| Publisher | ETH Zurich | ||
|---|---|---|---|
| Format | 397.0KB PDF | Date added | 16 Feb 2005 |
| Topics | File and Network Servers, Mobile - Wireless Communications, Cellular Equipment | ||
| Downloads | 183 | ||
This paper explores the use of camera phones with pen input as a platform for generating digital annotations to real world objects. This paper analyzes the client-side requirements for a general annotation system that is applicable in mobile as well as stationary settings. This paper outlines ways to create and interact with digital annotations using the camera and pen-based input. Two prototypically implemented annotation techniques are presented. The first technique uses visual markers for digital annotations of individual items in printed photos. The second technique addresses the annotation of street signs and indication panels. It is based on image matching supported by interactively established 4-point correspondences.
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