摘要
本文讨论了散斑摄影条纹图的噪声来源及模型,设计合适的数字滤波器.采取正交实验手段,全面分析了噪声、条纹对比度和密度对条纹方向及间距测量精度的影响.
The noise sources and model in speckle photography fringe pattern is discussed and a noise filter for this model is designed. By means of orthogonal experiment, the effects of noise, visibility and fringe density on the measuring accuracy of fringe direction and space are analysed in detail.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1989年第1期61-67,共7页
Acta Optica Sinica
关键词
数字滤波
散斑条纹图
衍射晕
speckle photography fringe pattern
digital filtering
diffraction halo.
