A Fast and Robust Method of Focusing

DOI

10.2991/emeit.2012.294How to use a DOI?

Keywords

Image preocessing, Canny algorithm, Autofocus

Abstract

In the measuring technology of microscopy, in order to realize high focusing accuracy and also strong noise suppression, the author approves a new focusing method for microscopy on the base of principle of microscope imaging and focus. The method uses Canny algorithm to recognize the edge of the measured object. When the edge of the measured object is the narrowest, the microscope gets the best focusing. The experiment shows that compared with the classical focusing evaluation function, this method is characteristic of unimodality, accuracy, sensibility and noise immunity. The method is an autofucusing method with combination property, and it is especially suitable for high precision and speed microscopic measurement.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Dijian Xu
AU  - Hongjun Zhu
AU  - Jinliang Shi
AU  - Guorong Chen
PY  - 2012/09
DA  - 2012/09
TI  - A Fast and Robust Method of Focusing
BT  - Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT 2012)
PB  - Atlantis Press
SP  - 1328
EP  - 1332
SN  - 1951-6851
UR  - https://doi.org/10.2991/emeit.2012.294
DO  - 10.2991/emeit.2012.294
ID  - Xu2012/09
ER  -