NDLI: Cubic surface fitting to image by combination

Content Provider	Springer Nature Link
Author	Li, XueMei Zhang, CaiMing Yue, YiZhen Wang, KunPeng
Copyright Year	2010
Abstract	We present a new method for constructing a fitting surface to image data. The new method is based on a supposition that the given image data are sampled from an original scene that can be represented by a surface defined by piecewise quadratic polynomials. The surface representing the original scene is known as the original surface in this paper. Unlike existing methods, which generally construct the fitting surface to the original surface using image data as interpolation data, the new method constructs the fitting surface using the image data as constraints to reverse the sampling process, which improves the approximation precision of the fitting surface. Associated with each data point and its near region, the new method constructs a quadratic polynomial patch locally using the sampling formula as constraint. The quadratic patch approximates the original surface with a quadratic polynomial precision. The fitting surface which approximates the original surface is formed by the combination of all the quadratic polynomial patches. The experiments demonstrate that compared with Bi-cubic and Separable PCC methods, the new method produced resized images with high precision and good quality.
Starting Page	1287
Ending Page	1295
Page Count	9
File Format	PDF
ISSN	1674733X
Journal	Science in China Series : Information Sciences
Volume Number	53
Issue Number	7
e-ISSN	18691919
Language	English
Publisher	SP Science China Press
Publisher Date	2010-07-10
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	surface fitting quadratic polynomial image resizing reversing Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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