摘要
通过对散斑特性的研究与分析 ,提出了一种快速、准确的散斑相关搜寻法。同时还提出一种“逐步更新”的测量方法 ,它克服了由于大的位移而导致相关系数偏低的缺点。实验证明 ,这种测量方法是一种快速。
A rapid and accurate method of speckle correlation displacement measurement is presented based on study and analysis on speckle characteristics.A “progressive updating”method of large scale displacement measurement is proposed to avoid the defect of low correlation coefficient caused by large scale displacement.The experimental results prove the method is rapid and accurate for large scale dynamic displacement measurement.
出处
《半导体光电》
CAS
CSCD
北大核心
2001年第2期124-127,共4页
Semiconductor Optoelectronics
基金
国家自然科学资金资助项目!(5 990 5 0 2 0 )
西安交通大学在职博士基金资助项目
关键词
散斑相关
激光检测
位移测量
speckle correlation
single peaked property
pixel by pixel track
progressive updating
