摘要
激光高相干性导致的散班噪声给激光的应用带来很多不利因素。简要介绍激光光源的特点和使用激光照明的不利因素以及激光散班噪声的评价标准,并对国内外抑制散斑噪声的光学方法和图像处理算法进行综述,介绍多种不同场合下的散班噪声抑制的有效方法。
Laser is widely used in the optical field, but the noise caused by high coherence of laser can also bring disadvantages to the application of laser. The characteristics of laser light source, the disadvantageous factors of laser illumination and the evaluation standard of laser speckle were introducedbrieflyin this paper. Then the optical method and image processing algorithm for suppressing speckle noise at home and abroad were reviewed.Finally, the effective methods of laser speckle suppression in different situations were introduced.
作者
邓慧
赖莉萍
张蓉竹
DENG Hui;NAI Liping;ZHANG Rongzhu(School of Electronic Engineering,Chengdu Technological University,Chengdu 611730,China;School of Electronic Information,Sichuan University,Chengdu 610065,China)
出处
《成都工业学院学报》
2018年第3期28-32,共5页
Journal of Chengdu Technological University
基金
四川省教育厅项目(18ZB0044)
关键词
激光相干性
激光散斑
散斑对比度
散斑抑制
laser coherence
laser speckle
speckled contrast
speckle suppression
