【作者】 史宁煜； 姚焜；

【Author】 SHI Ningyu, YAO Kun Department of Modern Physics, Department of Astronomy and Applied Physics of USTC (Hefei 230026)

【机构】 中国科学技术大学近代物理系天文与应用物理系；

【摘要】 本文回顾了傅里叶变换进行干涉图分析的方法。由于该方法具有处理单帧瞬变图像的能力,配合相位解包可从有载波的单帧干涉图像中相当精确的提取出原始波面的相位信息,因此对实时监测某些过程很有意义。作者使用该方法处理了一幅由迈克尔逊干涉仪生成的酒精灯火焰的干涉图样。再对求得的包裹相位进行相位解包以获得原始波面的相位信息时,作者采用了一种经过改进的相位解包算法,尽可能地防止二维相位解包时产生的不连续跳变现象,收到了很好的效果。更多还原

【Abstract】 In this paper, the Fourier transform based interferogram analysis technique isreviewed. As the method can quite precisely handle the quickly-varied single image with thehelp of phase unwrapping, it works on some real-time monitoring procedure. The authorapplied the method to the phase-retrieving of an alcohol burner’s flame interferogramcreated by a Michelson interferometer. A modified two-dimensional phase unwrappingmethod is used to get the original phase of the wavefront in order to avoid the phasediscontinuity, which yields a satisfying result.更多还原