Single Photon Challenge

Sacha Jungerman1, Atul Ingle2, Sotiris Nousias3, Mian Wei4, Mel White5, Mohit Gupta1

1University of Wisconsin - Madison, 2Portland State University, 3Purdue University,
4Carnegie Mellon University, 5US Naval Research Lab

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DiffBir refinement

Submitted: March 18, 2026, 9:58 p.m.  —  Anonymous

Mean PSNR ↑ 5% Low PSNR ↑ 1% Low PSNR ↑ Mean MS-SSIM ↑ 5% Low MS-SSIM ↑ 1% Low MS-SSIM ↑ Mean LPIPS ↓ 5% Low LPIPS ↓ 1% Low LPIPS ↓
29.776 22.118 20.354 0.936 0.837 0.776 0.149 0.354 0.535

Ground Truth
Reconstruction
Ground Truth
Reconstruction
Ground Truth
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Ground Truth
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Ground Truth
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