Auto-focused panoramic dental tomosynthesis imaging with exponential polynomial based sharpness indicators

Taewon Lee; Yeon Ju Lee; Seungryong Cho

doi:10.1117/12.2254023

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24 February 2017 Auto-focused panoramic dental tomosynthesis imaging with exponential polynomial based sharpness indicators

Taewon Lee, Yeon Ju Lee, Seungryong Cho

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Proceedings Volume 10133, Medical Imaging 2017: Image Processing; 101331Y (2017) https://doi.org/10.1117/12.2254023
Event: SPIE Medical Imaging, 2017, Orlando, Florida, United States

Abstract

In this paper, we develop an improved auto-focusing capability of a panoramic dental tomosynthesis imager. We propose an auto-focusing algorithm with an efficient sharpness indicator based on exponential polynomials which provides better quantitation of steep gradients than the conventional one based on algebraic polynomials. With its accurate estimation of the sharpness of the reconstructed slices, the proposed method resulted in a better performance of automatically extracting in-focus slices in the dental panoramic tomosynthesis.

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Taewon Lee, Yeon Ju Lee, and Seungryong Cho "Auto-focused panoramic dental tomosynthesis imaging with exponential polynomial based sharpness indicators", Proc. SPIE 10133, Medical Imaging 2017: Image Processing, 101331Y (24 February 2017); https://doi.org/10.1117/12.2254023

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