# Geography

> 1 post tagged Geography on Timo Arnall's site, 2010: Parallel tracking and mapping for small AR workspaces.

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- [Parallel tracking and mapping for small AR workspaces](https://www.elasticspace.com/2010/01/parallel-tracking-and-mapping-for-small-ar-workspaces/) (2010): A note on Georg Klein's PTAM research, augmented reality that picks up registration from an initial set of objects and goes in and out of register.