贝塞尔函数
傅里叶变换
卷积(计算机科学)
算法
计算机科学
窗口函数
核(代数)
反演(地质)
功能(生物学)
傅里叶分析
人工智能
数学
模式识别(心理学)
数学分析
计算机视觉
离散数学
地质学
古生物学
滤波器(信号处理)
构造盆地
人工神经网络
生物
进化生物学
作者
John I. Jackson,Craig H. Meyer,Dwight G. Nishimura,Albert Macovski
出处
期刊:IEEE Transactions on Medical Imaging
[Institute of Electrical and Electronics Engineers]
日期:1991-01-01
卷期号:10 (3): 473-478
被引量:1028
摘要
In the technique known as gridding, the data samples are weighted for sampling density and convolved with a finite kernel, then resampled on a grid preparatory to a fast Fourier transform. The authors compare the artifact introduced into the image for various convolving functions of different sizes, including the Kaiser-Bessel window and the zero-order prolate spheroidal wave function (PSWF). They also show a convolving function that improves upon the PSWF in some circumstances.
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