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Proceedings Paper

Best angle to orient two intersecting lines
Author(s): Abdul A. S. Awwal; Walter S. Ferguson; Pete B. Shull
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Paper Abstract

Fiducials in the form of intersecting straight lines are used to align the target in the final target chamber of the National Ignition Facility of Lawrence Livermore National Laboratory. One of the techniques used to locate these lines is the Hough transform. When two lines intersect at a 90 degree angle, it is tempting to orient the lines to horizontal and vertical directions. There are other possible angles at which the lines may be oriented. One question that arises while designing the fiducials is whether there is a preferred angle or range of angles that leads to higher accuracy. This work attempts to answer this question through detailed computer simulation.

Paper Details

Date Published: 8 September 2006
PDF: 11 pages
Proc. SPIE 6310, Photonic Devices and Algorithms for Computing VIII, 63100S (8 September 2006); doi: 10.1117/12.682656
Show Author Affiliations
Abdul A. S. Awwal, Lawrence Livermore National Lab. (United States)
Walter S. Ferguson, Lawrence Livermore National Lab. (United States)
Pete B. Shull, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 6310:
Photonic Devices and Algorithms for Computing VIII
Khan M. Iftekharuddin; Abdul Ahad Sami Awwal, Editor(s)

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