionmentioning

confidence: 99%

Phase-Based Optical Flow Method with Optimized Parameter Settings for Enhancing Displacement Measurement Adaptability

Peng,

Liu,

Wang

et al. 2024

OJAppS

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To enhance the applicability and measurement accuracy of phase-based optical flow method using complex steerable pyramids in structural displacement measurement engineering applications, an improved method of optimizing parameter settings is proposed. The optimized parameters include the best measurement points of the Region of Interest (ROI) and the levels of pyramid filters. Additionally, to address the issue of updating reference frames in practical applications due to the difficulty in estimating the maximum effective measurement value, a mechanism for dynamically updating reference frames is introduced. Experimental results demonstrate that compared to representative image gradient-based displacement measurement methods, the proposed method exhibits higher measurement accuracy in engineering applications. This provides reliable data support for structural damage identification research based on vibration signals and is expected to broaden the engineering application prospects for structural health monitoring.

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Section: Introductionmentioning

confidence: 99%