Fig. 9
From: HIT-UAV: A high-altitude infrared thermal dataset for Unmanned Aerial Vehicle-based object detection
The sample images taken at 80 meters with varying camera perspectives. At 30 degrees, objects in the far distance appear smaller due to the wider field of view. Conversely, at 50 degrees, objects appear larger. However, at 90 degrees, objects once again become smaller due to the reduction in the visible surface area of objects.
