A parametric non-linear algorithm for contrast based auto-focus

Automatic estimation of the lens position that provides the sharpest image given a subject scene is known as auto-focus. In this paper a new passive contrast based auto-focus algorithm for digital still and video cameras is proposed. The solution originates in the parametrization of NIP (Non-linear...

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Bibliographic Details
Published in:2011 IEEE International Conference on Intelligent Computer Communication and Processing pp. 267 - 271
Main Authors: Florea, C., Florea, L.
Format: Conference Proceeding
Language:English
Published: IEEE 01.08.2011
Subjects:
Cameras
Equations
Estimation
Image processing
Laplace equations
Lenses
Mathematical model
ISBN:1457714795, 9781457714795
Online Access:Get full text
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Summary:Automatic estimation of the lens position that provides the sharpest image given a subject scene is known as auto-focus. In this paper a new passive contrast based auto-focus algorithm for digital still and video cameras is proposed. The solution originates in the parametrization of NIP (Non-linear Image Processing) models . The closing property of these models allows superior performance especially for bright areas if compared with state of the art methods.
ISBN:1457714795
9781457714795
DOI:10.1109/ICCP.2011.6047879