Unit for and method of image conversion
AssigneeKoninklijke Philips Electronice N. V.
InventorGerard De Haan
Life of this patent
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Abstract
An image conversion unit (200) for converting a first input image with a first resolution into an output image with a second resolution, comprises a coefficient-calculating means (106) for calculating a first filter coefficient on basis of pixel values of the first input image and of pixel values of a second input image. The coefficient-calculating means (106) is arranged to control an adaptive filtering means (104) for calculating a pixel value of the output image on basis of an input pixel value of the first image and the first filter coefficient
Claims8
An image conversion unit (200) for converting a first image sequence, comprising a first image with a first resolution and a second image with the first resolution into a second image sequence comprising a third image with a second resolution, the image conversion unit (200) comprising:
- a coefficient-calculating means (106) for calculating a first filter coefficient on basis of pixel values of the first image;
- an adaptive filtering means (104) for calculating a third pixel value of the third image on basis of a first one of the pixel values of the first image and the first filter coefficient, characterized in that the coefficient-calculating means (106) is arranged to calculate the first filter coefficient on basis of further pixel values of the second image.
A method of converting a first image sequence, comprising a first image with a first resolution and a second image with the first resolution into a second image sequence comprising a third image with a second resolution, the method comprising:
- calculating a first filter coefficient on basis of pixel values of the first image;
- and
- calculating a third pixel value of the third image on basis of a first one of the pixel values of the first image and the first filter coefficient, characterized in that the first filter coefficient is calculated on basis of further pixel values of the second image.
An image processing apparatus (400) as claimed in claim 7, characterized in further comprising a display device (406) for displaying the second image sequence.
An image processing apparatus (400) as claimed in claim 8, characterized in that it is a TV.
Dependencies are inferred from the claim text.