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A simple method for estimating macroalgae area under clouds on MODIS imagery
期刊论文
FRONTIERS IN MARINE SCIENCE, 2022, 卷号: 9, 页码: 10
作者:
An, Deyu
;
Xing, Qianguo
;
Yu, Dingfeng
;
Pan, Shunqi
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2023/01/11
macroalgae blooms
MODIS imagery
clouds
method of estimating macroalgae area
multi-sensor images
Improving Multi-contrast Imaging with Reference Guided Location and Orientation Priors on Edges
期刊论文
Applied Magnetic Resonance, 2019, 卷号: 50, 页码: 137-158
作者:
Zhu, Qingyong
;
Wang, Wei
收藏
  |  
浏览/下载:9/0
  |  
提交时间:2019/11/19
Alternating direction method of multipliers
Contrast imaging
High resolution
Multi-channel acquisition
Multiple reference images
Parallel imaging
Reconstruction method
Reference image
A variational model with hybrid Hyper-Laplacian priors for Retinex
期刊论文
Applied Mathematical Modelling, 2019, 卷号: 66, 页码: 305-321
作者:
Cheng, Ming-Hui
;
Huang, Ting-Zhu
;
Zhao, Xi-Le
;
Ma, Tian-Hui
;
Huang, Jie
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  |  
浏览/下载:22/0
  |  
提交时间:2019/11/19
Alternating direction method of multiplier (ADMM)
Alternating direction method of multipliers
Laplacians
Numerical experiments
Reflectance images
Retinex
State-of-the-art methods
Variational modeling
Investigation of Induced Charge Mechanism on a Rod Electrode
期刊论文
ELECTRONICS, 2019, 卷号: 8, 期号: 9
作者:
Li, Jiming
;
Li, Jingyu
;
Cheng, Xuezhen
;
Feng, Guojin
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2019/12/11
rod electrode
electrostatic induction
method of images
induced
charge
induced current
Automatic and optimal segmentation of the left ventricle in cardiac magnetic resonance images independent of the training sets
期刊论文
IET IMAGE PROCESSING, 2019, 卷号: 13, 期号: 10, 页码: 1725-1735
作者:
Wang, Zhenzhou
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  |  
浏览/下载:11/0
  |  
提交时间:2019/12/11
biomedical MRI
learning (artificial intelligence)
image segmentation
medical image processing
cardiology
deep learning-based methods
significant break-throughs
complete training sets
training
sets-independent method
segment LV optimally
available
state-of-the-art training-sets-independent image segmentation methods
segmentation method
poor quality images
optimal solution
state-of-the-art training-sets-independent segmentation methods
optimal
segmentation
left ventricle
cardiac magnetic resonance images
cardiac
imaging
食用蔬菜能吸收和积累微塑料
期刊论文
科学通报, 2019, 卷号: 64, 期号: 9, 页码: 928-934
作者:
李连祯
;
周倩
;
尹娜
;
涂晨
;
骆永明
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  |  
浏览/下载:63/0
  |  
提交时间:2020/06/17
微塑料
生菜
聚苯乙烯微球
吸收
积累
健康风险
microplastics
lettuce
polystyrene microbeads
uptake
accumulation
human health risk
Microplastic (MP, 100 nm-5 mm) may present an attributable risk to ecosystem and human health, and its pollution has become a global environmental concern. Despite a wealth of information on the accumulation of MPs in aquatic species, there is no information on the uptake and accumulation of MPs by higher plants. Terrestrial edible plants are directly exposed to MPs when agricultural soil was applied with organic manure, sewage sludge as fertilizer or plastic mulching. In this paper, the uptake of two sizes of polystyrene (PS) microbeads (0.2 and 1.0 mum) and then their distribution and migration in an edible plant lettuce were firstly investigated based on laboratory experiments. We used fluorescent markers to track PS microbeads in plant tissues and found fluorescence to be a sensitive and reliable detection method. Sections from untreated control lettuce showed no autofluorescence. When roots were treated with fluorescently labeled PS microbeads, the microbeads could be identified by its fluorescence. Our main study investigated the uptake of 0.2 mum beads, as few luminescence signals were observed in lettuce roots for 1.0 mum beads in our experiment. We observed that 0.2 mum fluorescent microbeads were extracellularly trapped in the root cap mucilage (which is a highly hydrated polysaccharide) and a dark green tip (which was typical of lettuce roots exposed to label PS beads) was usually visible to the naked eye. Confocal images revealed that the PS luminescence signals were mainly located in the vascular system and on the cell walls of the cortex tissue of the roots, indicated that the beads passed through the intercellular space via the apoplastic transport system. Once inside the central cylinder, the 0.2 mum PS beads were transferred from the roots to the stems and leaves via the vascular system following the transpiration stream. We also observed that the PS beads adhered to one another and self-assembled systematically into grape-like and (chain) string-like clusters in the intercellular space of the root and stem vascular tissue of lettuce plant. In contrast to the root and stem, PS beads were dispersed in the leaf tissue. Here, for the first time we provide evidence of the adherence, uptake, accumulation, and translocation of submicrometer MPs within an edible plant. Our findings highlight the previously underappreciated human exposure pathway to MPs through the consumption of contaminated crops and emphasize the need for new management strategies to control the release of MPs waste products into the terrestrial environment. Ultimately, the potential impacts of low range sized MPs on food safety of crop plants and human health need to be urgently considered.
Research on Evaluation of Product Image Design Elements Based on Eye Movement Signal
会议论文
Orlando, FL, United states, July 26, 2019 - July 31, 2019
作者:
Yang, Wenjin
;
Su, Jianning
;
Qiu, Kai
;
Zhang, Xinxin
;
Zhang, Shutao
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2020/11/15
Couplings
Design of experiments
Ergonomics
Eye tracking
Human computer interaction
Product design
Contribution ranking
Design elements
Evaluation modeling
Experimental design method
Eye movement datum
Product images
Product modeling
Weight calculation
A method of image processing with QR code ablated on rough and highly reflective metal surface by laser
会议论文
Shanghai, China, October 12, 2018 - October 14, 2018
作者:
Li, Jianhua
;
Shen, Zhi
;
Yan, Chaoning
;
Dong, Nan
;
Liang, Haimin
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2020/11/15
Aluminum castings
Classification (of information)
Codes (symbols)
Ingots
K-means clustering
Morphology
Textures
Aluminum ingots
Color features
Highly reflective
Metal surfaces
Method of images
Multi-feature fusion
Otsu algorithm
Texture features
Hand Detection from Cluttered Images Based on a Hierarchical Strategy
期刊论文
Lecture Notes in Electrical Engineering, 2018, 卷号: 458, 页码: 783-791
作者:
Qi, J.
;
Xu, K.
;
Ding, X.
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2019/12/30
Human computer interaction
Human robot interaction
Robots
Support vector machines
Cluttered backgrounds
Cluttered images
Hand detection
Hand posture
Hierarchical method
Hierarchical strategies
Histogram of oriented gradients
Length-width ratios
Palmprint recognition
Simulation of electromagnetic scattering from 2D sea surface with 3D electrically large ship target [二维海面上三维电大尺寸舰船目标电磁散射仿真]
期刊论文
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics, 2018, 卷号: 44, 页码: 2299-2304
作者:
Ge, Z.
;
Xian, N.
;
Wang, J.
;
Li, Y.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2019/12/30
Electromagnetic simulation
Electromagnetic wave scattering
Frequency domain analysis
Method of moments
Optical character recognition
Radar imaging
Ships
Surface scattering
Surface waters
Synthetic aperture radar
Electromagnetic scattering
High resolution range profiles
Inverse Fourier transforms
Parallel Computation
Rough sea surface
Scattering char-acteristics
Simulation and analysis
Synthetic aperture radar (SAR) images
Radar target recognition
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