Results 1 to 10 of about 291,976 (179)

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
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Detection and Classification of Cotton Foreign Fibers Based on Polarization Imaging and Improved YOLOv5 [PDF]

Sensors, 2023
It is important to detect and classify foreign fibers in cotton, especially white and transparent foreign fibers, to produce subsequent yarn and textile quality.
Rui Wang, Zhi-Feng Zhang, Ben Yang, Hai-Qi Xi, Yu-Sheng Zhai, Rui-Liang Zhang, Li-Jie Geng, Zhi-Yong Chen, Kun Yang   +8 more
doaj   +2 more sources

Three Dimensional Shape Reconstruction via Polarization Imaging and Deep Learning [PDF]

Sensors, 2023
Deep-learning-based polarization 3D imaging techniques, which train networks in a data-driven manner, are capable of estimating a target’s surface normal distribution under passive lighting conditions.
Xianyu Wu, Penghao Li, Xin Zhang, Jiangtao Chen, Feng Huang   +4 more
doaj   +2 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

Enhanced Rail Surface Defect Segmentation Using Polarization Imaging and Dual-Stream Feature Fusion [PDF]

Sensors
Rail surface defects pose significant risks to the operational efficiency and safety of industrial equipment. Traditional visual defect detection methods typically rely on high-quality RGB images; however, they struggle in low-light conditions due to ...
Yucheng Pan, Jiasi Chen, Peiwen Wu, Hongsheng Zhong, Zihao Deng, Daozong Sun   +5 more
doaj   +2 more sources

Single-shot simultaneous intensity, phase and polarization imaging with metasurface. [PDF]

Natl Sci Rev
Bao Y, Li B.
europepmc   +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
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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