Advances in the quality of image data

trinder, j. c.; holstein, l. c.

Edited by 
J. C. TRINDER 
L. C. HOLSTEIN 
Additional Copies of these Proceedings are available prepaid from 
L. C. HOLSTEIN 
c/- School of Surveying 
University of New South Wales 
P.0. Box 1 
Kensington. N.S.W. 2033. 
AUSTRALIA. 
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ISSN 0252:823l