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Journal of Applied Remote Sensing • Open Access

Comparison between pixel- and object-based image classification of a tropical landscape using Système Pour l’Observation de la Terre-5 imagery
Author(s): Hadi Memarian; Siva K. Balasundram; Raj Khosla

Paper Abstract

Based on the Système Pour l’Observation de la Terre-5 imagery, two main techniques of classifying land-use categories in a tropical landscape are compared using two supervised algorithms: maximum likelihood classifier (MLC) and K -nearest neighbor object-based classifier. Nine combinations of scale level (SL10, SL30, and SL50) and the nearest neighbor (NN3, NN5, and NN7) are investigated in the object-based classification. Accuracy assessment is performed using two main disagreement components, i.e., quantity disagreement and allocation disagreement. The MLC results in a higher total disagreement in total landscape as compared with object-based image classification. The SL30-NN5 object-based classifier reduces allocation error by 250% as compared with the MLC. Therefore, this classifier shows a higher performance in land-use classification of the Langat basin.

Paper Details

Date Published: 28 August 2013
PDF: 13 pages
J. Appl. Remote Sens. 7(1) 073512 doi: 10.1117/1.JRS.7.073512
Published in: Journal of Applied Remote Sensing Volume 7, Issue 1
Show Author Affiliations
Hadi Memarian, Univ. Putra Malaysia (Malaysia)
Siva K. Balasundram, Univ. Putra Malaysia (Malaysia)
Raj Khosla, Colorado State Univ. (United States)

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