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ISPRS International Journal of Geo-Information, Volume 6, Issue 11

November 2017 - 59 articles

Cover Story: We apply rapid landscape line detection to extract historic vegetable garden walls based on topographic information from a LiDAR-derived high-resolution digital elevation model (DEM). The spatial information on slope, curvature, and openness enables the identification of the location of anthropogenic landscape features. Three rapid processes used in this study include the derivation of topographic parameters, line extraction and aggregation. Results show that wall line detection with multiple topographic parameter images is a simple means of obtaining essential historic wall feature information. The aggregation of three individual detection results from slope, curvature, and openness increases the accuracy of identification of historic anthropogenic features. Further research will consider the unmanned aerial vehicle for collecting point clouds and spectral information of image photos. View the paper
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Articles (59)

  • Article
  • Open Access
27 Citations
5,835 Views
15 Pages

A Virtual Geographic Environment for Debris Flow Risk Analysis in Residential Areas

  • Lingzhi Yin,
  • Jun Zhu,
  • Yi Li,
  • Chao Zeng,
  • Qing Zhu,
  • Hua Qi,
  • Mingwei Liu,
  • Weilian Li,
  • Zhenyu Cao and
  • Weijun Yang
  • + 1 author

Emergency risk assessment of debris flows in residential areas is of great significance for disaster prevention and reduction, but the assessment has disadvantages, such as a low numerical simulation efficiency and poor capabilities of risk assessmen...

  • Article
  • Open Access
27 Citations
9,348 Views
19 Pages

Geo-Environmental Estimation of Land Use Changes and Its Effects on Egyptian Temples at Luxor City

  • Abdelaziz Elfadaly,
  • Osama Wafa,
  • Mohamed A. R. Abouarab,
  • Antonella Guida,
  • Pier Giorgio Spanu and
  • Rosa Lasaponara

Over the years, the Egyptian temples at Luxor city have been intensely investigated, but most of these studies just focused on the classical sides of the archaeological and historical descriptions. Many of the environmental problems are the inevitabl...

  • Article
  • Open Access
13 Citations
5,021 Views
18 Pages

Contradictions in spatial resolution and temporal coverage emerge from earth observation remote sensing images due to limitations in technology and cost. Therefore, how to combine remote sensing images with low spatial yet high temporal resolution as...

  • Article
  • Open Access
18 Citations
5,769 Views
14 Pages

Correction of digital elevation models (DEMs) for flat areas is a critical process for hydrological analyses and modeling, such as the determination of flow directions and accumulations, and the delineation of drainage networks and sub-basins. In thi...

  • Article
  • Open Access
23 Citations
8,725 Views
17 Pages

New Zealand has a legal 3D cadastre, and has done since the inception of its cadastral survey and tenure systems around 150 years ago. However, the digital representation of the cadastre is 2D with 3D situations handled via static plan, section and e...

  • Article
  • Open Access
29 Citations
8,315 Views
20 Pages

Optimizing Cruising Routes for Taxi Drivers Using a Spatio-Temporal Trajectory Model

  • Liang Wu,
  • Sheng Hu,
  • Li Yin,
  • Yazhou Wang,
  • Zhanlong Chen,
  • Mingqiang Guo,
  • Hao Chen and
  • Zhong Xie

Much of the taxi route-planning literature has focused on driver strategies for finding passengers and determining the hot spot pick-up locations using historical global positioning system (GPS) trajectories of taxis based on driver experience, dista...

  • Article
  • Open Access
17 Citations
6,206 Views
18 Pages

Monitoring ephemeral gullies facilitates water planning and soil conservation. Artificial interpretation based on high spatial resolution images is the main method for monitoring ephemeral gullies in large areas; however, this method is time consumin...

  • Article
  • Open Access
2 Citations
5,547 Views
20 Pages

A Representation Method for Complex Road Networks in Virtual Geographic Environments

  • Peibei Zheng,
  • Hong Tao,
  • Songshan Yue,
  • Mingguang Wu,
  • Guonian Lv and
  • Chuanlong Zhou

Road networks are important for modelling the urban geographic environment. It is necessary to determine the spatial relationships of road intersections when using maps to help researchers conduct virtual urban geographic experiments (because a road...

  • Article
  • Open Access
10 Citations
6,546 Views
21 Pages

The spatial distribution of urban geographical events is largely constrained by the road network, and research on spatial clusters of fire accidents at the city level plays a crucial role in emergency rescue and urban planning. For example, by knowin...

  • Feature Paper
  • Article
  • Open Access
2 Citations
5,514 Views
20 Pages

Mapping and Analyzing Stream Network Changes in Watonwan River Watershed, Minnesota, USA

  • Fei Yuan,
  • Phillip Larson,
  • Roman Mulvihill,
  • Devon Libby,
  • Jessica Nelson,
  • Tyler Grupa and
  • Rick Moore

Much of the Watonwan River tributary system to the upper Mississippi River basin (UMR), and the fluvial systems to which it drains, are listed as impaired under the United States Environmental Protection Agency Clean Water Act303(d) and/or by the Min...

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ISPRS Int. J. Geo-Inf. - ISSN 2220-9964