Results 1 to 10 of about 2,343,049 (308)

Experimental Study on Bottom-Up Detection of Underwater Targets Based on Polarization Imaging [PDF]

Sensors, 2022
Previous studies on the polarization imaging of underwater targets mainly focused on top-down detection; however, the capacities of bottom-up detection were poorly known.
Tianfeng Pan, Xianqiang He, Xuan Zhang, Jia Liu, Yan Bai, Fang Gong, Teng Li   +6 more
doaj   +5 more sources

Principle and Implementation of Stokes Vector Polarization Imaging Technology

Applied Sciences, 2022
Compared with traditional imaging methods, polarization imaging has its unique advantages in many directions and has great development prospects. It is one of the hot spots of research and development at home and abroad. Based on the polarization imaging
Yong Wang, Yuqing Su, Xiangyu Sun, Xiaorui Hao, Yanping Liu, Xiaolong Zhao, Hongsheng Li, Xiushuo Zhang, Jing Xu, Jingjing Tian, Xiaofei Kong, Zhiwei Wang, Jie Yang   +12 more
doaj   +4 more sources

An Underwater Polarization Imaging Technique Based on the Construction and Decomposition of the Low-Rank and Sparse Matrix in Stokes Space for Polarization State Imaging [PDF]

Sensors
Traditional underwater polarization imaging methods can only provide clear degree of polarization (DOP) and intensity images of the object but cannot provide images of the polarization state of the object.
Pengfeng Liu, Yuxiang Zhai, Hongjin Zhu, Zijian Ye, Qinyu He, Zhilie Tang, Peijun Tang   +6 more
doaj   +2 more sources

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

Improved Models of Imaging of Skylight Polarization Through a Fisheye Lens

Sensors, 2019
Researchers have found that some animals can use the skylight polarization pattern for navigation. It is also expected to use the skylight polarization pattern for human navigating in the near future.
Shaobo Sun, Jun Gao, Daqian Wang, Tian Yang, Xin Wang   +4 more
doaj   +3 more sources

Multi-Angle Polarization Index System for Pollen Type Bioaerosol Recognition

Frontiers in Physics, 2022
In this work, we propose a high-throughput online identification method of bioaerosols based on multi-angle polarization index system (MAPIS). In the study, four categories and 10 subclasses of aerosol samples from biological and non-biological sources ...
Qizhi Xu, Qizhi Xu, Nan Zeng, Wei Guo, Wei Guo, Jun Guo, Yonghong He, Hui Ma, Hui Ma   +8 more
doaj   +1 more source

In-situ Detection Method for Microplastics in Water by Polarized Light Scattering

Frontiers in Marine Science, 2021
Microplastics (MPs) have become the widespread contaminants, which raises concerns on their ecological hazards. In-situ detection of MP in water bodies is essential for clear assessment of the ecological risks of MPs.
Tong Liu, Tong Liu, Shijun Yu, Shijun Yu, Xiaoshan Zhu, Ran Liao, Ran Liao, Zepeng Zhuo, Zepeng Zhuo, Yanping He, Hui Ma, Hui Ma   +11 more
doaj   +1 more source

Correlation analysis and application investigation of multi-angle simultaneous polarization measurement data and concentration of suspended particulate matter in the atmosphere

Frontiers in Environmental Science, 2022
Determining the composition, particle size distribution and concentration changes of suspended particulate matter in the atmosphere is important for evaluating the quality of air and its impact on public health.
Xuan Yuan, Jiawei Song, Jiawei Song, Nan Zeng, Jun Guo, Hui Ma, Hui Ma   +6 more
doaj   +1 more source

Unsupervised learning of pixel clustering in Mueller matrix images for mapping microstructural features in pathological tissues

Communications Engineering, 2023
In histopathology, doctors identify diseases by characterizing abnormal cells and their spatial organization within tissues. Polarization microscopy and supervised learning have been proved as an effective tool for extracting polarization parameters to ...
Jiachen Wan, Yang Dong, Yue Yao, Weijin Xiao, Ruqi Huang, Jing-Hao Xue, Ran Peng, Haojie Pei, Xuewu Tian, Ran Liao, Honghui He, Nan Zeng, Chao Li, Hui Ma   +13 more
doaj   +1 more source

Imaging with Polarized Neutrons [PDF]

Journal of Imaging, 2018
Owing to their zero charge, neutrons are able to pass through thick layers of matter (typically several centimeters) while being sensitive to magnetic fields due to their intrinsic magnetic moment. Therefore, in addition to the conventional attenuation contrast image, the magnetic field inside and around a sample can be visualized by detecting changes ...
Nikolay Kardjilov, André Hilger, Ingo Manke, Markus Strobl, John Banhart   +4 more
openaire   +4 more sources