HTML5 WebGL technology and scanned old maps

Hynek Pridal <hynek.pridal@klokantech.com>Petr Pridal <petr.pridal@klokantech.com>

8th International Workshop Digital Approaches to Cartographic Heritage, ICA

Rome, 19-20 September 2013

HTML5 WebGL technology and scanned old maps

Image -> Map

Image -> Map

Georeferencer

www.georeferencer.com

Online service for turning scans into true maps.Collaboratively.

www.georeferencer.com

Calculations fromcontrol points

www.georeferencer.com

WebGL?

Hardware accelerated graphicaloperations on a web page.

Software, which runs on the graphic card(GPU) inside of a web browser.

<CANVAS> in HTML5,JavaScript + OpenGL ES 2.0 code

11+

Affine transformationTraditionaly only with a server with OGC WMS / OGC WMTS

Now possible with HTML5 Canvas, SVG or WebGL

Polynomial + TPSTraditionaly only with a server with OGC WMS / OGC WMTS

Now possible with HTML5 WebGL

http://www.georeferencer.com/

Map overlays(WMS / WMTS / Google Maps)

3D visualizations(KML / Google Earth)

Scan -> Geodata(Tiff -> GeoTiff)

Metadata enrichment(MARC 034 / Dublin Core DCMI)

Accuracy analysis(MapAnalyst cartometric accuracy)

Crowdsourcing or hired workers

Outputs:

www.georeferencer.com

Culture heritageinstitutions pilots:

and more...

... universities & research projects ...

Interested to participate?

Geographical searchfor old maps

The technology is available for integration with web presentations and online projects.

www.oldmapsonline.org

Search engine for maps from libraries around the world

Partners

Thank you

participation on research projectsopen-source development

culture heritage

email contact:

info@klokantech.com