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Título: | Autofocus method for automated microscopy using embedded GPUs |
Autor: | Castillo-Secilla, José María; Saval-Calvo, Marcelo; Medina-Valdés, Luis; Cuenca-Asensi, Sergio; Martínez-Álvarez, Antonio; Sánchez-Bueno, Carlos CSIC; Cristóbal, Gabriel CSIC ORCID CVN | Fecha de publicación: | 22-feb-2017 | Editor: | Optical Society of America | Citación: | Biomedical Optics Express 8: 1731-1740 (2017) | Resumen: | In this paper we present a method for autofocusing images of sputum smears taken from a microscope which combines the finding of the optimal focus distance with an algorithm for extending the depth of field (EDoF). Our multifocus fusion method produces an unique image where all the relevant objects of the analyzed scene are well focused, independently to their distance to the sensor. This process is computationally expensive which makes unfeasible its automation using traditional embedded processors. For this purpose a low-cost optimized implementation is proposed using limited resources embedded GPU integrated on cutting-edge NVIDIA system on chip. The extensive tests performed on different sputum smear image sets show the real-time capabilities of our implementation maintaining the quality of the output image. | Descripción: | 10 pags., 7 figs. -- OCIS codes: (100.0100) Image processing; (180.0180) Microscopy; (330.0330) Vision, color, and visual optics | Versión del editor: | http://doi.org/10.1364/BOE.8.001731 | URI: | http://hdl.handle.net/10261/163229 | DOI: | 10.1364/BOE.8.001731 | Identificadores: | doi: 10.1364/BOE.8.001731 issn: 2156-7085 |
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Autofocus method.pdf | 2,91 MB | Adobe PDF | Visualizar/Abrir |
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