Open AccessOverview of Available Open-Source Photogrammetric Software, its Use and Analysis
Author(s) -
Karol Bartoš,
Katarína Pukanská,
Janka Sabová
Publication year - 2014
Language(s) - English
Resource type - Journals
ISSN - 2411-2933
DOI - 10.31686/ijier.vol2.iss4.170
Subject(s) - photogrammetry , point cloud , computer science , software , orthophoto , laser scanning , geodetic datum , structure from motion , remote sensing , computer vision , computer graphics (images) , artificial intelligence , geography , laser , motion (physics) , optics , geodesy , physics , programming language
The current technological era provides a wide range of geodetic procedures and methods to document the actual state of objects on the Earth surface and at the same time course and shape of surface itself. Digital photogrammetry is one of these technologies, it allows the use of methods such as single-image photogrammetry, stereo photogrammetry (optical scanning), convergent imaging and SfM method (structure-from-motion) with final data in the form of point clouds, digital spatial models, orthophotos and other derived documents. Similar outputs can be obtained also by other technologies, mainly by terrestrial laser scanning, whilst each of the two technologies offers certain advantages and disadvantages. Especially purchasing and operating costs are one of the major drawbacks of laser scanning (while being an advantage of photogrammetry). In recent years, there has been a significant increase in development and creation of new, freely accessible (open-source) photogrammetric software, thus reducing these financial demands even more. The aim of this paper is to provide a basic overview of some of the most suitable open-source photogrammetric software and point out their strengths and weaknesses.