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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Reconstruction Results

#
Name 

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 ↓
26
gQIR_SD35+HistMatched
19.529 14.157 12.834 0.863 0.724 0.679 0.237 0.370 0.404
https://arxiv.org/abs/2602.20417
27
srinivas kachavarapu
22.487 14.630 12.447 0.783 0.572 0.454 0.394 0.563 0.600
Anonymous.
28
Charles Liu SC
21.913 13.637 11.831 0.869 0.757 0.681 0.343 0.483 0.538
Anonymous.
29
Charles Liu SC6.1
21.780 13.615 11.826 0.860 0.746 0.684 0.361 0.496 0.549
Anonymous.
30
Charles Liu Gauv7
21.568 13.668 11.789 0.829 0.685 0.595 0.419 0.554 0.620
Anonymous.
31
gQIR_SD35
16.783 12.234 11.736 0.868 0.785 0.745 0.253 0.384 0.433
https://arxiv.org/abs/2602.20417
32
Stage 1 + Stage 2 v1
25.353 17.704 11.234 0.899 0.805 0.760 0.186 0.375 0.466
Anonymous.
33
Naivesum 512
16.885 11.637 10.859 0.508 0.222 0.117 0.727 1.108 1.163
💡 Naive sum with batch_size=512, invert_response=True and tonemap=True
34
Naivesum 256
17.292 11.340 10.439 0.516 0.215 0.119 0.779 1.181 1.227
💡 Naive sum with batch_size=256, invert_response=True and tonemap=True
35
Naivesum 1024
16.203 10.726 10.070 0.501 0.240 0.178 0.679 1.063 1.101
💡 Naive sum with batch_size=1024, invert_response=True and tonemap=True
36
Naivesum 128
17.093 9.560 9.235 0.520 0.212 0.153 0.818 1.240 1.284
💡 Naive sum with batch_size=128, invert_response=True and tonemap=True
37
FluxISP
16.260 11.578 9.088 0.746 0.492 0.332 0.293 0.781 1.088
 
38
Naivesum 64
16.365 7.792 7.351 0.519 0.230 0.194 0.852 1.295 1.352
💡 Naive sum with batch_size=64, invert_response=True and tonemap=True
39
Naivesum 32
15.110 7.576 7.260 0.507 0.265 0.223 0.890 1.308 1.351
💡 Naive sum with batch_size=32, invert_response=True and tonemap=True
40
Naivesum 16
13.572 7.439 7.189 0.486 0.285 0.226 0.939 1.304 1.345
💡 Naive sum with batch_size=16, invert_response=True and tonemap=True
41
Sampling issue
24.536 5.270 4.499 0.794 0.297 0.239 0.358 1.015 1.227
Anonymous.

Entries marked with 💡 have been submitted by the SPC team as baselines.

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