Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41792
Title: Object-based change detection
Keywords: Land-cover
Remote sensing
Digital image processing
High-spatial-resolution imagery
Object-Based Image Analysis (OBIA)
Object-Based Change Detection (OBCD)
Cobertura do solo
Sensoriamento remoto
Processamento digital de imagens
Imagens de alta resolução espacial
Análise de imagem baseada em objeto
Detecção de mudanças baseada em objetos
Issue Date: Jul-2012
Publisher: Taylor & Francis Group
Citation: CHEN, G. et al. Object-based change detection. International Journal of Remote Sensing, London, v. 33, n. 14, p. 4434-4457, July 2012.
Abstract: Characterizations of land-cover dynamics are among the most important applications of Earth observation data, providing insights into management, policy and science. Recent progress in remote sensing and associated digital image processing offers unprecedented opportunities to detect changes in land cover more accurately over increasingly large areas, with diminishing costs and processing time. The advent of high-spatial-resolution remote-sensing imagery further provides opportunities to apply change detection with object-based image analysis (OBIA), that is, object-based change detection (OBCD). When compared with the traditional pixel-based change paradigm, OBCD has the ability to improve the identification of changes for the geographic entities found over a given landscape. In this article, we present an overview of the main issues in change detection, followed by the motivations for using OBCD as compared to pixel-based approaches. We also discuss the challenges caused by the use of objects in change detection and provide a conceptual overview of solutions, which are followed by a detailed review of current OBCD algorithms. In particular, OBCD offers unique approaches and methods for exploiting high-spatial-resolution imagery, to capture meaningful detailed change information in a systematic and repeatable manner, corresponding to a wide range of information needs.
URI: https://www.tandfonline.com/doi/abs/10.1080/01431161.2011.648285
http://repositorio.ufla.br/jspui/handle/1/41792
Appears in Collections:DCF - Artigos publicados em periódicos

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