A High-Speed Imaging Method Based on Compressive Sensing for Sound Extraction Using a Low-Speed Camera

	A High-Speed Imaging Method Based on Compressive Sensing for Sound Extraction Using a Low-Speed Camera
	Zhu, Ge; Yao, Xu-Ri; Sun, Zhi-Bin; Qiu, Peng; Wang, Chao; Zhai, Guang-Jie; Zhao, Qing; Zhao, Q (reprint author), Beijing Inst Technol, Sch Phys, Ctr Quantum Technol Res, Beijing 100081, Peoples R China.; Yao, XR (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Elect & Informat Technol Space Syst, Beijing 100190, Peoples R China.
刊名	SENSORS
	2018
卷号	18 期号:5 页码:1524
关键词	Sound Recovery High-speed Imaging Compressive Sensing Computational Imaging Remote Sensing Vibration Analysis
ISSN号	1424-8220
英文摘要	This paper reports an efficient method for sound extraction from high-speed light spot videos reconstructed from the coded light spot images captured with a low-speed camera based on compressive sensing, but at the expense of consuming time. The proposed method first gets the high-speed video of the light spot that is illuminated on the vibrating target caused by sound. Then the centroid of the light spot is used to recover the sound. Simulations of the proposed method are carried out and experimental results are demonstrated. The results show that high-speed videos with a frame rate of 2000 Hz can be reconstructed with a low-speed (100 Hz) charge-coupled device (CCD) camera, which is randomly modulated by a digital micro-mirror device (DMD) 20 times during each exposure time. This means a speed improvement of 20 times is achieved. The effects of synchronization between CCD image recording and DMD modulation, the optimal sampling patterns of DMD, and sound vibration amplitudes on the performance of the proposed method are evaluated. Using this compressive camera, speech (counting from one to four in Chinese) was recovered well. This has been confirmed by directly listening to the recovered sound, and the intelligibility value (0-1) that evaluated the similarity between them was 0.8185. Although we use this compressive camera for sound detection, we expect it to be useful in applications related to vibration and motion.
语种	英语
资助机构	National Science Foundation of China [11675014, 61274024, 61474123] ; Ministry of Science and Technology of China [2013YQ030595-3] ; National key research and development plan [2016YFE0131500] ; Youth Innovation Promotion Association [2013105] ; National Defense Science and Technology Innovation Foundation of Chinese Academy of Sciences [CXJJ-175023]
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6392]
专题	国家空间科学中心_空间技术部
通讯作者	Zhao, Q (reprint author), Beijing Inst Technol, Sch Phys, Ctr Quantum Technol Res, Beijing 100081, Peoples R China.; Yao, XR (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Elect & Informat Technol Space Syst, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Zhu, Ge,Yao, Xu-Ri,Sun, Zhi-Bin,et al. A High-Speed Imaging Method Based on Compressive Sensing for Sound Extraction Using a Low-Speed Camera[J]. SENSORS,2018,18(5):1524.
APA	Zhu, Ge.,Yao, Xu-Ri.,Sun, Zhi-Bin.,Qiu, Peng.,Wang, Chao.,...&Yao, XR .(2018).A High-Speed Imaging Method Based on Compressive Sensing for Sound Extraction Using a Low-Speed Camera.SENSORS,18(5),1524.
MLA	Zhu, Ge,et al."A High-Speed Imaging Method Based on Compressive Sensing for Sound Extraction Using a Low-Speed Camera".SENSORS 18.5(2018):1524.