Evaluation of autofocus functions of conventional sputum smear microscopy for tuberculosis.

Almir Kimura Junior,Marly G F Costa,Cicero F F Costa Filho,Luciana B M Fujimoto,Julia Salem

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference（2010）

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摘要

This article presents a systematic analysis of focus functions in conventional sputum smear microscopy for tuberculosis. This is the first step in the development of automatic microscopy. Nine autofocus functions are analyzed in a set of 1200 images with varying degrees of content density. These functions were evaluated using quantitative procedures. The main accomplishment of this work was to show that an autofocus function based on variance measures produced the best results for tuberculosis images.

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关键词

autofocus functions,optical focusing,tuberculosis images,diseases,biomedical optical imaging,variance measures,conventional sputum smear microscopy,optical microscopy,automatic microscopy,medical image processing,entropy,pixel,microscopy,accuracy

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