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Image Interpolation by combination of two-dimension surface patches
Yue Yizhen * #,Zhang Caiming
Department of Computer Science and Technology of Shandong University
*Correspondence author
#Submitted by
Subject:
Funding: 教育部博士点基金（No.20070422098）
Opened online:22 June 2009
Accepted by: none
Citation: Yue Yizhen ,Zhang Caiming .Image Interpolation by combination of two-dimension surface patches[OL]. [22 June 2009] http://en.paper.edu.cn/en_releasepaper/content/33333
 
 
This paper develops a new method for image interpolation by constructing fitting surfaces to discrete image data. Usually, the image data is obtained by area sampling which can reduce the accuracy of the interpolation. So the point sampling values must be computed first, then a polynomial surface patch is obtained by the Lagrange method to approximate the local original continuous image surface. The whole image surface is constructed by combining all the local region surfaces with weighted functions. The experiments for testing the efficiency of the new method show that the interpolated images produced by the new method have higher precision and better quality than normal method, such as bi-cubic, and have no loss of image brightness.
Keywords:image interpolation;fitting surface;patch;point sampling;image brightness
 
 
 

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