Resumo

SANCHEZ-TORRES, Germán  e  TABORDA-GIRALDO, John A.. Automated estimation of occupancy measure on beaches using digital image processing. TecnoL. [online]. 2014, vol.17, n.33, pp.21-29. ISSN 0123-7799.

In this paper we describe a methodology for occupancy measure on beaches based on digital image processing techniques. This metric constitute a measure of interest for quantification of factors relates to the quality of user experience and is an import indicator in integrated management field. The proposed method has two main components: the preprocessing and occupancy density estimation. In the preprocessing stage a color correction approach is applied in order to minimize the illumination variance effects over the objects in the scene. Subsequently, the estimation begins delimiting the information regarding the environment using a mask or reference image. Gray-level gradient analysis is applied to the resulted image after the mask appliance. The results show a 2.6% margin of error that suggests the measure is an occupancy measure indicative. The obtained error is related to the auto occlusion identification and processing.

Palavras-chave : Color correction; edge detection; occupancy measure; digital image processing; tourist beaches.

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