Real-time pseudocolor density encoding of an image

Details Real-time pseudocolor density encoding of an image Real-time pseudocolor density encoding of an image

1989-04-26

1991-05-28

Britton, Howard W.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 89, H04N 1300

Patent

active

050198980

ABSTRACT:
A method and apparatus are disclosed for real-time optical broadband pseudocolor encoding of an image. A light polarization spatial modulator is utilized to density encode an incident beam of plane-polarized light; the beam is dispersed into its primary colors; the polarizations of the dispersed beams are analyzed to produce positive, negative, and bidirectionally modualated images which are each separately encoded with a primary color; and the primary-color encoded beams are combined to produce a pseudocolored image. In a preferred embodiment the pseudocolor encoding apparatus comprises a compact white-light projection system and a liquid-crystal television spatial light polarization modulator. The invention makes possible the large-screen display of broadband pseudocolor images from real-world input scenes from a television camera.

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