Basic Principles of Light Polarization

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Presentation transcript:

Basic Principles of Light Polarization Thanks to Yoav Schechner, Nayar, Larry Wolff

Polarization Photography Reduce Sun Glare Reduce Reflections Darkens Sky Increase Color Saturation Reduce Haze

Polarization Photography Without Polarizer With Polarizer Provides better Color Saturation Darkens the sky

Polarization Photography Without Polarizer With Polarizer

Polarization Photography : Scattering Haze De-hazed

Polarization Photography : Wide Angle Lenses Vignetting of the Sky

Polarization Photography : Reflections Reduce Reflections

Polarization Photography : Reflections Reduce Reflections

Polarization Photography : Reflections Many titled planes

Polarization Photography : Underwater Underwater pipelines and communication Offshore structures Offshore drilling rigs Vessel inspection Underwater ROV/AOV Marine biology Recreational photography Marine archaeology Underwater mapping

Light as Plane Waves Polarized light Wave: Has only one preferred orientation. Un-polarized light Wave: Has no preferred orientation. or has all orientations. Partially polarized light wave: Has preferred orientation but has energy in other orientations as well.

Linear Polarization

Circular Polarization

Elliptical Polarization

Crossed Polarizers

Polarized Sunglasses Reduce glare off the roads while driving