Published 2023

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Publication details

Journal : Optics Express , vol. 31 , p. 12261–12279–18 , 2023

Publisher : Optical Society of America

International Standard Numbers :
Printed : 1094-4087
Electronic : 1094-4087

Publication type : Academic article

Contributors : Quintana, Laura; Ortega Sarmiento, Samuel; Fabelo, Himar; Balea-Fernández, Francisco J.; Callico, Gustavo M.

Issue : 8

Research areas

Quality and measurement methods

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Kjetil Aune
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Hyperspectral (HS) imaging (HSI) expands the number of channels captured within the electromagnetic spectrum with respect to regular imaging. Thus, microscopic HSI can improve cancer diagnosis by automatic classification of cells. However, homogeneous focus is difficult to achieve in such images, being the aim of this work to automatically quantify their focus for further image correction. A HS image database for focus assessment was captured. Subjective scores of image focus were obtained from 24 subjects and then correlated to state-of-the-art methods. Maximum Local Variation, Fast Image Sharpness block-based Method and Local Phase Coherence algorithms provided the best correlation results. With respect to execution time, LPC was the fastest


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