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	Contrasts of the polarization difference projection images with linearly and circularly polarized lights - art. no. 65340B
	Wang, Nana ; Shao, Hanrong ; He, Yongliong ; Ma, Hui
	2010-05-10 ; 2010-05-10
会议名称	Fifth International Conference on Photonics and Imaging in Biology and Medicine, Pts 1 and 2 ; 5th International Conference on Photonics and Imaging in Biology and Medicine ; Wuhan, PEOPLES R CHINA ; Web of Science
关键词	scattering polarization gating contrast Fourier spatial gating TURBID MEDIA Biophysics Engineering, Biomedical Optics Radiology, Nuclear Medicine & Medical Imaging
中文摘要	Polarization gating has been an attractive technique for optical imaging in turbid media. In this study, we investigate the polarization difference projection image (PDPI) in turbid media with linearly and circularly polarized lights. An iris is placed at the focal spot of the imaging optics to examine the influence of spatial filtering on imaging contrast. Polystyrene microsphere suspensions in Rayleigh and Mie domains are used as the phantoms. Scattering coefficient g, and anisotropy factor g are varied independently to obtain the quantitative relation between the PDPI contrasts and the optical properties of the phantom. We also compare the PDPI contrast with the contrast of degree of polarization (DOP). Primary results show that the PDPI contrast is better than DOP image contrast either in Rayleigh or Mic scattering domain. In the Mie scattering domain, linear and circular PDPI contrasts are compared for different scattering coefficients. We also discussed how Fourier spatial gating improves the image contrast. The results are compared with Monte Carlo simulation.
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING ; BELLINGHAM ; 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19998]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Nana,Shao, Hanrong,He, Yongliong,et al. Contrasts of the polarization difference projection images with linearly and circularly polarized lights - art. no. 65340B[C]. 见:Fifth International Conference on Photonics and Imaging in Biology and Medicine, Pts 1 and 2, 5th International Conference on Photonics and Imaging in Biology and Medicine, Wuhan, PEOPLES R CHINA, Web of Science.

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