Three-dimensional Fourier ghost imaging

doi:10.1016/j.ijleo.2020.165149

	Three-dimensional Fourier ghost imaging
	Huang, Jian 1,2; Shi, Dongfeng 1,2,3; Yuan, Kee 1,2; Hu, Shunxing 1,2
刊名	OPTIK
	2020-10-01
卷号	219
关键词	Time of flight Three-dimensional imaging Ghost imaging Fourier transform
ISSN号	0030-4026
DOI	10.1016/j.ijleo.2020.165149
通讯作者	Shi, Dongfeng(dfshi@aiofm.ac.cn)
英文摘要	Time-of-flight (TOF) three-dimensional (3D) imaging is an effective means for remote sensing and target recognition. Fourier ghost imaging (GI) acquires the Fourier spectrum first, then applies an inverse Fourier transform (IFT) to retrieve the image of interest. The Fourier spectrum can be artificially processed when needed. The Fourier spectrum of some partially transmissive occluders is generally concentrated in high-frequency regions. These occluders can be removed by applying an IFT using the low-frequency spectrum coverage. This strategy is innovative in TOF 3D GI. In a TOF 3D GI system with DMDs, the high repetition rate and short-pulse laser is generally employed, which is mismatched with the lower modulation frequency of grayscale patterns. The grayscale Fourier patterns are decomposed into binary patterns. The detected intensities corresponding to the binary patterns are multiplied by the corresponding weighted coefficients, and are summed to form the Fourier spectrum slices at different distances. Then, an IFT is applied to retrieve the image cubes, furtherly to obtain the depth maps with the image cubes. Two 3D experiments are carried out to evaluate the proposed technique. The results indicate the reflectivity and depth maps can reveal the information of the 3D objects under 25 % spectrum coverage. From an imaging experiment through a partially transmissive occluder, we we find the reflectivity and the depth map obtained by the low-frequency Fourier spectral coverage are significantly better than those obtained reconstructions with complete spectral coverage. These preliminary results indicate TOF 3D Fourier GI has potential advantages in the removal of netting.
资助项目	National Natural Science Foundation of China[41505019] ; National Natural Science Foundation of China[41475001] ; State Key Laboratory of Pulsed Power Laser Technology[SKL2018ZR10] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2020438] ; Youth Fund of Advanced Laser Technology Laboratory of Anhui Province[20192201]
WOS关键词	MOVING-OBJECTS ; SINGLE ; TRACKING
WOS研究方向	Optics
语种	英语
出版者	ELSEVIER GMBH
WOS记录号	WOS:000612544800043
资助机构	National Natural Science Foundation of China ; State Key Laboratory of Pulsed Power Laser Technology ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Fund of Advanced Laser Technology Laboratory of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/119677]
专题	中国科学院合肥物质科学研究院
通讯作者	Shi, Dongfeng
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei 230031, Peoples R China 3.Adv Laser Technol Lab Anhui Prov, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Huang, Jian,Shi, Dongfeng,Yuan, Kee,et al. Three-dimensional Fourier ghost imaging[J]. OPTIK,2020,219.
APA	Huang, Jian,Shi, Dongfeng,Yuan, Kee,&Hu, Shunxing.(2020).Three-dimensional Fourier ghost imaging.OPTIK,219.
MLA	Huang, Jian,et al."Three-dimensional Fourier ghost imaging".OPTIK 219(2020).