光学
哈达玛变换
散射
物理
鬼影成像
光散射
光场
图像质量
正交性
噪音(视频)
高斯分布
高斯光束
点扩散函数
图像分辨率
迭代重建
计算机科学
探测器
光强度
空间频率
光传递函数
像素
全息术
数学
人工智能
图像(数学)
梁(结构)
量子力学
几何学
作者
Zhujun Gao,Jianhua Yin,Yanfeng Bai,Xiquan Fu
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-09-20
卷期号:59 (27): 8472-8472
被引量:6
摘要
The scattering medium in the imaging path can affect the imaging quality of traditional ghost imaging. We propose to substitute a Gaussian light source with a Hadamard modulated light field to reduce correlated noise due to the occurrence of scattering medium and to improve the corresponding signal-to-noise ratio (SNR). In the simulation, scattering media with different intensities are applied on the test arm, and the result shows that Hadamard modulated light, with the particular orthogonality, is superior to Gaussian light. By substituting Gaussian light with Hadamard modulated light, a ghost image with higher SNR can be obtained under both weak and strong scattering.
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