2007
DOI: 10.1590/s0102-311x2007000500004
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Abstract: This paper presents a case study on environmental aspects related to the occurrence of visceral leishmaniasis in Teresina, Piauí, Brazil, from 1993 to 1996, in order to discuss the use of some appropriate geo-processing methods for median-resolution remote sensing images potentially useful for studying vector-borne transmissible diseases in urban areas. We present the main techniques: registration, geometric correction, restoration, fusion, segmentation, and classification. Using intra-class correlation indice… Show more

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Cited by 22 publications
(18 citation statements)
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References 14 publications
(21 reference statements)
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“…Images with high cloud cover in the PRODES Project database were replaced by images selected and acquired from INPE's online CBERS/Landsat images catalogue (http://www.dgi.inpe.br/CDSR/), and geo-referenced using past PRODES project images (Table 1). Visible and infrared spectral bands from the Landsat TM sensor have been widely used for land-use and urban studies in Brazil [22,[35][36][37]. Landsat TM classification attempted to identify urban land use as built-up areas in municipality centers but also to identify other types of land use related to human presence.…”
Section: Identifying the Spatial Units Of Human Occupationmentioning
confidence: 99%
“…Images with high cloud cover in the PRODES Project database were replaced by images selected and acquired from INPE's online CBERS/Landsat images catalogue (http://www.dgi.inpe.br/CDSR/), and geo-referenced using past PRODES project images (Table 1). Visible and infrared spectral bands from the Landsat TM sensor have been widely used for land-use and urban studies in Brazil [22,[35][36][37]. Landsat TM classification attempted to identify urban land use as built-up areas in municipality centers but also to identify other types of land use related to human presence.…”
Section: Identifying the Spatial Units Of Human Occupationmentioning
confidence: 99%
“…The identification of these factors can support resource allocation and implementation of control measures 1,11,12 . However, some studies have highlighted that the use of remote sensing images for studying endemics in urban and periurban areas raises major conceptual and technical challenges 12,13,14 .…”
Section: Introductionmentioning
confidence: 99%
“…The Maximum Likelihood method was applied consisting of a supervised, punctual classification, based on the radiometric value of the pixel, which has to be determined through samples, object information to be classified (Correia et al, 2007).…”
Section: Land Usementioning
confidence: 99%