matlab+EMCCD鬼成像仿真计算
关键词 鬼成像 EMCCD 可视度 噪声 有效像素
毕业设计说明书（论文）外文摘要
Title Simulation calculation of ghost image base on matlab
Abstract
Ghost image is a widely studied imaging method in recent years, its imaging properties are paid attention gradually. In this paper, we take matlab for a simulation software and take EMCCD as the imaging device, use the image visibility as image quality evaluation standards, focus on the effect of device parameters on image quality in the weak light environment by means of simulation. This paper first introduces the concept of effective pixels, and establishes ghost imaging system model with device noise. We use the simulation to introduce that how the EMCCD working temperature, effective pixels and background illumination effect on ghost imaging quality and analyze the reasons.
This paper proves that in the weak light ghost imaging system based on EMCCD, to improve imaging quality does not depend only on reducing EMCCD working temperature, but also on controlling the ratio of noise and background intensity. It can also improve the imaging quality by reducing the use of the effective pixel . At the same time, the establishment of the noisy ghost imaging model can also be applied to other low light level detection equipment, it is a general noisy ghost imaging model.
Keywords Ghost image EMCCD visibility noise effective pixel
目 次
1 绪论 1
1.1 引言 1
1.2 本课题的研究意义 1
1.3 本课题的研究背景及现状 1
1.4 本文结构安排 6
2 鬼成像系统噪声特性研究 7
2.1 鬼成像原理 7
2.2 鬼成像系统噪声模型 9
2.3 电子倍增CCD的噪声特性 12
3 基于EMCCD的鬼成像性质 13
3.1 鬼成像系统工作模式分析 13
3.2 EMCCD工作温度，背景照度对成像质量的影响 14
3.3 有效像素数量对成像质量的影响 17
结 论 20
致 谢 21
参 考 文 献 22
绪论
1.1 引言
鬼成像自二十世纪九十年代以来，在国际上一直稳步发展。鬼成像以其非局域性引发了科学界的极大兴趣。它是新兴的成像光学与量子信息的交叉前沿热点，在各个科学领域有着广阔的应用背景。鬼成像的理论一直在被丰富完善，从纠缠光量子成像到经典非相干光鬼成像，以及对图像可见度与分辨率的研究，现已建立了一套非局域图像探测理论。尤其是热光在鬼成像技术中的应用，使得该技术在实际应用环境得到极大扩展。
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