| 三维物体菲涅耳计算全息图的研究 |
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| 引用本文： | 侯瑞宁, 王丁. 三维物体菲涅耳计算全息图的研究[J]. 红外技术, 2008, 30(7): 403-405. DOI: 10.3969/j.issn.1001-8891.2008.07.009 |
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| 作者姓名： | 侯瑞宁 王丁 |
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| 作者单位： | 陕西科技大学理学院,陕西,西安,710021;重庆大学数理学院,重庆,400044 |
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| 摘 要： | 介绍一种用计算全息显示三维物体的方法.记录三维物体在非相干白光照明条件下两个正交方向上不同视角的一系列连续二维像,根据计算机断层成像原理,由这些二维像计算出物体的三维傅立叶频谱,从中提取出一特征傅立叶频谱,用卷积算法计算出在一定传播距离处的菲涅耳衍射分布,用计算全息编码方法制出一张菲涅耳计算全息图,并进行模拟再现,给出了不同再现距离处的再现像.
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| 关 键 词： | 菲涅耳衍射 计算全息图 计算机断层像 三维显示 |
The Study of Fresnel Computer-generated Hologram of 3-D Object |
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| HOU Rui-ning, WANG Ding. The Study of Fresnel Computer-generated Hologram of 3-D Object[J]. Infrared Technology , 2008, 30(7): 403-405. DOI: 10.3969/j.issn.1001-8891.2008.07.009 |
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| Authors: | HOU Rui-ning WANG Ding |
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| Abstract: | A method of displaying 3-D object by computer-generated hologram is proposed.Several continuous projection images of three-dimensional object of different perspectives in two orthogonal directions are recorded,the 3-D object are illuminated by incoherent white light.In accordance with the principle of computer topography,the three-dimensional Fourier spectrum of the object is calculated by use of these projection images,a character Fourier spectrum is extracted from the 3-D Fourier spectrum.The Fresnel diff... |
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| Keywords: | Fresnel diffraction computer-generated hologram computer topography 3-D display |
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