Spatial resolution of video images

G. Haan, de (Inventor)

Research output: PatentPatent publication


The invention relates to a method and a device to increase the resolution of an image by interpolating along edges of the image. Edges are detected and their direction is calculated ( 10 ). The interpolation ( 12 ) of new pixels is carried out along the direction of the edges. According to the invention, a pre-filter ( 8 ) is used with a high-pass filtering in the direction in which new pixels are interpolated, and a low-pass filtering in another direction.
Original languageEnglish
Patent numberUS7206027
Publication statusPublished - 17 Apr 2007


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