【作者】 陆志文； 于瀛洁； 焦云芳；

【Author】 LU Zhi-wen, YU Ying-jie, JIAO Yun-fang(Department of precision mechanical engineering, Shanghai University, Shanghai 200072, China)

【机构】 上海大学精密机械工程系；

【摘要】 数字全息技术是传统全息技术的数字化处理。数字全息技术可以应用到物体影像计算机再现、光电再现和物体状态信息的检测,而这些工作的基础是计算机数字再现技术。对基于数字全息技术的物信息计算机数字再现进行了研究。介绍了单幅全息图数字再现技术,分析了再现算法的特点,提出了准确确定记录距离的算法。对硬币轮廓进行了图像再现,实现了变形测量,给出了实验结果。更多还原

【Abstract】 Digital holography was the numerical version of the conventional holographic technique. Digital holography could be widely applied in computer reconstruction for the object image, opt-electronic reconstruction and the detection for the object information in some state, in which the computer reconstruction was the basis of the latter two techniques. The numerical reconstruction for the object information based on digital holography was researched, in which the numerical reconstruction technique for the single hologram was mainly described. The characteristics of the reconstruction algorithms were analyzed, and the algorithm used to determine the exact recording distance was presented. In addition, the image reconstruction of the coin (RMB 1 JIAO) was realized and the corresponding deformation was tested. Finally, the experiment results are given.更多还原