Segment based classification of Indian urban environment

Pathak, Virendra & Dikshit, Onkar (2004) Segment based classification of Indian urban environment. In 3rd International Symposium on New Technologies for Urban Safety of Mega Cities in Asia, 18-19 October 2004, Agra, India.


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This paper presents results of segment based classification of an Indian urban environment. This approach to classification involved three stages. In the first stage, a region based multispectral segmentation of the image was carried out after determining suitable automatic threshold values considering textured nature of imagery. The second stage involved refinement of initially segmented image, iteratively by merging smaller segments with the most similar adjacent segments until they satisfied a homogeneity criterion. Finally, these segments were classified into 12 different classes using various spectral and textural properties of segments. Three different types of classifications were performed: the per-pixel Gaussian maximum likelihood classification (GMLC), per-segment GML classification, and the per-segment neural classification. Result showed that per-segment classification improves overall classification accuracy by more than 25% in comparison to per-pixel approach.

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ID Code: 18215
Item Type: Conference Paper
Refereed: Yes
Keywords: Classification, Segmentation, Threshold, Backpropagation, Wavelet
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
Copyright Owner: Copyright 2004 [please consult the authors]
Deposited On: 24 Feb 2009 01:22
Last Modified: 10 Aug 2011 13:52

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