Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data

Urban functional zones (UFZs) are the urban spaces divided by various functional activities and are the basic units of daily human activities. UFZ mapping, which identifies the UFZ categories in different spatial areas of a city, is of considerable significance to urban management, design, and susta...

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Autores principales:	Runyu Fan, Ruyi Feng, Wei Han, Lizhe Wang
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Deep learning (DL) OpenStreetMap (OSM) remote sensing social sensing urban functional zones (UFZ) mapping Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809
Acceso en línea:	https://doaj.org/article/06fa9225e0d34dd29a94ea894eff851c
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id	oai:doaj.org-article:06fa9225e0d34dd29a94ea894eff851c
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spelling	oai:doaj.org-article:06fa9225e0d34dd29a94ea894eff851c2021-12-02T00:00:03ZUrban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data2151-153510.1109/JSTARS.2021.3127246https://doaj.org/article/06fa9225e0d34dd29a94ea894eff851c2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9612047/https://doaj.org/toc/2151-1535Urban functional zones (UFZs) are the urban spaces divided by various functional activities and are the basic units of daily human activities. UFZ mapping, which identifies the UFZ categories in different spatial areas of a city, is of considerable significance to urban management, design, and sustainable development. Various deep learning-based (DL-based) methods, which achieved remarkable results in an end-to-end supervised process, were proposed for UFZ mapping. However, the excellent performance of DL-based models relies heavily on a large number of well-annotated samples, which is impossible to obtain in practical UFZ mapping scenarios. Obtaining these well-annotated samples requires a lot of manual costs, which greatly limits the outcome of these methods in practical UFZ mapping tasks. In this article, we proposed a UFZ mapping method using OpenStreetMap-based (OSM-based) sample generation and the bi-branch neural network (BibNet). By adopting the idea of OSM-based sample generation, the proposed method utilized large-scale crowdsourcing labeled data (source domain) in OSM to generate a UFZ dataset (target domain) from OSM using remote sensing and social sensing data. Considering the inconsistent response of UFZ to various data observations, it is difficult to fully reflect the characteristics of UFZs using only remote sensing or social sensing data. We further proposed the BibNet, which utilizes two different deep neural network branches to comprehensively harness remote sensing images and social sensing data to map the UFZ. Experiments were conducted in Shenzhen City and Hong Kong City (Yau Tsim Mong District, Sham Shui Po District and Kowloon City District). The proposed method achieved an overall accuracy (OA) of 94.46% in the testing set of Shenzhen City and OA of 91.90% in the testing set of Hong Kong City.Runyu FanRuyi FengWei HanLizhe WangIEEEarticleDeep learning (DL)OpenStreetMap (OSM)remote sensingsocial sensingurban functional zones (UFZ) mappingOcean engineeringTC1501-1800Geophysics. Cosmic physicsQC801-809ENIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 11737-11749 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Deep learning (DL) OpenStreetMap (OSM) remote sensing social sensing urban functional zones (UFZ) mapping Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809
spellingShingle	Deep learning (DL) OpenStreetMap (OSM) remote sensing social sensing urban functional zones (UFZ) mapping Ocean engineering TC1501-1800 Geophysics. Cosmic physics QC801-809 Runyu Fan Ruyi Feng Wei Han Lizhe Wang Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
description	Urban functional zones (UFZs) are the urban spaces divided by various functional activities and are the basic units of daily human activities. UFZ mapping, which identifies the UFZ categories in different spatial areas of a city, is of considerable significance to urban management, design, and sustainable development. Various deep learning-based (DL-based) methods, which achieved remarkable results in an end-to-end supervised process, were proposed for UFZ mapping. However, the excellent performance of DL-based models relies heavily on a large number of well-annotated samples, which is impossible to obtain in practical UFZ mapping scenarios. Obtaining these well-annotated samples requires a lot of manual costs, which greatly limits the outcome of these methods in practical UFZ mapping tasks. In this article, we proposed a UFZ mapping method using OpenStreetMap-based (OSM-based) sample generation and the bi-branch neural network (BibNet). By adopting the idea of OSM-based sample generation, the proposed method utilized large-scale crowdsourcing labeled data (source domain) in OSM to generate a UFZ dataset (target domain) from OSM using remote sensing and social sensing data. Considering the inconsistent response of UFZ to various data observations, it is difficult to fully reflect the characteristics of UFZs using only remote sensing or social sensing data. We further proposed the BibNet, which utilizes two different deep neural network branches to comprehensively harness remote sensing images and social sensing data to map the UFZ. Experiments were conducted in Shenzhen City and Hong Kong City (Yau Tsim Mong District, Sham Shui Po District and Kowloon City District). The proposed method achieved an overall accuracy (OA) of 94.46% in the testing set of Shenzhen City and OA of 91.90% in the testing set of Hong Kong City.
format	article
author	Runyu Fan Ruyi Feng Wei Han Lizhe Wang
author_facet	Runyu Fan Ruyi Feng Wei Han Lizhe Wang
author_sort	Runyu Fan
title	Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
title_short	Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
title_full	Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
title_fullStr	Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
title_full_unstemmed	Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data
title_sort	urban functional zone mapping with a bibranch neural network via fusing remote sensing and social sensing data
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/06fa9225e0d34dd29a94ea894eff851c
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Urban Functional Zone Mapping With a Bibranch Neural Network via Fusing Remote Sensing and Social Sensing Data

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