超微弱光子图像的相关检测及计算机模拟  

Correlation Detection of Ultraweak Photon Image and Its Computer Simulation

作　　者：马瑜[1] 俞信[1] 王苏生[1] 李勤[1] 

机构地区：[1]北京理工大学光电工程系,北京100081

出　　处：《光学学报》2001年第10期1194-1198,共5页Acta Optica Sinica

基　　金：国家科委 86 3高科技项目 (86 3 30 8 19 0 3);国家自然科学基金资助课题

摘　　要：在超微弱发光的研究中 (例如生物发光 ) ,由于发光强度极弱 ,由像增强器得到的光子图像由于样本 (光子 )数量太少和受系统暗噪声的影响使其信噪比极低。提出了一种基于统计学的光子图像相关积分方法和基于相关处理的光子图像处理方法 ,用累积光子来提高图像信噪比并得到相应灰度图像并对该方法进行了计算机模拟 ,同时展示了光子图像和传统灰度图像的信噪比关系 。In study of ultraweak luminescence (such as bioluminescence) the weakness of luminescence or the lack of samples (photons) and the influence of system dark noise cause low SNR (signal-to-noise ratio) in photon images acquired by image intensifier. A photon image correlation integral method based on statistics and a photon image processing method based on correlation processing were proposed. The method for accumulating photon image to get enhanced SNR grey scale image was presented. A computer simulation method was developed to illustrate the process. These methods also illustrate the SNR relation between photon image and traditional grey scale image and provide an effective way for detecting ultraweak bioluminescence.

关 键 词：光子图像 计算机模拟 生物 超微弱发光 信号检测 信噪比 传统灰度图像 

分 类 号：Q63[生物学—生物物理学] TN911.73[电子电信—通信与信息系统]