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作者

Ronita Bardhan;Pooja Gupta;Angshul Majumdar

来源

CITIES,Vol.127,Issue1,Article 103762

语言

英文

关键字

Information fusion;Convolution;Urban form classification;Multi-channel;Data-scare;Heterogeneity

作者单位

Sustainable Design Group, Department of Architecture, University of Cambridge, UK;Indraprastha Institute of Information Technology, Delhi, India;Sustainable Design Group, Department of Architecture, University of Cambridge, UK;Indraprastha Institute of Information Technology, Delhi, India

摘要

Understanding the variability in intra-urban forms is essential for protecting future-proofing cities from climate volatilities. However, the classification of urban forms is costly due to its reliance on high-resolution datasets, limited in the Global South's low-income cities. Additionally, the current classifiers are constrained in characterizing urban forms in heterogeneous cities where the built environment has an isomorphic footprint but vary in urban canopy parameters. Existing methodologies have constraints on using unstructured low-resolution datasets like images and portable document formats to classify intra-urban forms. This study breaks ground by forwarding a novel end-to-end multi-channel supervised data fusion framework, GeoInFuse, to classify different urban form typologies in heterogeneous hyper-dense cities. It uses a state-of-the-art deep learning network on open-source image-based datasets to generate urban form classification. Three datasets (two for ground truth and one containing multi-dimensional urban canopy parameters) are used to demonstrate the framework. The parameters as channels were fused to generate urban form classes. Results show that the GeoInFuse could extract the heterogeneous urban form classes with 74.9.