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Mapping of urban structures based on very high resolution satellite imagery for the city of DaNang, Vietnam

Braun, Andreas and Warth, Gebhard and Bachofer, Felix (2018) Mapping of urban structures based on very high resolution satellite imagery for the city of DaNang, Vietnam. GI_Forum 2018, 02.-05. Jul. 2018, Salzburg, Österreich. DOI: 10.13140/RG.2.2.35327.92320

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Abstract

Detailled information on spatial structures is a key requirement for urban planning. However, many cities in developing and newly industrializing countries are lacking base data for their urban planning. Earth observation can therefore serve as a valuable source for administrations and urban planners. This work demonstrates the derivation of urban structures and building typologies for the city of DaNang, Vietnam, based on very high resolution (Pléiades) and high resolution (RapidEye) satellite imagery. Object-based image analysis was applied to identify built-up structures. Subsequently, data was combined with cadastral information to estimate the number of households in the city. Based on the "Local climate zones" scheme, nine different structures were classified at the building block level based on spatial parameters (such as size, density, shape or distances) and supervised machine learning classification. Derivation of surface models from the tri-stereoscopic Pléiades data by means of photogrammetric processing. Accurracy of both the classification and the surface stimates was assessed by using around 1000 reference points collected during field work. Concludingly, combining information of remote sensing, GIS data and geospatial analysis provides a thorough picture of the spatial structure of the city DaNang which can then be used for the planning of urban development.

Item URL in elib:https://elib.dlr.de/122838/
Document Type:Conference or Workshop Item (Poster)
Title:Mapping of urban structures based on very high resolution satellite imagery for the city of DaNang, Vietnam
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Braun, Andreasan.braun (at) uni-tuebingen.deUNSPECIFIED
Warth, GebhardUNSPECIFIEDUNSPECIFIED
Bachofer, FelixFelix.Bachofer (at) dlr.dehttps://orcid.org/0000-0001-6181-0187
Date:July 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.13140/RG.2.2.35327.92320
Status:Published
Keywords:Urban planning, building types, Remote Sensing
Event Title:GI_Forum 2018
Event Location:Salzburg, Österreich
Event Type:international Conference
Event Dates:02.-05. Jul. 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Bachofer, Dr. Felix
Deposited On:27 Nov 2018 12:26
Last Modified:31 Jul 2019 20:20

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