DocumentCode :
3338070
Title :
Extracting a focused image from several out of focus micromechanical structure images
Author :
Shoa, Tina ; Thomas, Gabriel ; Shafai, Cyrus ; Shoa, Alireza
Author_Institution :
Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
Volume :
3
fYear :
2004
fDate :
17-21 May 2004
Abstract :
An all-focused image of a micromechanical structure can be extracted from several microscopic images with different focal planes. Spreading of the out-of-focus regions over the background, which shows the out-of-focus object bigger than its actual size, causes errors when a sharpness function is applied. The focused area with low contrast is also one of the difficulties faced in order to easily distinguish them from the out-of-focus regions. We propose a method to estimate the focused section of each image and create a final focused image by concatenating these areas. We let the size of the tested areas vary in order to obtain a more accurate result. The method finds focused pixels among the images using a voting method and pastes them to the final image. This approach does not rely on any information of the microscope. No a priori knowledge of an optical system is needed.
Keywords :
image enhancement; image reconstruction; micromechanical devices; optical focusing; optical microscopy; all-focused image; focal planes; focused image extraction; image enhancement; micromechanical structure images; microscopic images; sharpness function; Bars; Biomembranes; Copper; Focusing; Image fusion; Image generation; Image restoration; Micromechanical devices; Microscopy; Springs;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
ISSN :
1520-6149
Print_ISBN :
0-7803-8484-9
Type :
conf
DOI :
10.1109/ICASSP.2004.1326592
Filename :
1326592
Link To Document :
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