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100 
ORTHOPHOTOGRAPHY IN ASPECTS 
OP ECONOMICAL ANALYSIS 
Prof*Dr* Zbigniew S i t e k 
Head, Photogrammetric Section 
University of Mining and Metallurgy 
1 Cracow, Poland 
Biographical sketch 
Dr* Zbigniew Sitek obtained hia education and professional 
experience in Poland and Canada* Professor of photogrammetry 
at the University of Mining and Metallurgy in Cracow* He has 
published 70 technical papers and research reports and two 
books* Currently /fpr the second term/* President of Commission 
VI of ISP and Vice-President of Polish Society of Photogram 
me try* 
Abstract 
This paper discusses technical data conditioned by the quality 
of map compilation, i*e* assumptions concerning the construc 
tion principles of orthophoto instrumentation, assignment of 
produced orthophotos and required accuracy of orthophotos* 
The following economic parameters of the orthophoto production 
are also described * amortization, production continuity and 
•efficiency /width of slit and speed of scanning/, and relia 
bility of system performance* The time and cost of orthophoto 
production are analysed on Polish and foreign examples* 
Resume 
Oe rapport examine loa promisses toohniquos conditionnées par 
le caractère d elaboration de cartes c*t*dj , 
- Principes pour les bases de construction de 1 appareillage 
ortophotographiques, , 
- Adaptation de 1 appareillage pour e laboration des cartes 
demandées, % , 
-.Exigences se rapportant a precision des ortophotoplans* 
En plus, on a discute les suivants paramétres économiques de 
1'élaboration des ortophotoplans; 
- Amortissement, ' , # 
- Continuité et capacité de production /largeur de 1 ouverture 
et vitesse de scnning r 
- Certitude du fonctionnement de système* 
D apres les exemples polonais et etrangers on a fait 1 analyse 
du.temps et des frais de 1 élaboration des ortophotoplans*