Motion magnification for video-based vibration measurement of civil structures: A review
Vibration measurement plays an important role in the inspection and monitoring of civil
structures. In recent years, the computer vision (CV)-based method has gained significant …
structures. In recent years, the computer vision (CV)-based method has gained significant …
Streamlined particle filtering of phase-based magnified videos for quantified operational deflection shapes
Non-contact optical measurements are commonly used in industrial and research domains
to obtain displacement measurements. This can be attributed to their noninvasive …
to obtain displacement measurements. This can be attributed to their noninvasive …
Accuracy of phase-based optical flow for vibration extraction
S Collier, T Dare - Journal of Sound and Vibration, 2022 - Elsevier
In this paper, phase-based optical flow done using the complex steerable pyramid is
evaluated to quantify upper and lower bounds of accurate pixel displacement extraction. The …
evaluated to quantify upper and lower bounds of accurate pixel displacement extraction. The …
Phase-based motion estimation in complex environments using the illumination-invariant log-Gabor filter
The phase-based motion estimation method is promising because the phase is sensitive to
the motion information embedded in the pixel values. Unfortunately, complex environments …
the motion information embedded in the pixel values. Unfortunately, complex environments …
Motion estimation from noisy data with unknown distributions using multi-frame phase-preserving denoising
Phase-based motion estimation method is promising due to its high resolution and wide
measurement range. Generally, noise exists in digital images and ruins the constant phase …
measurement range. Generally, noise exists in digital images and ruins the constant phase …
Two-dimensional motion estimation using phase-based image processing with Riesz transform
As a kind of photogrammetry technique, phase-based motion estimation (PME) has proven
to be a powerful image/video processing algorithm in the extraction of structural dynamics …
to be a powerful image/video processing algorithm in the extraction of structural dynamics …
Comparative assessment of a multitudinal piezo arrangement for non-destructive evaluation of construction steel: An experimental study
L Parida, S Moharana - Measurement, 2023 - Elsevier
Recently, sensor-based health diagnostic methods have attracted remarkable attention and
can be replaced with conventional nondestructive techniques due to their robustness …
can be replaced with conventional nondestructive techniques due to their robustness …
Holistically Nested Edge Detection and particle filtering for subtle vibration extraction
Extracting and analyzing subtle motion via optical sensing techniques is becoming a more
important research area within the vibration community. Computer vision approaches and …
important research area within the vibration community. Computer vision approaches and …
A novel marker for robust and accurate phase-based 2D motion estimation from noisy image data
Markers with high-contrast patterns are commonly used to improve the accuracy of image
intensity-based motion estimation techniques. It has been proven that the phase, which can …
intensity-based motion estimation techniques. It has been proven that the phase, which can …
Steerable pyramid with subpixel compensation for remotely measuring and magnifying dynamic vibration of moving objects
J Yang, WT Peter - Measurement, 2023 - Elsevier
Measuring vibration generated by a moving object is difficult because the accelerometers
must be mounted on the moving object. Moreover, the weight and damping ratio of the …
must be mounted on the moving object. Moreover, the weight and damping ratio of the …