An approximation for discrete B-splines in time domain

被引：16

作者：

Ichige, K ^{[1
]}

Kamada, M ^{[1
]}

机构：

[1] IBARAKI UNIV,DEPT COMP & INFORMAT SCI,HITACHI,IBARAKI 316,JAPAN

来源：

IEEE SIGNAL PROCESSING LETTERS | 1997年 / 4卷 / 03期

关键词：

D O I：

10.1109/97.558645

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A simple discrete version of B-splines defined as a multifold discrete convolution of sampled rectangles Is proposed in the analogy of B-splines being multifold convolution integrals of rectangular functions. Then it is proven that its staircase interpolation tends to the B-spline when the sampling interval goes to zero, This version can be regarded as an approximation for the discrete B-splines established in the literature, and it is faster in numerical evaluation.

引用

页码：82 / 84

页数：3

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