Stochastic analysis of geometric image processing using B-splines

被引:0
|
作者
Rohde, G. K. [1 ]
Healy, D. M., Jr. [1 ]
Berenstein, C. A. [1 ]
Aldroubi, A. [1 ]
Rockmore, D. [1 ]
机构
[1] Univ Maryland, Dept Math, College Pk, MD 20742 USA
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中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
We look at the problem of extracting geometric functions such as spatial transformations and curves delineating edges to sub-pixel accuracy from noisy, sampled data. We analyze the stochastic properties of continuous B-spline interpolation to show that, in general noisy circumstances, sub-pixel accuracy is not obtainable when using low degree B-splines. Results using magnetic resonance image (MRI) data are shown.
引用
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页码:5875 / 5878
页数:4
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