Fixed cameras cannot operate indoors as they require line of sight and intrude on internal construction processes. Therefore, they are mostly only used in the early stages of construction and lose their effectiveness when erected walls begin to obstruct their line of sight [6]. An in-depth investigation conducted in [6] found that internal construction sites are the area where cameras have the least impact due to line-of-sight obstruction. Unfortunately, this greatly affects the impact of current research on indoor vision-based progress monitoring techniques. Unmanned aerial vehicles (UAVs), equipped with several sensors and a camera, can be a solution to this problem as they provide quick, easy and economical access to high-resolution images of different locations of complex indoor construction sites. The use of autonomous (or manually controlled) UAVs fully automates the data collection phase, reduces the need for regular and labor-intensive manual inspections, and thus significantly eliminates non-value-adding processes [7]. Furthermore, the cost, which previously proved to be the main obstacle to the practical implementation of cameras on internal construction sites [6], is significantly reduced as they are not required