Transmittance decrease and digital noise in the UDC setting
The camera sensor amplifies the desired signal and unwanted noise in low-light conditions. In the UDC setting, where the sensor is beneath the display panel, the transmittance decreases, leading to amplified noise. The P-OLED dataset, captured in a controlled setting, exhibits unrealistic noise and excessive transmittance decrease. Similarly, in the VidUDC33K dataset, the degraded frame’s noise level is somewhat lower than the ground truth. In contrast, UDC-VIT accurately shows actual transmittance decrease and digital noise resulting from quantizing digital image signals.
Visual comparison
| VidUDC33K (GT) |
UDC-VIT (GT) |
|
|
|
| VidUDC33K (Input) |
UDC-VIT (Input) |
|
|
|
| VidUDC33K (GT) |
UDC-VIT (GT) |
|
|
|
| VidUDC33K (Input) |
UDC-VIT (Input) |
|
|
|
| VidUDC33K (GT) |
UDC-VIT (GT) |
|
|
|
| VidUDC33K (Input) |
UDC-VIT (Input) |
|
|
|