High-Precision Calibration Algorithm for Large Field-of-View Polarization-Modulated 3D Imaging

doi:10.1109/LPT.2019.2907044

	High-Precision Calibration Algorithm for Large Field-of-View Polarization-Modulated 3D Imaging
	Wang, Shengjie 1,2; Liu, Bo 2; Chen, Zhen 2; Li, Heping 1
刊名	IEEE Photonics Technology Letters
	2019-07-01
卷号	31 期号:13 页码:1064-1067
关键词	Laser radar polarization modulation high precision large field-of-view
ISSN号	1041-1135
DOI	10.1109/LPT.2019.2907044
文献子类	期刊论文
英文摘要	To improve the performance of 3D LiDAR imaging and reduce the negative effects of interference fringes on polarization modulation of electro-optical crystals, a calibration algorithm based on polarization modulation principle was proposed in this letter. The reflect light of targets is received by the system, modulated by an electro-optical crystal, then divided into two complementary light beams after passing through polarization beam splitting (PBS), and finally received by two electron-multiplying CCDs (EMCCDs). The depth map and intensity image can be reconstructed by adding the two modulated images. However, the cone interference effect of the electro-optic crystal affects the modulation of the polarized light, resulting in the distance error. By fitting the curve of grayscale ratio of each pixel acquired by two EMCCDs with the changing of voltage, the actual range can be calculated by the light intensity corresponding to the accurate polarization modulation. Ultimately, we found that the algorithm showed outstanding performance on high-precision imaging with an error less than 0.1m in a wide field-of-view of 0.9 mrad. © 1989-2012 IEEE.
WOS研究方向	Engineering, Electrical & Electronic ; Optics ; Physics, Applied
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
WOS记录号	WOS:000472602700001
内容类型	期刊论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9708]
专题	空天部
作者单位	1.University of Electronic Science and Technology of China, Chengdu; 610209, China 2.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China;
推荐引用方式 GB/T 7714	Wang, Shengjie,Liu, Bo,Chen, Zhen,et al. High-Precision Calibration Algorithm for Large Field-of-View Polarization-Modulated 3D Imaging[J]. IEEE Photonics Technology Letters,2019,31(13):1064-1067.
APA	Wang, Shengjie,Liu, Bo,Chen, Zhen,&Li, Heping.(2019).High-Precision Calibration Algorithm for Large Field-of-View Polarization-Modulated 3D Imaging.IEEE Photonics Technology Letters,31(13),1064-1067.
MLA	Wang, Shengjie,et al."High-Precision Calibration Algorithm for Large Field-of-View Polarization-Modulated 3D Imaging".IEEE Photonics Technology Letters 31.13(2019):1064-1067.