杂散光
光学
探测器
空间光调制器
计算机科学
像素
数字微镜装置
光路
连贯性(哲学赌博策略)
鬼影成像
图像质量
光电探测器
哈达玛变换
物理
计算机视觉
图像(数学)
量子力学
作者
Tian‐Tian Zhang,Zhiyuan Ye,Haibo Wang,Jun Xiong
出处
期刊:Applied Optics
[Optica Publishing Group]
日期:2021-10-20
卷期号:60 (32): 10151-10151
被引量:4
摘要
Quantum-illumination-inspired single-pixel imaging (QII-SPI) or computational ghost imaging protocol is proposed to improve image quality in the presence of strong background and stray light. According to the reversibility of the optical path, a digital micro-mirror device acts as a structured light modulator and a spatial light filter simultaneously, which can effectively eliminate 50% of stray light. Accompanied by a 6 dB gain of detection signal-to-noise ratio under an equivalent loss condition, our scheme only requires a simple and minor modification on the placement of the single-pixel detector based on the original SPI system. Since QII-SPI will obtain almost the same reconstruction results as the passive SPI technology in principle, one can, therefore, adjust the placement position of the detector, without exchanging the relative position of the detector and the light source to realize the flexible conversion of the SPI system from active to passive. Also, this work initially discusses the influence of relative coherence time on Hadamard-based SPI driven by a thermal source. This work brings new insights into the optical path design of the SPI technology, paving the way for the practical application of active SPI in stray light environments.
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