Geodetski list, Vol. 51 (74) No. 3–4, 1997.
Original scientific paper
Analysis of Errors in Close-Range Photogrammetry (DTL-Method) Using Simulation
Tomislav Hengl
; Osijek, Hrvatska
Josip Križan
; Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Abstract
This paper is a by-product of application of close-range photogrammetry for dendrometric purposes. It is based on experiences acquired during the evaluation of computer program "TREE3D", intended for photogrammetric measurement and analysis of standing individual trees, using non-metric camera. Since the basic idea was to adjust photogrammetry for an economical and practical use, and automate most of the operations, the Method of Direct Linear Transformation was chosen. Despite the fact that this is the area of practical science, problems of random errors are simplified on universal level. Results of simulation confirm that accuracy of photogrammetric measurement, using this method, grows with the increase of: number and accuracy of estimation of control points, number of photos, accuracy of digitalization. It is determined that a specially important element in photogrammetric measurement is relation of disposition of control, object points and cameras.
Keywords
Hrčak ID:
291577
URI
Publication date:
31.12.1997.
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