Rear projection imaging system with image warping distortion...

Details Rear projection imaging system with image warping distortion... Rear projection imaging system with image warping distortion...

Filed on

2007-08-28

Date issued

2007-08-28

Examiner

Ometz, David (Department: 2622)

Patent Class

Television

SubClass

Video display

SubSubClass

Projection device

Other Related Categories

C348S744000, C348S746000, C348S756000, C359S456000, C353S069000

Type

Reexamination Certificate

Status

active

Patent number

11256242

Description

ABSTRACT:
A rear projection imaging system with an image warping distortion correction system using a camera and processing unit to generate a warping map that corrects for image distortion. The warping map is generated in an iterative process by displaying a known pattern on a viewing screen and, through the use of a camera, having a microprocessor determine the location and shape of the pattern on the screen. The microprocessor then compares the displayed image to the original reference image, calculates the distortion effects present in the projection optics, and generates a warping map.

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