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Performance in close range systems
Author(s): J. W. C. Gates
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Paper Abstract

The extensions to new fields and the advances in speed and comprehensiveness in currently reported close range photogrammetry have been mainly derived by adaptation of classical methods. Information is extracted from sets of two dimensional recorded "images", often, nowadays, after increasingly sophisticated image processing. The improvement in accuracy and reliability of the resulting information, however extensive the image processing, is still limited by any physical shortcomings in the processing of the incoming photonic signals before and during the recording stage. As better analysis becomes possible, previously adequate techniques for acquisition of data may impose critical limitations. This contribution re-examines some of the fundamental aspects of the physical interactions of alternative photonic systems with object surfaces, optical systems and recording media, in their resulting effects on the resolution, accuracy and reliability of the recorded data and on the information derived from the records. Some examples are included of specific work that has established a basis for a better understanding of some often unsuspected possibilities for improvement of performance. A brief review will be included of current developments related to topics introduced in the author's paper in the Symposium in Stockholm in 1978

Paper Details

Date Published: 6 November 2017
PDF: 7 pages
Proc. SPIE 1395, Close-Range Photogrammetry Meets Machine Vision, 13953K (6 November 2017); doi: 10.1117/12.2294371
Show Author Affiliations
J. W. C. Gates, Univ. College London (United Kingdom)


Published in SPIE Proceedings Vol. 1395:
Close-Range Photogrammetry Meets Machine Vision
Armin Gruen; Emmanuel P. Baltsavias, Editor(s)

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