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CAS IR Grid
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长春光学精密机械与物... [7]
数学与系统科学研究院 [2]
大连化学物理研究所 [1]
沈阳自动化研究所 [1]
合肥物质科学研究院 [1]
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OAI收割 [12]
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The Research of EAST Pedestal Structure and Preliminary Application
期刊论文
OAI收割
PLASMA SCIENCE & TECHNOLOGY, 2016, 卷号: 18, 期号: 10, 页码: 967-973
作者:
Wang Tengfei
;
Zang Qing
;
Han Xiaofeng
;
Xiao Shumei
;
Hu Ailan
收藏
|
浏览/下载:27/0
|
提交时间:2017/09/07
Two-line Method
Thomson Scattering
Pedestal Characteristic
Pedestal Models
East
A line mapping based automatic registration algorithm of infrared and visible images
会议论文
OAI收割
5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013
作者:
Ai R(艾锐)
;
Shi ZL(史泽林)
;
Xu DJ(徐德江)
;
Zhang CS(张程硕)
收藏
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浏览/下载:38/0
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提交时间:2013/12/26
There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.
Theories to support method development in comprehensive two-dimensional liquid chromatography - A review
期刊论文
OAI收割
journal of separation science, 2012, 卷号: 35, 期号: 14, 页码: 1697-1711
作者:
Bedani, Filippo
;
Schoenmakers, Peter J.
;
Janssen, Hans-Gerd
收藏
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浏览/下载:31/0
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提交时间:2015/11/12
Degree of orthogonality
First-dimension undersampling
LC LC method development
LC LC optimization
On-line comprehensive two-dimensional liquid chromatography
Rotation and scaling invariant feature lines for image matching (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者:
Wang Y.
;
Wang Y.
;
Wang Y.
;
Wang Y.
;
Wang Y.
收藏
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浏览/下载:30/0
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提交时间:2013/03/25
Image matching has been one of the most fundamental issues computer vision over the decades. In this paper we propose a novel method based on making use of feature lines in order to achieve more robust image matching. The feature lines have the properties of rotation and scaling invariance
coined RIFLT(Rotation invariant feature line transform). Experimental results demonstrate the effectiveness and efficiency of the proposed method. Compare with the famous powerful algorithm Scale Invariant Feature Transform(SIFT)
the proposed method is more insensitive to noise. And for certain sequence of images
which contain clear lines
the proposed method is more efficiency. Using the feature lines obtained by our method
it is possible to matching two scene images with different rotation angles
scale and light distort. 2011 IEEE.
LOS rate reconstruction and application of roll-pitch seeker (EI CONFERENCE)
会议论文
OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
Yang C.
;
Zhang N.
;
Jia H.
收藏
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浏览/下载:22/0
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提交时间:2013/03/25
Frame motion form of roll-pitch seeker is introduced in this paper. There is corresponding relationship between the frame angle of the roll-pitch seeker and the traditional yaw-pitch seeker. The discrepancy of line-of-sight (LOS) rate of the two seekers is caused by the different frame motion forms. LOS rate reconstruction method of roll-pitch seeker is deduced. Compared to the pure proportional navigation guidance law
the true proportional navigation guidance law is more suitable for the roll-pitch seeker missile guidance. 2011 IEEE.
The research of H mixed sensitivity method for line-of-sight stabilization for Carrier-Based theodolite (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
Hua C. L.
;
Bin G. H.
;
Mei Z. S.
收藏
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浏览/下载:17/0
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提交时间:2013/03/25
In view of the requirements of isolating disturbances and stabilizing optical axis of Carrier-Based theodolite
A two-axis stabilizated platform system with the rate gyro was designed
The expressions of line-of-sight add-angle velocity begotten by ship-swaying is introduced
The principles of selection of weighting of fuctions are brought
and adopting H Mixed Sensitivity Method in the velocity Stabilization-loop. 2010 IEEE.
Environment modeling of AS-R robot based on BP Neural Network (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
Xie M.-J.
;
Yu X.-L.
;
Wang Z.-Q.
收藏
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浏览/下载:35/0
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提交时间:2013/03/25
There are some limitations when environment model of AS-R mobile robot is obtained by only using a separate CCD camera or ultrasonic sensor array. The BP neural network is designed to fuse information of the two sensors to obtain the robot's environment model in this paper. The input of BP neural network is the intercept and slope of the edge line obtained CCD camera and ultrasonic sensor arrays
which is processed by through the global coordinates of coordinate transformation. The output of BP network is the fused intercept and slope of the straight edge. Experiment shows that environment model is feasible for the AS-R mobile robot and the environment modeling method has more reliability and accuracy. 2010 IEEE.
Line-of-sight locating algorithm for staring imaging aerial remote sensor (EI CONFERENCE)
会议论文
OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Li Y.
;
Li J.
收藏
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浏览/下载:25/0
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提交时间:2013/03/25
A line-of-sight (LOS) Locating algorithm for staring imaging is presented in this paper. Staring imaging is an imaging mode for aerial remote sensor
which photographs the designated earth-fixed target in muItidirections. Therefore
the details of interesting targets is available. For the target obscured or disguised
its advantage becomes more apparent. This paper proposes the method using two-axis rotation to achieve staring imaging
and establishes the system model and the associated coordinates. Adopting the method of coordinate transformation
the LOS Locating algorithm is constructed
which determines the LOS direction. For the validation of algorithm
Target Geolocation Algorithm is established using Simulink library blocks. Eventually
it proves the feasibility of the LOS Locating algorithm. This article provides a thought of LOS Locating algorithm for staring imaging. The method of coordinate transformation used in this paper can be applied to line-of-sight positioning in other imaging modes. 2010 IEEE.
The study of mapping relation of aeroplane complex motion and image movement and compensation technique (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China
Wei Z.
;
Wang Y.-Y.
;
Xue W.-Q.
;
Dai M.
收藏
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浏览/下载:24/0
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提交时间:2013/03/25
In order to solve the problem of image blurring due to the image motion which results from the aircraft's motion
attitude changes
and the relative motion of the camera and aircraft firstly
we install linear displacement transducer on the four shock absorbers. By analyzing the displacement values
the geometrical relationship between the camera and the aircraft is acquired
then relative motion amount between the object and the aircraft is obtained according to the motion and attitude changes. After that
making use of geometrical relationship
we can calculate the displacement variation of pixels within the camera exposure time. Thereafter
taking consider variable motion and non-linear motion as uniform motion in a straight line at the moment of imaging
then the model of the blurring image can be established according to the displacement variation of pixels within the camera exposure time
and fuzzy point spread function in the two-dimensional movement is built. By using Wiener filtering method with the optimal window
the image blurring is eliminated in aerial imaging system. Practice proved that this method can effectively eliminate the image blurring in the aerial imaging system. 2010 IEEE.
Contrast research on interpolation and subpixel imaging in CCD geometric superresolution reconstruction (EI CONFERENCE)
会议论文
OAI收割
1st Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics, PrimeAsia 2009, November 19, 2009 - November 21, 2009, Shanghai, China
作者:
Xu Y.-S.
;
Yang S.-W.
收藏
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浏览/下载:25/0
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提交时间:2013/03/25
In order to enhance the resolution of Charge Coupled Device (CCD) pixel with the pixel dimension and focal length of optical system unchanged
the problem of CCD geometric superresolution is educed. The problem is discussed in terms of software and hardware. In software
the bicubic interpolation is introduced
while in hardware
the subpixel imaging method is utilized. The subpixel imaging method integrates two uniform linear CCDs staggered by half dimension of pixel in one device. In operation
the line frequency is doubled. At last
the collected data is interweaved to synthesize a high resolution image. The two methods
bicubic interpolation and subpixel imaging
are simulated with Matlab7.0.1. The qualitative and quantitative analyses are given. The simulated results of lanczos and cubic spline interpolation methods are given simultaneously to show the performance of interpolation. The simulation result shows that the result images quality becomes better in both methods
but compared with bicubic interpolation method
the synthesized image PSNR gained from sub-pixel imaging is averagely enhanced by 2.1682dB
while the elapsed time is reduced to be about one forth. The subpixel imaging method could significantly mitigate the image blur introduced by undersample. 2009 IEEE.
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