Shooting location
The benchmark models struggle more with restoring outdoor scenes than indoor scenes. Approximately 33.3% of outdoor and 15.4% of indoor scenes include flares caused by natural sunlight in the UDC-VIT dataset. Moreover, sunlight-induced flares tend to be less severe indoors. For example, outdoor scenes with natural sunlight flares show severe flare, whereas indoor scenes with the same type of flare tend to be less severe. Notably, the flare on the glass window is subtle, caused by sunlight scattering off the glass rather than directly entering the camera. This understanding is crucial as it highlights the unique challenges of restoring outdoor scenes where direct sunlight is a significant factor. Consequently, all models face more significant difficulties restoring outdoor scenes than indoor scenes.
Visual comparison
