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Simulation-Based Building Change Detection From Multiangle SAR Images and Digital Surface Models
2016
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Finally, the geometry of the layover areas is adapted based on the geometric projection described in section III-B1, followed by a comparison of the position of layover fill. ...
In comparison, the change ratio of layover areas shows less variation. Fusing the change ratios to the mean change ratio stabilizes the analysis. ...
doi:10.1109/jstars.2015.2502762
fatcat:e5ragsxyizcm5k2ha5fokbkfxe
INVESTIGATING THE APPLICABILITY OF SUSTAINABLE URBAN FORM AND DESIGN TO TRADITIONAL CITIES, CASE STUDY: THE OLD CITY OF SANA'A
2018
Archnet-IJAR
Similarly, as to walkability index, traditional layout has higher rates of intersections and connected nodes and least angular changes with higher rates of integrations and choices in terms of Space Syntax ...
The findings show that traditional form with its higher building density and compactness is a good model with regards to sustainable principles. ...
Analytical results of the comparison between the old traditional urban area of Sana'a with modern urban form and design in Haddah and Sawan reveal important and significant differences on the light of ...
doi:10.26687/archnet-ijar.v12i2.1391
fatcat:mcgy7b2dkfgupfaj3tmypdzfle
LASDU: A Large-Scale Aerial LiDAR Dataset for Semantic Labeling in Dense Urban Areas
2020
ISPRS International Journal of Geo-Information
In this work, we present a large-scale aerial LiDAR point cloud dataset acquired in a highly-dense and complex urban area for the evaluation of semantic labeling methods. ...
This dataset covers an urban area with highly-dense buildings of approximately 1 km2 and includes more than 3 million points with five classes of objects labeled. ...
Acknowledgments: The authors would like to thank the HiWATER project for providing the original ALS point clouds.
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/ijgi9070450
fatcat:drso45lbsbbepi3njen46uuqe4
TUM-MLS-2016: An Annotated Mobile LiDAR Dataset of the TUM City Campus for Semantic Point Cloud Interpretation in Urban Areas
2020
Remote Sensing
In the past decade, a vast amount of strategies, methods, and algorithms have been developed to explore the semantic interpretation of 3D point clouds for extracting desirable information. ...
These datasets cover an urban area of approximately 1 km long roadways and include more than 40 million annotated points with eight classes of objects labeled. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/rs12111875
fatcat:o2ngulbppfd65iaegkqzkk2mue
3D change detection – Approaches and applications
2016
ISPRS journal of photogrammetry and remote sensing (Print)
We first describe the general considerations of 3D CD problems in different processing stages and identify CD types based on the information used, being the geometric comparison and geometric-spectral ...
Change detection (CD) or time-series data analysis in 3D has gained great attention due to its capability of providing volumetric dynamics to facilitate more applications and provide more accurate results ...
"Building detection + Change detection" is a popular strategy to detect changes of buildings. ...
doi:10.1016/j.isprsjprs.2016.09.013
fatcat:wf4fuc3mqvhsbo2v3drzdpyrcu
Towards Building and Civil Infrastructure Reconstruction from Point Clouds: A Review on Data and Key Techniques
2021
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article therefore intends to provide a thorough review of the state-of-the-art acquisition and processing techniques for building reconstruction using point clouds. ...
The reconstruction of 3-D objects in a scene of man-made infrastructure and buildings is one of the core tasks using point clouds, which involves both the 3-D data acquisition and processing. ...
INTRODUCTION I N RECENT decades, the demands for effective and efficient monitoring of the dynamic change of buildings and construction installations in urban areas have continually increased in the fields ...
doi:10.1109/jstars.2021.3060568
fatcat:zjpzyfmibjeghcf35csjnwuseu
Land Cover Change Detection in Urban Lake Areas Using Multi-Temporary Very High Spatial Resolution Aerial Images
2018
Water
comparison method was used to detect changes. ...
The dominant changes that took place in the study area were lake and vegetation shrinking, replaced by high density buildings and roads. ...
The authors would like to thank Lv Zhiyong from the computer school of Xi'An University of Technology for providing us with valuable suggestions on the change detection approaches. ...
doi:10.3390/w10020001
fatcat:kntx3tpnw5cklenlyudsrnmurq
Integrating external knowledge into SVM classification – Fusing hyperspectral and laserscanning data by kernel composition
2012
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
In Fig.5 , green segments refer to buildings where both approaches assigned the same class, while red segments mark buildings for which the approaches disagree. ...
to be separated-instead of using geometric information at each step. ...
doi:10.5194/isprsarchives-xxxviii-4-w19-57-2011
fatcat:my6uod6dvfcurapjeiet7uvvii
A building extraction approach for Airborne Laser Scanner data utilizing the Object Based Image Analysis paradigm
2016
International Journal of Applied Earth Observation and Geoinformation
With the use of class modelling methods, we generated the final target class of objects representing buildings. The approach was developed for a test area in Biberach an der Riß (Germany). ...
In our work, we combined OBIA with ALS point cloud data in order to identify and extract buildings as 2D polygons representing roof outlines in a top down mapping approach. ...
The authors would like to acknowledge the provision of Biberach an der Riß ALS data by Trimble Geospatial and the provision of the Downtown Toronto data set by Optech Inc., First Base Solutions Inc., GeoICT ...
doi:10.1016/j.jag.2016.06.007
fatcat:ywlofuulivechj22yrhtf3w5ua
Object-Based Distinction between Building Shadow and Water in High-Resolution Imagery Using Fuzzy-Rule Classification and Artificial Bee Colony Optimization
2016
Journal of Sensors
During the segmentation, a series of statistical factors, such as spectrum, ratio, and sharp features, are calculated to make up for defects in the high-resolution imagery. ...
Due to the high similarity of the spectra of urban water and building shadows, high-resolution satellite imagery often confuses and wrongly classifies these features. ...
The study was in cooperation with Universities Project of Fujian Bureau of Surveying, Mapping and Geoinformation (no. 2015JX04). ...
doi:10.1155/2016/2385039
fatcat:xoed7swanrbo7bebikyqkwdnla
Integrating Aerial LiDAR and Very-High-Resolution Images for Urban Functional Zone Mapping
2021
Remote Sensing
This study presents a new approach for Urban Functional Zone (UFZ) mapping by integrating two-dimensional (2D) Urban Structure Parameters (USPs), three-dimensional (3D) USPs, and the spatial patterns of ...
In addition, the multi-classifiers (MLCs), i.e., Random Forest, K-Nearest Neighbor, and Linear Discriminant Analysis classifiers were used to perform the land cover mapping by using the optimized features ...
The geometrical features were used to reveal geometrical characteristics of objects, i.e., area, border length, length/width, compactness, asymmetry, border index, density, elliptic fit, main direction ...
doi:10.3390/rs13132573
doaj:06d35305d0f34c0090e99ad7e58d11c6
fatcat:dq2ncpjfx5d7xg754lme3vz2t4
A Scientific Approach to the Densification Debate in Bergen Centre in Norway
2020
Sustainability
This article demonstrates how the Space Syntax method can be applied to urban densification strategies in urban planning and policy making. ...
research-based input to the densification strategy debate in Bergen. ...
Acknowledgments: We would like to acknowledge Trygve Andresen, of Asplan Viak, for his contribution of thematic maps for the project and report Strategi for fortetting innenfor Bergens sentrale deler and ...
doi:10.3390/su12219178
fatcat:ec72aks2w5cnfhbsiymlgr7vyu
Full Hierarchic Versus Non-Hierarchic Classification Approaches for Mapping Sealed Surfaces at the Rural-Urban Fringe Using High-Resolution Satellite Data
2009
Sensors
Since 2008 more than half of the world population is living in cities and urban sprawl is continuing. ...
For the decision tree approach a one-against-all hierarchic classification strategy does not lead to an improvement of classification accuracy compared to the standard all-against-all approach. ...
Acknowledgements This research is funded by a Ph.D. grant of the Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen). ...
doi:10.3390/s90100022
pmid:22389586
pmcid:PMC3280732
fatcat:ldfexb5ycnfydbou6e6w7wdwfy
Improving Urban Change Detection From Multitemporal SAR Images Using PCA-NLM
2013
IEEE Transactions on Geoscience and Remote Sensing
for reduction of the speckle effect in change detection, (3) to investigate spatio-contextual change detection, (4) to investigate object-based unsupervised change detection, and (5) to investigate a ...
The detection of urban changes using SAR images is complicated due to the complex mixture of the urban environment and the special characteristics of SAR images, for example, the existence of speckle. ...
The Markov random field (MRF) change detection algorithm showed limited capacity to simultaneously maintain fine geometric detail in urban areas and combat the effect of speckle. ...
doi:10.1109/tgrs.2013.2245900
fatcat:2eoewpshe5ahxn5gwegyekraee
The Change Detection of Building Models Using Epochs of Terrestrial Point Clouds
2011
2011 International Workshop on Multi-Platform/Multi-Sensor Remote Sensing and Mapping
Since the accuracy of terrestrial laser scanning is normally in the order of millimeter, the accuracy of the computed planar surface area is expected to reach the order of centimeter taking the error accumulation ...
The presented method only focuses on the disappearing change (for instance erosion, damage, etc.) of rebuilt building models and quantification of the changed regions, which can be helpful to the works ...
to a geometric approximation of the whole building model. ...
doi:10.1109/m2rsm.2011.5697381
fatcat:zttz2c6chzdxnmihhzl2yybwsq
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