Development

Efficient Vehicle Tracking with Open Source Tools

Session Type: 
Poster
Presenter(s): 
Trevor Clarke, Opticks
Roxanne Canosa

Vehicle detection and tracking is a common use for manned and unmanned airborne video systems particularly the new class of wide area persistent surveillance systems. This presentation discusses a technique for near real-time vehicle detection and tracking using open source tools such as Opticks and OpenCV. A combination of existing techniques was adapted for use with high spatial resolution and low temporal resolution data.

Speaker Bio: 

Trevor Clarke is a software engineer at Ball Aerospace & Technologies. Trevor has a masters degree in computer science from RIT and is a core contributor to Opticks.

Shortest Hyperpath search for public transportation: A java web application

Session Type: 
Poster
Presenter(s): 
MI David López Flores, Instituto de Ingeniería, Universidad Nacional Autónoma de México - Centro de Investigación en Geografía y Geomática
MCS Pablo López Ramirez

 In cities where public transport does not follow a schedule and the user can only know the frequency of each route, a web tool was programmed to indicate the shortest routes where it’s considered more than one mode of transport and more than one possible combination of modes to reach a given destination. The web application was made for the University City campus of the National Autonomous University of Mexico, where the public transports available are buses, bicycles, in addition to walking tours.

To find the shortest hyper paths the algorithm Shortest Viable Hyperpath (SVH) of A. Lozano & G. Storchi (Lozano, A. & Storchi, G. (2002), `Shortest viable hyperpath in multimodal networks', Transportation Research Part B 36, 853-874.) was adapted and programmed in Java. This Algorithm considers the frequency of buses, as well as travel times by foot, bicycle and bus. The result is a Pareto-Optimal set of ordered pairs where the first element denotes the travel time while the second denotes the number of modal transfers. Is in this set the where the user will choose the option that suits the best.

To feed the algorithm and display the results it was build a spatial database containing geographic information on bus routes, pedestrian and bicycle path. This database was constructed from the network of each one of the bus, bicycle and pedestrian routes. After some space operations, all the networks were combined to create an hyper network, where the arcs with only one tail-node and more than one head-node represents the frequency of bus lines that pass through a node. While the arcs with one tail-node and one head-node represents the travel time of each mode of transport.

Speaker Bio: 

David López Flores
Degree in mathemathics from the Universidad Nacional Autónoma de Mexico. I have a master in transport engineering. I am currently have a scholaship at the Laboratory of Transportation, Engineering Institute

Pablo López
Degree in phisics from the Universidad Nacional Autónoma de Mexico. I have a master in Geomatics. I am currently a researcher in the Centro de Investigación en Geografía y Geomática

Design and development of a SpatiaLite geodatabase data provider for the DotSpatial GIS application development framework

Session Type: 
Poster
Presenter(s): 
Jiří Kadlec, Idaho State University
Daniel Ames

Geospatial databases (geodatabases) provide an efficient method for managing large GIS datasets and allowing efficient sharing of data by multiple users. SpatiaLite is a portable file based open source geodatabase that is supported by a growing number of GIS systems. The latest platform with support for SpatiaLite is the DotSpatial system, an open source framework for creating custom GIS applications in C# or VB.NET programming languages. This presentation includes a discussion of SpatiaLite and its implementation in DotSpatial. The new SpatiaLite data provider supports creating, reading, editing and updating of vector features, executing spatial SQL queries, and efficient handling of large datasets using the R-tree spatial index. Additional built-in SpatiaLite functionality, including shapefile import and network routing is also supported. This presentation will show two custom GIS applications: A bicycle path network analysis tool and a hydrologic catchment water balance calculator. These applications demonstrate the advantages of using SpatiaLite for advanced spatial analysis tasks. By using SpatiaLite, all datasets for the custom GIS application are stored in one file, simplifying product deployment and distribution.

Speaker Bio: 

Jiří is a Ph.D student from Prague, Czech Republic currently studying and working at the Geospatial Software Lab, Idaho State University. The focus of his dissertation is internationalization of the hydrologic information system to provide free climate and hydrological data for all countries of the world with focus on Czech Republic in support of running the open source distributed rainfall-runoff models (WASIM-ETH, SWAT). He is also interested in mobile GIS, digital mapping, software architecture and design patterns, and environmental issues.

Integrating Open-Source GIS in a Computerized Blotter System

Session Type: 
Poster
Presenter(s): 
Mr Sorvigenaleon Ildefonso, Feati University
Engr Jessie Linn Ablao
Cadatal M.E.
Braceros A.D.
Castillejos C.M.C.
Ocba M.G.I.
Fuentes R.A.P.
Dalogdog R.Z.
Punongbayan A.P.
Reyes M.S.R.
Paringit M.C.R.

Public safety and security is an important issue especially to a growing metropolis such as Manila. With this, information about crimes and its analysis is of great importance not only to the police but as well as the general public. Studies show that there is a high correlation of crime and geography. Unfortunately, the current blotter system of most police precincts overlooks the accurate locations of crime. Integrating a Geographic Information System (GIS) to a blotter system will add a more accurate geographic element to each police report entered.

The system will prove useful in crime analysis and monitoring by providing dynamic crime maps. The use of Free and Open Source Software (FOSS) will ensure that the cost of the system will be kept to a minimum while still being as functional as proprietary applications.

Speaker Bio: 

Sorvigenaleon R. Ildefonso took up B.S. Geodetic Engineering at Feati University. He is interested in the fields of Geomatics, Remote Sensing and Land Surveying.

Engr. Jessie Linn P. Ablao finished B.S. Geodetic Engineering at the University of the Philippines. He teaches Geodesy, Least Squares Adjustment and GIS.

Development of QGIS plugin for an user friendly management of climatological data in Italy

Session Type: 
Poster
Presenter(s): 
Dr Tiziana De Filippis, National Research Council - Institute of Biometeorology
PerInd Leandro Rocchi
Giulio Castagnini
Fabio Straccali

The study of potential dangerous events due to extreme meteorological conditions such as hail, wind and rainfall has been made at national scale in order to define a synthetic index representing the climatological hazard for administrative units in cartographic form.

The aims of this work is to provide the insurance companies and decision makers with user friendly Open GIS tools for analysis of meteorological parameters at a municipality scale over Italy.
qSIGAV is a plugin developed in Python that is able to change the “look and feel” of QuantumGIS environment to provide a user friendly GUI and functions to perform queries on the results of climatological study.

After plugin’s installation, qSIGAV controls several components of qGIS through its API and the QgisInterface Class in order to change menu entries, functions, graphical entities obtaining a full customized GIS system.

A DBmanager component allows the users to update, insert, delete all shape files and the associated legends of climatological themes, dataset that in qGIS are manage by SQLite3 engine.

Moreover a wizard helps the user to choose the region, domain and layer to be visualized on QGIS main view. Other tools have been developed to facilitate the insurance agents in join insurance indexes with climatological data.

All system elements as well as datasets, system database, customized functions, qGIS application have been encapsulated into a personalized setup using NSIS, an Open Source system for Windows Installer creation.

qSIGAV is a complete Open Source project that opens new perspectives for developers and GIS experts for implementing more flexible and customable GIS system applications.

Speaker Bio: 

Permanent researcher at the Institute of Biometeorology - National Research Council. She focused her interests on SDI and Web GIS applications using Open Source solutions.

 

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