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Analogue, Analytical and Digital Photogrammetric Workstations: Practical Investigations of Peformance
Author(s) -
Walker A. S.
Publication year - 1995
Publication title -
the photogrammetric record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.638
H-Index - 51
eISSN - 1477-9730
pISSN - 0031-868X
DOI - 10.1111/0031-868x.00002
Subject(s) - photogrammetry , triangulation , workstation , orientation (vector space) , computer science , selection (genetic algorithm) , pixel , computer vision , engineering drawing , computer graphics (images) , artificial intelligence , geography , engineering , cartography , mathematics , geometry , operating system
Prospective customers often request information on the accuracy of digital photogrammetry. Suitable data have been scarce, so Leica has begun a programme of internal tests. These are neither comprehensive nor necessarily representative of other suppliers' equipment, but several experienced operators and sets of imagery are being used and the results do provide general guidelines. A selection of analogue, analytical and digital workstations is being tested, together with scanners giving different pixel sizes. The early stages of the work are reported here. The tests include interior and exterior orientation of individual stereomodels followed by measurement of check points. Subsequent stages, covering DTMs, orthophotographs, mosaics and aerial triangulation, are planned.