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3D Volumetric Display Using Passive Optical Scatterers

3D Volumetric Display Using Passive Optical Scatterers. Shree K. Nayar and Vijay Anand. Computer Science Columbia University. SIGGRAPH Conference July 2006, Boston. Volumetric Displays. Varifocal Mirrors Spinning Screens Flourescent Gases Active Scatterers Passive Scatterers….

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3D Volumetric Display Using Passive Optical Scatterers

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  1. 3D Volumetric Display UsingPassive Optical Scatterers Shree K. Nayar and Vijay Anand Computer Science Columbia University SIGGRAPH Conference July 2006, Boston

  2. Volumetric Displays Varifocal Mirrors Spinning Screens Flourescent Gases Active Scatterers Passive Scatterers…

  3. Multi-Plane Projection: DepthCube Detection/Illumination of Dust Sullivan 2003 Voxels with Invisible Waveguides Perlin 2004 MacFarlane 1998 Related Work: Static Volumetric Displays

  4. Two Dimensional Display Orthographic Projector

  5. Semi-Regular Indexable Cloud (9 x 9 x 9) Visibility Function Number of Visible Points Viewing Angle (Degrees) Three Dimensional Display: Semi-Regular Cloud Orthographic Projector

  6. (9 x 9 x 9) Visibility Function Number of Visible Points Viewing Angle (Degrees) Three Dimensional Display: Z-Dithered Cloud Z-Dithered Indexable Cloud Orthographic Projector

  7. (9 x 9 x 9) Visibility Function Number of Visible Points Viewing Angle (Degrees) Three Dimensional Display: XY-Dithered Cloud XY-Dithered Indexable Cloud Orthographic Projector

  8. Visibility Function Number of Visible Points Viewing Angle (Degrees) Three Dimensional Display: XYZ-Dithered Cloud XYZ-Dithered Indexable Cloud (9 x 9 x 9) Orthographic Projector

  9. Visibility as a Function of Depth Different Points Within Same XY Grid 175 Viewing Angle (degrees) 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Depth (Z – Color Coded) of XY Grid

  10. Points Clouds using Laser Induced Damage (LID) 70 mm 200 mm 200 mm Points: 48 x 48 x 25

  11. Point with 4 Cracks Point with 6 Cracks Point with 10 Cracks Point Brightness 1600 Point with 1 Crack 1400 1200 1000 Point Brightness 800 600 400 200 0 0 10 20 30 40 50 60 70 80 Viewing Angle (degrees)

  12. Color Response of Optical Diffuser Point Color Color Response of LID Layer

  13. Display Implementation Glass Cube Fresnel Lens Planar Mirror Projector

  14. Display of True 3D Objects Point Cloud: 25x25x16 = 10,000 XYZ-Dithered Points

  15. 3D Animation: Rolling Ball

  16. 3D Animation: Rolling Ball

  17. Display of Extruded Objects with Top Planes Cloud: 190,500 Points

  18. Extruded Objects With Lids

  19. Extruded Objects With Lids

  20. Display of Purely Extruded Objects Cloud: 180,500 Points

  21. Purely Extruded Objects

  22. Cloud: 83,866 Points “Pacman” in 3D

  23. “Pacman” in 3D

  24. 3D Avatar Cloud: 127,223 Points Relief Projection: Walt Disney Co. 1980, Negroponte 1981

  25. 3D Avatar

  26. 3D Avatar

  27. Applications: Games Avatars 3D and Extruded Objects Summary • Volumetric Displays using Passive Light Scatterers • Enhanced Point Visibility by Randomization • Low Cost Implementation using Laser Induced Damage

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