Semi-automated identification and extraction of Callitris intratropica from Eucalypt dominant savanna

Whiteside, Tim and Taplin, Pascale (2010) Semi-automated identification and extraction of Callitris intratropica from Eucalypt dominant savanna. In: GEOBIA 2010: Geographic object-based image analysis, 29 June - 2 July, Gent, Belgium.

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The Northern Cypress Pine, Callitris intratropica (fam: Cypressae) exists in a variety of environments across the northern regions of Australia's Northern Territory. Due to its inherent characteristics the species has been described as a potential indicator of fire regimes within the landscape. Its susceptibility to intense fires means that populations are vulnerable under late season high intensity burning regimes. Mapping of the distribution of the species will provide a level of data that will further the understanding of its ecology and population dynamics. The method described here applies multi-level region growing and thresholding techniques to high spatial resolution multispectral satellite imagery to delineate Callitris crowns from surrounding Eucalypt dominant savanna. Detected crowns are compared against recorded field observations and a manual delineation method.

Item Type: Conference or Workshop Item (Poster)
Additional Information: ISPRS Vol.No. XXXVIII-4/C7, Archives ISSN No 1682-1777
Keywords: Object-based image analysis, tree crown extraction, northern Australia, tropical savanna, Callitris intratropica.
Field of Research (2008): 05 Environmental Sciences > 0502 Environmental Science and Management > 050206 Environmental Monitoring
08 Information and Computing Sciences > 0801 Artificial Intelligence and Image Processing > 080106 Image Processing
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Date Deposited: 28 Sep 2010 02:43
Last Modified: 14 Feb 2011 15:33

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