Fig. 1
From: An RGB-TIR Dataset from UAV Platform for Robust Urban Traffic Scenes Semantic Segmentation
(a) and (b) Show the heatmap visualization results, (c) illustrates the “artifact” phenomenon in TIR images. (a) In low-illumination environments, thermal radiation information from the TIR modality (e.g., pedestrians on the sidewalk) dominates. (b) In contrast, the color information from the RGB modality (e.g., “white” vehicles) becomes dominant. (c) Due to sunlight exposure and vehicle occlusion, the ground temperature drops below the ambient temperature after the vehicle leaves, causing “artifact”. This “artifact” in the TIR modality is easily misinterpreted as a real vehicle.
