Visual Code Recognition for CameraEquipped Mobile Phones

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P E R V A S I V E 2 0 0 4 Second International
Conference on Pervasive Computing April 18-23,
Linz / Vienna, Austria
H14 Hot Spot Paper
Using Camera-Equipped Mobile Phones for
Interacting with Real-World Objects Michael
Rohs, Beat Gfeller Institute for Pervasive
Computing, Department of Computer Science, Swiss
Federal Institute of Technology (ETH) Zurich
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H14
Visual Code Recognition for Camera-Equipped
Mobile Phones
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H14
Visual Code Recognition for Camera-Equipped
Mobile Phones
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H14
Visual Code Recognition for Camera-Equipped
Mobile Phones

• Visual Code
• For low-resolution CCD cameras
• Built-in coordinate system
• Detection of rotation and tilting of the code in
  the image

• Detection of multiple codes in a single image
• Suited for display on electronic screens, video
  projection, as well as printing

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H14
Visual Code Recognition for Camera-Equipped
Mobile Phones

• Applications
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ID 28AF36B2
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H14
Visual Code Recognition for Camera-Equipped
Mobile Phones