激光技术Issue(4)：449-454,6.DOI:10.7510/jgjs.issn.1001-3806.2014.04.004
基于极坐标变换的相位扫描定中方法
Phase scanning centering based on polar coordinate transformation
摘要
Abstract
In order to realize fast and precise centering with non-diffracting spot as straight-line datum under complex background noise , the fluctuation of phase angle of non-diffraction spot with polar angle under polar coordinates was obtained with the phase scanning method .The deviation was the difference between the phase of non-diffraction spots on the ring direction and the phase of standard sinusoidal stripes .Finally, the centering of the non-diffraction spot can be realized after a number of iterations .Theoretical analysis and experimental verification show the method has the good ability of anti -noise, less time consumption and sub-pixel level accuracy .关键词
图像处理/信号处理/衍射/相位扫描/无衍射光斑Key words
image processing/signal processing/diffraction/phase scanning/non-diffraction spot分类
信息技术与安全科学引用本文复制引用
马国鹭,赵斌..基于极坐标变换的相位扫描定中方法[J].激光技术,2014,(4):449-454,6.基金项目
国家九七三重点基础研究发展计划资助项目 （）
