对称照明在傅里叶叠层成像中的应用

发布时间：2018-06-27 16:30

本文选题：对称照明 + 傅里叶叠层成像　；参考：《物理学报》2017年22期

【摘要】：傅里叶叠层成像技术是一种全新的能够恢复出大视场下高分辨率图像的技术,而较长的采样时间限制了傅里叶叠层成像的实际应用.本文阐述了一种利用对称照明提高傅里叶叠层成像速度的方法,研究了傅里叶叠层成像在空域和频域上的对称性,指出在不考虑相位的情况下,利用对称照明可提高照明强度,减少傅里叶叠层成像所需要的图像数,同时可以提高傅里叶叠层成像图像重建的速度.实验表明使用对称照明可以在不改变算法复杂性的前提下,得到与传统傅里叶叠层成像同样的高分辨率,且所需的图像数减少约50%,采样时间减少约70%,图像重建时间减少约50%.基于对称照明的方法将促进傅里叶叠层成像技术在实时成像中的应用.
[Abstract]:Fourier stacked imaging is a new technique which can restore high resolution images in large field of view, and the long sampling time limits the practical application of Fourier stacked imaging. In this paper, a method of increasing the imaging speed of Fourier lamination by using symmetrical illumination is described. The symmetry of Fourier lamination imaging in spatial and frequency domain is studied. It is pointed out that the intensity of illumination can be improved by using symmetrical illumination without considering the phase. It can reduce the number of images needed for Fourier stacking imaging and improve the speed of image reconstruction. The experiments show that the symmetrical illumination can obtain the same high resolution as the traditional Fourier stacked imaging without changing the complexity of the algorithm, and the number of images needed is reduced by about 50 percent, the sampling time is reduced by about 70, and the reconstruction time of the image is reduced by about 50 percent. The method based on symmetrical illumination will promote the application of Fourier laminated imaging technology in real time imaging.
【作者单位】：南开大学现代光学研究所光学信息技术科学教育部重点实验室;中国洛阳电子装备试验中心光电测试与评估技术重点实验室;
【基金】：国家自然科学基金(批准号:11374167) 国家重点研发计划“数字诊疗装备研发”重点专项(批准号:2016YFC0101002)资助的课题~~
【分类号】：TP391.41

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