A study for accelerating the speed of all-in-focus image processing

Lihui Wang; Satoshi Tabata; Hirotoshi Takeuchi; Masatoshi Ishikawa

doi:10.1117/12.2542686

17 February 2020 A study for accelerating the speed of all-in-focus image processing

Lihui Wang, Satoshi Tabata, Hirotoshi Takeuchi, Masatoshi Ishikawa

Proceedings Volume 11245, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVII; 112450U (2020) https://doi.org/10.1117/12.2542686
Event: SPIE BiOS, 2020, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Lihui Wang, Satoshi Tabata, Hirotoshi Takeuchi, and Masatoshi Ishikawa "A study for accelerating the speed of all-in-focus image processing", Proc. SPIE 11245, Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVII, 112450U (17 February 2020); https://doi.org/10.1117/12.2542686

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