Digital Photogrammetry: Theory and Applications

TLDR: In this article, the main task of photogrammetry is to estimate the distance of a single image to a single point of interest using a single model and ortho images of the image.

Abstract: Introduction - Basic ideas and main task of photogrammetry Image sources - Analogue and digital cameras Short history of photogrammetric evaluation methods Geometric principles 1 - Flying height, focal length Geometric principles 2 - Image orientation Some definitions Length and angle units Included software and data - Hardware requirements, operating system Image material Overview of the software Installation Additional programmes, copyright, data General remarks Scanning of photos - Scanner types Geometric resolution Radiometric resolution Some practical advice Import of the scanned images Example 1 - A single model - Project definition Model definition Stereoscopic viewing Measurement of object coordinates Creation of DTMs via image matching Ortho images Example 2 - Aerial triangulation - Aerial triangulation measurement Block adjustment with BLUH Mosaics of DTMs and ortho images Example 3 - Some special cases - Scanning aerial photos with an A4 scanner Interior orientation without camera parameters Images from a digital camera An example of close-range photogrammetry A view into the future - Photogrammetry in 2020 Programme description - Some definitions Basic functions Aims and limits of the programme Operating the programme Buttons in the graphics windows File handling Pre-programmes Aerial triangulation measurement Aerial triangulation with BLUH Processing Display Appendix - Codes GCP positions for tutorial 2.