Mobile Navigation of Physical Heritage Spaces Ayodeji Olojede 1 - - PowerPoint PPT Presentation

Mobile Navigation of Physical Heritage Spaces

Ayodeji Olojede

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Introduction

• Rock Art documents ancient cultures around

the world.

• Many digital libraries collect images and

descriptions of this rock art.

• However, there is no link between archive

and art when a visitor visits an actual site.

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Example of Rock Art

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The Goal

• A visitor to the site takes a picture with a phone

camera.

• An application on the phone then tells her

exactly what she is looking at. ○ Maybe with a list of probable candidates, like a search engine.

• Create a link from the archive to the physical to

support education.

4

Methodology

• Use feature extraction algorithms to

convert images to key attributes:

○ SIFT, SURF, FAST

• Use information retrieval algorithms to

perform a fast search operation on a mobile device.

5

Current Status

• SIFT works well to find key attributes on a

phone.

• Search indexing algorithms are being
• ptimized.
• We can already find the correct image within

a specific site.

• ...but we can do better!

6

Future Work

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• Formal evaluation of application on mobile

phone.

• Testing and possible deployment in the

field, in collaboration with Department of Archaeology at UCT.

Thank You

(but don’t go yet - I am not done)

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