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PAT-Diffusion

Sparse-view reconstruction for photoacoustic tomography combining diffusion model with model-based iteration X Song, G Wang, W Zhong, K Guo, Z Li, X Liu, J Dong, Q Liu Photoacoustics, 100558 https://www.sciencedirect.com/science/article/pii/S2213597923001118

Forward and reverse processes of diffusion model.

<div align="center"><img src="https://github.com/yqx7150/PAT-Diffusion/blob/main/fig1.png"> </div>

Sparse reconstruction flowchart of PAT.

<div align="center"><img src="https://github.com/yqx7150/PAT-Diffusion/blob/main/fig2.png"> </div>

The process of reconstruction of the simulated blood vessels using the proposed method under 32 projections.

<div align="center"><img src="https://github.com/yqx7150/PAT-Diffusion/blob/main/fig4.png"> </div>

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