Integral Photography A Method for Implementing 3D Video Systems.

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Presentation transcript:

Integral Photography A Method for Implementing 3D Video Systems

Outline What is Integral Photography? Problems and Solutions An experimental System Remaining Drawbacks

What is Integral Photography? Proposed by Lippman in 1908 Similar to Holography Autostereoscopic

Elemental Images Miniature images of the view through each lens

Problems Depth Inversion Image Inversion Optical Crosstalk Depth Error

Depth Inversion Convex objects appear concave Can be solved via a second image capture or via orthoscopic viewing

Image Inversion The image capture on film appears inverted Can be solved by rotating the film 180* before viewing

Optical Crosstalk Caused when light rays from multiple sources strike same pixel of film Solved via GRIN (gradient-index) lense array

Depth Error Objects far from the lens array have their depths poorly estimated Solved via a secondary depth control lense

An Experimental Real-time System

Remaining Drawbacks Requires extremely high resolution –~Ne² times more than 2D imaging –Ne is the number of pixels per elemental image

Conclusion Theoretically a very good approach Current Implementations limited by resolution of image capture and display devices

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