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Proceedings Paper

A Fiber Optic/CCD System For Automated Capture Of Drawings
Author(s): Michael R. Molnar; Thomas A. Booth
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Paper Abstract

We discuss the development of a unique optical system intended for capturing drawings to be used in CAD systems. The scanhead consists of two linear rows of optical fiber; one row provides illumination to the drawing surface being scanned, while the other adjacent row transmits the scattered light to a CCD camera for sensing. The analog video signal from the camera is thresholded to binary black/white, noise filtered, and compacted into run-length-coded format for storage as a raster file. The drawing is sequentially stepped and scanned to capture the entire drawing. Our work shows that this system has some unique optical features. In particular, it has characteristics of a transmissive system rather than reflective as might first be expected.

Paper Details

Date Published: 8 November 1984
PDF: 7 pages
Proc. SPIE 0501, State-of-the-Art Imaging Arrays and Their Applications, (8 November 1984); doi: 10.1117/12.944674
Show Author Affiliations
Michael R. Molnar, Skantek Corporation (United States)
Thomas A. Booth, Skantek Corporation (United States)

Published in SPIE Proceedings Vol. 0501:
State-of-the-Art Imaging Arrays and Their Applications
Keith N. Prettyjohns, Editor(s)

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