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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Naivesum 128

Oct. 15, 2025, 11:07 a.m.  —  Public

💡 Naive sum with batch_size=128, invert_response=True and tonemap=True

Reconstruction

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 ↓
17.093 9.085 9.077 0.520 0.145 0.144 0.818 0.376 0.377

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