https://video.osgeo.org/videos/watch/36c867ef-4084-4066-9c68-03eba84c74be In the past few decades, many kinds of UAS for image acquisition has been developing. But only high-cost commercial software could be used to image aligning and correcting. This problem caused cost-problem of UAS and complicated for many users. Nowadays, variety of software, not only commercial but also open-source, provides powerful image processing tool. There are so many software to support this processing, but only three popular programs are used to make a comparative study. The goal of this study is to compare the ease of use, overall accuracy and processing time of each software based on chunk of images from UAS. Sun, 31 May 2026 09:47:10 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.osgeo.org https://video.osgeo.org/lazy-static/avatars/de841c88-3a57-45ac-9eff-a00237356bfc.png https://video.osgeo.org/videos/watch/36c867ef-4084-4066-9c68-03eba84c74be All rights reserved, unless otherwise specified in the terms specified at https://video.osgeo.org/about and potential licenses granted by each content's rightholder.