Location-aware Mobile Devices & Landscape Mobile Devices & Landscape Reading JOYE R. – VERBEKEN J.…

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DLA 2011May 27th 2011Location-aware Mobile Devices & Landscape ReadingJOYE R. VERBEKEN J. HEYDE S. LIBBRECHT H. University College Ghent Dep. Bioscience and Landscape Architecture Brusselsesteenweg 161B-9090 MelleBELGIUM Ruben Joye ruben.joye@hogent.be Harlind Libbrecht harlind.libbrecht@hogent.be3INTRODUCTION 21.INTRODUCTIONINTRODUCTION Introduction Study area Research project outlines Geospatial web and location-based information DLA 2010 Landscape perception and valuation MATERIALS & METHODS Technical Content RESULTS & CONCLUSIONS Technical Content & Use3INTRODUCTION 213INTRODUCTION 21Situation mapPROJECT OUTLINES Ypres Salient Rich and diverse landscape history Evolved from a traditional landscape Historical castle & manor house parks (wide time span) Strategic border region between empires Landscape of war: most notably the First World War (1914-1918) Important international tourism destination (war commemoration)3INTRODUCTION 21Castles / manor housesCities and villagesYpres SalientMain roadsSituation mapPROJECT OUTLINES Historical research Evolution of the landscape Evolution of the castle & manor house domains and parks3INTRODUCTION 21German aerial photographs overlaid on top of current landscape PROJECT OUTLINES Historical research Evolution of the landscape Evolution of the castle & manor house domains and parks3INTRODUCTION 21The park of Zonnebeke3INTRODUCTION 21Non-specific information overload3INTRODUCTION 21Non-specific information overload3INTRODUCTION 21Non-specific information overload3INTRODUCTION 21Outdoor space in the Ypres Salient cluttered with signs and arrows3INTRODUCTION 21Geospatial web mobile web networked digital place portable GIS-3METHOD3INTRODUCTION 21DLA 2010Augmented Reality: combining synthetic supplements with the real world rather than totally replacing it (BIMBER & RASKAR, 2005)cf.: (Drascic and Milgram 1996)33INTRODUCTION 21Sketch by Humphry Repton (Maumen, 1912)33INTRODUCTION 21Sketch by Humphry Repton (Maumen, 1912)3METHOD*.SKP*.OBJ*.L3DLAYAR POI SERVERLAYAR CLIENTAPP3INTRODUCTION 21DLA 20103METHOD3INTRODUCTION 21DLA 2010 Layer definition http://dev.layar.com/ Title, description, keywords, logo Color definition Define filters Points-of-interest server Back-end interface between POIs and Layar Client App PorPOISE 1.x (http://code.google.com/p/porpoise/) Customizable (PHP) Points of interest (POI) 1D (point), 2D (image) and 3D (model) Proximity triggers (audio, video, webpage) SQL database or XML Need to look up the lat- lon-coordinates for each POI manually Lack of integration with common GIS-tools3LANDSCAPE PERCEPTION3INTRODUCTION 21Landscape perception and -valuation Landscape perception and -valuation Contextual & time bound Personal / subjective (JACOBS, 2006) Filtering based on prior knowledge: cognitive aspects (DIJKSTRA & KLIJN, 1992) Landscape experience and valuation is more than just an aesthetic consideration (DIJKSTRA & KLIJN, 1992) Quantative survey: purpose 20 students (advanced study in landscape development) Change of appraisal and overall assessment? Use and experience of the smartphone system Educational possibilities (mobile phone habits)1.MATERIALS & METHODSTECHNICAL MySQL & ESRI ArcGIS ODBC MySQL (version 5.1.8.) OLE DB Connection in ESRI ArcCatalog (Database connection) External database cannot be edited from within ESRI Arcmap Intermediate step through Microsoft Access Microsoft Access ArcScript ArcMap Hyperlink to Filtered Microsoft Access Form (CALLAHAN & CARSON, 2003) ArcGIS 8.2 & Microsoft Access 2000 | ArcGIS 9.3.1 & Microsoft Access 2010 Personal geodatabase Added a Point feature class named POI Added an additional field accessid on top of OBJECTID and SHAPE PorPOISe MySQL database schema Table POI 4 additional tables for advanced features like 2D/3D objects, actions, database.sql executed to the MySQL server using MySQL Workbench (version 5.2.31a) Imported to the personal geodatabase using Microsoft Access (external data)3MATERIALS & METHODS 21 Technical3MATERIALS & METHODS 21 TechnicalTECHNICAL3MATERIALS & METHODS 21 TechnicalTECHNICAL3MATERIALS & METHODS 21TECHNICALTechnical3MATERIALS & METHODS 21CONTENT MMP 19173MATERIALS & METHODS 21CONTENT MMP 19173MATERIALS & METHODS 21CONTENT MMP 19173MATERIALS & METHODS 21 MMP 1917CONTENT3MATERIALS & METHODS 21 MMP 1917CONTENT3MATERIALS & METHODS 21 MMP 1917CONTENT3MATERIALS & METHODS 21 MMP 1917CONTENT2.RESULTS & CONCLUSIONS3RESULTS & CONCLUSIONS21TECHNICAL ESRI ArcGIS Projection set to local geographic coordinate system (Belge Lambert 72) Georeferenced aerial photo POI point feature class from the personal geodatabase was added (WGS 84) Transformation from WGS 84 to Belge Lambert 72 Adding new POIs features graphically (sketch tool) Copy OBJECTID (Arcmap) to accesid (ArcScript) and id (PorPOISe) using the Field Calculator Adding the longitude and latitude values using the Calculate Geometry tool Using the hyperlink tool clicking any POI will open the corresponding Microsoft Access form Microsoft Access Information on each POI can be added of updated Webpage within the Microsoft Access form show the location of the selected POI Updating the online MySQL database using Access To MySQL (freeware) Automatic alternative: DBSync for Access and MySQL (paid)3RESULTS & CONCLUSIONS21 ESRI Arcmap3RESULTS & CONCLUSIONS21 Microsoft Access3RESULTS & CONCLUSIONS21 Layar RealitybrowserCONCLUSION Content 2D billboard images Hard to tell the direction of the photo Solution: experience domes / virtual caves3RESULTS & CONCLUSIONS21 TechnicalCONCLUSION Accuracy Difference in geographic coordinate system (Belge Lambert 72 vs. WGS 84) Minor deviation Inaccuracy is negligible (higher imprecision of GPS-signal) POI management Initial setting up of the system requires advanced technological knowledge Integrated in familiar workflows & ability to use existing GIS-data Much more functional in use then the PorPOISe server dashboard web interface Updating lat/lon fields and copying id-values should be automated3RESULTS & CONCLUSIONS21 TechnicalCONCLUSION Screen size 1/3 found the screen size to be a significant bottleneck Only two devices for twenty people Tablet pcs might be the solution (Apple iPad, Samsung Galaxy TAB,) offer a greater immersive experience due to the significant lager screen size (MAARTEN, 2010) Impact on landscape perception 83% valued the landscape higher in terms of cultural heritage after using the application Educational use 2/3 thinks AR is still too premature to have practical educational use Critical attitude towards educational (technological) innovation in general Multimedia or technology doesnt necessarily result in a better understanding of the learning content3RESULTS & CONCLUSIONS21 Quantative surveyCONCLUSION Mobile phones of students 40% have a mobile data plan Only a third has a smartphone All had Symbian (Nokia) as mobile OS: unsupported at the time Only 15% would pay over 200 for a new phone (critical price for an entry level smartphone) 2/3 of female students get a new phone every year All of the male students use their phones at least two years, and are willing to pay more Greater confidence in educational opportunities is shown by male respondents Future All of the respondents would use this location based service to explore and learn more about the Ypres Salient area once finished3RESULTS & CONCLUSIONS21 Quantative surveyThanks foryour attention!3 21 University College Ghent Dep. Bioscience and Landscape Architecture Brusselsesteenweg 161B-9090 MelleBELGIUM Ruben Joye ruben.joye@hogent.be Harlind Libbrecht harlind.libbrecht@hogent.beFoliennummer 1Foliennummer 2Foliennummer 3INTRODUCTIONFoliennummer 5PROJECT OUTLINESPROJECT OUTLINESPROJECT OUTLINESFoliennummer 9Foliennummer 10Foliennummer 11Foliennummer 12Foliennummer 13METHODFoliennummer 15Foliennummer 16METHODMETHODLANDSCAPE PERCEPTIONFoliennummer 25TECHNICALTECHNICALTECHNICALTECHNICALCONTENTCONTENTCONTENTCONTENTCONTENTCONTENTCONTENTFoliennummer 37TECHNICALFoliennummer 39Foliennummer 40Foliennummer 41CONCLUSIONCONCLUSIONCONCLUSIONCONCLUSIONThanks for your attention!