Method and apparatus of adaptive interpolation based on edge...

Details Method and apparatus of adaptive interpolation based on edge... Method and apparatus of adaptive interpolation based on edge...

2004-12-22

2008-12-02

Ishrat, Sherali (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

Reexamination Certificate

active

07460734

ABSTRACT:
An interpolation method based on edge detection includes: generating a measurement value of an edge direction according to a first pixel set and a second pixel set, wherein the first pixel set comprises at least a first pixel, the second pixel set comprises at least a second pixel, the first pixel and the second pixel are on opposite sides of the target location and define the edge direction, and the measurement value represents a measure of variance between the first pixel set and the second pixel set; according to the above step, generating a plurality of measurement values corresponding to a plurality of edge directions respectively; identifying a minimum measurement value from the plurality of measurement values; and calculating a value of the target pixel according to pixels of the first and second pixel sets corresponding to the minimum measurement value.

REFERENCES:
patent: 6133957 (2000-10-01), Campbell
patent: 6421090 (2002-07-01), Jiang et al.
patent: 6810156 (2004-10-01), Itoh
patent: 1281313 (2001-01-01), None

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