Automatic Cryptosporidium and Giardia viability detection in treated water
نویسندگان
چکیده
منابع مشابه
Automatic Cryptosporidium and Giardia viability detection in treated water
In the automatic detection of Cryptosporidium and Giardia (oo)cysts in water samples, low contrast and noise in the microscopic images can adversely affect the accuracy of the segmentation results. An improved partial differential equation (PDE) filtering that achieves a better trade-off between noise removal and edge preservation is introduced where the compass operator is utilized to attenuat...
متن کاملCryptosporidium and Giardia Distribution in Water: Re-Evaluation
The data and the analysis applied to it in a 1996 paper on the statistical distribution of Cryptosporidium in a reservoir are re-examined with the objective of clarifying general understanding of the way in which Cryptosporidium oocysts and Giardia cysts are distributed in water. General objectives of monitoring for these protozoan parasites are summarized along with essential assumptions used ...
متن کاملOccurrence of Giardia and Cryptosporidium spp. in surface water supplies.
Giardia and Cryptosporidium levels were determined by using a combined immunofluorescence test for source waters of 66 surface water treatment plants in 14 states and 1 Canadian province. The results showed that cysts and oocysts were widely dispersed in the aquatic environment. Giardia spp. were detected in 81% of the raw water samples. Cryptosporidium spp. were found in 87% of the raw water l...
متن کاملThe prevalence of Giardia and Cryptosporidium in Taiwan water supplies.
Giardia and Cryptosporidium have emerged as waterborne pathogens of concern. Thirty-one water samples were collected from nine potable water treatment plants in Taiwan and investigated for the presence of Giardia cysts and Cryptosporidium oocysts. The immunofluorescence assay was used for the simultaneous detection of cysts and oocysts. The frequency of occurrence of cysts was 77.8% for Giardia...
متن کامل[Cryptosporidium and Giardia as water contaminant pathogens in Hungary].
INTRODUCTION Many species of Cryptosporidium, and two assemlages of Giardia duodenalis cause typically acute diaorrhoea in human. The oocysts and cysts of these parasites excreted in faeces are capable of infecting other hosts and those are environmentally stable. AIM The aims of the study were to evaluate the prevalence and genotypes of Cryptosporidium and Giardia species from different wate...
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ژورنال
عنوان ژورنال: EURASIP Journal on Image and Video Processing
سال: 2013
ISSN: 1687-5281
DOI: 10.1186/1687-5281-2013-56