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feature detection and image matching algorithm

what are the algorithms used in feature detection and image matching?

Hi Ahmed,

Pix4Dmapper is not an open source software and we thus do not disclose the precise nature of the algorithms used. To have a better idea of what is going on behind the scenes, you can have a look at our scientific white papers on this page: https://support.pix4d.com/hc/en-us/articles/360000235026-Advanced-knowledge-Scientific-white-papers

Have a great day!