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You searched for: Journal name ISPRS international journal of geo-information Remove constraint Journal name: ISPRS international journal of geo-information Publication year rev 7982-2018 Remove constraint Publication year rev: 7982-2018 Source 2018 v.7 no.12 Remove constraint Source: 2018 v.7 no.12
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1. A Parallel-Computing Approach for Vector Road-Network Matching Using GPU Architecture

Author:
Bo Wan; Lin Yang; Shunping Zhou; Run Wang; Dezhi Wang; Wenjie Zhen
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; data collection; roads
Abstract:
... The road-network matching method is an effective tool for map integration, fusion, and update. Due to the complexity of road networks in the real world, matching methods often contain a series of complicated processes to identify homonymous roads and deal with their intricate relationship. However, traditional road-network matching algorithms, which are mainly central processing unit (CPU)-based a ...
DOI:
10.3390/ijgi7120472

2. A Remote Sensing Algorithm of Column-Integrated Algal Biomass Covering Algal Bloom Conditions in a Shallow Eutrophic Lake

Author:
Jing Li; Ronghua Ma; Kun Xue; Yuchao Zhang; Steven Loiselle
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algae; algal blooms; algorithms; biomass; eutrophication; hydrology; lakes; phytoplankton; remote sensing; surveys; China
Abstract:
... Column integrated algal biomass provides a robust indicator for eutrophication evaluation because it considers the vertical variability of phytoplankton. However, most remote sensing-based inversion algorithms of column algal biomass assume a homogenous distribution of phytoplankton within the water column. This study proposes a new remote sensing-based algorithm to estimate column integrated alga ...
DOI:
10.3390/ijgi7120466

3. Air Pollution Dispersion Modelling Using Spatial Analyses

Author:
Jan Bitta; Irena Pavlíková; Vladislav Svozilík; Petr Jančík
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
air pollution; air quality; land cover; land use; models
Abstract:
... Air pollution dispersion modelling via spatial analyses (Land Use Regression—LUR) is an alternative approach to the standard air pollution dispersion modelling techniques in air quality assessment. Its advantages are mainly a much simpler mathematical apparatus, quicker and simpler calculations and a possibility to incorporate more factors affecting pollutant’s concentration than stand ...
DOI:
10.3390/ijgi7120489

4. An Architecture for Mobile Outdoors Augmented Reality for Cultural Heritage

Author:
Chris Panou; Lemonia Ragia; Despoina Dimelli; Katerina Mania
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
computer software; historic sites; models; monuments; tourists; Crete; Greece
Abstract:
... In this paper, we present the software architecture of a complete mobile tourist guide for cultural heritage sites located in the old town of Chania, Crete, Greece. This includes gamified components that motivate the user to traverse the suggested interest points, as well as technically challenging outdoors augmented reality (AR) visualization features. The main focus of the AR feature is to super ...
DOI:
10.3390/ijgi7120463

5. Combining the Two-Layers PageRank Approach with the APA Centrality in Networks with Data

Author:
Taras Agryzkov; Francisco Pedroche; Leandro Tortosa; José F. Vicent
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; data collection; models; topology
Abstract:
... Identifying the influential nodes in complex networks is a fundamental and practical topic at the moment. In this paper, a new centrality measure for complex networks is proposed based on two contrasting models that have their common origin in the well-known PageRank centrality. On the one hand, the essence of the model proposed is taken from the Adapted PageRank Algorithm (APA) centrality, whose ...
DOI:
10.3390/ijgi7120480

6. Creating a Story Map Using Geographic Information Systems to Explore Geomorphology and History of Methana Peninsula

Author:
Varvara Antoniou; Lemonia Ragia; Paraskevi Nomikou; Pavlina Bardouli; Danai Lampridou; Theodora Ioannou; Ilias Kalisperakis; Christos Stentoumis
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Internet; biodiversity; flora; geographic information systems; geomorphology; historical monuments; information dissemination; man-made trails; spatial data; thematic maps; volcanic land
Abstract:
... Story maps are used as an interactive tool for communication and information dissemination. A web-based application using story mapping technology is presented to explore the Methana peninsula. This volcanic area is characterized by specific volcanic geoforms, unique flora and rich history. The story map combines maps, narrative texts and multimedia content. The spatial data produce thematic maps ...
DOI:
10.3390/ijgi7120484

7. HiBuffer: Buffer Analysis of 10-Million-Scale Spatial Data in Real Time

Author:
Mengyu Ma; Ye Wu; Wenze Luo; Luo Chen; Jun Li; Ning Jing
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
computer simulation; data collection; geographic information systems; spatial data
Abstract:
... Buffer analysis, a fundamental function in a geographic information system (GIS), identifies areas by the surrounding geographic features within a given distance. Real-time buffer analysis for large-scale spatial data remains a challenging problem since the computational scales of conventional data-oriented methods expand rapidly with increasing data volume. In this paper, we introduce HiBuffer, a ...
DOI:
10.3390/ijgi7120467

8. Identification of Experimental and Control Areas for CCTV Effectiveness Assessment—The Issue of Spatially Aggregated Data

Author:
Adam Dąbrowski; Piotr Matczak; Andrzej Wójtowicz; Michael Leitner
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
cameras; cities; crime; data quality; geographical coordinates; landscapes; monitoring; police; television; time series analysis; Poland
Abstract:
... Progress in surveillance technology has led to the development of Closed-Circuit Television (CCTV) systems in cities around the world. Cameras are considered instrumental in crime reduction, yet existing research does not unambiguously answer the question whether installing them affects the number of crimes committed. The quasi-experimental method usually applied to evaluate CCTV systems’ ef ...
DOI:
10.3390/ijgi7120471

9. Identifying Urban Functional Zones Using Public Bicycle Rental Records and Point-of-Interest Data

Author:
Xiaoyi Zhang; Wenwen Li; Feng Zhang; Renyi Liu; Zhenhong Du
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
planning; residential areas; travel; land use; China
Abstract:
... Human mobility data have become an essential means to study travel behavior and trip purpose to identify urban functional zones, which portray land use at a finer granularity and offer insights for problems such as business site selection, urban design, and planning. However, very few works have leveraged public bicycle-sharing data, which provides a useful feature in depicting people’s shor ...
DOI:
10.3390/ijgi7120459

10. Multi-Scale and Multi-Sensor 3D Documentation of Heritage Complexes in Urban Areas

Author:
Arnadi Murtiyoso; Pierre Grussenmeyer; Deni Suwardhi; Rabby Awalludin
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
buildings; cameras; case studies; cultural heritage; data collection; multivariate analysis; scanners; tropics; unmanned aerial vehicles; urban areas; weather; Indonesia
Abstract:
... The 3D documentation of heritage complexes or quarters often requires more than one scale due to its extended area. While the documentation of individual buildings requires a technique with finer resolution, that of the complex itself may not need the same degree of detail. This has led to the use of a multi-scale approach in such situations, which in itself implies the integration of multi-sensor ...
DOI:
10.3390/ijgi7120483

11. Reduction of Map Information Regulates Visual Attention without Affecting Route Recognition Performance

Author:
Julian Keil; Franz-Benjamin Mocnik; Dennis Edler; Frank Dickmann; Lars Kuchinke
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Internet; artificial intelligence; cartography; geographic information systems; image analysis; spatial data
Abstract:
... Map-based navigation is a diverse task that stands in contradiction to the goal of completeness of web mapping services. As each navigation task is different, it also requires and can dispense with different map information to support effective and efficient wayfinding. Task-oriented reduction of the elements displayed in a map may therefore support navigation. In order to investigate effects of m ...
DOI:
10.3390/ijgi7120469

12. A Framework for Visual Analytics of Spatio-Temporal Sensor Observations from Data Streams

Author:
Bolelang H. Sibolla; Serena Coetzee; Terence L. Van Zyl
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Internet; computer simulation; computer vision; spatial data; time series analysis
Abstract:
... Sensor networks generate substantial amounts of frequently updated, highly dynamic data that are transmitted as packets in a data stream. The high frequency and continuous unbound nature of data streams leads to challenges when deriving knowledge from the underlying observations. This paper presents (1) a state of the art review into visual analytics of geospatial, spatio-temporal streaming data, ...
DOI:
10.3390/ijgi7120475

13. Assessment of Displacements of Linestrings Based on Homologous Vertexes

Author:
Antonio Tomás Mozas-Calvache; Francisco Javier Ariza-López
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; data collection; geometry; viability
Abstract:
... This study describes a new method that was developed in order to assess the displacements between two linestrings that represent the same element in two datasets based on their shape. Until now, all existing line-based methods have been focused on the calculation of distances or buffer inclusions between the two linestrings. However, these approaches assess a spatial difference between two linestr ...
DOI:
10.3390/ijgi7120473

14. AutoCloud+, a “Universal” Physical and Statistical Model-Based 2D Spatial Topology-Preserving Software for Cloud/Cloud–Shadow Detection in Multi-Sensor Single-Date Earth Observation Multi-Spectral Imagery—Part 1: Systematic ESA EO Level 2 Product Generation at the Ground Segment as Broad Context

Author:
Andrea Baraldi; Dirk Tiede
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; cognition; computer software; computer vision; issues and policy; readability; remote sensing; satellites; systems engineering; thematic maps; topography
Abstract:
... The European Space Agency (ESA) defines Earth observation (EO) Level 2 information product the stack of: (i) a single-date multi-spectral (MS) image, radiometrically corrected for atmospheric, adjacency and topographic effects, with (ii) its data-derived scene classification map (SCM), whose thematic map legend includes quality layers cloud and cloud–shadow. Never accomplished to date in an ...
DOI:
10.3390/ijgi7120457

15. Automatic Classification of Major Urban Land Covers Based on Novel Spectral Indices

Author:
Mst Ilme Faridatul; Bo Wu
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Landsat; automation; decision support systems; land cover; monitoring; support vector machines; temporal variation; terrestrial ecosystems; urban areas; urbanization; vegetation; vegetation index; Bangladesh; China
Abstract:
... Urban land cover classification and mapping is an important and ongoing research field in monitoring and managing urban sprawl and terrestrial ecosystems. The changes in land cover largely affect the terrestrial ecosystem, thus information on land cover is important for understanding the ecological environment. Quantification of land cover in urban areas is challenging due to their diversified act ...
DOI:
10.3390/ijgi7120453

16. CATCHA: Real-Time Camera Tracking Method for Augmented Reality Applications in Cultural Heritage Interiors

Author:
Piotr Siekański; Jakub Michoński; Eryk Bunsch; Robert Sitnik
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; aluminum; cameras; cultural heritage; data collection; issues and policy; models; portable equipment; scanners; Poland
Abstract:
... Camera pose tracking is a fundamental task in Augmented Reality (AR) applications. In this paper, we present CATCHA, a method to achieve camera pose tracking in cultural heritage interiors with rigorous conservatory policies. Our solution is real-time model-based camera tracking according to textured point cloud, regardless of its registration technique. We achieve this solution using orthographic ...
DOI:
10.3390/ijgi7120479

17. Cartographic Line Generalization Based on Radius of Curvature Analysis

Author:
Bogdan Kolanowski; Jacek Augustyniak; Dorota Latos
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
algorithms; computer graphics; data analysis; topographic maps
Abstract:
... Cartographic generalization is one of the important processes of transforming the content of both analogue and digital maps. The process of reducing details on the map has to be conducted in a planned way in each case when the map scale is to be reduced. As far as digital maps are concerned, numerous algorithms are used for the generalization of vector line elements. They are used if the scale of ...
DOI:
10.3390/ijgi7120477

18. Challenges of Mapping Sustainable Development Goals Indicators Data

Author:
Menno Jan Kraak; Britta Ricker; Yuri Engelhardt
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Internet; United Nations; cartography; sustainable development
Abstract:
... The global population is growing at an incomprehensible rate and with it come complex environmental consequences that often result in social injustices. The United Nations has established a set of Sustainable Development Goals (SDGs) in an attempt to ameliorate inequality and promise safety for the masses. To reach these goals, a set of indicators have been identified and their associated data for ...
DOI:
10.3390/ijgi7120482

19. Characterizing Data Ecosystems to Support Official Statistics with Open Mapping Data for Reporting on Sustainable Development Goals

Author:
Marc van den Homberg; Iryna Susha
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Internet; case studies; data collection; decision making; developing countries; development projects; drinking water; ecosystems; funding; governance; household surveys; information management; infrastructure; literacy; management systems; nongovernmental organizations; questionnaires; spatial data; statistics; sustainable development; water supply; Malawi
Abstract:
... Reporting on the Sustainable Development Goals (SDGs) is complex given the wide variety of governmental and NGO actors involved in development projects as well as the increased number of targets and indicators. However, data on the wide variety of indicators must be collected regularly, in a robust manner, comparable across but also within countries and at different administrative and disaggregate ...
DOI:
10.3390/ijgi7120456

20. Checking the Consistency of Volunteered Phenological Observations While Analysing Their Synchrony

Author:
Hamed Mehdipoor; Raul Zurita-Milla; Ellen-Wien Augustijn; Arnold J. H. van Vliet
Source:
ISPRS international journal of geo-information 2018 v.7 no.12 pp. -
ISSN:
2220-9964
Subject:
Anemone (plant); Anthriscus sylvestris; Quercus robur; computer simulation; flowering; geographical coordinates; parsley; phenology; spatial data; spring; standard deviation; temperature; volunteers; winter; Netherlands
Abstract:
... The increasing availability of volunteered geographic information (VGI) enables novel studies in many scientific domains. However, inconsistent VGI can negatively affect these studies. This paper describes a workflow that checks the consistency of Volunteered Phenological Observations (VPOs) while considering the synchrony of observations (i.e., the temporal dispersion of a phenological event). Th ...
DOI:
10.3390/ijgi7120487