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Proceedings Paper

Real-time implementation of single-shot passive auto focus on DM350 digital camera processor
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Paper Abstract

With the introduction of high mega-pixel image sensors and large focal length lenses in today's consumer level digital still cameras, single-shot passive auto-focus (AF) performance in terms of speed and accuracy remains to be a critical issue among camera manufacturers. To address the AF performance issue, this paper covers the real-time implementation of a previously developed modified rule-based single-shot AF search method on the Texas Instruments TMS320DM350 processor. It is shown that a balance between AF speed and accuracy is needed to meet the real-time constraint of the digital camera system. Performance results indicate that this solution outperforms the standard global search method in terms of AF speed and accuracy.

Paper Details

Date Published: 5 February 2009
PDF: 8 pages
Proc. SPIE 7244, Real-Time Image and Video Processing 2009, 724408 (5 February 2009); doi: 10.1117/12.806183
Show Author Affiliations
Mark Gamadia, The Univ. of Texas at Dallas (United States)
Nasser Kehtarnavaz, The Univ. of Texas at Dallas (United States)

Published in SPIE Proceedings Vol. 7244:
Real-Time Image and Video Processing 2009
Nasser Kehtarnavaz; Matthias F. Carlsohn, Editor(s)

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