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Proceedings Paper

An automatic focus algorithm for still and video camera applications using a new contrast measure
Author(s): J. Tang; X. Xu
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Paper Abstract

In this paper, we develop an auto-focus algorithm using a new sharpness function. Different from other sharpness functions used for auto-focusing in the past, the new defined sharpness function is more robust to noise, jitter of the camera. In order to test the algorithm, a modified hill climbing algorithm is used in the experiments to find the focused lens position and the experimental results show that the new auto-focus algorithm based on the new sharpness function has better performance.

Paper Details

Date Published: 30 October 2009
PDF: 5 pages
Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74984X (30 October 2009); doi: 10.1117/12.833926
Show Author Affiliations
J. Tang, Wuhan Univ. of Science and Technology (China)
X. Xu, Wuhan Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 7498:
MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications
Faxiong Zhang; Faxiong Zhang, Editor(s)

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