Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309035
Hongxi Zhang, Zhenduo Guo, Zegang Qi, Jiuge Wang
In this paper, we proposed a defect detection algorithm based on Discrete Fourier Transform (DFT) and optimal threshold method, mainly aiming at detecting bubble, stone, and crack of glass. Firstly, the test images are pre-processed using median filter. Then the defect region is highlighted by spectral residual approach in Discrete Fourier Transform (DFT). Finally, the optimal threshold, using which the defect region is segmented, is determined by multiple iterations. Experimental results demonstrate the proposed detection algorithm can detect and localize the defect region with high accuracy and better practicability.
{"title":"Research of glass defects detection based on DFT and optimal threshold method","authors":"Hongxi Zhang, Zhenduo Guo, Zegang Qi, Jiuge Wang","doi":"10.1109/CSIP.2012.6309035","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309035","url":null,"abstract":"In this paper, we proposed a defect detection algorithm based on Discrete Fourier Transform (DFT) and optimal threshold method, mainly aiming at detecting bubble, stone, and crack of glass. Firstly, the test images are pre-processed using median filter. Then the defect region is highlighted by spectral residual approach in Discrete Fourier Transform (DFT). Finally, the optimal threshold, using which the defect region is segmented, is determined by multiple iterations. Experimental results demonstrate the proposed detection algorithm can detect and localize the defect region with high accuracy and better practicability.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128495370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6308911
Si-Nan Zhang, W. Hou, Jun Yang, Xiang Ding, Yi-ling Hou, Zheng-song Peng
To explore the structure characteristic of rpL13 gene of Ailuropoda melanoleuca, RT-PCR and PCR strategy were employed to isolate cDNA and genomic sequence of this gene from A. melanoleuca respectively, followed by sequencing and analyzing preliminarily. The results indicated that the length of cDNA fragment cloned was 660 bp, containing an open reading frame of 636 bp, encoding 211 amino acids of deduced protein with an estimated molecular weight of 24.29 KD and PI of 12.17. The length of the genomic sequence is 1831 bp, with five exons and four introns. Alignment analysis indicated that rpL13 is highly similarity with the reported species both at the level of DNA and protein. The predicted protein possessed 3 different patterns of functional sites. The results presented here will enrich the rpL13 gene database.
{"title":"Cloning and sequence analysis of ribosomal protein L13 gene (rpL13) from Ailuropoda melanoleuca","authors":"Si-Nan Zhang, W. Hou, Jun Yang, Xiang Ding, Yi-ling Hou, Zheng-song Peng","doi":"10.1109/CSIP.2012.6308911","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6308911","url":null,"abstract":"To explore the structure characteristic of rpL13 gene of Ailuropoda melanoleuca, RT-PCR and PCR strategy were employed to isolate cDNA and genomic sequence of this gene from A. melanoleuca respectively, followed by sequencing and analyzing preliminarily. The results indicated that the length of cDNA fragment cloned was 660 bp, containing an open reading frame of 636 bp, encoding 211 amino acids of deduced protein with an estimated molecular weight of 24.29 KD and PI of 12.17. The length of the genomic sequence is 1831 bp, with five exons and four introns. Alignment analysis indicated that rpL13 is highly similarity with the reported species both at the level of DNA and protein. The predicted protein possessed 3 different patterns of functional sites. The results presented here will enrich the rpL13 gene database.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"171 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131657425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309061
Chen Jing, Zhang Naiqian
Despite of many advantages of OFDM, high PAPR is one of the main problems that prevent OFDM from being used more generally in broadband systems. Many approaches such as clipping and filtering, coding, SLM, PTS, and tone reservation (TR) have been studied to reduce the peak magnitude of OFDM symbols. In these approaches, tone reservation method constructs an additive PAPR reduction signal that uses a small subset of reserved subcarriers. These reserved tones are orthogonal with the data tones and, hence, cause no additional distortion, no side information, and low implementation cost. However, TR schemes with oversample or not affects PAPR reduction performance significantly. TR schemes without oversample would bring peak value up again easily when pass by HPA and then bring out-of-band (OOB) distortion. In this paper, we evaluated proposed TR scheme with oversample in OFDM systems and focused on the effects of oversample technique to our proposed system. The simulation results show that the scheme can provide good performance and fast convergence.
{"title":"Effects of oversample in tone reservation scheme for PAPR reduction in OFDM systems","authors":"Chen Jing, Zhang Naiqian","doi":"10.1109/CSIP.2012.6309061","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309061","url":null,"abstract":"Despite of many advantages of OFDM, high PAPR is one of the main problems that prevent OFDM from being used more generally in broadband systems. Many approaches such as clipping and filtering, coding, SLM, PTS, and tone reservation (TR) have been studied to reduce the peak magnitude of OFDM symbols. In these approaches, tone reservation method constructs an additive PAPR reduction signal that uses a small subset of reserved subcarriers. These reserved tones are orthogonal with the data tones and, hence, cause no additional distortion, no side information, and low implementation cost. However, TR schemes with oversample or not affects PAPR reduction performance significantly. TR schemes without oversample would bring peak value up again easily when pass by HPA and then bring out-of-band (OOB) distortion. In this paper, we evaluated proposed TR scheme with oversample in OFDM systems and focused on the effects of oversample technique to our proposed system. The simulation results show that the scheme can provide good performance and fast convergence.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114061869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6308846
Wei Wei, Xiao-quan Sun, Xiaojun Sun
To intercept off-axis scattering of the pulsed laser beam from a Q-switch Nd:YAG laser in the atmosphere, the characteristic of the scattering signal was investigated theoretically. By simulating the scattering signal with a signal generator, the improvement of SNR and the corresponding operating condition of a correlation element was checked experimentally. The results suggest that the correlation method can improve the off-axis scattering interception.
{"title":"Technical analysis on correlation detection of off-axis scattering of pulsed laser","authors":"Wei Wei, Xiao-quan Sun, Xiaojun Sun","doi":"10.1109/CSIP.2012.6308846","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6308846","url":null,"abstract":"To intercept off-axis scattering of the pulsed laser beam from a Q-switch Nd:YAG laser in the atmosphere, the characteristic of the scattering signal was investigated theoretically. By simulating the scattering signal with a signal generator, the improvement of SNR and the corresponding operating condition of a correlation element was checked experimentally. The results suggest that the correlation method can improve the off-axis scattering interception.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123000153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6308859
Lianghua He, Hongfei Ji, Meng Wan, Shuang Liu
Resting state functional magnetic resonance imaging (rsfMRI) is a relatively new and an powerful method for evaluating regional interactions that occur when a participant is not performing an explicit task. Because of sensitiveness to time delay and length of time courses, respectively, traditional methods of correlation and coherence based on region of interest are not very suitable for rsfMRI. In this paper, we analyzed low frequency property of rsfMRI data. Firstly, we calculated the low frequency of resting-state Blood-Oxygenation-Level-Dependent(BOLD) signal on every voxel using Welch method, based on which we analyzed the statistical distribution cross subjects and voxels. The low frequency feature is proved by a series of experiments to be more robust and consistent comparing with coorelation in time domain and coherency in frequency domain. We found that the property of low frequency statistical distribution is dominant on narrow band, which is around 0.0137HZ.
{"title":"Low frequency analysis of resting-state fMRI","authors":"Lianghua He, Hongfei Ji, Meng Wan, Shuang Liu","doi":"10.1109/CSIP.2012.6308859","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6308859","url":null,"abstract":"Resting state functional magnetic resonance imaging (rsfMRI) is a relatively new and an powerful method for evaluating regional interactions that occur when a participant is not performing an explicit task. Because of sensitiveness to time delay and length of time courses, respectively, traditional methods of correlation and coherence based on region of interest are not very suitable for rsfMRI. In this paper, we analyzed low frequency property of rsfMRI data. Firstly, we calculated the low frequency of resting-state Blood-Oxygenation-Level-Dependent(BOLD) signal on every voxel using Welch method, based on which we analyzed the statistical distribution cross subjects and voxels. The low frequency feature is proved by a series of experiments to be more robust and consistent comparing with coorelation in time domain and coherency in frequency domain. We found that the property of low frequency statistical distribution is dominant on narrow band, which is around 0.0137HZ.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128676672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309054
Yingfei Gao, Hui-jia Tang, Kuipeng Xue
In this paper, we focus on providing users with an effective and efficient way to extract useful information from complex structured XML databases. We propose a new query mechanism to provide users with the ability to refine the ambiguous semantics of the initiative ATP query before execution, thus we can avoid identifying meaningful answers from large amount of irrelevant results returned by existing methods. We implement algorithms for efficient evaluating an ATP query. Rich experimental results show that our method can be used easily and outperform existing query engines significantly.
{"title":"Effectively extracting useful information from complex structured XML databases","authors":"Yingfei Gao, Hui-jia Tang, Kuipeng Xue","doi":"10.1109/CSIP.2012.6309054","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309054","url":null,"abstract":"In this paper, we focus on providing users with an effective and efficient way to extract useful information from complex structured XML databases. We propose a new query mechanism to provide users with the ability to refine the ambiguous semantics of the initiative ATP query before execution, thus we can avoid identifying meaningful answers from large amount of irrelevant results returned by existing methods. We implement algorithms for efficient evaluating an ATP query. Rich experimental results show that our method can be used easily and outperform existing query engines significantly.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115518277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6308839
Tang Huatao, Wu Xinyue
To calculate transfer matrix of the plane non-uniform pure bending beam by transfer matrix method of multibody system quickly and efficiently, the stiffness matrix of the beam was calculated by the finite element method firstly, and then the transfer matrix of the beam was calculated. It was proved by the example that this method is effective and feasible. And it provided a new idea to solve the problem of complex system dynamics by combining finite element method and transfer matrix method of multibody system.
{"title":"Analysis of transfer matrix of non-uniform beam based on finite element method","authors":"Tang Huatao, Wu Xinyue","doi":"10.1109/CSIP.2012.6308839","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6308839","url":null,"abstract":"To calculate transfer matrix of the plane non-uniform pure bending beam by transfer matrix method of multibody system quickly and efficiently, the stiffness matrix of the beam was calculated by the finite element method firstly, and then the transfer matrix of the beam was calculated. It was proved by the example that this method is effective and feasible. And it provided a new idea to solve the problem of complex system dynamics by combining finite element method and transfer matrix method of multibody system.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115618852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309108
Shiping Zhu, Liyun Li
License plate automatic recognition is realized by Matlab in the paper, which is applied in toll payment, guard monitor, et al, and has promising future in the control and management of the traffic. The system can be divided into three modules that are license plate orientation, license plate character segmentation and recognition. In the process, it involves image processing, color dimensional conversion, gray transform, morphologic and so on. Each part is analyzed and discussed directly with corresponding results. The recognition is accurate and clear. At last, the shortage and future direction is given for following research. This project is the course final project of the graduate course of “Image Analysis and Recognition”. Through the training of this project, graduate students can improve their knowledge of image processing, at the same time, they have a better gain in the solving real problem and innovative abilities.
{"title":"The project of license plate recognition system in graduate course research-oriented final project","authors":"Shiping Zhu, Liyun Li","doi":"10.1109/CSIP.2012.6309108","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309108","url":null,"abstract":"License plate automatic recognition is realized by Matlab in the paper, which is applied in toll payment, guard monitor, et al, and has promising future in the control and management of the traffic. The system can be divided into three modules that are license plate orientation, license plate character segmentation and recognition. In the process, it involves image processing, color dimensional conversion, gray transform, morphologic and so on. Each part is analyzed and discussed directly with corresponding results. The recognition is accurate and clear. At last, the shortage and future direction is given for following research. This project is the course final project of the graduate course of “Image Analysis and Recognition”. Through the training of this project, graduate students can improve their knowledge of image processing, at the same time, they have a better gain in the solving real problem and innovative abilities.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115146035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309096
Xiao Sheng, Zhi-min Qi, Ming Hou, Hanjun Yu
Built up the rigid body trajectory model of TV-guided shell, and analyzed the effect of angle-of-attack on guidance precision of TV-guided shell. Simulated trajectory of inertial guidance glide phase in an initial condition based on MATLAB. Get angle-of-attack and the error caused by angle-of-attack. Advance a way of correcting balance angle-of-attack to eliminate error, which provides a theoretical foundation for improving TV-guided Shell guidance precision.
{"title":"Study on influence of angle-of-attack on TV-guided Shell guidance precision in inertial glide phase","authors":"Xiao Sheng, Zhi-min Qi, Ming Hou, Hanjun Yu","doi":"10.1109/CSIP.2012.6309096","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309096","url":null,"abstract":"Built up the rigid body trajectory model of TV-guided shell, and analyzed the effect of angle-of-attack on guidance precision of TV-guided shell. Simulated trajectory of inertial guidance glide phase in an initial condition based on MATLAB. Get angle-of-attack and the error caused by angle-of-attack. Advance a way of correcting balance angle-of-attack to eliminate error, which provides a theoretical foundation for improving TV-guided Shell guidance precision.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114604533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-24DOI: 10.1109/CSIP.2012.6309131
Xiurong Bao
OFDM is the key technology of 4G in the field of mobile communication. In this article basic principle of OFDM is briefly introduced. Then, the influence of CP and different channel estimation on the system performance is emphatically analyzed respectively in Gauss and Rayleigh fading channels in the condition of ideal synchronization. Besides, based on the given system model OFDM system is computer simulated with MATLAB language, and the BER curves of CP and channel estimation are given and compared.
{"title":"Matlab simulation and performance analysis of OFDM system","authors":"Xiurong Bao","doi":"10.1109/CSIP.2012.6309131","DOIUrl":"https://doi.org/10.1109/CSIP.2012.6309131","url":null,"abstract":"OFDM is the key technology of 4G in the field of mobile communication. In this article basic principle of OFDM is briefly introduced. Then, the influence of CP and different channel estimation on the system performance is emphatically analyzed respectively in Gauss and Rayleigh fading channels in the condition of ideal synchronization. Besides, based on the given system model OFDM system is computer simulated with MATLAB language, and the BER curves of CP and channel estimation are given and compared.","PeriodicalId":193335,"journal":{"name":"2012 International Conference on Computer Science and Information Processing (CSIP)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126641007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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