中国科学院机构知识库网格系统: 检索

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	Spatial pyramidal cross correlation for particle image velocimetry 期刊论文 OAI收割 SCIENCE CHINA-TECHNOLOGICAL SCIENCES, 2018, 卷号: 61, 期号: 6, 页码: 867-878 作者: Wang HP; Wu P; Gao Q; Wang JJ; Wang JJ 收藏 \| 浏览/下载：27/0 \| 提交时间：2018/07/17 Particle Image Velocimetry (Piv) Cross Correlation Spatial Resolution Moving Average
	Temperature signals in tree-ring width and divergent growth of Korean pine response to recent climate warming in northeast Asia 期刊论文 OAI收割 TREES-STRUCTURE AND FUNCTION, 2017, 卷号: 31, 期号: 2, 页码: 415-427 作者: Zhang, Yuandong; Wang, Xiaochun; Zhang, Minhua; Ji, Ying; Li, Zongshan \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2018/07/20 Global Warming Moving Correlation Pinus Koraiensis Spatio Temporal Variations Tree Rings
	Global nitrogen and phosphorus fertilizer use for agriculture production in the past half century: shifted hot spots and nutrient imbalance 期刊论文 OAI收割 EARTH SYSTEM SCIENCE DATA, 2017, 卷号: 9, 期号: 1, 页码: 181-192 作者: Lu, Chaoqun; Tian, Hanqin \| 收藏 \| 浏览/下载：31/0 \| 提交时间：2018/07/20 Global Warming Moving Correlation Pinus Koraiensis Spatio Temporal Variations Tree Rings
	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 \| 浏览/下载：24/0 \| 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 \| 浏览/下载：24/0 \| 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.
	A real-time two-dimensional correlation speed measurement based on image (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: Yu L. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 In order to implement two-dimensional moving object's non-contact and real-time speed measurement in this paper wc proposed a new method which was based on the characteristic of FPGA and a real-time two-dimensional correlation speed measurement was proposed on image processing using high speed CMOS shown in figure 1. Experimental installation was shown in figure 2 a cardboard with images which was fixed in electric control movement device was moving to simulate moving object the CMOS image sensor gathered image signals of the cardboard and the image signals was output to FPGA after a serials pretreatment such as binaryzation etc. Logical operation insteaded mathematical operation on FPGA to implement two frames image's cross-correlation operations as the formula (10) in this paper and finally calculate the two-dimensional velocity. Through experiment result of table 1 we drawn an conclusion the accurarcy of the method in this paper was less than 1 pixel and the method can be used at a certain speed ranges of two-dimensional real-time speed measurement. 2010 IEEE.
	Calibration of the solar radio spectrometer 期刊论文 OAI收割 SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2009, 卷号: 52, 期号: 11, 页码: 1760-1764 作者: Tan ChengMing; Yan YiHua; Tan BaoLin; Xu GuiRong 收藏 \| 浏览/下载：21/0 \| 提交时间：2017/04/11 solar radio spectrometer calibration coefficient moving-average air temperature correlation