title: A new orientation-adaptive interpolation method.
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.
authors.affiliation: Microsoft Corporation, Redmond, WA 98052, USA. qingw@ece.ubc.ca
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
authors.forename: Rabab Kreidieh
authors.initials: RK
authors.lastname: Ward
mesh_terms: D000465:Algorithms; D016477:Artifacts; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D009716:Numerical Analysis, Computer-Assisted; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity