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

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Presentation transcript:

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

Turbulence / Gas Flame Water Glass Transparent Objects

Aeronautical Engineering Applications Graphic Rendering Live Cell Imaging

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

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.

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

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

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

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

Experimental Results

Simulation Results: Thin refractive object Simulation Setting Reconstruction

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

Simulation Results: Homogeneous Volume Reconstructed volume Target Object

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

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

Prototype Result: Thin refractive object Target Object Reconstructed Rendered

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

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