From 4:40 you can see very well the uneven self-heating of the thermal sensor - bottom left corner is way hotter. Seems like it's a design flaw in this camera.
This video would be more informative if it started with simple stuff and then built up to the complex images shown. Starting with a picture of a plain blank plastered wall at uniform temperature would be quite revealing. Temperature uniformity is one of the most important aspects of these devices.
From 4:40 you can see very well the uneven self-heating of the thermal sensor - bottom left corner is way hotter. Seems like it's a design flaw in this camera.
This video would be more informative if it started with simple stuff and then built up to the complex images shown.
Starting with a picture of a plain blank plastered wall at uniform temperature would be quite revealing. Temperature uniformity is one of the most important aspects of these devices.