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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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长春光学精密机械与物... [7]
地理科学与资源研究所 [1]
软件研究所 [1]
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OAI收割 [9]
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会议论文 [7]
SCI/SSCI论文 [1]
期刊论文 [1]
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2012 [1]
2011 [1]
2010 [3]
2008 [1]
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Features extraction and matching of teeth image based on the SIFT algorithm (EI CONFERENCE)
会议论文
OAI收割
2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012, July 27, 2012 - July 29, 2012, Shenyang, China
作者:
Wang X.
;
Wang X.
;
Wang X.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
Using of SIFT algorithm in the image of teeth model
can detect the features of the teeth image effectively. In this approach
first
search over all scales and image locations by using a difference-of-Gaussian function to identify potential interest points that are invariant to scale and orientation. Second
select keypoints based on measures of their stability and a detailed model is fit to determine location and scale at each candidate location. Third
assign one or more orientations to each keypoint location based on local image gradient directions. Last
measure the local image gradients at the selected scale in the region around each keypoint. And then use the KNN algorithm to match the features. Through lots of experiments and comparing with other feature extraction methods
this method can detect the features of the teeth model effectively
and offer some available parameters for 3D reconstruction of the teeth model. the authors.
Neural network based online traffic signal controller design with reinforcement training (EI CONFERENCE)
会议论文
OAI收割
14th IEEE International Intelligent Transportation Systems Conference, ITSC 2011, October 5, 2011 - October 7, 2011, Washington, DC, United states
Dai Y.
;
Hu J.
;
Zhao D.
;
Zhu F.
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2013/03/25
Traffic congestion leads to problems like delays
decreasing flow rate
and higher fuel consumption. Consequently
keeping traffic moving as efficiently as possible is not only important to economy but also important to environment. Traffic system is a large complex nonlinear stochastic system. Traditional mathematical methods have some limitations when they are applied in traffic control. Thus
computational intelligence (CI) technologies gain more and more attentions. Neural Networks (NNs) is a well developed CI technology with lots of promising applications in traffic signal control (TSC). In this paper
a neural network (NN) based signal controller is designed to control the traffic lights in an urban traffic road network. Scenarios of simulation are conducted under a microscopic traffic simulation software. Several criterions are collected. Results demonstrate that through online reinforcement training the controllers obtain better control effects than the widely used pre-time and actuated methods under various traffic conditions. 2011 IEEE.
The corner detector of teeth image based on the improved SUSAN algorithm (EI CONFERENCE)
会议论文
OAI收割
3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010, October 16, 2010 - October 18, 2010, Yantai, China
作者:
Yang L.
;
Yang L.
;
Wang X.
;
Wang X.
;
Wang X.
收藏
  |  
浏览/下载:24/0
  |  
提交时间:2013/03/25
In order to detect the corners of the teeth image
secondly
last we detected the corners of the image through the improved SUSAN corner detector algorithm. Through lots of experiments and comparing with other corner detector methods
which were acquired by oral cavity endoscope
we segmented the image by the threshold based on the gray value of the image
this method can detect the corners of the teeth image effectively
in this paper
which can offer some available parameters for the 3D reconstruction of the teeth. 2010 IEEE.
we used the improved SUSAN corner detector algorithm. In this method
firstly
we removed the noise of the image by the morphology open operation and median filtering
The research of corner detector of teeth image based on the curvature scale space corner algorithm (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
作者:
Yang L.
;
Wang X.
;
Wang X.
;
Wang X.
;
Yang L.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
In order to detect the corners of the teeth image
secondly
thirdly
last
this method can detects the corners of the teeth image effectively
which were acquired by oral cavity endoscope
we segmented the image by the threshold based on the gray value of the image
we detected the edge of the teeth image by the Canny edge detector
we detected the corners by the adaptive threshold curvature scale corner detector. Through lots of experiments and we compare this method to other corner detector methods
which offers some available parameters for the 3D reconstruction of the teeth. 2010 IEEE.
in this paper
we used the CSS algorithm. In this method
firstly
we removed the noise of the image by the morphology open operation and median filtering
The implementation of parachute jump commanding and simulation training system (EI CONFERENCE)
会议论文
OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Li Y.
;
Cui S.
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2013/03/25
In order to improve the method of training the commander
secondly
thirdly
Finally
the aerial instructor
we adopted Vega to develop the aerial instructor federate with the models we build with Creator on MFC at Visual C++6.0 platform
we implement the commander federate
we interlink the federate that we implemented above with RTI
back parachute commander
the guarantee unit federate
realize a cooperated parachute jump training system. Through lots of experiments and we compare the training system experiment result with the computes data
the guarantee unit and the aerial broadcaster
the back parachute commander federate and the aerial broadcaster federate on MFC at VC++6.0
we use the compare result to direct the trainee. This system makes the parachute jump command training more effective
in this paper
more safety
we used Vega
shorten training cycle
Creator
lower costs and weather protected. 2010 IEEE.
and RTI implement the Parachute Jump Commanding And Simulation System to simulate the parachute jump commanding process. In this system
firstly
we used Creator build the 3D models that we need in the system
cut*空间的拓扑性质
期刊论文
OAI收割
数学物理学报, 2008, 卷号: 28, 期号: 3, 页码: 472-479
彭良雪
;
黄桂芳
收藏
  |  
浏览/下载:43/1
  |  
提交时间:2011/06/10
cut空间
cut*空间
LOTS
Khalimsky直线
连通空间
紧空间
覆盖性
点连通
不连通
不可约
概念
Influence of lot size and shape on redevelopment projects
SCI/SSCI论文
OAI收割
2007
Gao X. L.
;
Asami Y.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2012/06/08
planning policy
redevelopment
hedonic
externality
lot size
lot
shape
residential lots
environment
markets
areas
A deep-space trail forecast method based on the enlargement of field of view (EI CONFERENCE)
会议论文
OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
Han Q.
;
Yao Z.
;
Zhu M.
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2013/03/25
During the procedure of target tracing
lots of stars will cross the field of view. These stars will disturb the procedure and
the precision of system will be degraded. At the same time
because the optical surveillance system is limited by environment
the targets are often covered by clouds. The above situations will seriously degrade the system's robustness
and once the target is disappeared
the traditional system can't track the target again. Traditional forecast methods merely use coder information
so the precision is low. In order to upgrade the precision
we combine the coder information and the missdistance to forecast the next frame target position. The method is based on field range enlargement. Proved by practical experiments
this method can effectively improve the robustness of the target tracking system. 2006 IEEE.
Holographic polymer Bragg gratings for dense wavelength division multiplexing at 1550nm (EI CONFERENCE)
会议论文
OAI收割
Holography, Diffractive Optics, and Applications II, November 8, 2004 - November 11, 2004, Beijing, China
作者:
Wang W.
;
Wang W.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
Bragg grating has lots of use in many optical field. Especially
in dense wavelength division multiplexing system and optical filters
and so on. Holographic Bragg grating with 1800 line/mm is fabricated in this experiment. Performances of holographic Bragg gratings are measured in our lab. Results show that this holographic Bragg grating can resolve 0.26nm fine line spectrum. Diffraction efficiency of Bragg grating can get 76% in 1.55m wavelength. Results also show that this kind of holographic Bragg grating may use in DWDM device and can produce fine narrow width spectra.