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IEEE Trans Image Process. 2007 Apr;16(4):889-900.

A new orientation-adaptive interpolation method.

Author information

1
Microsoft Corporation, Redmond, WA 98052, USA. qingw@ece.ubc.ca

Abstract

We propose an isophote-oriented, orientation-adaptive interpolation method. The proposed method employs an interpolation kernel that adapts to the local orientation of isophotes, and the pixel values are obtained through an oriented, bilinear interpolation. We show that, by doing so, the curvature of the interpolated isophotes is reduced, and, thus, zigzagging artifacts are largely suppressed. Analysis and experiments show that images interpolated using the proposed method are visually pleasing and almost artifact free.

PMID:
17405424
[Indexed for MEDLINE]

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