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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [7]
地质与地球物理研究所 [5]
高能物理研究所 [2]
南海海洋研究所 [1]
数学与系统科学研究院 [1]
遥感与数字地球研究所 [1]
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OAI收割 [18]
iSwitch采集 [1]
内容类型
会议论文 [10]
期刊论文 [9]
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2023 [1]
2020 [2]
2018 [2]
2014 [1]
2012 [2]
2011 [3]
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Geochemist... [1]
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Automatic P-Phase-Onset-Time-Picking Method of Microseismic Monitoring Signal of Underground Mine Based on Noise Reduction and Multiple Detection Indexes
期刊论文
OAI收割
ENTROPY, 2023, 卷号: 25, 期号: 10, 页码: 16
作者:
Dai, Rui
;
Wang, Yibo
;
Zhang, Da
;
Ji, Hu
  |  
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2023/12/27
microseisms
P-phase onset time picking
STA/LTA method
AIC method
skew and kurtosis method
wavelet coefficient threshold denoising in time-frequency domain
Acoustic multi-parameter full waveform inversion based on the wavelet method
期刊论文
OAI收割
INVERSE PROBLEMS IN SCIENCE AND ENGINEERING, 2020, 页码: 28
作者:
Zhang, Wensheng
  |  
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2020/09/23
Full waveform inversion
multi-parameter
wavelet method
numerical schemes
acoustic wave
time domain
UAV target saliency detection based on frequency domain transform
会议论文
OAI收割
Xiamen, PEOPLES R CHINA, 2020-08-25
作者:
Wang, Xin
;
Li, Zhe
;
Tian, Yan
  |  
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2021/06/04
UAV
saliency detection
frequency domain
wavelet transform
A Reweighted Joint Spatial-Radon Domain CT Image Reconstruction Model for Metal Artifact Reduction
期刊论文
OAI收割
SIAM JOURNAL ON IMAGING SCIENCES, 2018, 卷号: 11, 期号: 1, 页码: 707-733
作者:
Zhang, HM
;
Liu, BD
;
Liu BD(刘宝东)
;
Dong, B
  |  
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2019/09/24
computerized tomography
metal artifact reduction
tight wavelet frame
joint spatial and radon domain reconstruction
A reweighted joint spatial-radon domain ct image reconstruction model for metal artifact reduction
期刊论文
iSwitch采集
Siam journal on imaging sciences, 2018, 卷号: 11, 期号: 1, 页码: 707-733
作者:
Zhang, Haimiao
;
Dong, Bin
;
Liu, Baodong
收藏
  |  
浏览/下载:55/0
  |  
提交时间:2019/04/23
Computerized tomography
Metal artifact reduction
Tight wavelet frame
Joint spatial and radon domain reconstruction
Research of OBC and cable data matched filtering in wavelet domain
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2014, 卷号: 57, 期号: 1, 页码: x
Zhu, JM
;
Fang, ZY
;
Zhang, XY
;
Zhang, LX
;
Xie, SL
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2014/12/11
Wavelet domain matched filter
OBC
Cable data
Data combined
Frequency-related factors analysis in frequency domain waveform inversion
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2012, 卷号: 55, 期号: 4, 页码: 1345-1353
作者:
Liu Guo-Feng
;
Liu Hong
;
Meng Xiao-Hong
;
Yan Hao-Fei
  |  
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2018/09/26
Frequency Domain Waveform Inversion
Multi-scale
Spectrum Width
Wavelet
Frequency-related factors analysis in frequency domain waveform inversion
期刊论文
OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2012, 卷号: 55, 期号: 4, 页码: 1345-1353
作者:
Liu Guo-Feng
;
Liu Hong
;
Meng Xiao-Hong
;
Yan Hao-Fei
  |  
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2018/09/26
Frequency Domain Waveform Inversion
Multi-scale
Spectrum Width
Wavelet
Phase-locked and non-phase-locked event-related oscillations and channel power spectra analysis during motor imagery with speed parameters for BCRI
会议论文
OAI收割
5th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2011, Wuhan, China, May 10-12, 2011
作者:
Fu YF(伏云发)
;
Xu BL(徐保磊)
;
Pei LL(裴立力)
;
Li HY(李洪谊)
收藏
  |  
浏览/下载:42/0
  |  
提交时间:2012/06/06
Bioinformatics
Biomedical engineering
Feature extraction
Frequency bands
Investments
Power spectrum
Robots
Time domain analysis
Wavelet transforms
Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wu Z.-G.
;
Wang M.-J.
;
Han G.-L.
收藏
  |  
浏览/下载:84/0
  |  
提交时间:2013/03/25
Being an efficient method of information fusion
image fusion has been used in many fields such as machine vision
medical diagnosis
military applications and remote sensing.In this paper
Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing
including segmentation
target recognition et al.
and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First
the two original images are decomposed by wavelet transform. Then
based on the PCNN
a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength
so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So
the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment
the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range
which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore
by this algorithm
the threshold adjusting constant is estimated by appointed iteration number. Furthermore
In order to sufficient reflect order of the firing time
the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved
each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules
the experiments upon Multi-focus image are done. Moreover
comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.