System for improved ratiometric expansion and method thereof

Details System for improved ratiometric expansion and method thereof System for improved ratiometric expansion and method thereof

2007-04-03

2007-04-03

Natnael, Paulos M. (Department: 2622)

Television

Image signal processing circuitry specific to television

Special effects

Reexamination Certificate

active

10008630

ABSTRACT:
A system and method are described for providing an improved ratiometric expansion of video images. Source video images are set to a lower resolution than the full resolution of a pixelated display device. The source video images are up-scaled to match the display resolution of the display device. Pixels in the source video image are replicated to form a partially up-scaled video image that has frequency content well below the Nyquist rate of the image. The replicated image is then re-sampled through the use of a two-tap filter to generate a video image with the same resolution as the display device.

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