2024
DOI: 10.3390/e26070573
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Information Entropy Analysis of a PIV Image Based on Wavelet Decomposition and Reconstruction

Zhiwu Ke,
Wei Zheng,
Xiaoyu Wang
et al.

Abstract: In particle image velocimetry (PIV) experiments, background noise inevitably exists in the particle images when a particle image is being captured or transmitted, which blurs the particle image, reduces the information entropy of the image, and finally makes the obtained flow field inaccurate. Taking a low-quality original particle image as the research object in this research, a frequency domain processing method based on wavelet decomposition and reconstruction was applied to perform particle image pre-proce… Show more

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