Video image mapping system

Details Video image mapping system Video image mapping system

Filed on

1991-03-29

Date issued

1992-12-22

Examiner

Couso, Jose

Patent Class

Image analysis

SubClass

Histogram processing

SubSubClass

For setting a threshold

Other Related Categories

382 45, 382 46, G06K 932

Type

Patent

Status

active

Patent number

051739488

Description

ABSTRACT:
A video mapping system includes a weighting coefficients generator and a two-dimensional resampling filter that efficiently utilize memory resources and operate fast enough to process a video image stream without introducing artifacts through temporal interpolation. This system can accommodate non-linear and many-to-one mappings, allowing a source two-dimensional video image to be folded over itself in complicated ways to produce an image in the target coordinate system. The only restrictions are that the mapping be piecewise continuous and single-valued. Anti-aliasing filtering is implicit in the approach.

REFERENCES:
patent: 4472732 (1984-09-01), Bennett et al.
patent: 4563703 (1986-01-01), Taylor et al.
patent: 4709393 (1987-11-01), Taylor et al.
patent: 4751660 (1988-06-01), Hedley
patent: 4757384 (1988-07-01), Nonweiler et al.
patent: 4835532 (1989-05-01), Fant
patent: 4875097 (1989-10-01), Jackson
patent: 4975976 (1990-12-01), Kimata et al.

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