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Full-Text Articles in Social and Behavioral Sciences
Automatic Improvement Of Point-Of-Interest Tags For Openstreetmap Data, Sabine Storandt, Stefan Funke
Automatic Improvement Of Point-Of-Interest Tags For Openstreetmap Data, Sabine Storandt, Stefan Funke
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The user experience of any OpenStreetMap (OSM) based service heavily depends on the quality of the underlying data. If the service deals with points-of-interest (POIs), consistent and comprehensive tagging of the respective map elements is a necessary condition for a satisfying service. In this paper, we develop methods that can automatically infer tags characterizing POIs solely based on the POI names. The idea being that many POI names already contain sufficient information for tagging. For example, 'Pizzeria Bella Italia' most certainly indicates an Italian restaurant. As the OSM data contains hundred of thousands POIs for Germany alone, we aim for …
Object-Based Building Boundary Extraction From Lidar Data, You Shao, Samsung Lim
Object-Based Building Boundary Extraction From Lidar Data, You Shao, Samsung Lim
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Lidar is a remote sensing technology that uses laser beams to generate high-accuracy, three-dimensional (3D) information of the Earth. As urban areas are developing and expanding rapidly, lidar applications such as 3D building modelling and city mapping are of increasing importance. Hence building boundary extraction is one of the main applications of lidar in civil engineering and urban planning projects. In this paper, three boundary extraction algorithms including an alpha-shape algorithm, a modified concave hull algorithm and a grid-based algorithm are tested to assess their object-by-object accuracy. The alpha-shape algorithm generates reliable boundaries for most of sample buildings, while the …
Usability Engineering For Successful Open Citizen Science, Jan Alexander Wirwahn, Thomas Bartoschek
Usability Engineering For Successful Open Citizen Science, Jan Alexander Wirwahn, Thomas Bartoschek
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Do-it-yourself construction kits for sensor stations is a novel approach for citizen driven sensor networks. In this paper we present the development of SenseBox, a toolkit for open source sensor applications. We provide manuals and open source toolkits for hardware makers to establish a large scale sensor network in Germany, and additionally for schools to teach secondary school students programming in a playful and simple way based on open source microcontrollers. All collected data is open and being published on OpenSenseMap, our platform for open sensor data. After a test phase where we equipped citizens with construction kits for continuous …
The Development Of Web3d-Based Open-Pit Mine Monitoring System, Se-Yul Kim, Dong-Gook Lee, Jung-Bin Lee, Byung-Jin Jang, Ji-Ho You, Hyun-Jik, Lee
The Development Of Web3d-Based Open-Pit Mine Monitoring System, Se-Yul Kim, Dong-Gook Lee, Jung-Bin Lee, Byung-Jin Jang, Ji-Ho You, Hyun-Jik, Lee
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Large-scale open-pit mines are critical infrastructure for acquiring natural resources. However, this type of mine can experience environmental and safety problems during operations and thus requires continuous monitoring. In this study, a web three-dimensional(3D)-based monitoring system is constructed using geospatial information open platform and open-source geospatial information software which targets open-pit mines in Gangwon-do, Korea. The purpose is to develop a monitoring system of open-pit mines that enables any person to monitor the topographic and environmental changes caused by mine operations and to develop and restore the area’s ecology. Open-pit mines were classified into active or inactive mines and monitoring …
The Integration Of Heterogeneous Open Source Software To Develop An Urban Simulation Model, Donghan Kim
The Integration Of Heterogeneous Open Source Software To Develop An Urban Simulation Model, Donghan Kim
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Recent development of open source geospatial software offers new opportunities for the spatial analysis and urban modeling fields. The use of open source software enables analysts and modelers to build dedicated and advanced models through computer programing. However, many open source geospatial software usually provides building blocks for the static data management, analysis, and visualisation. Hence, development of dynamic simulation model with open source geospatial software is not yet fully fledged. The goals of this study are twofold. Firstly, it aims to develop a dynamic urban growth simulation model by using and integrating heterogeneous open source software. Secondly, by doing …
Performance Analysis Of Mongodb Vs. Postgis/Postgresql Databases For Line Intersection And Point Containment Spatial Queries, Sarthak Agarwal, Ks Rajan
Performance Analysis Of Mongodb Vs. Postgis/Postgresql Databases For Line Intersection And Point Containment Spatial Queries, Sarthak Agarwal, Ks Rajan
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Relational databases have been around for a long time and Spatial databases have exploited this feature for close to two decades. The recent past has seen the development of NoSQL non-relational databases, which are now being adopted for spatial object storage and handling too. And this is gaining ground in the context of increased shift towards GeoSpatial Web Services on both the Web and mobile platforms especially in the usercentric services, where there is a need to improve the query response time. While SQL databases face scalability and agility challenges and fail to take the advantage of the cheap memory …
Generating Geospatial Footprints For Geoparsed Text From Crowdsourced Platial Data, Ahmad O. Aburizaiza, Matthew T. Rice, Michael F. Goodchild
Generating Geospatial Footprints For Geoparsed Text From Crowdsourced Platial Data, Ahmad O. Aburizaiza, Matthew T. Rice, Michael F. Goodchild
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The research paper reports on the generation of geospatial footprints from geoparsed text associated with geocrowdsourced platial data collected and stored in the George Mason University Geocrowdsourcing Testbed (GMU-GcT). The GMU-GcT facilitates study of social dynamics, quality assessment, data contribution patterns, and position validation for geocrowdsourced geo data, with a primary purpose of mapping transient obstacles and navigation hazards in a dynamic urban environment. This paper reports on the automated generation of spatial footprints using open-source software, and discusses the role of automated spatial footprints in quality assessment for automated position validation. A detailed, local gazetteer is used to store …
A Comparison Of Image Aligning And Correcting Software With An Unmanned Aerial System, Kangsan Lee, Jinwoo Park, Jinmu Choi
A Comparison Of Image Aligning And Correcting Software With An Unmanned Aerial System, Kangsan Lee, Jinwoo Park, Jinmu Choi
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
In the past few decades, many kinds of UAS for image acquisition have been developed. But software for image aligning and correcting is mostly high-cost commercial. This problem caused the cost-problem in using UAS. Nowadays, a variety of software, not only commercial but also open-source, provides powerful image processing tool. There are a number of software to support image processing. In this study,five popular programs are tested for comparison. The goal of this study is to compare popular open-source software based on the ease use, overall accuracy and processing time for chunk of images from UAS.
Dynamic Styling For Thematic Mapping, Simon Moncrieff, Elizabeth-Kate Gulland
Dynamic Styling For Thematic Mapping, Simon Moncrieff, Elizabeth-Kate Gulland
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Current web standards have facilitated the online production and publication of thematic maps as a useful aid to interpretation of spatial data and decision making. Patterns within the raw data can be highlighted with careful styling choices, which can be defined for online maps using tools such as Styled Layer Descriptor (SLD) XML schema. Dynamic generation of maps and map styles extends their use beyond static publication and into exploration of data which may require multiple styles and visualisations for the same set of data. This paper explores the application of thematic styling options to online data, including mapping services …
Advances In Civic Co-Management Within The Geospatial Ecosystem Applied To Disaster Risk Management, Tomas Holderness, Etienne Turpin, Rohan Wickramasuriya, Matthew Berryman
Advances In Civic Co-Management Within The Geospatial Ecosystem Applied To Disaster Risk Management, Tomas Holderness, Etienne Turpin, Rohan Wickramasuriya, Matthew Berryman
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The use of mobile devices for identifying risk and coordinating disaster response is well accepted and has been proven as a critical element in disaster risk management. As new tools, applications, and software are adopted by municipal governments and NGOs for the identification and management of urban risk, the need for greater integration of the various data they collect becomes acute. While the challenge of integrated data management is substantial, it is aided by the fact that many new tools have been developed to include an Application Programming Interface (API), which allows the machine-to-machine (i.e. automated) sharing of open data. …
An Open-Source Webgis Platform For Rapid Disaster Impact Assessment, Roya Olyazadeh, Zar Chi Aye, Michel Jaboyedoff, Marc-Henri Derron
An Open-Source Webgis Platform For Rapid Disaster Impact Assessment, Roya Olyazadeh, Zar Chi Aye, Michel Jaboyedoff, Marc-Henri Derron
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Natural disaster impacts have increased worldwide in the past decades. Earthquake is one of the disasters that have been studied for real-time analysis and crisis management. Disaster-related losses have been examined by the damage extent of the houses, infrastructures, fatalities and injuries converted to financial losses. WebGIS technologies provide a wide range of solutions to map those damages, analyse data and publish the results. Open-Source tools and data have been widely used today because they stay free and facilitate access to data especially significant in developing countries. This research presents a WebGIS prototype using Open-Source Geo-Spatial technologies such as PostGIS, …
An Open Source Web Service For Registering And Managing Environmental Samples, Anusuriya Devaraju, Jens Klump, Pavel Golodoniuc
An Open Source Web Service For Registering And Managing Environmental Samples, Anusuriya Devaraju, Jens Klump, Pavel Golodoniuc
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Records of environmental samples, such as minerals, soil, rocks, water, air and plants, are distributed across legacy databases, spreadsheets or other proprietary data systems. Sharing and integration of the sample records across the Web requires globally unique identifiers. These identifiers are essential in order to locate samples unambiguously and to manage their associated metadata and data systematically. The International Geo Sample Number (IGSN) is a persistent, globally unique label for identifying environmental samples. IGSN can be resolved to a digital representation of the sample through the Handle system. IGSN names are registered by end-users through allocating agents, which are the …
Landmark Based Path Planning And Linear Path Generation For Mobile Map Applications, Thejaka Mahaulpatha, Pasindu Chandrasekara, Dananjaya Thathsara, Irendra Koswatta, Nimalika Fernando
Landmark Based Path Planning And Linear Path Generation For Mobile Map Applications, Thejaka Mahaulpatha, Pasindu Chandrasekara, Dananjaya Thathsara, Irendra Koswatta, Nimalika Fernando
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Landmarks are yet to be integrated with mainstream mobile phone based navigation aids. In geographical regions where land marks are commonly used by the community for navigation support, the lack of them in electronic navigation aids make them less useful for such communities. In this study a land marks based navigation model is derived considering the value of them for local community in Sri Lanka. The landmarks can be prominent or not, make sense only during certain time of the day or been important differently for people with different age groups. We assume that the attributes of landmarks can be …
Developing A Land Use Database Of The Kanto Region, Japan In The 1880'S, Nobusuke Iwasaki, David Spraguea, Naoko Fujita, Ikuhiro Teramoto, Hiroshi Yamaguchi
Developing A Land Use Database Of The Kanto Region, Japan In The 1880'S, Nobusuke Iwasaki, David Spraguea, Naoko Fujita, Ikuhiro Teramoto, Hiroshi Yamaguchi
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Historical land use records are valuable information for biodiversity protection, disaster management, rural area planning and many other uses. The Rapid Survey Maps (RSM) that were surveyed in the 1880’ s (early Meiji Era), are the first modern cartographical map series of Japan and important sources of information on traditional land use in early modern Japan. We had been analyzing these maps based on polygon data and raster based Web-GIS System to disseminate the Rapid Survey Maps using FOSS4G, but, these are difficult to apply for quantitative analyses of land use change. Thus, we developed a grid based land use …
Evaluation Of An Open-Source Collaborative Webgis Prototype In Risk Management With Students, Zar Chi Aye, Marie Charrière, Roya Olyazadeh, Marc-Henri Derron, Michel Jaboyedoff
Evaluation Of An Open-Source Collaborative Webgis Prototype In Risk Management With Students, Zar Chi Aye, Marie Charrière, Roya Olyazadeh, Marc-Henri Derron, Michel Jaboyedoff
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Over the past decades, advancements in web services and web-based geospatial technologies have led to increasing delivery, access and analysis of rich spatial information over the web. With the use of open access data and open-source technology, it has become possible to make better, transparent and informed decisions for policy and decision makers. Under the framework of the European Marie Curie CHANGES project, a prototype web-based collaborative decision support platform was developed for the evaluation and selection of risk management strategies, mainly targeting flood and landslide hazards. The design of the conceptual framework was based on the initial feedback and …
Opensensemap - A Citizen Science Platform For Publishing And Exploring Sensor Data As Open Data, Matthias Pfeil, Thomas Bartoschek, Jan Alexander Wirwahn
Opensensemap - A Citizen Science Platform For Publishing And Exploring Sensor Data As Open Data, Matthias Pfeil, Thomas Bartoschek, Jan Alexander Wirwahn
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
A plethora of citizen science sensor platforms for dierent use-cases already exist. They provide cheap, precongured, plug and playable hardware and software solutions. Using data from multiple platforms and resources can be a challenging task in respect of discovering, exploring, downloading and converting. This work aims to implement a one-stop-shop for sensor data that tries to tackle these problems. Therefore a basic data schema capable of metadata is established that allows publishing generic sensor platforms and sensor data. For exploration a web platform is implemented based on common web standards. This work describes the requirements, design and implementation of the …
Integrating Open Source Gis Software In Undergraduate Curriculum, Research, And Outreach - Recent Experiences At Salisbury University, Arthur J. Lembo, Jr.
Integrating Open Source Gis Software In Undergraduate Curriculum, Research, And Outreach - Recent Experiences At Salisbury University, Arthur J. Lembo, Jr.
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The Department of Geography and Geosciences at Salisbury University has a long tradition of teaching geographic information science. Until recently, most of the courses and research activities focused on commercial software offerings. However, the Department recently integrated Free and Open Source Software for GIS (FOSSG) into its curriculum, research, and outreach. Curriculum changes included introducing students to FOSSG in traditional GIS courses using QGIS, and creating two entirely new courses in Enterprise GIS and GIS Programming using PostGIS, GDAL, and Spatial Lite. Through a competitive National Science Foundation (NSF) Research Experience for Undergraduates grant (REU), students participated in cutting edge …
Results Of And Evaluation Of Augmented Reality Mobile Development Frameworks For Addresses In Augmented Reality, Danie Jooste, Victoria Rautenbach, Serena Coetzee
Results Of And Evaluation Of Augmented Reality Mobile Development Frameworks For Addresses In Augmented Reality, Danie Jooste, Victoria Rautenbach, Serena Coetzee
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Addresses displayed on dwellings and buildings play a key role in society. Amongst others, they are used for deliveries, in household surveys, to navigate, or to find friends. Sometimes, address signs are destroyed, displaced or illegible, for example, as a result of vandalism, disasters, or poor maintenance. In augmented reality, computer-generated information is superimposed onto a live view of the real world. When address signs are not available, displaying the address in augmented reality could be immensely useful. The research presented in this article is part of a larger research endeavour to investigate augmented reality for addressing. This article presents …
A Cross National Comparison On The Awareness Of Adopting Foss4g To Nsdi In Developing Countries, Junyoung Choi, Jaesung Ahn, Hyungtae Kim
A Cross National Comparison On The Awareness Of Adopting Foss4g To Nsdi In Developing Countries, Junyoung Choi, Jaesung Ahn, Hyungtae Kim
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
In this study, we constructed an assessment framework that was consisted of 9 indicators about functional, economic and public value for FOSS4G adoption to NSDI and alternatives such as data sharing, data management, utilization and construction and derived relative weights using AHP method. For the AHP, we conducted a survey to developing countries’ 10 respondents from 9 Asian and Latin American countries. Firstly, result of the survey showed that economic value indicator came in the highest weight with 0.425, followed by functional value indicator with 0.345 and public value indicator with 0.230. Secondly, result of the alternatives analysis showed that …
Freewat: Free And Open Source Tools For Water Resource Management, Massimiliano Cannata, Iacopo Borsi, Laura Foglia, Violeta Velasco Mansilla, Rudy Rossetto
Freewat: Free And Open Source Tools For Water Resource Management, Massimiliano Cannata, Iacopo Borsi, Laura Foglia, Violeta Velasco Mansilla, Rudy Rossetto
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
This talk will present FREEWAT: an HORIZON 2020 project financed by the EU Commission under the call WATER INNOVATION: BOOSTING ITS VALUE FOR EUROPE. FREEWAT main result will be an open source and public domain GIS integrated modelling environment for the simulation of water quantity and quality in surface water and groundwater with an integrated water management and planning module. FREEWAT aims at promoting water resource management by simplifying the application of the Water Framework Directive and other EU water related Directives. Specific objectives of the FREEWAT project are: to coordinate previous EU and national funded research to integrate existing …
An On-Board Visual-Based Attitude Estimation System For Unmanned Aerial Vehicle Mapping, M. Ridhwan Tamjis, Samsung Lim
An On-Board Visual-Based Attitude Estimation System For Unmanned Aerial Vehicle Mapping, M. Ridhwan Tamjis, Samsung Lim
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
This paper evaluates the performances of several salient feature detectors, namely; Harris detector, Minimum Eigenvalue (MinEig), Scale Invariant Feature Transform (SIFT), Maximally Stable Extremal Region (MSER), Speeded Up Robust Feature (SURF), Features from Accelerated Segment Test (FAST), and Binary Robust Scale Invariant Keypoint (BRISK), in order to assess the suitability in the application of the proposed visual-based attitude estimation system. Throughout the experiment, three main requirements have been investigated which include Time-to-Complete (TTC), detection rate, and matching rate. It was found that SURF fulfills each of the system’s requirements. Moreover, it was also found that keypoints detection capabilities affect the …
Geosocial Big Data Analysis Using Python And Foss4g With The Case Study Of Korean Data, Ilyoung Hong
Geosocial Big Data Analysis Using Python And Foss4g With The Case Study Of Korean Data, Ilyoung Hong
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Nowadays, there are many researches on the analysis of Geosocial big data, such as geotweeet and as foursquare venues and OSS(Open Source Software) has an important role on this. In the analyzing geosocial big data, there are several different steps such as data collection, data parsing, data conversion, statistical analysis, visualizing and database management. So, the integrated system architecture and the compatible analysis environment has a key role to acquire the relevant analysis results. The Python programming support the interoperable analysis environment for the various and different software functions and enable to process for geosocial big data in the integrated …
Modifications To Web Processing Service Standard For Client-Side Geoprocessing, Evgeny Panidi, Eduard Kazakov, Anton Terekhov, Evgeny Kapralov
Modifications To Web Processing Service Standard For Client-Side Geoprocessing, Evgeny Panidi, Eduard Kazakov, Anton Terekhov, Evgeny Kapralov
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Nowadays we see the rapid growth of solutions number for geospatial data processing in the Web (i.e. geoprocessing). One of the main trends of Web geotechnologies evolution is the transition from Web map applications to the Web GIS applications, which are supplement the maps delivery with the analytic tools providing to the end user through Web interface. In fact, the only general open standard describes implementation rules for Web geoprocessing services. This is the Open Geospatial Consortium Web Processing Service standard, which is fully server-oriented. Moreover, the vast majority of currently used solutions (both open source and proprietary) are server-oriented, …
An Evaluation Of Open Source Geographic Information Systems Routing Tools In Vaccine Delivery In Kano State, Northern Nigeria, Kehinde A. Adewara
An Evaluation Of Open Source Geographic Information Systems Routing Tools In Vaccine Delivery In Kano State, Northern Nigeria, Kehinde A. Adewara
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The recent proliferation of online/desktop/mobile open source geographic information systems (GIS)routing tools such as qgis road graph plugin (QRG), open street routing machine (OSRM), google maps engine (GME), graphhopper (GH), and Osm And has led to the need to provide a method for comparatively evaluating the strength and weakness of these routing tools. This is crucial in view of its implication on the prospect and otherwise of routing related projects such as supply chain logistics, supply/delivery operations, and emergency services, among others. In this paper, comparative evaluation of these tools has been carried out using drive test survey and desktop …
Evaluating Flood Hazard Potential In Danang City, Vietnam Using Foss4g, An Tran Thi, Venkatesh Raghavan, Shinji Masumoto, Susumu Nonogaki, Tatsuya Nemoto, Vinayaraj Poliyapram, Go Yonezawa
Evaluating Flood Hazard Potential In Danang City, Vietnam Using Foss4g, An Tran Thi, Venkatesh Raghavan, Shinji Masumoto, Susumu Nonogaki, Tatsuya Nemoto, Vinayaraj Poliyapram, Go Yonezawa
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Floodplain in the alluvial lowland coastal area in the south of Danang City is a part of Vu Gia - Thu Bon river basin where is affected by serious and repetitive flood hazard. The topography and geomorphology which directly related to flood hazard but such relationship are still poorly understood. This study aims to measure flood inundation during a flood event in 2007 and estimate the potential flood hazard areas. ALOS PALSAR imageries were used for observing flood inundation dynamics. A 5m resolution DEM of study area were generated using field survey elevation points data and BS-Horizon interpolation method (Nonogaki …
Analysis Of Spatial Density Utilizing The Big Data Of Floating Population Of Seoul City, Hailin Kim
Analysis Of Spatial Density Utilizing The Big Data Of Floating Population Of Seoul City, Hailin Kim
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The goal of this research is to support spatial decision that deals with foreign tourists’ inconveniences in Seoul City—associated with place—by using data mining technology. The analysis of domestic mobile phone records of foreign tourists not only produces the number of floating population demonstrated in the aspect of its nationality and time period, but also conducts the spatiotemporal localization of foreign visitors. R-Studio, a statistical computing software, is used to analyze the spatial density from the call traffic; QGIS, an open-source Geographic Information System(GIS) software, is useful in displaying the data on a map. As a result, fourteen areas, where …
Geo-Based Image Analysis Service In Open Source Cloud Computing Environment, Sanggoo Kang, Guseon Yoon, Kiwon Lee
Geo-Based Image Analysis Service In Open Source Cloud Computing Environment, Sanggoo Kang, Guseon Yoon, Kiwon Lee
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Globally, cloud computing is one of huge trends in ICT communities, exerting its influence on the most information application fields including geo-spatial domain. In general, cloud computing services are being regarded as commercial or public internet data center or infrastructure of computing resources. However, there is no limitation for applications of cloud computing. Especially, it is on the early developing stage in geo-based applications. This project is to present a practical application for geo-based image processing and analysis on open source cloud environment. OpenStack Juno version was applied for open source cloud computing environment. On this cloud environment, PostgreSQL and …
Semi-Automated Building Footprint Extraction, Delineation And 3d Visualisation Of The University Of The Philippines Main Campus From Lidar Data Using Gis-Based Open Source Software, Jara Kaye Villanueva, Ma. Rosario Concepcion Ang, Loureal Camille Inocencio, Ma. Victoria Rejuso
Semi-Automated Building Footprint Extraction, Delineation And 3d Visualisation Of The University Of The Philippines Main Campus From Lidar Data Using Gis-Based Open Source Software, Jara Kaye Villanueva, Ma. Rosario Concepcion Ang, Loureal Camille Inocencio, Ma. Victoria Rejuso
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
The advent of three-dimensional building footprint extraction and visualization has recently been explored due to its applications in urban planning, transportation, environmental monitoring, and modelling. Through the use of LiDAR (Light Detection and Ranging) data products such as Digital Terrain Model (DTM) and Digital Surface Model (DSM), useful information such as elevation, size, and shape can be obtained from the processed point clouds. Different studies regarding building extraction procedures have been conducted and explored. Algorithms have also been developed using LiDAR and GIS-based software that assume a rectangular form of polygons as building structures. As such, this study discusses an …
Mobile Application Of Open Source Stack To Geo-Based Data Visualisation On E-Government Web Framework, Kwangseob Kim, Hansaem Park, Kiwon Lee
Mobile Application Of Open Source Stack To Geo-Based Data Visualisation On E-Government Web Framework, Kwangseob Kim, Hansaem Park, Kiwon Lee
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
Mobile web technologies by diverse open sources are expanding and developing so fast. Furthermore, open data policy of public organizations and governments in many countries prevails. In Korea, e-government standard framework has been developed based on Spring Framework and distributed to improve implementation efficiency of web-based information systems for public domains. For wide applications and adoption of this webframework, e-government standard framework for mobile environment was also released. These trends evoke new type of geo-based applications, and practical cases are being implemented. This open source project is for data visualization on mobile, which reflects these aspects. For implementation, open source …
Building A Time Server With Raspberrypi & Gps, Connecting With A Free Web Gis Software, Orkut Murat Yilmaz, Kerem Halicioglu, Osman Bal, Ayca Eraslan, Ahmet Alper Yilmaz, Wumiti Julaiti, Nicholas Paul Libassi
Building A Time Server With Raspberrypi & Gps, Connecting With A Free Web Gis Software, Orkut Murat Yilmaz, Kerem Halicioglu, Osman Bal, Ayca Eraslan, Ahmet Alper Yilmaz, Wumiti Julaiti, Nicholas Paul Libassi
Free and Open Source Software for Geospatial (FOSS4G) Conference Proceedings
In this study, we have organized a revival project for Time Synchronization and used a Raspberry PI & GPS Module to capture The GPS Signal and parsed the Signal for building NTP Server. After building NTP Server, we are going to make a GPS handset by adding touch screens to our Raspberry Pis and we're going to use this handset for locating the trees at the Kandilli Observatory and Earthquake Research Institute Campus. At the end, collected the data will be used at the free and open source web GIS software for our project.