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Proceedings Paper

Hybrid image processing instantiation: II. Digital subsystem
Author(s): Chun-Shin Lin; Chiun-Hong Chien; Richard D. Juday
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Paper Abstract

We describe the digital subsystem of a hybrid vision system. The digital processing includes feature extraction, projection of an object's model through a camera model, space-domain correlation of the model feature with the observed feature map, and a constrained solution that minimizes errors in the fit between modeled and observed features by using a gradient search routine. The digital processing refines the coarse information from the optical processor. Examples will be shown of the degree to which the digital system can refine the precision of the optical estimate and how the optical pre-processing can provide a starting pose for the gradient search, thus minimizing the likelihood of the process's catching on a local minimum in the cost function.

Paper Details

Date Published: 8 July 1998
PDF: 9 pages
Proc. SPIE 3389, Hybrid Image and Signal Processing VI, (8 July 1998); doi: 10.1117/12.316538
Show Author Affiliations
Chun-Shin Lin, Univ. of Missouri/Columbia (United States)
Chiun-Hong Chien, Hernandez Engineering (United States)
Richard D. Juday, NASA Johnson Space Ctr. (United States)

Published in SPIE Proceedings Vol. 3389:
Hybrid Image and Signal Processing VI
David P. Casasent; Andrew G. Tescher, Editor(s)

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