Ming-Fei Li, Lu Yan, Ran Yang, Jun Kou, Yuan-Xing Liu. Turbulence-free intensity fluctuation self-correlation imaging with sunlight [J]. Acta Physica Sinica, 2019, 68(9): 094204-1
- Acta Physica Sinica
- Vol. 68, Issue 9, 094204-1 (2019)
Fig. 1. Schematic diagram of the experimental setup.实验原理示意图
Fig. 2. Target photo is taken from about 200 m. The object is the Beijing Central Radio and TV Tower with the distance from our experimental location is about L =
measured by GPS in digital map.
目标物体(成像目标: 北京中央广播电视塔, 200 m附近拍摄图像, 放大区域为成像区域; 在数字地图GPS定位下目标与实验地点距离
)
Fig. 3. Images snapped by CCD camera: (a), (b), (c) and (d) are four snapped images with 100 μs exposure time.实验系统中CCD相机拍摄图像 (a), (b), (c)和(d)为不同时间连续拍摄获得
Fig. 4. Experimental results: (a) Single shot image; (b) image averaged by 500 frames; (c) intensity fluctuation correlated imaging; (d) second order sunlight intensity self-correlation imaging.实验测试结果 (a) CCD单次曝光成像; (b)测量次数
累加平均图像; (c) 传统强度涨落关联成像; (d)强度自关联成像, 或强度方差成像
Fig. 5. Mask for object and background segmentation: Pixels in the white region as object, black region as background.分离物体与背景的掩模(白色为物体区域, 黑色为背景区域)
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20