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Transparent Object Reconstruction via Coded Transport of Intensity

Transparent Object Reconstruction via Coded Transport of Intensity. Supplemental Video Paper ID: 846. Transparent Objects. Water. Turbulence / Gas. Flame. Glass. Applications. Aeronautical Engineering. Live Cell Imaging. Graphic Rendering. Related Work. Intrusive Methods.

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Transparent Object Reconstruction via Coded Transport of Intensity

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

  2. Transparent Objects Water Turbulence / Gas Flame Glass

  3. Applications Aeronautical Engineering Live Cell Imaging Graphic Rendering

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

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

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

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

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

  9. Dynamic Volume Reconstruction Collimated Coded Illumination Moveable Sensor Plane … Illumination 2 … Sensor 3 Object Illumination 1 Sensor 1 Sensor 2 Illumination 3 … …

  10. Experimental Results

  11. Simulation Results: Thin refractive object Simulation Setting Reconstruction

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

  13. Simulation Results: Homogeneous Volume Target Object Reconstructed volume

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

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

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

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

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

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