数字全息术中的混叠误差。
Aliasing error in digital holography.
作者信息
Allebach J P, Gallagher N C, Liu B
出版信息
Appl Opt. 1976 Sep 1;15(9):2183-8. doi: 10.1364/AO.15.002183.
PMID:20165359
Abstract
The use of the discrete Fourier transform in digital holography introduces aliasing error in the reconstructed image. Spectrum shaping to reduce dynamic range may also result in a serious increase in aliasing error. The effect of aliasing in digital holography is analyzed. It is proposed that the bandwidth be constrained when shaping the image spectrum. Experimental results show the approach to be quite effective.
摘要
离散傅里叶变换在数字全息术中的应用会在重建图像中引入混叠误差。用于减小动态范围的频谱整形也可能导致混叠误差大幅增加。分析了数字全息术中混叠的影响。建议在对图像频谱进行整形时限制带宽。实验结果表明该方法相当有效。
Zotero 插件