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Annotating Gigapixel Images

Annotating Gigapixel Images

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Annotating Gigapixel Images

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  1. Annotating Gigapixel Images Qing Luan, Steven Drucker, Johannes Kopf, Ying-Qing Xu, Michael Cohen Microsoft Research

  2. Annotating Gigapixel Images 4 Billion Pixels Seattle Alice

  3. Annotating Gigapixel Images • Annotations • Text Labels • Ambient Sounds • Narrative Audio Boston

  4. Annotations • When • do annotations appear? • What is their relative strength? • do annotations disappear? • Based on “distance” from the viewer.

  5. Gigapixel Image

  6. Approximate (Log) Depth

  7. Adding Annotations

  8. (xA,yA) fA

  9. (xV,yV) fV

  10. ~ fV ~ fV

  11. (xA,yA) (xV,yV) fA ~ fV Distance

  12. Distance Strength

  13. Normalization Hysteresis

  14. For each annotation, given • Text: (dis)appears based on thresholds • Ambient Audio: Volume related to strength • Narrative Audio: • - Starts/Ends based on thresholds • - Restarts where left off, unless time has passed

  15. Text Size Fixed Screen Size Fixed Texture Size Average feels more constant appears to shrink/grow grows/shrinks too fast

  16. Demo

  17. Related Work • ZUIs • Maps

  18. Annotating Gigapixel Images Thanks