Skip to main content
Article thumbnail
Location of Repository

CUBIC SURFACE FITTING TO IMAGE WITH EDGES AS CONSTRAINTS

By Zhang Caiming, Zhang Xin, Li Xuemei and Cheng Fuhua

Abstract

Conventional polynomial interpolation methods produce interpolated images with blurred edges, while edge-directed interpolation methods make enlarged images with good quality edges but with detail distortion in the non-edge portion for some cases. A new method for constructing a fitting surface to image data is presented. Unlike existing methods which produce enlarged images using image data as interpolation data, the new method constructs the fitting surface using the image data as constraints to reverse the sampling process for improving the fitting precision. To remove the zigzagging artifact, for each pixel and its nearby region, the edge information is used to determine the quadratic polynomial which approximates the original scene with a quadratic polynomial precision. Comparison results of the new method with other methods are included. Index Terms — Surface fitting, quadratic polynomial, image resizing, reversin

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.5529
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www.cs.uky.edu/~cheng/P... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.