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Fast wavelet-based photoacoustic microscopy

Abbasi, H ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1364/JOSAA.437862
  3. Publisher: The Optical Society , 2021
  4. Abstract:
  5. A novel photoacoustic microscopy (PAM) structure, based on Haar wavelet patterns, is proposed in this paper. Its main goal is to mitigate the PAM imaging resolution and thus the time of its sampling process without compromising the image quality. Owing to the intrinsic nature of wavelet transform, this structure collects spatial and spectral components simultaneously, and this feature speeds up the sampling process by 33%. The selection of these patterns helps in better control of required conditions, such as multi-resolution imaging, to guarantee adequate image quality in comparison to previous microscopic structures. Simulation results prove the superior quality of the proposed approach (about 47% better peak signal-to-noise ratio) compared to the latest structures in this field, achieving a high-resolution and high-quality image. © 2021 Optical Society of America. © 2021 Optica Publishing Group
  6. Keywords:
  7. Photoacoustic microscopy ; Signal to noise ratio ; Wavelet transforms ; Condition ; Haar-wavelets ; Imaging resolutions ; Intrinsic nature ; Microscopy imaging ; Sampling process ; Spectral components ; Speed up ; Structure-based ; Wavelets transform ; Image quality ; Controlled study ; Human ; Signal noise ratio ; Simulation ; Velocity ; Wavelet transform
  8. Source: Journal of the Optical Society of America A: Optics and Image Science, and Vision ; Volume 38, Issue 11 , 2021 , Pages 1673-1680 ; 10847529 (ISSN)
  9. URL: https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-38-11-1673