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 64

Oct. 15, 2025, 11:07 a.m.  —  Public

💡 Naive sum with batch_size=64, 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 ↓
16.365 7.283 7.283 0.519 0.141 0.137 0.852 0.480 0.480

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