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Proceedings Paper

Range-Selective Imaging
Author(s): W. Q. Nicholson
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Paper Abstract

Images of our three dimensional world are two dimensional in form. They are conveniently handled and observed in this form. However, in this form, the third dimension is lost. The angular relationship of objects in a scene relative to the imaging device are recorded but not their distance. We can obtain object distance by analysis of two sets of angular relationships imaged as a stereo pair. Distance information can also be obtained directly by propagation time measurement as in radar or laser ranging. Using a single detector these ranging devices are non-image producing. However, by sequential scanning in angle they can, in time, gather data to produce an image. Thus the stereo pair and the scanning radar provide us with two means to observe and record the three dimensions of our environment.

Paper Details

Date Published: 26 September 1965
PDF: 15 pages
Proc. SPIE 0003, Electronic Imaging Techniques, (26 September 1965); doi: 10.1117/12.970962
Show Author Affiliations
W. Q. Nicholson, Lear Siegler (United States)

Published in SPIE Proceedings Vol. 0003:
Electronic Imaging Techniques
Eugene B. Turner, Editor(s)

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