Results 11 to 20 of about 2,216,660 (308)

Cloud Detection Method Based on All-Sky Polarization Imaging. [PDF]

Sensors (Basel), 2022
Sky cloud detection has a significant application value in the meteorological field. The existing cloud detection methods mainly rely on the color difference between the sky background and the cloud layer in the sky image and are not reliable due to the ...
Li W, Cao Y, Zhang W, Ning Y, Xu X.
europepmc   +2 more sources

Polarization Measurements and Evaluation Based on Multidimensional Polarization Indices Applied in Analyzing Atmospheric Particulates

Applied Sciences, 2021
Online identification and characterization of suspended aerosols can provide a scientific basis for understanding aerosol transformations, quantitatively evaluating the impacts on air quality, public health, and the source apportionment of different ...
Riwei Liao, Wei Guo, Nan Zeng, Jun Guo, Yonghong He, Huige Di, Dengxin Hua, Hui Ma   +7 more
doaj   +1 more source

Multiband Polarization Imaging [PDF]

Journal of Sensors, 2016
Multiband polarization imaging is an emerging sensing method that enables simultaneous acquisition of multiband spectral and multiangle polarization information of an object of interest in the scene. Spectral signatures of the light reflected from a target reveal the characteristics of the material composing the target while polarized light provides ...
Yongqiang Zhao 0001, Qunnie Peng, Chen Yi, Seong G. Kong   +3 more
openaire   +2 more sources

Mueller Matrix Imaging Optimized by Uniform Illumination

Frontiers in Physics, 2022
In this study, we present a flat-field Mueller matrix imaging system to reduce the reconstruction error caused by critical illumination. This study demonstrates that the signal-to-noise ratio (SNR) of the reconstructed images is improved by about eight ...
Wei Guo, Wei Guo, Jiawei Song, Jiawei Song, Nan Zeng, Hui Ma, Hui Ma, Hui Ma   +7 more
doaj   +1 more source

Evaluating Tissue Mechanical Properties Using Quantitative Mueller Matrix Polarimetry and Neural Network

Applied Sciences, 2022
Evaluation of the mechanical properties of biological tissues has always been an important issue in the field of biomedicine. The traditional method for mechanical properties measurement is to perform in vitro tissue deformation experiments.
Changjiang Mi, Conghui Shao, Honghui He, Chao He, Hui Ma   +4 more
doaj   +1 more source

Polarization Aberrations in High-Numerical-Aperture Lens Systems and Their Effects on Vectorial-Information Sensing

Remote Sensing, 2022
The importance of polarization aberrations has been recognized and studied in numerous optical systems and related applications. It is known that polarization aberrations are particularly crucial in certain photogrammetry and microscopy techniques that ...
Yuanxing Shen, Binguo Chen, Chao He, Honghui He, Jun Guo, Jian Wu, Daniel S. Elson, Hui Ma   +7 more
doaj   +1 more source

A Smartphone-Based Biosensor for Non-Invasive Monitoring of Total Hemoglobin Concentration in Humans with High Accuracy

Biosensors, 2022
In this paper, we propose a smartphone-based biosensor for detecting human total hemoglobin concentration in vivo with high accuracy. Compared to the existing biosensors used to measure hemoglobin concentration, the smartphone-based sensor utilizes the ...
Zhipeng Fan, Yong Zhou, Haoyu Zhai, Qi Wang, Honghui He   +4 more
doaj   +1 more source

Analyzing the Influence of Imaging Resolution on Polarization Properties of Scattering Media Obtained From Mueller Matrix

Frontiers in Chemistry, 2022
The Mueller matrix contains abundant micro- and even nanostructural information of media. Especially, it can be used as a powerful tool to characterize anisotropic structures quantitatively, such as the particle size, density, and orientation information
Conghui Shao, Conghui Shao, Binguo Chen, Binguo Chen, Binguo Chen, Honghui He, Honghui He, Chao He, Yuanxing Shen, Yuanxing Shen, Yuanxing Shen, Haoyu Zhai, Haoyu Zhai, Haoyu Zhai, Hui Ma, Hui Ma, Hui Ma   +16 more
doaj   +1 more source

Polarimetry feature parameter deriving from Mueller matrix imaging and auto-diagnostic significance to distinguish HSIL and CSCC

Journal of Innovative Optical Health Sciences, 2022
High-grade squamous intraepithelial lesion (HSIL) is regarded as a serious precancerous state of cervix, and it is easy to progress into cervical invasive carcinoma which highlights the importance of earlier diagnosis and treatment of cervical lesions ...
Anli Hou, Xingjian Wang, Yujuan Fan, Wenbin Miao, Yang Dong, Xuewu Tian, Jibin Zou, Hui Ma   +7 more
doaj   +1 more source

A quantitative technique to analyze and evaluate microstructures of skin hair follicles based on mueller matrix polarimetry

Frontiers in Physics, 2022
In this study, we propose a quantitative technique to analyze and evaluate microstructures of skin hair follicles based on Mueller Matrix transmission microscopy.
Yixuan Shi, Yixuan Shi, Yanan Sun, Rongrong Huang, Rongrong Huang, Yong Zhou, Haoyu Zhai, Haoyu Zhai, Zhipeng Fan, Zhipeng Fan, Zechao Ou, Pengsheng Huang, Honghui He, Honghui He, Chao He, Yi Wang, Hui Ma, Hui Ma, Hui Ma   +18 more
doaj   +1 more source