Automatic detection and morphological delineation of bacteriophages in electron microscopy images
Authors: 
A. Gelzinis, A. Verikas, E. Vaiciukynas, M. Bacauskiene, S. Sulcius, E. Simoliunas, J. Staniulis, R. PaskauskasAuthors Info & Claims
Pages 101 - 116
Abstract
Automatic detection, recognition and geometric characterization of bacteriophages in electron microscopy images was the main objective of this work. A novel technique, combining phase congruency-based image enhancement, Hough transform-, Radon transform- and open active contours with free boundary conditions-based object detection was developed to detect and recognize the bacteriophages associated with infection and lysis of cyanobacteria Aphanizomenon flos-aquae. A random forest classifier designed to recognize phage capsids provided higher than 99% accuracy, while measurable phage tails were detected and associated with a correct capsid with 81.35% accuracy. Automatically derived morphometric measurements of phage capsids and tails exhibited lower variability than the ones obtained manually. The technique allows performing precise and accurate quantitative (e.g. abundance estimation) and qualitative (e.g. diversity and capsid size) measurements for studying the interactions between host population and different phages that infect the same host.
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- Automatic detection and morphological delineation of bacteriophages in electron microscopy images
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Published: 01 September 2015
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