1. Transparent Object Reconstruction via Coded Transport of Intensity Supplemental Video Paper ID: 846

4. Turbulence / Gas Flame Water Glass Transparent Objects

5. Aeronautical Engineering Applications Graphic Rendering Live Cell Imaging

6. Light Field Probes Intrusive Methods Wetzstein et al., ICCP 2011 Schlieren Imaging Yu et al., CVPR 2013 Atcheson et al., SIGGRAPH Asia 2008 Imperical College Lodon Hullin et al., SIGGRAPH 2008 Trifonov et al., EGSR 2006 Related Work Non-intrusive Methods

7. Collimated Coded Illumination Moveable Sensor Plane Object Our Method We propose to reconstruct transparent object using two different intensity projections based on transport of intensity equation.

8. Transport of Intensity In Volumetric Object Case: In Thin Object Case: Obtaining Outgoing Light Field via Transport of Intensity Equation Collimated Coded Illumination Moveable Sensor Plane Object

9. Estimate Ray-ray Correspondences Using Spatial Intensity Codes Light Path Approximation Collimated Coded Illumination Moveable Sensor Plane Object

10. Tomographic Volume Reconstruction Collimated Coded Illumination Moveable Sensor Plane Object Rotating Different perspectives 3D Volume

11. Collimated Coded IlluminationMoveable Sensor Plane Object Sensor 1 Sensor 2 Illumination 2 Illumination 1 Sensor 3 Illumination 3 Dynamic Volume Reconstruction … … … …

12. Experimental Results

13. Simulation Results: Thin refractive object Simulation Setting Reconstruction

14. Target Object Simulation Results: Homogeneous Volume Reconstructed 2D Projections of 3D Refractive Index Field

15. Simulation Results: Homogeneous Volume Reconstructed volume Target Object

16. Simulation Results: Inhomogeneous Volume Reconstructed Isosurface and Refractive Index Field Target Object

17. Our Prototype Projector Refractive sample Collimating lens Collimating lens Cameras Beam splitter & screens

18. Prototype Result: Thin refractive object Target Object Reconstructed Rendered

19. Prototype Result: Dynamic refractive index fields Target Object Reconstructed Image Pairs

20. Prototype Result: Refractive Volumetric Reconstruction Reconstructed volume Target Object Reconstructed Refractive Index Surface Reconstruction -90° -45° 0° 45° 90°