Method, apparatus and a unit for image conversion

Details Method, apparatus and a unit for image conversion Method, apparatus and a unit for image conversion

2003-10-27

2009-11-24

Mehta, Bhavesh M (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C382S254000

Reexamination Certificate

active

07623738

ABSTRACT:
An image conversion unit for converting a first image with a first resolution into a second image with a second resolution, the second resolution being higher than the first resolution being higher than the first resolution is disclosed. The image conversion unit comprises a noise generator for generating noise and a combining unit arranged to add the noise to the second image. Preferably the noise that is added comprises spectral components which are in a part of a frequency spectrum which is above the Nyquist frequency of the first image. Optionally the image conversion unit comprises a noise measurement unit to control the noise generator. FIG. 5A+5B+5C

REFERENCES:
patent: 5309526 (1994-05-01), Pappas et al.
patent: 6341181 (2002-01-01), Greivenkamp et al.
patent: 6592523 (2003-07-01), Avinash et al.
patent: 7239424 (2007-07-01), Berkner et al.
patent: WO0161989 (2001-08-01), None

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