ArticlePhotoacoustics2020
Full-frequency correction of spatial impulse response in back-projection scheme using space-variant filtering for optoacoustic mesoscopy.
Article in Photoacoustics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 16 citations in OpenAlex.
- Blind single image restoration for ring-array photoacoustic tomography system via physics-aided unsupervised learning.Photoacoustics · 2026Article
- Phase-coherent multi-sensor synthesis for enhanced photoacoustic imaging: a comprehensive framework for optimal sensor integration.Biomedical optics express · 2025Article
- Image restoration for ring-array photoacoustic tomography system based on blind spatially rotational deconvolution.Photoacoustics · 2024Article
- Improving photoacoustic imaging in low signal-to-noise ratio by using spatial and polarity coherence.Photoacoustics · 2022Article
- Image reconstruction for endoscopic photoacoustic tomography including effects of detector responses.Experimental biology and medicine (Maywood, N.J.) · 2022Article
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Authors and funding
6 authors at 5 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The fidelity and quality of reconstructed images in optoacoustic mesoscopy (OPAM) can be significantly improved by considering the spatial impulse response (SIR) of the employed focused transducer into reconstruction. However, the traditional method fully taking the SIR into account can hardly meet the data-intensive requirements of high resolution OPAM because of excessive memory and time consumption. Herein, a modified back-projection method using a space-variant filter for full-frequency correction of the SIR is presented, and applied to the OPAM system with a sphere-focused transducer. The proposed method can readily manage the large datasets of the OPAM and effectively reduce the extra time consumption. The performance of the proposed method is showcased by simulations and experiments of phantoms and biological tissue. The results demonstrate that the modified back-projection method exhibits better image fidelity, resolution and contrast compared to the common and weighted back-projection methods that are not or not fully accounting for the SIR.
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