1 / 14

3-D

3-D. cs5984: Information Visualization Chris North. Last Week. Virtual Environments 3-D manipulation, navigation, immersion Scientific Visualization Data Flow? Peripheral Displays Primary and secondary tasks, attention. Today. DeFanti, “Scientific Visualization”, pg 39

stash
Download Presentation

3-D

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 3-D cs5984: Information Visualization Chris North

  2. Last Week • Virtual Environments • 3-D manipulation, navigation, immersion • Scientific Visualization • Data Flow? • Peripheral Displays • Primary and secondary tasks, attention

  3. Today • DeFanti, “Scientific Visualization”, pg 39 • Sayle, “Rasmol”, web • Yuying, Matt

  4. 3-D Data • Vector/Polygonal surface data • Polygons approximate surfaces of 3D objects • Paint textures on surfaces • E.g: Rasmol, Quake • Navigation: • Move camera • Move objects • 6 dof: • 3 rotation • 3 translation

  5. 3-D Data 2-D: • Voxel volume data • Fully sampled contents of 3D objects • Voxel = 3D pixel; point in a 3D image • E.g: Visible Human, MRI, CaT scan • Visible Human • slice and photograph • MRI & CaT: • Measures tissue density at each point in space • Navigation? 3-D:

  6. Slicing • Visible Human Explorer (north et al) • Video? • Demo?

  7. Slice and Dice

  8. Image Segmentation • Determine physical structures within volume • Manual • Image processing • Generate surfaces

  9. Image Segmentation • Voxel-Man • Hamburg University • http://www.uke.uni-hamburg.de/institute/imdm/idv/vm3dn/io_thorax.en.html

  10. Transparency • Reduce occlusion problem • http://www.uke.uni-hamburg.de/institute/imdm/idv/vm3dn/io_xray_combined.en.html

  11. 3-D data: Digital Video • 3D: Stack 2D video frames time y x

  12. Slicing Digital Video Full overview: time zoom • Red’s Nightmare video in VHE motion Scene change Pan left still credits

  13. Assignment • Read for Thurs: Workspaces • Gelernter, “LifeStreams”, web • fanye, luhui • Robertson, “Task Gallery”, web • priya, dilshad • Read for Tues: Construction • Hibino, “InfoStill”, web • gowri, joy • Haeberli, “Data Flow”, web • ajay, denzil

  14. Future • O+D vs. F+C • 2D vs. 3D • Project presentations start in 2 weeks! • Last 2 days of class, 2 hours/class • 10 min talk (5 slides), demo, paper draft • Final paper: may 7 • CAVE tour now (torg 3050)

More Related