A filtering scheme for phase map of active tissue interface strain based on adaptive variational mode decomposition

Mehwish Khan; Ping Zhong; Yu Chen; Xin Tang; Muhammad Asif Imran; Rana Zubair

doi:10.1117/12.2655772

16 December 2022 A filtering scheme for phase map of active tissue interface strain based on adaptive variational mode decomposition

Mehwish Khan, Ping Zhong, Yu Chen, Xin Tang, Muhammad Asif Imran, Rana Zubair

Author Affiliations +

Proceedings Volume 12501, Seventeenth National Conference on Laser Technology and Optoelectronics; 125010J (2022) https://doi.org/10.1117/12.2655772
Event: Seventeenth National Conference on Laser Technology and Optoelectronics, 2022, Shanghai, China

Abstract

In this paper, a phase denoised digital speckle pattern interferometry (DSPI) method based on improved variational mode decomposition (IVMD) is proposed to reduce the noise interference in DSPI phase maps. The first step is to decompose the DSPI phase map using the IVMD method and obtain the optimal mode components. Then, an adaptively mode threshold method is proposed for processing the mode components based on the characteristics of the mode components. To obtain the denoised DSPI phase map, the denoised mode components are reconstructed. The results demonstrate that the proposed method is effective in filtering out noise interference and the peak signal-to-noise ratio (PSNR) is higher than that of other denoised methods.

Citation Download Citation

Mehwish Khan, Ping Zhong, Yu Chen, Xin Tang, Muhammad Asif Imran, and Rana Zubair "A filtering scheme for phase map of active tissue interface strain based on adaptive variational mode decomposition", Proc. SPIE 12501, Seventeenth National Conference on Laser Technology and Optoelectronics, 125010J (16 December 2022); https://doi.org/10.1117/12.2655772

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KEYWORDS

Image filtering

Digital filtering

Image processing

Filtering (signal processing)

Signal analyzers

Denoising

Image quality

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