Results 21 to 30 of about 2,216,660 (308)

Research on Fuzzy Adaptive Fusion Algorithm for Ultraviolet Polarization Image of Latent Fingerprint [PDF]

Jisuanji gongcheng, 2020
The ultraviolet polarization image of latent fingerprint is fused of ultraviolet intensity image and polarization parameter image,which can realize accurate detection and recognition of latent fingerprint.However,it is impossible to select the optimal ...
JIA Rong, WANG Feng, YUAN Hongwu, TUO Haonan, JIANG Zhaozhen, WU Yunzhi
doaj   +1 more source

Convergence of illuminating beams suffering from scattering during the individual measurement of suspended particles

Frontiers in Physics, 2022
The convergent illuminating beam is the key factor during the individual measurement of suspended particles in aquatic suspensions. When the illuminating beam propagates in the suspension, the particle scattering in the optical path may destroy the ...
Jiajin Li, Jiajin Li, Hanbo Deng, Hanbo Deng, Zhiming Guo, Ran Liao, Ran Liao, Hui Ma, Hui Ma   +8 more
doaj   +1 more source

Restoration of Turbid Underwater Images of Cobalt Crusts Using Combined Homomorphic Filtering and a Polarization Imaging System. [PDF]

Sensors (Basel)
Marine cobalt-rich crusts, extensively used in industries such as aerospace, automotive, and electronics, are crucial mineral resources located on the ocean floor.
Peng E, Liu C, Zhao H.
europepmc   +2 more sources

Identification of serous ovarian tumors based on polarization imaging and correlation analysis with clinicopathological features

Journal of Innovative Optical Health Sciences, 2023
Ovarian cancer is one of the most aggressive and heterogeneous female tumors in the world, and serous ovarian cancer (SOC) is of particular concern for being the leading cause of ovarian cancer death.
Yulu Huang, Anli Hou, Jing Wang, Yue Yao, Wenbin Miao, Xuewu Tian, Jiawen Yu, Cheng Li, Hui Ma, Yujuan Fan   +9 more
doaj   +1 more source

Wide-field high-resolution Mueller matrix imaging via Fourier ptychography [PDF]

APL Photonics
Mueller matrix (MM) imaging enables label-free, non-invasive characterization of the microstructure and intrinsic optical properties of biological tissues and has emerged as a vital research direction in bio-optical imaging owing to its growing ...
Honghui He, Nan Zeng, Caizhong Guan, Shuan Yao   +3 more
doaj   +1 more source

Polarization Image Sensor for Highly Sensitive Polarization Modulation Imaging Based on Stacked Polarizers [PDF]

IEEE Transactions on Electron Devices, 2022
In this article, We demonstrated an image sensor for detecting changes in polarization with high sensitivity. For this purpose, we constructed an optical system with a two-layer structure, comprising an external polarizer and polarizers on a pixel array.
Kiyotaka Sasagawa, Ryoma Okada, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Jun Ohta   +5 more
openaire   +1 more source

Quantitative Analysis of 4 × 4 Mueller Matrix Transformation Parameters for Biomedical Imaging

Photonics, 2019
Mueller matrix polarimetry is a potentially powerful technique for obtaining microstructural information of biomedical specimens. Thus, it has found increasing application in both backscattering imaging of bulk tissue samples and transmission microscopic
Wei Sheng, Weipeng Li, Ji Qi, Teng Liu, Honghui He, Yang Dong, Shaoxiong Liu, Jian Wu, Daniel S. Elson, Hui Ma   +9 more
doaj   +1 more source

Terahertz polarization imaging

Optics Letters, 2005
We present a new method to measure the polarization state of a terahertz pulse by using a modified electro-optic sampling setup. To illustrate the power of this method, we show two examples in which the knowledge of the polarization of the terahertz pulse is essential for interpreting the results: spectroscopy measurements on polystyrene foam and ...
Van der Valk, N.C.J. (author), Van der Marel, W.A.M. (author), Planken, P.C.M. (author)   +2 more
openaire   +5 more sources

Analysis of erythrocyte deformation characteristics based on dual-angle Mueller matrix measurement [PDF]

Frontiers of Optoelectronics
Red blood cells (RBCs) are vital components of human blood, and their morphological abnormalities serve as reliable indicators of various disease pathophysiologies.
Shuan Yao, Caizhong Guan, Nan Zeng, Honghui He   +3 more
doaj   +1 more source

Polarization sensitive optical frequency domain imaging system for endobronchial imaging [PDF]

, 2015
A polarization sensitive endoscopic optical frequency domain imaging (PS-OFDI) system with a motorized distal scanning catheter is demonstrated. It employs a passive polarization delay unit to multiplex two orthogonal probing polarization states in depth,
Feroldi, F., Feroldi, Fabio; id_orcid, de Lange, J., de Boer, J.F.; id_orcid, Feroldi, Fabio, Daniels, J.M.A., de Boer, J.F., Li, J., Grünberg, K.   +8 more
core   +2 more sources