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

作　　者：苏俊宏[1] 葛爱明[2] 

机构地区：[1]西安工业学院成人教育学院,陕西西安710032 [2]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《光学仪器》2001年第2期10-13,共4页Optical Instruments

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 。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.

关 键 词：激光散斑 离焦法 微分滤波 边缘增强 光学图像 干涉 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]