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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 13 — Jun. 21, 2010
  • pp: 14212–14224

An occlusion insensitive adaptive focus measurement method

Tarkan Aydin and Yusuf Sinan Akgul  »View Author Affiliations


Optics Express, Vol. 18, Issue 13, pp. 14212-14224 (2010)
http://dx.doi.org/10.1364/OE.18.014212


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Abstract

This paper proposes a new focus measurement method for Depth From Focus to recover depth of scenes. The method employs an all-focused image of the scene to address the focus measure ambiguity problem of the existing focus measures in the presence of occlusions. Depth discontinuities are handled effectively by using adaptively shaped and weighted support windows. The size of the support window can be increased conveniently for more robust depth estimation without introducing any window size related Depth From Focus problems. The experiments on the real and synthetically refocused images show that the introduced focus measurement method works effectively and efficiently in real world applications.

© 2010 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(110.6880) Imaging systems : Three-dimensional image acquisition
(150.5670) Machine vision : Range finding
(150.6910) Machine vision : Three-dimensional sensing

ToC Category:
Imaging Systems

History
Original Manuscript: April 15, 2010
Revised Manuscript: June 15, 2010
Manuscript Accepted: June 15, 2010
Published: June 17, 2010

Citation
Tarkan Aydin and Yusuf S. Akgul, "An occlusion insensitive adaptive focus measurement method," Opt. Express 18, 14212-14224 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-13-14212


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