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科研机构
北京大学 [62]
内容类型
期刊论文 [52]
其他 [8]
会议论文 [2]
发表日期
2017 [5]
2016 [12]
2015 [11]
2014 [10]
2013 [7]
2012 [5]
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专题:北京大学
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基于照度调整的矿井非均匀照度视频图像增强算法
期刊论文
煤炭学报, 2017
智宁
;
毛善君
;
李梅
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2017/12/03
非均匀照度
多尺度引导滤波
亮度调整
细节增强参数
照度增强系数
non-uniform illumination
multiscale guided filter
illumination adjustment
detail enhancement coefficient
the illumination enhancement coefficient
Thermodynamic properties of nanoparticles during new particle formation events in the atmosphere of North China Plain
期刊论文
ATMOSPHERIC RESEARCH, 2017
Wu, Z. J.
;
Ma, N.
;
Groess, J.
;
Kecorius, S.
;
Lu, K. D.
;
Shang, D. J.
;
Wang, Y.
;
Wu, Y. S.
;
Zeng, L. M.
;
Hu, M.
;
Wiedensohler, A.
;
Zhang, Y. H.
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
New particle formation
Particle hygroscopicity
Air pollution
CCN
Particle formation and growth
Particle volatility
CLOUD CONDENSATION NUCLEI
SECONDARY ORGANIC AEROSOL
BOREAL FOREST
HYGROSCOPIC GROWTH
SIZE DISTRIBUTION
POTENTIAL CONTRIBUTION
RELATIVE-HUMIDITY
AIR-POLLUTION
CCN ACTIVITY
ACTIVATION
Effects of HfO2/Co interface and Co/HfO2 interface on anomalous Hall behavior in perpendicular Co/Pt multilayers
期刊论文
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2017
Jiang, Shao-Long
;
Yang, Guang
;
Teng, Jiao
;
Guo, Qi-Xun
;
Liu, Yi-Wei
;
Li, Xu-Jing
;
Yu, Guang-Hua
收藏
  |  
浏览/下载:5/0
  |  
提交时间:2017/12/03
Anomalous Hall effect
Perpendicular Co/Pt multilayers
Thermal stability
ANISOTROPY
Electromagnetic Time-Reversal Imaging Using Grouped Sub-Arrays for Resolution Enhancements
期刊论文
APPLIED COMPUTATIONAL ELECTROMAGNETICS SOCIETY JOURNAL, 2017
Li, Yuan-Qi
;
Zhang, Xiang-Qian
;
Xia, Ming-Yao
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Grouped sub-arrays
imaging
resolution enhancement
signal normalization
time-reversal
WIRELESS COMMUNICATIONS
ULTRASONIC FIELDS
TARGET
ENVIRONMENT
MEDIA
SCHIZOPHRENIA AFFECTS SPEECH-INDUCED FUNCTIONAL CONNECTIVITY OF THE SUPERIOR TEMPORAL GYRUS UNDER COCKTAIL-PARTY LISTENING CONDITIONS
期刊论文
NEUROSCIENCE, 2017
Li, Juanhua
;
Wu, Chao
;
Zheng, Yingjun
;
Li, Ruikeng
;
Li, Xuanzi
;
She, Shenglin
;
Wu, Haibo
;
Peng, Hongjun
;
Ning, Yuping
;
Li, Liang
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2017/12/03
schizophrenia
speech perception
precedence effect
functional connectivity
masking
superior temporal gyrus
PERCEIVED SPATIAL SEPARATION
EVENT-RELATED FMRI
INFORMATIONAL MASKING
CHINESE SPEECH
MASKED SPEECH
OLDER-ADULTS
PERCEPTION
RECOGNITION
CORTEX
INTEGRATION
Rapid enhancement of low-energy (< 100eV) ion flux in response to interplanetary shocks based on two Van Allen Probes case studies: Implications for source regions and heating mechanisms
期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2016
Yue, Chao
;
Li, Wen
;
Nishimura, Yukitoshi
;
Zong, Qiugang
;
Ma, Qianli
;
Bortnik, Jacob
;
Thorne, Richard M.
;
Reeves, Geoffrey D.
;
Spence, Harlan E.
;
Kletzing, Craig A.
;
Wygant, John R.
;
Nicolls, Michael J.
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2017/12/03
enhancement of low-energy ion flux
response to IP shocks
adiabatic accelerations
ionospheric ion outflows
DAWN-DUSK ASYMMETRY
INNER MAGNETOSPHERE
GEOSYNCHRONOUS ORBIT
IMAGER OBSERVATIONS
CYCLOTRON WAVES
MAGNETIC-FIELD
SUBSTORMS
WIND
ENERGIZATION
LOCATION
Perceptual Learning of Contrast Detection in the Human Lateral Geniculate Nucleus
期刊论文
CURRENT BIOLOGY, 2016
Yu, Qinlin
;
Zhang, Peng
;
Qiu, Jiang
;
Fang, Fang
收藏
  |  
浏览/下载:7/0
  |  
提交时间:2017/12/03
PRIMARY VISUAL-CORTEX
CORTICAL PLASTICITY
OCULAR DOMINANCE
TEXTURE-DISCRIMINATION
MONOCULAR DEPRIVATION
STRIATE CORTEX
V1 NEURONS
AREA V4
ORIENTATION
RESPONSES
Saliency-Guided Quality Assessment of Screen Content Images
期刊论文
IEEE TRANSACTIONS ON MULTIMEDIA, 2016
Gu, Ke
;
Wang, Shiqi
;
Yang, Huan
;
Lin, Weisi
;
Zhai, Guangtao
;
Yang, Xiaokang
;
Zhang, Wenjun
收藏
  |  
浏览/下载:2/0
  |  
提交时间:2017/12/03
Image quality assessment (IQA)
screen content images (SCI)
visual saliency
VISUAL-ATTENTION
STRUCTURAL SIMILARITY
NEURAL MECHANISMS
MODEL
INFORMATION
Guided Image Contrast Enhancement Based on Retrieved Images in Cloud
期刊论文
IEEE TRANSACTIONS ON MULTIMEDIA, 2016
Wang, Shiqi
;
Gu, Ke
;
Ma, Siwei
;
Lin, Weisi
;
Liu, Xianming
;
Gao, Wen
收藏
  |  
浏览/下载:4/0
  |  
提交时间:2017/12/03
Contrast enhancement
image quality assessment
retrieved images
unsharp masking
sigmoid transfer mapping
free-energy
surface quality
FREE-ENERGY PRINCIPLE
HISTOGRAM EQUALIZATION
QUALITY ASSESSMENT
VISUAL-ATTENTION
MEDIAN FILTERS
VIDEO
PRESERVATION
COMPRESSION
FEATURES
Image enhancement based on in vivo hyperspectral gastroscopic images: a case study
期刊论文
JOURNAL OF BIOMEDICAL OPTICS, 2016
Gu, Xiaozhou
;
Han, Zhimin
;
Yao, Liqing
;
Zhong, Yunshi
;
Shi, Qiang
;
Fu, Ye
;
Liu, Changsheng
;
Wang, Xiguang
;
Xie, Tianyu
收藏
  |  
浏览/下载:3/0
  |  
提交时间:2017/12/03
hyperspectral imaging
flexible endoscope
dependence of information
image enhancement
CANCER-DETECTION
REGISTRATION
ENDOSCOPE
SYSTEM
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