摘要
本文讨论了用数字图象处理技术测量散斑摄影杨氏条纹间距的三种 Z 变换法,运用正交实验手段,全面分析了三种方法的精度与噪声、条纹可见度及密度的关系。
Three kinds of Z transformation are used to measure the young's fringe spaces in speckle photography with the digital image processing technique.The relationships between measuring accuracy of this method and noises,visibility and fringe density are exposed thoroughly by orthogonal experimental method.Finally,a practical speckle photography fringe pattern is measured satisfactorily.
出处
《铁道科学与工程学报》
CAS
CSCD
1989年第3期107-111,共5页
Journal of Railway Science and Engineering
关键词
Z
变换
散斑摄影
数字图象处理
正交实验
Z transformation
speckle photography
digitol image processing
orthogonal experiment
