| 数字全息再现像的细节显示和视觉畸变矫正 |
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| 引用本文： | 范琦,赵建林,李世扬,陆红强,徐莹.数字全息再现像的细节显示和视觉畸变矫正[J].中国激光,2005,32(10):401-1405. |
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| 作者姓名： | 范琦 赵建林 李世扬 陆红强 徐莹 |
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| 作者单位： | 西北工业大学理学院光信息科学与技术研究所,陕西,西安,710072 |
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| 基金项目： | 航空科学基金（02153075）和西北工业大学博士论文创新基金（CX200421）资助项目. |
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| 摘 要： | 在分析数字全息系统的最小分辨距离和再现像平面上的采样间隔的基础上，提出了一种在用菲涅耳变换法再现数字全息图时，能清楚显示再现像细节的简单方法，这种方法能有效地提高再现场的显示分辨率。通过给由CCD记录的数字全息图补零，可使再现像平面上采样间隔减小，使再现像具有更多的像素，得到保留了更多记录信息的高质量再现像。用同样的方法，也可以矫正由于CCD靶面尺寸在水平和竖直方向上的不一致造成再现像的视觉畸变。实验结果表明此方法有很好的效果。
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| 关 键 词： | 全息 分辨率 再现像 采样间隔 菲涅耳变换法再现 |
| 文章编号： | 0258-7025（2005）10-1401-05 |
| 收稿时间： | 2005-01-19 |
| 修稿时间： | 2005-04-20 |
Detail Displaying and Vision Aberration Rectifying of Reconstructed Image in Digital Holography |
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| FAN Qi,ZHAO Jian-lin,LI Shi-yang,LU Hong-qiang,XU Ying.Detail Displaying and Vision Aberration Rectifying of Reconstructed Image in Digital Holography[J].Chinese Journal of Lasers,2005,32(10):401-1405. |
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| Authors: | FAN Qi ZHAO Jian-lin LI Shi-yang LU Hong-qiang XU Ying |
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| Abstract: | Based on analyzing resolution of digital holographic system and sampling space in reconstructed image plane,a simple,convenient and effective method is presented,which can increase the display resolution of the reconstructed field in Fresnel-transform reconstruction of digital holograms.By padding zeros operation to a digital hologram recorded by charge-coupled device(CCD),sampling space in the reconstructed image plane is decreased and pixel numbers in the reconstructed image are increased,and then the reconstructed image with high quality is obtained.With similar method,the vision aberration of reconstructed images resulted from the difference of CCD size in horizontal and vertical direction is rectified.Experimental results show a good agreement with the theoretical analysis. |
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| Keywords: | holography resolution reconstructed images sampling spaces Fresnel-transform reconstruction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
