Results 31 to 40 of about 2,343,049 (308)

Measured and simulated performance of a ceramic micromechanical beam steering device at 94 GHz [PDF]

, 2008
We report the first experimental demonstration of a transmission-mode micromechanical beam steering device for use in standoff terahertz imaging and spectroscopy.
Drysdale, T.D., Walsby, E.D., Drysdale, T. D., Walsby, E. D., Cumming, D.R.S., Cumming, D. R. S.   +5 more
core   +1 more source

Polarization-sensitive digital holography for microplastic identification through scattering media

, 2023
A polarization-sensitive holographic imaging system is designed for identifying transparent microplastics (MPs) through scattering media. The degree of linear polarization (DoLP) is an angle-independent feature for distinguishing different types of MPs ...
Huang, Jianqing, Lam, Edmund Y., Li, Yuxing, Zhang, Yunping, Zhu, Yanmin   +4 more
core   +1 more source

A Table of Some Coherency Matrices, Coherency Matrix Factors, and Their Respective Mueller Matrices

Photonics, 2022
Many books on polarization give tables of Mueller matrices. The coherency matrix has been found useful for interpretetion of the Mueller matrix. Here we give a table of Mueller matrices M, coherency matrices C, and coherency matrix factors F for ...
Colin J. R. Sheppard, Artemi Bendandi, Aymeric Le Gratiet, Alberto Diaspro   +3 more
doaj   +1 more source

Analysis of multispectral polarization imaging image information based on micro-polarizer array. [PDF]

PLoS One
As a new detection technology, polarization imaging is of great significance in the field of target detection. At present, polarization imaging technology usually adopts visible light polarization imaging. The technique is difficult to image the target in complex background due to its narrow working spectrum and short detection distance.
Fu Q, Ma N, Liu X, Zhang Y, Zhan J, Zhang S, Duan J, Li Y.   +7 more
europepmc   +4 more sources

Polarization-artifact reduction and accuracy improvement of Jones-matrix polarization-sensitive optical coherence tomography by multi-focus averaging

, 2023
Polarization-sensitive optical coherence tomography (PS-OCT) is a promising biomedical imaging tool for differentiation of various tissue properties.
Yiheng Lim (308441), Yoshiaki Yasuno (308445), Lida Zhu (566946), Shuichi Makita (308442), Junya Tamaoki (14841127), Yiqiang Zhu (10180622), Makoto Kobayashi (86278)   +6 more
core   +1 more source

Illumination invariance and shadow compensation via spectro-polarimetry technique [PDF]

, 2013
A major problem for obtaining target reflectance via hyperspectral imaging systems is the presence of illumination and shadow effects. These factors are common artefacts, especially when dealing with a hyperspectral imaging system that has sensors in the
Jackman, James, Soori, Umair, Hong, Kan, Ibrahim, Izzati, Richardson, Mark A., Yuen, Peter W. T., Chen, Tong   +6 more
core   +1 more source

POLARIZATION IMAGING AND SCATTERING MODEL OF CANCEROUS LIVER TISSUES [PDF]

Journal of Innovative Optical Health Sciences, 2013
We apply different polarization imaging techniques for cancerous liver tissues, and compare the relative contrasts for difference polarization imaging (DPI), degree of polarization imaging (DOPI) and rotating linear polarization imaging (RLPI ...
DONGZHI LI, HONGHUI HE, NAN ZENG, E DU, RAN LIAO, YONGHONG HE, HUI MA, SHAOXIONG LIU, MINGHUA LI   +8 more
doaj   +1 more source

Rapid Detection of Camouflaged Artificial Target Based on Polarization Imaging and Deep Learning

IEEE Photonics Journal, 2021
Polarization imaging has the advantage of detecting artificial targets based on their intrinsic characteristics. However, with the development of camouflage materials and camouflage shielding performance, the anti-optical detection technology for ...
Ying Shen, Wenfu Lin, Zhifeng Wang, Jie Li, Xinquan Sun, Xianyu Wu, Shu Wang, Feng Huang   +7 more
doaj   +1 more source

Influence of absorption in linear polarization imaging of melanoma tissues [PDF]

Journal of Innovative Optical Health Sciences, 2014
The contrast mechanism of different polarization imaging techniques for melanoma in mouse skin is studied using both experiments and Monte Carlo simulations.
Dongzhi Li, Honghui He, Nan Zeng, Weidong Xie, Ran Liao, Jian Wu, Yonghong He, Hui Ma   +7 more
doaj   +1 more source

A polarization image enhancement method for glioma

Frontiers in Neuroscience, 2023
Polarization imaging technique (PIT) based on a backward scattering 3 × 3 Mueller matrix polarization imaging experimental setup is able to study the optical information and microstructure of glioma and non-glioblastoma tissues from clinical treatment ...
Yi-Rong Liu, Yi-Rong Liu, Chao-Feng Liang, Han-Qiao Zhao, Yun-Mou Ou, Jian Wu   +5 more
doaj   +1 more source