摘要
基于动态定标的线性剪切空间调制快拍成像测偏技术能够在动态环境(如温度变化)下对目标偏振信息进行更精确的实时测量,但实验噪声会引起反演图像的条状畸变。针对这一问题,系统分析了快拍成像偏振仪动态定标技术原理和目标相位的定量求解过程,提出了结合相位差分与双线性插值算法的噪声识别与相位修正方法。实验和计算结果表明,经过相位求解和修正计算,条带状失真得到去除,反演成像质量提升。为高相位变化和低信噪比环境下空间调制快拍成像测偏技术的实时应用提供支持,推动其在动态环境下的工程实际应用进程。
The linear shear spatial modulation snapshot imaging polarimetry technique based on dynamic calibration can provide more accurate real-time measurements of target's polarization information under dynamic environments(such as temperature changes).However,experimental noise causes strip distortions in the inverted image.To address this issue,the principle of dynamic calibration technology and the quantitative solution process of target's phase were systematically analyzed.A noise recognition and phase correction method was proposed,which combined phase difference and bi-linear interpolation.Experimental and calculation results show that after phase calculation and correction,the strip distortions are removed and the quality of inversion imaging is improved.This provides support for the real-time application of the spatial modulation snapshot imaging polarimetry technique in high phase change and low signal-to-noise ratio environments,and promotes its practical application in engineering under dynamic environments.
作者
贾辰凌
潘安
张晶
曹奇志
JIA Chenling;PAN An;ZHANG Jing;CAO Qizhi(School of Information,Xi'an University of Finance and Economics,Xi'an 710100;Frontier Institute of Science and Technology,Xi'an Jiaotong University,Xi'an 710054;School of Physics and Electronics,Nanning Normal University,Nanning 530023;State Key Laboratory of Transient Optics and Photonics,Chinese Academy of Sciences,Xi'an 710119)
出处
《长春理工大学学报（自然科学版）》
2024年第2期37-43,共7页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(11964021,11664004)
中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室开放课题资助项目(SKLST202220)。
关键词
相位修正
动态定标技术
空间调制
快拍成像偏振仪
phase correction
dynamic calibration
spatial modulation
snapshot imaging polarimeter
作者简介
贾辰凌(1988-),男,博士研究生,研究实习员,E-mail:xxjsjcl@qq.com;通讯作者:张晶(1979-),女,硕士,教授,E-mail:jingzhang2011@163.com。
