A Fast Interface Reconstruction Method for Frequency-Domain Synthetic Aperture Focusing Technique Imaging of Two-Layered Systems with Non-planar Interface Based on Virtual Points Measuring
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Nondestructive Evaluation"
DOI: 10.1007/s10921-020-00686-1
Abstract: Frequency-domain synthetic aperture focusing technique (SAFT), such as non-stationary phase shift migration (NSPSM), plays an essential role in the ultrasonic imaging of two-layered systems with non-planar interfaces. However, with NSPSM fast imaging under blind test… read more here.
Keywords: layered systems; two layered; systems non; non planar ... See more keywords
Target-less approach of vibration measurement with virtual points constructed with cross ratios
Sign Up to like & getrecommendations! Published in 2020 at "Measurement"
DOI: 10.1016/j.measurement.2019.107238
Abstract: Abstract For structures with distinguished edge features, a target-less approach of vibration measurement method based on stereo vision system is proposed in this paper. The edge is precisely identified through skeleton thinning, and then the… read more here.
Keywords: approach vibration; less approach; points constructed; virtual points ... See more keywords