| 数字全息再现像中零级干扰噪声消除及图像增强研究 |
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| 引用本文： | 曾然,赵海发,刘树田. 数字全息再现像中零级干扰噪声消除及图像增强研究[J]. 光子学报, 2004, 33(10): 1229-1232 |
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| 作者姓名： | 曾然 赵海发 刘树田 |
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| 作者单位： | 哈尔滨工业大学应用物理系,哈尔滨,150001 |
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| 摘 要： | 利用基于图像处理的微分梯度方法预先对数字全息图进行空间域的图像增强操作,可以达到消除全息再现时的零级衍射干扰的目的.它无需其它辅助设备或多次全息记录,是一种方便简洁的处理方法.在理论分析和数字再现结果中都表明,该方法不仅能够有效地消除零级衍射像,同时对于真实像的再现质量有着显著提高.
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| 关 键 词： | 数字全息 零级像 图像处理 |
| 收稿时间： | 2003-09-24 |
| 修稿时间： | 2003-09-24 |
Zero-order Image Elimination in Digital Holography by Means of Image Processing |
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| Affiliation: | (Department of Physics, Harbin Institute of Technology, Harbin 150001) |
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| Abstract: | A new method to eliminate the zero-order disturbance in reconstruction of digital hologram is proposed in this paper. The method is based on digital image processing free of any extra optical element, and proved to be simple and advantageous to improvement of the desired image quality. The theoretical analysis is given and digital experimental results presented. |
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| Keywords: | Digital holography Zero-order image Image processing |
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