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	Study on the methods of calibrating spectral line position of interference imaging spectrometer 期刊论文 OAI收割 acta physica sinica, 2016, 卷号: 65, 期号: 8 作者: Wei Yu-Tong; Liu Shang-Kuo; Yan Ting-Yu; Li Qi-Wei 收藏 \| 浏览/下载：19/0 \| 提交时间：2016/10/10 spectral line position calibration correction of principle data processing revision by line
	LED display image correction based on computer simulation (EI CONFERENCE) 会议论文 OAI收割 2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China Zheng X.-F.; Chang F. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 For the purposes of correcting the LED display image a method based on computer simulation is proposed. First the development of the LED display panel is introduced. Second analyze the causes of the problem which image in LED display panel has serious high nonuniformity and introduce the existed correction techniques which are used to reduce the nonuniformity of LED display image. Simultaneously point out the ground for shortcomings of these techniques. Third describe the principle of correction method based on computer simulation detail from two steps which are the luminous collection and luminous copulation. Forth describe the realization steps of this method in accordance with the third step. Finally this method is supplied in a LED display panel whose resolution is 640480. Experimental results show that this method is able to reduce the non-uniformity of images from 11.06% to 0.98%. (2012) Trans Tech Publications Switzerland.
	Transitional compensation algorithm for correcting non-uniformity of LED display image (EI CONFERENCE) 会议论文 OAI收割 2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China Su W.-x.; Chen Y.-s. 收藏 \| 浏览/下载：40/0 \| 提交时间：2013/03/25 In order to solve the problem of high non-uniformity of LED display images which is caused by the edges of LED display panel during module splicing transitional compensation algorithm is proposed by improving the existed correction technique named the correction technique based on CCD. First introduce the three development stages of the LED display panel. Then the realization progress of the transitional compensation algorithm is described in detail after elaborating the principle of transitional compensation. Finally the algorithm is emplaned in a LED video control system to control the LED display panel whose display area is 1280960 and which is spliced by 3020 LED modules whose size are 6432. Experimental results show that this algorithm is able to reduce non-uniformity of LED display images from 29.3% before correcting to 0.95%. (2012) Trans Tech Publications Switzerland.
	Improved algorithm of LED display image based on composed correction (EI CONFERENCE) 会议论文 OAI收割 International Conference on Advances in Computer Science, Environment, Ecoinformatics, and Education, CSEE 2011, August 21, 2011 - August 22, 2011, Wuhan, China Song X.-J.; Ma X.-Q.; Liu W.-Y.; Zheng X.-F. 收藏 \| 浏览/下载：18/0 \| 提交时间：2013/03/25 In order to enhance the display result of the LED display image an improved algorithm of LED display image based on composed correction is proposed. Firstly the correction principle and the development status of the current correction technologies of the LED display image is introduced and the two main correction technologies are analyzed. Secondly the theory of composed correction is proposed by constructing a mathematical model. Thirdly this algorithm is achieved in VHDL which is one of hardware description language and verified in an experimental platform. Experimental results show that this algorithm is able to enhance the display result of the LED display image significantly. 2011 Springer-Verlag Berlin Heidelberg.
	Gray level correction algorithm of LED display panel based on least squares approximation (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: Sun Z.-Y. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 Aiming at the problem that the linear characteristic of LED display panel is not compatible with the non-linear characteristic of image data this leads to appear the large deviation during grayscale rendition the gray level correction algorithm based on least squares approximation is provided. First the necessity of gray level correction is analyzed. Then the gray level correction algorithm model is constructed according to the principle of latest squares approximation. Next realization steps are described in accordance with this constructed algorithm model. Finally this algorithm is implemented in a LED display panel whose resolution is 128128. Experimental results show that this algorithm is able to reduce the deviation obviously during grayscale rendition and the problem of gray level deformation can be resolved perfectly because the linear relation between image data after correcting and gray level is good which satisfies the linear characteristic of LED display panel. 2010 IEEE.
	Study and calibration of azimuth effect in multi-position strap-down north seeking system (EI CONFERENCE) 会议论文 OAI收割 7th World Congress on Intelligent Control and Automation, WCICA'08, June 25, 2008 - June 27, 2008, Chongqing, China 作者: Wang Z.; Zhao J.; Wang Z. 收藏 \| 浏览/下载：11/0 \| 提交时间：2013/03/25 In order to reduce the influence of azimuth effect in multi-position strap-down north seeking system its cause of formation is studied based on the precession principle of the dynamically tuned gyro. A detecting system composed by true north prism two Leica theodolites and benchmark prism fixed in the strap-down north seeking system was designed to calibrate the azimuth effect. By two steps many measurements are gone on in every position to eliminate the random error. According to the homologous between the error and the position a sinusoid is made a fit as compensate curve after the error of twelve positions is measured. Then the azimuth effect of the arbitrary position can be corrected by the curve. The experiment result shows that the seeking north standard deviation is only 11.77 after compensation which is considerably less than the 87.75 without correction. 2008 IEEE.
	Fast determination of total ginsenosides content in Ginseng powder by near infrared reflectance spectroscopy (EI CONFERENCE) 会议论文 OAI收割 ICO20: Biomedical Optics, August 21, 2005 - August 26, 2005, Changchun, China 作者: Chen X.-D.; Chen X.-D. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 Near infrared (NIR) reflectance spectroscopy was used to develop a fast determination method for total ginsenosides in Ginseng (Panax Ginseng) powder. The spectra were analyzed with multiplicative signal correction (MSC) correlation method. The best correlative spectra region with the total ginsenosides content was 1660 nm1880 nm and 2230nm-2380 nm. The NIR calibration models of ginsenosides were built with multiple linear regression (MLR) principle component regression (PCR) and partial least squares (PLS) regression respectively. The results showed that the calibration model built with PLS combined with MSC and the optimal spectrum region was the best one. The correlation coefficient and the root mean square error of correction validation (RMSEC) of the best calibration model were 0.98 and 0.15% respectively. The optimal spectrum region for calibration was 1204nm-2014nm. The result suggested that using NIR to rapidly determinate the total ginsenosides content in ginseng powder were feasible.