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Proceedings Paper

Flexible depth of field extension and its application to multiple micro objects recognition
Author(s): Deokhwa Hong; Kangmin Park; Hyungsuck Cho
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Paper Abstract

Application of visual servoing in microassembly area is being developed but still limited by small depth of field of optical microscopes. There have been several research efforts to resolve this problem in robotics and optics area, but they are still insufficient to be directly applied. In this paper, the concept of flexible depth of field extension, which is to use an LC-SLM to alleviate the computational cost of the wave-front coding method and obtain the best image for a given defocus of the object, and how to implement the system are explained, and it is applied to a microassembly setup for target detection experiments. The results imply that a good microassembly strategy can be devised for fast and robust performance in micro world.

Paper Details

Date Published: 8 October 2007
PDF: 10 pages
Proc. SPIE 6718, Optomechatronic Computer-Vision Systems II, 671803 (8 October 2007); doi: 10.1117/12.754539
Show Author Affiliations
Deokhwa Hong, Korea Advanced Institute of Science and Technology (South Korea)
Kangmin Park, Korea Advanced Institute of Science and Technology (South Korea)
Hyungsuck Cho, Korea Advanced Institute of Science and Technology (South Korea)

Published in SPIE Proceedings Vol. 6718:
Optomechatronic Computer-Vision Systems II
Jonathan Kofman; Yuri Lopez de Meneses; Shun'ichi Kaneko; Claudio A. Perez; Didier Coquin, Editor(s)

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