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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地理科学与资源研究所 [2]
长春光学精密机械与物... [2]
力学研究所 [1]
采集方式
OAI收割 [5]
内容类型
期刊论文 [3]
会议论文 [2]
发表日期
2025 [1]
2020 [2]
2006 [2]
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Unifying linear proportionality between real contact area and load in rough surface contact
期刊论文
OAI收割
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2025, 卷号: 196, 页码: 18
作者:
Meng, Qinghua
;
Song HX(宋恒旭)
;
Zhou, Yunong
;
Liu XM(刘小明)
;
Shi, Xinghua
  |  
收藏
  |  
浏览/下载:10/0
  |  
提交时间:2025/01/13
Rough surface
Elastic contact
Contact model
Mean absolute slope
Shape coefficient
Two-Phase Multivariate Time Series Clustering to Classify Urban Rail Transit Stations
期刊论文
OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 167998-168007
作者:
Zhang, Liying
;
Pei, Tao
;
Meng, Bin
;
Lian, Yuanfeng
;
Jin, Zhou
  |  
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2021/03/16
Time series analysis
Correlation
Shape
Correlation coefficient
Discrete wavelet transforms
Clustering algorithms
Multivariate time series
cluster
maximum overlap discrete wavelet transform
symbolic aggregate approximation (SAX)
urban rail transit stations
Two-Phase Multivariate Time Series Clustering to Classify Urban Rail Transit Stations
期刊论文
OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 167998-168007
作者:
Zhang, Liying
;
Pei, Tao
;
Meng, Bin
;
Lian, Yuanfeng
;
Jin, Zhou
  |  
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2021/03/16
Time series analysis
Correlation
Shape
Correlation coefficient
Discrete wavelet transforms
Clustering algorithms
Multivariate time series
cluster
maximum overlap discrete wavelet transform
symbolic aggregate approximation (SAX)
urban rail transit stations
A novel starting-point-independent wavelet coefficient shape matching (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Hu S.
;
Zhu M.
;
Wu C.
;
Song H.-J.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
In many computer vision tasks
in order to improve the accuracy and robustness to the noise
wavelet analysis is preferred for the natural multi-resolution property. However
the wavelet representation suffers from the dependency of the starting point of the sampled contour. For overcoming the problem that the wavelet representation depends on the starting point of the sampled contour
the Zernike moments are introduced
and a novel Starting-Point-lndependent wavelet coefficient shape matching algorithm is presented. The proposed matching algorithm firstly gains the object contours
and give the translation and scale invariant object shape representation. The object shape representation is converted to the dyadic wavelet representation by the wavelet transform. And then calculate the Zernike moments of wavelet representation in different scales. With respect to property of rotation invariant of Zernike moments
consider the Zernike moments as the feature vector to calculate the dissimilarity between the object and template image
which overcoming the problem of dependency of starting point. The experimental results have proved the proposed algorithm to be efficient
precise
and robust.
Intersectant multi-target serial number fuzzy match by multi-parameters (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Wang Y.-J.
收藏
  |  
浏览/下载:161/0
  |  
提交时间:2013/03/25
In order to match the intersectant targets' tab when these objects separate
a kind of method that makes use of fuzzy multi-parameter to match targets is proposed. Multi-parameters include the forecasted position after targets separate
target speed
target size and geometry shape
and different parameter corresponds to different influence coefficient
evaluate the integrated matching coefficient that every observation target corresponds to forecasted target
and the corresponding relationship that matching coefficient is the biggest is the best matching result. In order to locate the position and speed of forecasted target
a new method of track forecast is proposed
firstly
Hough transform is used to the object's track before objects intersect
by this
the object's positions that the warp between forecasted location and observation location is large enough is eliminated
then least square method is used for track forecast by the remainder valid positions
and get hold of the forecasted position when objects separate. The experiment results show: when tracking the bulky objects which intersect and separate
the right identification probability of traditional least square method is 87.5%
and the right identification probability of fuzzy match by multi-parameters can attain 96%
the reliability improves in evidence.