1. Time-varying volume visualization and compression
Presented by Zhi Yuan
10/05/2012

2. Volume Rendering

3. Changes through time? Volume Animation Fly-through navigation
Fly-around navigation
Time-varying animation

4. Rendering Pipeline

5. Rendering Pipeline Problems caused by large scale dataset: Storing
Visualization
Transmission

6. Features we can utilize
Redundancy (or Coherence)
Statistical redundancy
Spatial redundancy
Temporal redundancy

7. Coherence Metrics
Spatial Coherence Temporal Coherence

8. Rendering Acceleration
Re-projection techniques: space-leaping
Incremental ray-casting: ray coherence

9. Compression Methods
Video-based Compression

10. Compression Methods bricks
TSP (Time-Space Partition): spatial subdivision
bricks

11. Compression Methods 4 time steps
TSP (Time-Space Partition): temporal subdivision
[0,3]
[0,1]
[2,3] T=
4 time steps

12. References:

13. End