Method for controlling interpolation direction and related...

Details Method for controlling interpolation direction and related... Method for controlling interpolation direction and related...

2008-07-08

2008-07-08

Ahmed, Samir A. (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C348S448000

Reexamination Certificate

active

07397973

ABSTRACT:
The present invention provides a method for controlling an interpolation direction of a pixel needing to be interpolated between a first row and a second row within an image. The image has a plurality of pixels arranged in a matrix format. The method includes calculating a plurality of first horizontal pixel value differences between pixels positioned in the first row and a plurality of second horizontal pixel value differences between pixels positioned in the second row. The method further includes comparing the plurality of first horizontal pixel value differences with a first threshold and the plurality of second horizontal pixel value differences with a second threshold to control whether the interpolation direction is orthogonal to the first row and the second row.

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T. Doyly, M. Looymans; Progressive Scan Conversion using Edge Information; Signal Processing of HDTV, II; p. 711-p. 721.

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