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Proceedings Paper

A study for accelerating the speed of all-in-focus image processing
Author(s): Lihui Wang; Satoshi Tabata; Hirotoshi Takeuchi; Masatoshi Ishikawa
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Paper Abstract

To capture an all-in-focus and 3D depth image, shape from focus method is widely used. The phase accuracy of the image candidates should be processed and adjusted beforehand. Phase only correction method was employed in this work and to accelerate the processing speed, the image processing by Fast Fourier Transform (FFT) was optimized. Meanwhile, the processing task was assigned in several parallel threads so that the performance would be improved. The method was used on a variable focus imaging system, and, as a result, the processing speed was improved to around 2.5-fps.

Paper Details

Date Published: 17 February 2020
PDF: 6 pages
Proc. SPIE 11245, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVII, 112450U (17 February 2020); doi: 10.1117/12.2542686
Show Author Affiliations
Lihui Wang, Guangdong Institute of Semiconductor Industrial Technology (China)
Satoshi Tabata, The Univ. of Tokyo (Japan)
Hirotoshi Takeuchi, The Univ. of Tokyo (Japan)
Masatoshi Ishikawa, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 11245:
Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVII
Thomas G. Brown; Tony Wilson; Laura Waller, Editor(s)

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