Abstract We clarify that ghost imaging with low signal-to-noise ratio (SNR) originates from distorted point spread function for intensity fluctuation correlation reconstruction algorithm. An image reconstruction method has been proposed to improve the quality of ghost imaging based on the distorted point spread function and the result of intensity fluctuation correlation reconstruction algorithm. In comparison with common ghost imaging via sparsity constraint, both the simulated and experimental results demonstrate that the image’s SNR can be significantly enhanced by the proposed method especially when the sampling ratio is larger than 0.67 and the detection SNR is greater than 22 dB.

中文翻译：

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鬼成像的畸变点扩散函数和图像重建

摘要 我们阐明了低信噪比（SNR）的重影成像源于强度波动相关重建算法的扭曲点扩散函数。提出了一种基于畸变点扩散函数和强度波动相关重建算法结果的图像重建方法，以提高重影成像质量。与通过稀疏约束的普通重影成像相比，模拟和实验结果表明，该方法可以显着提高图像的信噪比，尤其是当采样率大于 0.67 和检测信噪比大于 22 dB 时。