Magnetic Resonance Syst. Res. Lab., Stanford Univ., CA.
IEEE Trans Med Imaging. 1991;10(3):473-8. doi: 10.1109/42.97598.
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.
在称为网格化的技术中，对数据样本进行采样密度加权，并与有限核卷积，然后在快速傅里叶变换前在网格上重新采样。作者比较了各种不同大小的卷积函数引入图像中的伪影，包括凯泽-贝塞尔窗和零阶长球波函数（PSWF）。他们还展示了一种在某些情况下优于 PSWF 的卷积函数。
