Dynamic laser speckle and fuzzy mathematical morphology applied to studies of chemotaxis towards hydrocarbons
| Autor: | Jorge Froilán González, Marcelo Trivi, G. H. Sendra, Agustina Bouchet, Silvia Elena Murialdo, Melina Nisenbaum, Marcelo Nicolás Guzmán, Juan Ignacio Pastore |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Dynamic speckle
Ambiente Fuzzy mathematical morphology Quimiotaxis Ecology Hidrocarburos Public Health Environmental and Occupational Health Biodegradación Ambiental Chemotaxis Image processing Biology Bioquímica y Biología Molecular Speckle pattern Positive chemotaxis Pseudomonas FMM dynamic laser speckle Biological system fuzzy mathematical morphology General Environmental Science Shape analysis (digital geometry) |
| Zdroj: | CIC Digital (CICBA) Comisión de Investigaciones Científicas de la Provincia de Buenos Aires instacron:CICBA |
| Popis: | The movement of the microorganisms towards a higher concentration of the chemical attractant is called positive chemotaxis and is involved in the efficiency of chemical degradation. Several studies are focused in this field related to genomics, and towards demonstrating chemotactic responses by bacteria, but there is little information related to the activity and morphology of their response. In this work, we use a recently reported dynamic speckle laser method, to process images and to distinguish motile surface patterns per area of colonisation by applying image processing techniques called fuzzy mathematical morphology (FMM). The images of bacterial colonies are usually surfaced, with vague edges and non-homogeneous grey levels. Hence, conventional image processing methods for shape analysis cannot be applied in these cases. In this paper, we propose the application FMM to solve this problem. The approach given was effective to segment, detect and also to describe colonisation patterns. |
| Databáze: | OpenAIRE |
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