中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
自动化研究所 [3]
长春光学精密机械与物... [2]
采集方式
OAI收割 [5]
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期刊论文 [3]
会议论文 [2]
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2011 [2]
2010 [2]
2002 [1]
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Adaptive pixon represented segmentation (APRS) for 3D MR brain images based on mean shift and Markov random fields
期刊论文
OAI收割
PATTERN RECOGNITION LETTERS, 2011, 卷号: 32, 期号: 7, 页码: 1036-1043
作者:
Lin, Lei
;
Garcia-Lorenzo, Daniel
;
Li, Chong
;
Jiang, Tianzi
;
Barillot, Christian
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浏览/下载:35/0
  |  
提交时间:2015/08/12
MRI segmentation
Markov random field
Adaptive mean shift
Pixon-representation
EM algorithm
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.
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浏览/下载:63/0
  |  
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).
Adaptive pyramid mean shift for global real-time visual tracking
期刊论文
OAI收割
IMAGE AND VISION COMPUTING, 2010, 卷号: 28, 期号: 3, 页码: 424-437
作者:
Li, Shu-Xiao
;
Chang, Hong-Xing
;
Zhu, Cheng-Fei
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浏览/下载:24/0
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提交时间:2015/08/12
Global visual tracking
Fast mean shift
Adaptive level
Kernel-based tracking
Tracking and pointing subsystem
Adaptive deformation estimation of moving target by weight image analysis (EI CONFERENCE)
会议论文
OAI收割
2010 2nd International Conference on Future Computer and Communication, ICFCC 2010, May 21, 2010 - May 24, 2010, Wuhan, China
Bai X.-G.
;
Dai M.
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浏览/下载:35/0
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提交时间:2013/03/25
An algorithm based on weight image analysis is proposed for adaptive deformation estimation of moving target in mean-shift tracking method. At the first
we get the weight image from the target candidate region. Then
we analyze the differences between the object and background. According to that
the area estimation of the target can be converted into the image segmentation task. To realize the adaptive segmentation and estimation
we define the threshold as the maximum variance between object and background. Combining the estimated area and covariance matrix
we can estimate the width
height and orientation of the object. The experimental results on three representative video sequences validate its robustness to the deformable estimation of the targets. 2010 IEEE.
Head tracking using shapes and adaptive color histograms
期刊论文
OAI收割
JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY, 2002, 卷号: 17, 期号: 6, 页码: 859-864
作者:
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浏览/下载:23/0
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提交时间:2015/11/08
adaptive color histogram
mean shift
head tracking