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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... [2]
成都山地灾害与环境研... [1]
西安光学精密机械研究... [1]
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OAI收割 [4]
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会议论文 [3]
期刊论文 [1]
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2019 [1]
2012 [1]
2010 [1]
2006 [1]
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INTER-CALIBRATION OF NIGHTTIME LIGHT DATA BETWEEN DMSP/OLS AND NPP/VIIRS IN THE ECONOMIC CORRIDORS OF BELT AND ROAD INITIATIVE
会议论文
OAI收割
Yokohama, JUL 28-AUG 02, 2019
作者:
Bian Jinhu
;
Li Ainong
;
Lei Guangbin
;
Zhang Zhengjian
;
Nan Xi
  |  
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2020/08/20
DMSP/OLS
NPP/VIIRS
nighttime light data
invariant target
inter-calibration
OBOR
Target classification using SIFT sequence scale invariants
期刊论文
OAI收割
journal of systems engineering and electronics, 2012, 卷号: 23, 期号: 5, 页码: 633-639
作者:
Zhu, Xufeng
;
Ma, Caiwen
;
Liu, Bo
;
Cao, Xiaoqian
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/07/08
target classification
scale invariant feature transform descriptors
sequence scale
support vector machine
Electro-optical imaging system identification using pseudo-random binary pattern (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
Le Y.
;
Jian W.
;
Jianzhong Z.
;
Qiang S.
;
Jianzhuo L.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
A method using pseudo-random binary pattern is developed for electro-optical imaging system identification. The imaging system is taken as a stable
linear
time-invariant
and causal filter
and its transfer function is measured through the pseudo-random binary sequence impulse responses identification. A digital mirror device (DMD) light projector is developed as the target generator
and wavelet thresholding is used to denoise the captured image. Pre-filtering spectral estimation algorithm with adaptive parameter selection is also proposed for the identification process
overcoming the challenge brought by the size limit derived from the optical isoplantic region. Simulations and experiments are presented to show the effectiveness of the proposed method.0-64. 2010 IEEE.
Target track system design based on circular projection (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
Song H.-J.
;
Zhu M.
;
Hu S.
;
Shen M.-L.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
Template matching is the process of searching the present and the location of a reference image or an object in a scene image. Template matching is a classical problem in a scene analysis: given a reference image of an object
decide whether that object exists in a scene image under analysis
and find its location if it does. The template matching process involves cross-correlating the template with the scene image and computing a measure of similarity between them to determine the displacement. The conventional matching method used the spatial cross-correlation process which is computationally expensive. Some algorithms are proposed for this speed problem
such as pyramid algorithm
but it still can't reach the real-time for bigger model image. Moreover
the cross-correlation algorithm can't be effective when the object in the image is rotated. Therefore
the conventional algorithms can't be used for practical purpose. In this paper
an algorithm for a rotation invariant template matching method based on different value circular projection target tracking algorithm is proposed. This algorithm projects the model image as circular and gets the radius and the sum of the same radius pixel value. The sum of the same radius pixel value is invariable for the same image and the any rotated angle image. Therefore
this algorithm has the rotation invariant property. In order to improve the matching speed and get the illumination invariance
the different value method is combined with circular projection algorithm. This method computes the different value between model image radius pixel sum and the scene image radius pixel sum so that it gets the matching result. The pyramid algorithm also is been applied in order to improve the matching speed. The high speed hardware system also is been design in order to meet the real time requirement of target tracking system. The results show that this system has the good rotate invariance and real-time property.