id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
gi-2542	Diamanti, Eleni; Georgopoulos, Andreas; Vlachaki, Fotini	Geometric documentation of underwater archaeological sites	2013	12	.pdf	application/pdf	3973	173	41	Keywords: underwater photogrammetry, trilateration, underwater camera calibration, vi- sualization, orthophotomosaics, 3D reconstruction, ancient shipwreck 1. Underwater camera calibration The accurate 3D reconstruction, as well as the pose estimation of an object, from images, requires the thorough knowledge of the intrinsic camera parameters i.e. focal length, principal point’s coordinates and lens distortion.	cache/gi-2542.pdf	txt/gi-2542.txt