What is the minimum and maximum number of images to create the thermal orthophoto?

The parameter used to define the quality of an acquisition is the longitudinal and transversal overlap. In other words, a frame must overlap with the previous (longitudinal overlap) by 85% and with the corresponding of the adjacent columns (transverse overlap), by 75%. In acquisitions with thermal imaging cameras these values are very high, that is 95% and 90%. The reason is the low resolution of thermal imaging cameras.