The current paper aims at presenting multitemporal monitoring oftwo crop fields using close-range aerial photogrammetrictechniques with a combination of different sensors. A fixed-wing unmanned aerialvehicle was used to map the crops regularlyin 2016 and 2017. The goal ofthe following study isto show the experimental results of an enhanced keypoint number extraction of NIR and TIR ima... https://www.lightemupsequences.com/