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| 实现光学图像边缘增强的激光散斑离焦法 |
| Enhanced optical image edge with laser speckle out-of-focus method |
| 修订日期:2001-01-16 |
| DOI: |
| 中文关键词: 激光散斑,离焦法,微分滤波,边缘增强 |
| 英文关键词:laser speckle,out-of-focus method,differential coefficient filter,enhanced edge. |
| 基金项目: |
| 苏俊宏 葛爱明 |
西安工业学院成人教育学院!陕西西安710032(苏俊宏) ,南京理工大学电子工程与光电技术学院!江苏南京210094(葛爱明)
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| 中文摘要: |
| 激光散斑干涉法是近代光学的一项新技术。对于低对比度的图像 ,由于边缘部分模糊 ,强度变化不大而难以分辩。介绍了激光散斑干涉图像离焦法 ,并将其应用于光学图像的微分滤波 ,增强图像的边缘 ,从而得到边缘对比度较大的光学图像的原理与方法 |
| 英文摘要: |
| Laser speckle interferometry is a new technique in latter-day optics. Image for low contrast is difficult to be distinguished, as image edge is dimness. The principle and method of laser speckle interference image out-of-focus are discussed. Image edge is enhanced by optical image differential coefficient filter and the optical image with enhancde edge and contrast are got. |
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