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CAS IR Grid
机构
长春光学精密机械与物... [3]
地质与地球物理研究所 [1]
自动化研究所 [1]
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OAI收割 [5]
内容类型
会议论文 [3]
期刊论文 [2]
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2022 [1]
2021 [1]
2011 [1]
2010 [1]
2009 [1]
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Separating Scholte Wave and Body Wave in OBN Data Using Wave-Equation Migration
期刊论文
OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 卷号: 60, 页码: 13
作者:
Li, Chao
;
Wang, Yuan
;
Zhang, Jinhai
;
Geng, Jianhua
;
You, Qingyu
  |  
收藏
  |  
浏览/下载:58/0
  |  
提交时间:2022/07/18
Surface waves
Sea surface
Filtering
Imaging
Cutoff frequency
Background noise
Underwater vehicles
Body wave
demigration
migration
ocean bottom node (OBN)
Scholte wave
wavefield separation
3D Vehicle Detection With RSU LiDAR for Autonomous Mine
期刊论文
OAI收割
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2021, 卷号: 70, 期号: 1, 页码: 344-355
作者:
Wang, Guojun
;
Wu, Jian
;
Xu, Tong
;
Tian, Bin
  |  
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2021/03/29
Laser radar
Three-dimensional displays
Filtering
Vehicle detection
Detectors
Roads
Feature extraction
Background filtering
3D object detection
deep learning
roadside LiDAR
point cloud
The new approach for infrared target tracking based on the particle filter algorithm (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:
Sun H.
;
Han H.-X.
;
Sun H.
收藏
  |  
浏览/下载:59/0
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提交时间:2013/03/25
Target tracking on the complex background in the infrared image sequence is hot research field. It provides the important basis in some fields such as video monitoring
precision
and video compression human-computer interaction. As a typical algorithms in the target tracking framework based on filtering and data connection
the particle filter with non-parameter estimation characteristic have ability to deal with nonlinear and non-Gaussian problems so it were widely used. There are various forms of density in the particle filter algorithm to make it valid when target occlusion occurred or recover tracking back from failure in track procedure
but in order to capture the change of the state space
it need a certain amount of particles to ensure samples is enough
and this number will increase in accompany with dimension and increase exponentially
this led to the increased amount of calculation is presented. In this paper particle filter algorithm and the Mean shift will be combined. Aiming at deficiencies of the classic mean shift Tracking algorithm easily trapped into local minima and Unable to get global optimal under the complex background. From these two perspectives that "adaptive multiple information fusion" and "with particle filter framework combining"
we expand the classic Mean Shift tracking framework.Based on the previous perspective
we proposed an improved Mean Shift infrared target tracking algorithm based on multiple information fusion. In the analysis of the infrared characteristics of target basis
Algorithm firstly extracted target gray and edge character and Proposed to guide the above two characteristics by the moving of the target information thus we can get new sports guide grayscale characteristics and motion guide border feature. Then proposes a new adaptive fusion mechanism
used these two new information adaptive to integrate into the Mean Shift tracking framework. Finally we designed a kind of automatic target model updating strategy to further improve tracking performance. Experimental results show that this algorithm can compensate shortcoming of the particle filter has too much computation
and can effectively overcome the fault that mean shift is easy to fall into local extreme value instead of global maximum value.Last because of the gray and fusion target motion information
this approach also inhibit interference from the background
ultimately improve the stability and the real-time of the target track. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
Speech signal enhancement through wavelet domain MMSE filtering (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Fenghua Z.
;
Le Y.
;
Jian W.
;
Qiang S.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
A new speech enhancement system that combine robust signal enhancement and minimum signal distortion is proposed in this paper. The proposed method introduces frequency depended
parametric
MMSE filtering techniques that involve wavelet packets. Voice activity detection (VAD) is used to further distinguish speech from noise and help to adaptively remove noise components from color noise eruptive noisy speech
while perceptual criteria is also taken into account. Experimental results and objective quality measurement test results validate the proposed speech enhancement system and illustrate the benefit of the proposed wavelet domain MMSE filtering as an excellent speech enhancement method to provide sufficient noise reduction and good intelligibility and perceptual quality
without causing considerable signal distortion and musical background noise method. 2010 IEEE.
Real-time motive vehicle detection with adaptive background updating model and HSV colour space (EI CONFERENCE)
会议论文
OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
Rong-Hui Z.
;
Bai Y.
;
Hong-guang J.
;
Chen T.
收藏
  |  
浏览/下载:67/0
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提交时间:2013/03/25
In the transportation monitor system
we set up the area of interest (AOI) of the vehicle model and adjust the size of AOI dynamically in order to track vehicle accurately. The results of experiment show that
motive vehicle detection by adopting digital image is one of key technologies. To detect motive vehicle accurately
the arithmetic proposed in the paper can suppress shadow availably
we establish an adaptive background updating model firstly. Noise is suppressed by using modality filter
detect motive vehicle accurately and satisfy real-time motive vehicle tracking. 2009 SPIE.
and we obtain binary image by using maximum entropy to choose dynamic adaptive threshold. Based on positive information of shadow and aspect feature of motive vehicle
we adopt HSV colour space and double threshold to solve the problem of vehicle shadow. According to prediction result of Kalman filtering