A New Orientation-Adaptive Interpolation Method

A New Orientation-Adaptive Interpolation Method

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 o...

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Veröffentlicht in:IEEE transactions on image processing 2007-04, Vol.16 (4), p.889-900
Hauptverfasser: Qing Wang, Ward, R.K.
Format: Artikel
Sprache:eng
Schlagworte:
Advertising
Algorithms
Applied sciences
Curvature
Degradation
Digital photography
directional interpolation
Exact sciences and technology
Image analysis
Image Enhancement - methods
image interpolation
Image Interpretation, Computer-Assisted - methods
Image processing
Information, signal and communications theory
Interpolation
isophote
Isophotes
Kernel
Kernels
Mathematical analysis
Numerical Analysis, Computer-Assisted
Partial differential equations
Pixel
Pixels
Printing
Reproducibility of Results
Sensitivity and Specificity
Signal processing
Telecommunications and information theory
zigzagging
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Beschreibung
Zusammenfassung: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
ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2007.891794