Enhancing robustness of ghost imaging against environment noise via cross-correlation in time domain

• DOI: 10.1364/oe.439519
• Publication Date: 2021-09-07T17:30:09Z
• Authors: Dong Li; Ding Yang; Shuai Sun; Yue-Gang Li; Liang Jiang; Hui-Zu Lin; Wei-Tao Liu
• Keywords: Ghost Imaging; Robustness; Cross-correlation; Spatial frequency

Research towards practical applications of ghost imaging attracts more and attention in recent years. Signal-to-noise ratio (SNR) bucket results thus quality images can be greatly affected by environmental noise, such as strong background light. We introduce temporal cross-correlation into typical to improve SNR value, taking profile illumination pulses a prior information. Experimental at sunny noontime verified our method, with the improved for object distance 1.3 km . also show possibility 3-dimensional imaging, experimentally.