Experimental Investigations of Object based Urban Land Classification of Multispectral IRS R2 Image using Supervised ML Algorithms

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2022 by IJETT Journal
Volume-70 Issue-4
Year of Publication : 2022
Authors : Alpesh M. Patel, Anil Suthar


MLA Style: Alpesh M. Patel, and Anil Suthar "Experimental Investigations of Object based Urban Land Classification of Multispectral IRS R2 Image using Supervised ML Algorithms." International Journal of Engineering Trends and Technology, vol. 70, no. 4, Apr. 2022, pp. 135-145. Crossref, https://doi.org/10.14445/22315381/IJETT-V70I4P211

APA Style: Alpesh M. Patel, & Anil Suthar. (2022). Experimental Investigations of Object based Urban Land Classification of Multispectral IRS R2 Image using Supervised ML Algorithms. International Journal of Engineering Trends and Technology, 70(4), 135-145. https://doi.org/10.14445/22315381/IJETT-V70I4P211

The migration of people towards city and town areas is the dominant factor for urban development and financial policymakers of developing countries like India. In the last decades, numerous availability of satellite data and the increasing computational capability of machines have inspired for effective utilization of remote sensing technology for urban planning. There are various machine learning methods that can be employed for urban land area classification with different performance capabilities. This paper compares six object-based supervised machine learning classifier algorithms with regard to classification accuracy and execution time and investigates the sensitivity of these classifiers for numerous training samples sizes for the classification of the urban area of Surat city. Linear imaging self-scanner (LISS-IV) sensor data of Indian Remote Sensing Resources at-2 (IRS-R2) was utilized for this urban object-based classification (OBC) investigation. The effect of the number of training samples used for training the supervised machine learning classifier has been explored with reference to the kappa coefficient (KC) and overall accuracy (OA) with the Shepherd algorithm used as the segmentation step. The ensemble-based bagging and random forest (RF) algorithms have illustrated superior performance compared to the support vector machine (SVM) classifier for object-oriented classification of urban land. The k neighbors classifier (KNC) has shown the least performance accuracy with an OA of 85.37%. The object-based RF classifier has displayed the highest precision with OA of 93.45% and KC of 0.9 in order to classify an urban area.

Segmentation, Object-Based Classification (OBC), Machine Learning (ML), Very High Resolution (VHR), Random forest.

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