Bo Huang, Ziru Li, Xusheng Zhang, G. Lin, Zhigang Chen
{"title":"Preliminary Study on Seasonal Changes of Infrared Thermal Images of Human Body","authors":"Bo Huang, Ziru Li, Xusheng Zhang, G. Lin, Zhigang Chen","doi":"10.1109/SOPO.2010.5504230","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504230","url":null,"abstract":"It is of great importance to study the manifestations and the influencing factors of the time-related changes of infrared thermal images (ITI) of human body since the variable body surface temperature distribution seriously affected the application of ITI in medicine. To explore the changes of ITI of human body in different seasons, a trial was carried out to study the skin temperature distribution of vertical and horizontal direction of the human body in winner and spring. The results showed that the temperature differences between upper and lower, left and right of the body in spring were greater than those in winter. Shengsheng capsule, one of the traditional Chinese medicine health food with immunity adjustment function, could influence the skin temperature distribution. Since the seasonal changes of human body could be reflected objectively by ITI, there are bright prospects for the application of ITI in medicine.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125753273","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}
{"title":"A Binary Text Image Authentication Algorithm Based on Short Digital Signature","authors":"Bao-jian Gao, Minghui Du","doi":"10.1109/SOPO.2010.5503986","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5503986","url":null,"abstract":"A new binary text image authentication algorithm based on short digital signature is proposed for protecting binary text image completely. The digital signature is used to certificate the uniform blocks and the normalization pretreatment is used to certificate the non-uniform blocks. False alarms can be eliminated by joint certification. The experiments and the analysis show that the content of binary text images can be protected completely by appending very short digital signature to the original image. With fine visual effect, the algorithm has high performance in detecting and locating tampers.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129458622","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}
B. You, Jing Wang, Jianhua Zhou, Weifeng Lin, Chaojian Tong, Z. Xiong
{"title":"Multipin Corona Poled System Designed for PMMA-Based Films","authors":"B. You, Jing Wang, Jianhua Zhou, Weifeng Lin, Chaojian Tong, Z. Xiong","doi":"10.1109/SOPO.2010.5504065","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504065","url":null,"abstract":"Based on the preliminary investigation and focused on the corona poling technology for modified PMMA films, some practical and operable way are proposed to enhance the poling efficiency and the second-order nonlinear optical effect of the films. For universal uneven distributions of the polarization field in traditional single-pin corona poled systems, a novel multi-pin corona poling structure is introduced and implemented. After a series of the polarization field simulations in different multi-pin structures, making use of finite difference method, a four-pin structure is determined as the most optimized for corona poling. The influences of the distance between the corona pin and the ground electrode, the number and arrangement of multipin on the distribution and efficiency of polarization field are also analyzed in detail. And then with single-pin and four-pin corona poling instruments, some polarization experiments for a modified PMMA/DR1 film were carried out, under different polarizing voltages and other optimized conditions. The results show that the four-pin corona poling structure is of great benefit to the improvement of polarization field distribution and efficiency.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129498636","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}
{"title":"Morphological Granulometric Feature of Speckled Speckles for Characterizing the Scattering Coefficient of Tissue Phantoms","authors":"Zhifang Li, Li Fan, Wenming Xie, Hui Li","doi":"10.1109/SOPO.2010.5504103","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504103","url":null,"abstract":"We demonstrated that the combination of speckled light and the granulometric density distribution is used as means of distinguishing the different scattering coefficient of highly scattering tissue phantom. The average size of granulometric density distribution is dependent on the scattering coefficient of strongly scattering samples. Finally, we use the space correlation theory to explain the phenomenon, and demonstrate that the average size is approximately inverse proportional to scattering coefficient of highly scattering tissue phantoms.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124529096","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}
{"title":"Temperature Monitor System of Heating Network Based on Optical Fiber Communication","authors":"Fei Wang, Weijie Wang, Rong Cao, Xuezeng Zhao","doi":"10.1109/SOPO.2010.5504123","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504123","url":null,"abstract":"A temperature monitoring system installed in Daqing Petrochemical Company, based on a combination of RS485 serial bus and optical fiber communication has been presented in this article, in which the intelligent temperature sensor DS18B20 was used. The interface circuit between the micro control unit (MCU) and DS18B20 has been designed, which can enhance the sensor-driven ability of the MCU and improve the reliability of signal transmission. Consequently, the interface and communication protocol between the MCU and data bus is designed. It is worth mentioning that a the combination of RS485 serial bus and optical fiber communication was introduced at the first time in the application of heating net work monitoring for a petrol chemical plant, which has succeeded in reducing the system cost whereas enhancing the communication reliability.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125078748","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}
Chao Chen, Yong-Qiang Zhao, Dan Liu, Q. Pan, Yong-mei Cheng
{"title":"Polarization and Spectral Information Jointly Utilization in Targets Classification under Different Weather Conditions","authors":"Chao Chen, Yong-Qiang Zhao, Dan Liu, Q. Pan, Yong-mei Cheng","doi":"10.1109/SOPO.2010.5504336","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504336","url":null,"abstract":"Although polarization and spectral information utilization has been received great attention with the sensor and detection technology advance, few results are showed to jointly utilize both of this information in targets classification. Polarization and spectral information reveals two different aspects of one single target, and therefore, if both of information is properly used, good performance would be achieved in the classification. In this paper, polarization and spectral information based on imagery is firstly acquired by spectropolarimeter imaging system. And then features that can represent polarization and spectral information, namely reflectance spectrum and degree of polarization spectrum, are extracted from imagery acquired respectively. As our built spectropolarimeter imaging system contains 33 bands at the range from 400 to 720nm, we proposed a custom band selection scheme which calculates the Euclidean distance of these two extracted features at each band, and select the bands which are respect to the former larger distances to achieve dimensional reduction. The reduced two features are inputted to Support Vector Machines respectively, and the degrees of membership belongs to each classes are assigned. Finally, we integrate these two features through fusion in the decision level using D-S theory. To highlight the advantages of jointly utilization of polarization and spectral information, classification results based on digital number (DN) value and any one single feature are compared to. And to prove the invariance of extracted features to weather conditions, we test the proposed jointly classification algorithm under two different weather conditions. The results based on the proposed method outperform the other three, and the advantage is much more evident in the cloudy weather.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"512 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130944206","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}
{"title":"A Labview Based Motion Control System for the Development of a Fluorescence Ultra-Fast Continuous Flow Rapid Mixing Device","authors":"Hua Lu, Xiaoyu Ding, Dacan Yang, Peng Qu, Yi Tao","doi":"10.1109/SOPO.2010.5504079","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504079","url":null,"abstract":"This paper introduces a LabVIEW based high precision motion control system for the development of a fluorescence ultra-fast continuous flow rapid mixing device. Solutions inside two syringes were co-injected by step-motor controlled syringe plunger movements into a micro-fluid mixer where the mixing process stars. The step motors were controlled by a NI 7344 motion controller programmed by the LabVIEW 8.2 real-time development system. Integration of these motion hardware and software products provides a fast prototyping for the ultra-fast mixing device.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131375187","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}
A. Najafi, M. Jalalkamali, S. Moghadamzadeh, M. Bolorizadeh
{"title":"Finite Element Method Analysis of Photonic Crystal Fiber Band Structure","authors":"A. Najafi, M. Jalalkamali, S. Moghadamzadeh, M. Bolorizadeh","doi":"10.1109/SOPO.2010.5504013","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504013","url":null,"abstract":"In this paper, we assume a class of photonic band gap fiber (PBGF) comprising of a triangular array of circular air holes as a clad. A scalar finite element method (FEM) with periodic boundary condition (PBC) is implemented to calculate and analyze the band structure of PBGF. Furthermore effect of permittivity constant of background material of clad is investigated on band structure diagram.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127280900","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}
{"title":"Stable High Power Narrow Linewidth Single Frequency Fiber Laser Using a FBG F-P Etalon and a Fiber Saturable Absorber","authors":"Zhi-yong Dai, Xiao-xia Zhang","doi":"10.1109/SOPO.2010.5504159","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504159","url":null,"abstract":"We experimentally demonstrated a stable high power narrow linewidth single frequency fiber ring laser. In laser cavity, a fiber Bragg grating Fabry-Perot (FBG F-P) etalon acts as reflector and mode-selecting device to reduce the longitudinal-mode density greatly, while short polarization-maintaining (PM) Er3+ -doped fiber (EDF) serves as a saturable absorber to suppress mode hopping and stabilize frequency effectively. Using Er3+/Yb3+ co-doped fiber and pumping by two multi-mode laser diodes at 975nm, stable single frequency laser at 1549.8nm was acquired. The presented fiber laser exhibited output power of 923.6mW was obtained upon 3.4W pump power. The corresponding optical-optical efficiency was 27.2% and the SNR was great than 50dB. The 3dB linewidth of the presented laser was about 5.0 kHz, measured by the delayed self-heterodyne method with 30-km single mode fiber.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116217418","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}
{"title":"Trust Region Method for Solving the Bioluminescence Tomography Inverse Problem","authors":"Xiaowei He, Zhiyong Zhang, Jingjing Yu","doi":"10.1109/SOPO.2010.5504107","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504107","url":null,"abstract":"Bioluminescence Tomography (BLT) reconstruction is a highly ill-posed inverse problem. In this research, we formulate it as a quadratically constrained least squares problem and present a trust region method for solving this problem. Simulations based on a heterogeneous phantom demonstrate that the trust region method has the capability to effectively handle the ill-posedness of BLT. The experiments results show that the proposed method outperforms Tikhonov regularization in terms of source location and reconstructed source energy.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116335252","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}