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ISPRS International Journal of Geo-Information, Volume 11, Issue 8

August 2022 - 43 articles

Cover Story: Digital maps are used daily by millions of users. Verifying the quality and consistency of route data is becoming more and more important. In this paper, we introduce a novel geospatial data analysis system that is based on road directionality. We investigate our Road Directionality Quality System (RDQS) using multiple map providers. Results from the experiments conducted show that our detection neural network can detect an arrow's position and direction in map images with >90% F1-Score. We then utilized this model to analyze map images in six different regions. Our findings show that our approach can reliably assess map quality and discover discrepancies in road directionality across different map providers. We report the percentage of discrepancies found between map providers using this approach in a proposed study area. View this paper
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Articles (43)

  • Article
  • Open Access
34 Citations
3,668 Views
22 Pages

The division of the territorial space functional area is the primary method to study the rational exploitation and use of land space. The research on the Production–Living–Ecological Space (PLES) change and its motivating factors has majo...

  • Article
  • Open Access
4 Citations
5,279 Views
18 Pages

Factors That Affect Spatial Data Sharing in Malaysia

  • Qasim Hamakhurshid Hamamurad,
  • Normal Mat Jusoh and
  • Uznir Ujang

This paper examines the phenomena of the local government’s inadequate reaction to the national programme of geographical infrastructure for the effective sharing of spatial data in Malaysia. We investigate the determinants of sharing data for...

  • Article
  • Open Access
17 Citations
8,257 Views
25 Pages

The classification of maritime boats and ship targets using optical satellite imagery is a challenging subject. This research introduces a unique and rich ship dataset named Very High-Resolution Ships (VHRShips) from Google Earth images, which includ...

  • Article
  • Open Access
7 Citations
4,158 Views
18 Pages

The floating population is frequently treated as a homogeneous whole to explore its impact on crime in numerous crime studies in China. However, there are different compositions within the floating population and significant differences in the effect...

  • Article
  • Open Access
14 Citations
5,131 Views
21 Pages

Due to extensive population growth, urbanization increases urban development and sprawl in the world’s cities. Urban sprawl is a socioeconomic phenomenon that has not extensively incorporated socioeconomic factors in the prediction of most of t...

  • Article
  • Open Access
5 Citations
3,464 Views
18 Pages

High-Precision Dynamic Traffic Noise Mapping Based on Road Surveillance Video

  • Yanjie Sun,
  • Mingguang Wu,
  • Xiaoyan Liu and
  • Liangchen Zhou

High-precision dynamic traffic noise maps can describe the spatial and temporal distributions of noise and are necessary for actual noise prevention. Existing monitoring point-based methods suffer from limited spatial adaptability, and prediction mod...

  • Article
  • Open Access
2 Citations
2,983 Views
13 Pages

With the popularity of location-based social networks such as Weibo and Twitter, there are many records of points of interest (POIs) showing when and where people have visited certain locations. From these records, next POI recommendation suggests th...

  • Article
  • Open Access
2 Citations
3,232 Views
16 Pages

Raster Map Line Element Extraction Method Based on Improved U-Net Network

  • Wenjing Ran,
  • Jiasheng Wang,
  • Kun Yang,
  • Ling Bai,
  • Xun Rao,
  • Zhe Zhao and
  • Chunxiao Xu

To address the problem of low accuracy in line element recognition of raster maps due to text and background interference, we propose a raster map line element recognition method based on an improved U-Net network model, combining the semantic segmen...

  • Article
  • Open Access
39 Citations
5,683 Views
25 Pages

We studied some exposures of the Roccacaramanico Conglomerate (RCC), a calcareous-clastic mega-bed intercalated within the Late Messinian–Early Pliocene pelitic succession of the La Queglia and Maiella tectonic units (central Apennines). The ou...

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