| 李滢滢,蔡怀宇,黄战华,王东.离轴全息数字再现中零级衍射斑的消除[J].南华大学学报(自然科学版),2007,21(2):98~101.[.The Elimination of the Zero-order Diffraction Spot in the Reconstruction of the Off-axis Digital Hologram[J].Journal of University of South China(Science and Technology),2007,21(2):98~101.] |
| 离轴全息数字再现中零级衍射斑的消除 |
| The Elimination of the Zero-order Diffraction Spot in the Reconstruction of the Off-axis Digital Hologram |
| 投稿时间：2007-04-23 |
| DOI： |
| 中文关键词: 数字全息,零级像,图像处理 |
| 英文关键词:digital holography,zero-order image,image processing |
| 基金项目: |
| 李滢滢 蔡怀宇 黄战华 王东 |
| 天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室 天津300072 |
| 摘要点击次数: 935 |
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| 中文摘要: |
| 为了保证再现像清晰的细节再现,同时降低全息记录对CCD的要求,本文提出一种基于图像相减的消除离轴全息零级衍射斑的方法,同时用计算机模拟实验.结果表明,该方法简单快捷,即使在零级像和共轭像严重重叠的情况下,也能较好地消除零级像的影响.因此可用于全息的实时检测,且不会造成信息丢失. |
| 英文摘要: |
| To enhance the quality of reconstructed images and reduce the requirement of CCD at the same time,we propose a digital processing method for eliminating the influences of the zero-order diffraction spot on the reconstructed image of off-axis digital hologram using image subtraction.Reconstructions of hologram without zero-order diffraction spot are implemented successfully.It is proved to be fast and simple,and can eliminate the zero-order diffraction effectively,even if zero-order image and conjugate image is overlapping.It can be used in the real time inspection. |
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