Digital Finds

joseph dot reeves at thehumanjourney dot net
@iknowjoseph

Mobile aerial photograph analysis

Apr 22, 2009 by Joseph Reeves

Juan Lucas Domínguez Rubio has a great entry on his blog that serves as a practical demonstration of using gvSIG Mobile for Openmoko as a tool for archaeological analysis and, perhaps more interestingly, explanation and dissemination:

http://gvsigmobileonopenmoko.wordpress.com/2009/04/21/old-things-brought-to-light-a-roman-theatre-some-orthophotos/

Juan Lucas has displayed a pair of shape files that trace the outline of a cathedral and Roman amphitheatre in modern day Cartagena, southern Spain; these lines are displayed over aerial mapping from the 1930's, 1950's and the modern day. The first two examples are served up via WMS, the third, I think, comes from Yahoo!'s aerial photography service. You see the Cathedral in good condition, with the amphitheatre covered by recent developments; later you'll see the Cathedral roof bombed and the building abandoned whilst the amphitheatre is later discovered and restored.

It starts to get very interesting when you remember that this is running on a GPS enabled mobile phone; people could walk around, choosing the layers they wanted to be displayed, watching history unfold around them. The potentials for dissemination or community involvement are enormous.



Comments:

Hi, Joseph. Thanks for that post. Sorry in my post I forgot to say that the present day image comes also from a WMS server of the Murcia regional gov. The base URL for WMS clients is:

http://cartomur.acotelsa.com/SgdWms/SgdWms.dll/WMS?

(layer: ortofoto-urbana)

This screenshot shows the map in all its quality. Of course you can see that resolution on your phone, but you would only see a small part of it:

https://correo.prodevelop.es/descarga/mobile/theatre-cathedral.html

Regards,
Juan Lucas

Posted by Juan Lucas Domínguez on April 22, 2009 at 04:26 PM BST #

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