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2010 Symposium on Photonics and Optoelectronics最新文献

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Vehicle Type Measurement Using a Laser Distance Sensor with High Pulse Repetition and Accuracy 采用高脉冲重复精度的激光距离传感器进行车辆类型测量
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504382
Qian-jin Tang, Jie Shao, Jianyong Chen, Zhi-zong Wu
{"title":"Vehicle Type Measurement Using a Laser Distance Sensor with High Pulse Repetition and Accuracy","authors":"Qian-jin Tang, Jie Shao, Jianyong Chen, Zhi-zong Wu","doi":"10.1109/SOPO.2010.5504382","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504382","url":null,"abstract":"To ensure traffic security and avoid traffic congestion, accommodation lane is set. A vehicle type measurement device is used to capture the violation drivers. The vehicle type measurement device uses a laser distance sensor with 1.2 KHz pulse repetition and 20 mm accuracy per pulse. The experiment shows that this laser distance sensor can obtain the vehicle profiles to distinguish bus, camion, trailer, sedan and taxi. The chip TDC-GP2 chip is used in the sensor to realize the performance.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"365 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":"123387078","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}
引用次数: 2
Qualitative Determination of the Components of Textile Products Using near Infrared Spectroscopy 近红外光谱法定性测定纺织产品成分
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504412
Dong-min Wang, Furong Huang, Huacai Chen, Shangzhong Jin, Xingdan Chen
{"title":"Qualitative Determination of the Components of Textile Products Using near Infrared Spectroscopy","authors":"Dong-min Wang, Furong Huang, Huacai Chen, Shangzhong Jin, Xingdan Chen","doi":"10.1109/SOPO.2010.5504412","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504412","url":null,"abstract":"In the paper, A total of 40 pure or two-mixed textile weaves were prepared and classification of these samples was introduced using near infrared spectroscopy (NIRS), all textile samples are selected among four classes, which are Cotton-Terylene, Cotton-Polyurethane, Cotton and Terylene, according to theirs components. Near infrared diffuse reflectance spectra of the samples were collected, Mahalanobis distance was used to discriminate the samples coupled with principle components analysis (PCA), the results showed that near infrared spectroscopy could determine which class one textile weave belongs to easily comparing with traditional methods. In addition, the expectation of the further research on qualitative determination of textile products by NIR technology was discussed in the end of this paper.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"124 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":"123441164","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}
引用次数: 0
A New Space Image Segmentation Method Based on the Non-Subsampled Contourlet Transform 基于非下采样Contourlet变换的空间图像分割新方法
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504342
Jichao Jiao, Baojun Zhao, Hui Zhang
{"title":"A New Space Image Segmentation Method Based on the Non-Subsampled Contourlet Transform","authors":"Jichao Jiao, Baojun Zhao, Hui Zhang","doi":"10.1109/SOPO.2010.5504342","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504342","url":null,"abstract":"Image segmentation is very essential and critical to image processing and pattern recognition. In order to extract the feature stars, a novel method for image segmentation by use of nonsubsampled contourlet transform (NSCT) is provided by this paper. The space images are transformed by the NSCT, and then the magnitude of the NSCT coefficients of all the directional subbands at a specific level are computed and the magnitude are compared with the adaptive multilevel threshold which is gained by the Lorentz information measure (LIM), so the edges of the stars are extracted. Using the measure of consistency (F) as the evaluation criterion and compared with the Otsu method, the preliminary experimental results demonstrate the robustness and efficiency of the proposed algorithm in the presence of noise in the space image and the high accurate segmentation of this algorithm.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"6 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":"123035947","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}
引用次数: 2
Spherical Photonic Crystal Microcavity with Ultra-High Quality Factor 超高品质因数球形光子晶体微腔
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504076
Lin Luo, Chun Jiang
{"title":"Spherical Photonic Crystal Microcavity with Ultra-High Quality Factor","authors":"Lin Luo, Chun Jiang","doi":"10.1109/SOPO.2010.5504076","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504076","url":null,"abstract":"In this paper, we introduce a concept of spherical Photonic Crystal (SPhC) Cavity. The cavity is composed of a serial of concentric spherical shells with periodic refractive index. Such a cavity has a strong ability to confine light and energy. Optical quality factor of our structure can achieve 10^9 order. Moreover, a complete three dimension photonic band gap can be obtained due to the spherical symmetry it owns. The result is calculated by Finite-Difference Time-Domain (FDTD) method.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"14 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":"121693267","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}
引用次数: 1
Stereoscopic Image Acquisition and Autostereoscopic Display 立体图像采集与自动立体显示
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504069
Ai-hong Wang, Qiong‐Hua Wang, Da-hai Li
{"title":"Stereoscopic Image Acquisition and Autostereoscopic Display","authors":"Ai-hong Wang, Qiong‐Hua Wang, Da-hai Li","doi":"10.1109/SOPO.2010.5504069","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504069","url":null,"abstract":"Stereoscopic image acquisition and stereoscopic three dimensional (3D) displays are interdependent and inseparable. The scenes reproduced in 3D displays are captured by stereoscopic image acquisition, and the contents obtained by stereoscopic image acquisition are finally shown in 3D displays. The paper reviews various layout structures of the stereo cameras and their advantages and advantages. The structures, principles and properties of parallax barrier and lenticular lens autostereoscopic 3D displays are also expounded in the paper.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"42 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":"121771690","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}
引用次数: 0
Study on the Gasoline Classification Methods Based on near Infrared Spectroscopy 基于近红外光谱的汽油分类方法研究
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504441
J. Zhang, Li Jiang, Qian Yu, Zhe Chen
{"title":"Study on the Gasoline Classification Methods Based on near Infrared Spectroscopy","authors":"J. Zhang, Li Jiang, Qian Yu, Zhe Chen","doi":"10.1109/SOPO.2010.5504441","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504441","url":null,"abstract":"The purpose of this paper is to classify 93# and 97# gasoline by using principal component analysis (PCA) with self-organizing competitive neural network method and to establish near infrared transmission spectroscopy and reflectance spectroscopy qualitative identification model in 1100-1700nm spectral region. The spectral data is condensed by PCA method before modeling, and three principal components are chosen because their cumulative credibility has reached 97%. A three-layer self-organizing competitive neural network model is established based on the PCA method. Thirty-two wavelengths' absorbance is served as inputs of the self-organizing competitive neural network. The learning parameter is set as 0.01 and the training iteration is taken as 500. The conclusion is that it is feasible to apply near infrared transmission spectroscopy and reflectance spectroscopy qualitative identification model to discriminate the gasoline products as the PCA and self-organizing competitive neural networks method is used.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"40 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":"122128827","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}
引用次数: 1
The Application of Improved Canny Algorithm in Internal Waves' Parameters from MODIS Remote Sensing Images 改进Canny算法在MODIS遥感影像内波参数提取中的应用
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504190
Fang-fang Chen, Xing-fang Jiang, Zhong-yi Jiang
{"title":"The Application of Improved Canny Algorithm in Internal Waves' Parameters from MODIS Remote Sensing Images","authors":"Fang-fang Chen, Xing-fang Jiang, Zhong-yi Jiang","doi":"10.1109/SOPO.2010.5504190","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504190","url":null,"abstract":"The improved Canny algorithm was presented about the issue of weak signal in a MODIS remote sensing image on oceanic internal waves. First, the threshold method was used to filter out the noise of the remote sensing image. Second, the Canny algorithm was used to detect edges and then edges of some oceanic internal wave crests were thinned. At last, the curves were determined by straight-line fitting equation. The propagation directions were obtained from north by west 47°to 76° in the northeast of Dongsha Islands. The range of wavelengths in the examples was from 1.1 to 3.5km. The result indicated two points. The first one was that the MODIS remote sensing image whose resolution was 250m could be used to study oceanic internal waves. The second one was that the improved Canny algorithm adopted to extract parameters of oceanic internal waves was feasible.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"82 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":"114081732","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}
引用次数: 1
The Realization of Computer Generated Integral Imaging Based on Two Step Pickup Method 基于两步拾取法的计算机生成积分成像的实现
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504393
Huan Deng, Qiong‐Hua Wang, Da-hai Li
{"title":"The Realization of Computer Generated Integral Imaging Based on Two Step Pickup Method","authors":"Huan Deng, Qiong‐Hua Wang, Da-hai Li","doi":"10.1109/SOPO.2010.5504393","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504393","url":null,"abstract":"A three-dimensional (3D) scene is built up, and a camera array is used to simulate a micro-lens array to pick up the 3D scene in 3DS MAX software. Based on the principle of two step pickup method in computer generated integral imaging, the mathematical model of the secondary pickup is proposed, and the secondary integral image is synthesized using the proposed mathematical model. A vivid 3D scene is reconstructed using computational and optical methods.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"71 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":"122754691","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}
引用次数: 3
Optically Pumped Terahertz Laser Based on Three-Level Transition in D2O 基于D2O三能级跃迁的光抽运太赫兹激光器
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504170
Huafeng Shi, Lei Jin, Yuanfu Lu, Xiaojing Gong, Yandong Zhang, Han Cui
{"title":"Optically Pumped Terahertz Laser Based on Three-Level Transition in D2O","authors":"Huafeng Shi, Lei Jin, Yuanfu Lu, Xiaojing Gong, Yandong Zhang, Han Cui","doi":"10.1109/SOPO.2010.5504170","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504170","url":null,"abstract":"A terahertz (THz) pulse laser with a wavelength of 385 μm is optically pumped by a transverse excited atmospheric CO2 laser based on three-level transition in D2O vapor. The used CO2 laser wavelength is 9.26 μm with an output peak power density of 3.0 MW/cm2. The 385 μm THz pulse signal was observed at different D2O vapor pressures. The energy of the THz pulse is performed as a function of the D2O vapor pressure, and a maximum THz pulse signal energy is obtained.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"19 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":"123848775","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}
引用次数: 0
10-Gb/s Vertical Cavity Surface Emitting Laser Driver 10gb /s垂直腔面发射激光驱动器
2010 Symposium on Photonics and Optoelectronics Pub Date : 2010-06-19 DOI: 10.1109/SOPO.2010.5504051
Ji Chen, Wenyuan Li, Zhigong Wang
{"title":"10-Gb/s Vertical Cavity Surface Emitting Laser Driver","authors":"Ji Chen, Wenyuan Li, Zhigong Wang","doi":"10.1109/SOPO.2010.5504051","DOIUrl":"https://doi.org/10.1109/SOPO.2010.5504051","url":null,"abstract":"A 10-Gb/s Vertical Cavity Surface Emitting Laser (VCSEL) current driver is designed in SMIC 0.18-μm RF CMOS technology, which will be used in the transmitter of optical interconnect system. High current driving capability as well as agile switching speed is achieved by shunt peaking technique and cascade structure. Under a single 1.8V power supply, the driver delivers a modulation current of more than 10mA and consumes only 22.5mW when working at 10-Gb/s. The simulation results show that it can drive the common anode VCSEL well. The chip size is 800×500μm^2.","PeriodicalId":155352,"journal":{"name":"2010 Symposium on Photonics and Optoelectronics","volume":"58 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":"126332549","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}
引用次数: 2
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