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长春光学精密机械与物... [4]
金属研究所 [3]
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Effect of secondary orientation on room temperature tensile behaviors of Ni-base single crystal superalloys
期刊论文
OAI收割
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2016, 卷号: 659, 页码: 130-142
Zhou, Z. J.
;
Wang, L.
;
Wang, D.
;
Lou, L. H.
;
Zhang, J.
收藏
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浏览/下载:20/0
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提交时间:2016/08/22
Ni-base single crystal superalloy
Secondary orientation
Holes
Tensile test
Digital image correlation technique
In-situ scanning electron microscopy
Antenna Pattern Measurement of the Large-Size Radio Telescope by Correlation Techniques and GNSS
期刊论文
OAI收割
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2016, 卷号: 15, 页码: 1136-1139
作者:
Zhuang, Wang
;
Da, Huang
;
Wang, Meng-Nan
;
Zhu, Cheng
;
Dong L(董亮)
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浏览/下载:39/0
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提交时间:2016/08/08
Antenna pattern measurement
auxiliary antenna
correlation technique
GNSS
Effect of holes on the room temperature tensile behaviors of thin wall specimens with (210) side surface of Ni-base single crystal superalloy
期刊论文
OAI收割
JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 卷号: 647, 页码: 802-808
Zhou, Z. J.
;
Liu, T.
;
Pu, S.
;
Xu, H.
;
Wang, L.
;
Lou, L. H.
收藏
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浏览/下载:17/0
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提交时间:2016/04/21
High-temperature alloys
Mechanical properties
Microstructure
Holes
Digital image correlation (DIC) technique
In-situ scanning electron microscopy
Effect of skew angle of holes on the tensile behavior of a Ni-base single crystal superalloy
期刊论文
OAI收割
Journal of Alloys and Compounds, 2015, 卷号: 628, 页码: 158-163
Z. J.
;
Wang Zhou, L.
;
Wen, J. L.
;
Lou, L. H.
;
Zhang, J.
收藏
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浏览/下载:21/0
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提交时间:2015/05/08
High-temperature alloys
Mechanical properties
Microstructure
Holes
Skew angles
Digital image correlation (DIC) technique
nickel-based superalloy
plastic anisotropy
orientations
strength
fatigue
Improved method of target detection on optoelectronic hybrid joint transform correlator in cluttered scences (EI CONFERENCE)
会议论文
OAI收割
2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China
作者:
Yang L.
;
Yang L.
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浏览/下载:22/0
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提交时间:2013/03/25
A classical joint transform correlator (JTC) usually yields large correlation sidelobes as well as a large correlation peak width
strong zero-order peak
and low diffraction efficiency
which make the detection ability of JTC lower. To overcome these difficulties
firstly
a joint power spectrum (JPS) subtraction technique in Fourier plane was proposed
where reference image power spectrum and object image power spectrum are subtracted from the JPS before inverse Fourier-transform operation
it is obvious that the modified JPS removes the zero-order term. Secondly
a fringe-adjusted filter (FAF) was presented to suppress sidelobes and noises. The modified JPS is multiplied by a FAF before the inverse Fourier-transform operation to obtain the cross-correlation peak. Computer simulations demonstrated the improved method can obviously remove zero-order diffraction and effectively suppress the sidelobes and noises compared with classic JTC
and then improve the detection ability for JTC. Experimental results presented the sharp correlation peak and also confirmed the method effectiveness. (2012) Trans Tech Publications
Switzerland.
Image mosaic technique based on the information of edge (EI CONFERENCE)
会议论文
OAI收割
2012 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, July 31, 2012 - August 2, 2012, Guilin, Guangxi, China
作者:
Wang Y.-Q.
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浏览/下载:35/0
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提交时间:2013/03/25
Image mosaic is an important branch in the field of image processing. This paper designs and realizes an image mosaic technique based on the information of edge. The technology is suitable for engineering application. First of all
two images of the adjoining frames are processed by convolution operation
get the edge images. And then we cut edge image into pieces and compute their spatial frequency. According to the value of the spatial frequency select reasonable registration model group. We compute correlation strength and the value of movement offset which are the model group and the current frame edge image. We can complete image mosaic by them. We use video sequence which of the resolution is 1024 * 768 do the experiment. The results show that the method has good effect and strong adaptability. Algorithm is high efficiency which running time is 24 ms. It is suitable for real-time processing requirements of the application. This method is an effective mosaic technique which is suitable for engineering application. 2012 IEEE.
Characteristics of near surface turbulent parameters along the traverse route from Zhongshan Station to Dome A, East Antarctica
期刊论文
iSwitch采集
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 卷号: 54, 期号: 8, 页码: 1960-1971
作者:
Ma Yong-Feng
;
Bian Lin-Gen
;
Xiao Cun-De
;
Dou Ting-Feng
收藏
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浏览/下载:34/0
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提交时间:2019/10/08
Antarctica ice sheet
Turbulent fluxes
Turbulent parameters
Eddy-correlation technique
Aerodynamics method
A new accurate and fast algorithm of sub-pixel image registration (EI CONFERENCE)
会议论文
OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
作者:
He B.
收藏
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浏览/下载:28/0
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提交时间:2013/03/25
In terms of large field view and multi-channel TDICCD remote sensing images
previous interpolation methods and curve fitting methods are not able to achieve the high accuracy and fast registration
and their noise immunity and robustness is not high. For that
this paper presents a more accurate and faster method
iterative pixel interpolation and surface fitting method. Firstly
the method uses the some overlapping pixels between multi-channel images. Secondly
the proposed technique
which is based on the maximization of the correlation coefficient function
combines an efficient pixel-moving interpolation scheme with surface fitting
which makes use of accurate interpolation calculation and fast surface fitting in the iterative process. Finally
the accuracy and speed of the algorithm is evaluated by sub-pixel registration of multi-channel images and comparison with other sorts of efficient methods. The experiment results show that the accuracy of the method reaches 0.01 pixels and it is 3 times faster than the interpolation method. In the registration of large field view and multi-channel TDICCD images
the method is accurate and fast
with greatly high stability
noise immunity and robustness. 2010 IEEE.
A new research of sub-pixel level accuracy of TDICCD remote sensing image registration (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:
He B.
收藏
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浏览/下载:24/0
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提交时间:2013/03/25
In the field of remote sensing imaging
TDICCD remote sensing images have a lot of their own characteristics
such as high-resolution
large amount of information
less overlapping parts of pixels
additional image blurring etc. Therefore
there exist many difficulties
especially in terms of high-accuracy registration of pairs of images. For that
this paper presents two new pixel interpolation method for sub-pixel level registering images that allows for scaling
translation and rotation. The proposed technique
which is based on the maximization of the correlation coefficient function
combines an efficient pixel-moving interpolation scheme with surface fitting
which greatly reduces the overall computational cost. The accuracy of the algorithm is evaluated by calculating correlation coefficient of couples of points belonging to images transformed with preset factors and also comparing it to other sorts of methods. The experiment results show that the accuracy of registration reaches 0.01 pixels. 2010 IEEE.
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