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2012 IEEE International Conference on Imaging Systems and Techniques Proceedings最新文献

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Real-time 3D visualisation in electrical capacitance tomography 实时三维可视化在电容断层扫描
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295480
Lei Ye, Wuqiang Yang
{"title":"Real-time 3D visualisation in electrical capacitance tomography","authors":"Lei Ye, Wuqiang Yang","doi":"10.1109/IST.2012.6295480","DOIUrl":"https://doi.org/10.1109/IST.2012.6295480","url":null,"abstract":"Electrical capacitance tomography (ECT) has been developed to provide 2D images, representing the cross-sectional permittivity distribution of industrial processes, such as oil pipelines and pharmaceutical fluidised beds. In some cases, 3D visualisation is more attractive than 2D. While some researchers worked on 3D ECT, the imaging speed was very slow, far away from real time. This paper introduces an approach to real-time 3D visualization in ECT, which can generate 3D images at almost the same speed as the traditional 2D images.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132300170","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: 7
Microwave imaging at resolution and super-resolution with ultra-wide band sensors 微波成像的分辨率和超分辨率与超宽带传感器
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295578
T. Zanoon, M. S. Hathal, M. Abdullah
{"title":"Microwave imaging at resolution and super-resolution with ultra-wide band sensors","authors":"T. Zanoon, M. S. Hathal, M. Abdullah","doi":"10.1109/IST.2012.6295578","DOIUrl":"https://doi.org/10.1109/IST.2012.6295578","url":null,"abstract":"Intensive research has been carried in microwave tomography techniques towards non-invasive imaging targeting several civil and military applications. The interest in using microwave frequencies for imaging arises from the super-resolution capability, and low operating cost. In the medical field, non-ionizing properties and patient convenience are major advantages. However, the realization of this imaging technique faces several challenges, mainly related to sophisticated mathematical inversion techniques and experimental data acquisition systems although its foundations were laid out more than three decades ago, given the difficulty in obtaining accurate and effective dielectric reconstructions. This paper provides an insight on microwave imaging, focusing on techniques and procedures in realizing the super-resolution accuracy.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115686143","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
Ontology-based 3D pose estimation for autonomous object manipulation 自主对象操作中基于本体的三维姿态估计
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295586
R. Kouskouridas, Theodora Retzepi, Eleni Charalampoglou, A. Gasteratos
{"title":"Ontology-based 3D pose estimation for autonomous object manipulation","authors":"R. Kouskouridas, Theodora Retzepi, Eleni Charalampoglou, A. Gasteratos","doi":"10.1109/IST.2012.6295586","DOIUrl":"https://doi.org/10.1109/IST.2012.6295586","url":null,"abstract":"In this paper a novel solution to the problem of guiding a robotic gripper in order to perform manipulation tasks, is presented. The proposed approach consists of two main modules corresponding to the training and testing sessions, respectively. During training, we employ an ontology-based framework with a view to the establishment of a database holding information regarding several geometrical attributes of the training objects. An accurate estimation of the 3D pose of an object-target is obtained during the testing phase and through the efficient exploitation of the established database. The most common solution to the 3D pose estimation problem implies extensive training sessions that are based on oversampled datasets containing several instances objects captured under varying view-points. However, such an approach engenders high complexity accompanied by large computational burden. We address this issue by proposing an ontology-based framework and a fuzzy-based approach that is able to efficiently interpolate between two known instances of the trained objects. Experimental results justify both our theoretical claims and our choice to adopt an ontology-based solution.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116034972","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: 5
A digital and analog mixed electrical capacitance tomography system using combining electrode strategy 一种采用组合电极策略的数模混合电容层析成像系统
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295485
Yunjie Yang, Lihui Peng
{"title":"A digital and analog mixed electrical capacitance tomography system using combining electrode strategy","authors":"Yunjie Yang, Lihui Peng","doi":"10.1109/IST.2012.6295485","DOIUrl":"https://doi.org/10.1109/IST.2012.6295485","url":null,"abstract":"Electrical capacitance tomography (ECT) has been studied for more than twenty years and great progress has been made. In this paper, we presented a digital and analog mixed ECT system using combining electrode strategy. The system can be configured flexibly as typical ECT sensor mode and also the newly proposed combining electrode mode. Both the digital phase-sensitive demodulation and the typical analog multiplication demodulation were implemented in this system. Reconstructions using the experimental data of traditional 8-electrode ECT sensor, combined symmetrical 8-electrode mode and combined asymmetrical 8-electrode mode were presented respectively. The proposed ECT system can be flexibly configured as different modes and satisfy the requirement of different applications and research.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"616 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116077152","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 mini-batch discriminative feature weighting algorithm for LBP - Based face recognition 基于LBP的人脸识别小批量判别特征加权算法
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295521
O. Nikisins, M. Greitans
{"title":"A mini-batch discriminative feature weighting algorithm for LBP - Based face recognition","authors":"O. Nikisins, M. Greitans","doi":"10.1109/IST.2012.6295521","DOIUrl":"https://doi.org/10.1109/IST.2012.6295521","url":null,"abstract":"This paper proposes a mini-batch discriminative feature weighting methodology for minimization of classification error in datasets with considerable number of classes and poor intra class information. Presented approach improves the classification system by enhancing the components more relevant to the recognition. It is based on the maximization of interclass Euclidean distance by utilization of information from all classes. A weighted nearest neighbor classifier is used for the classification. A mini-batch principle is implemented into the training process in order to boost the learning speed, which is a bottleneck for traditional batch algorithms. We report how the weighting can be applied to the task of Local Binary Patterns-based face recognition. The performance of the algorithm is evaluated on a color FERET database.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123836736","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: 4
Ultrafast electron beam X-ray computed tomography for 2D and 3D two-phase flow imaging 用于二维和三维两相流成像的超快电子束x射线计算机断层扫描
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295548
M. Bieberle, F. Barthel, D. Hoppe, M. Banowski, M. Wagner, D. Lucas, T. Sturzel, U. Hampel
{"title":"Ultrafast electron beam X-ray computed tomography for 2D and 3D two-phase flow imaging","authors":"M. Bieberle, F. Barthel, D. Hoppe, M. Banowski, M. Wagner, D. Lucas, T. Sturzel, U. Hampel","doi":"10.1109/IST.2012.6295548","DOIUrl":"https://doi.org/10.1109/IST.2012.6295548","url":null,"abstract":"Imaging of complex and dynamic processes such as two- or multiphase flows with high structural as well as temporal resolution has always been a challenging task. In recent years, the electron beam X-ray computed tomography technique has been developed towards a powerful imaging tool, which reaches frame rates of 8000 fps in 2D and 1000 fps in 3D. In this paper, the latest developments as well as selected applications of ultrafast electron beam X-ray CT are presented.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127234418","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: 6
Boundary element method for a kind of 3-D PEC magnetic induction problem 一类三维PEC磁感应问题的边界元法
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295551
Qian Zhao, Jianna Hao, Xu Kai, Guang Chen, W. Yin
{"title":"Boundary element method for a kind of 3-D PEC magnetic induction problem","authors":"Qian Zhao, Jianna Hao, Xu Kai, Guang Chen, W. Yin","doi":"10.1109/IST.2012.6295551","DOIUrl":"https://doi.org/10.1109/IST.2012.6295551","url":null,"abstract":"In general, the electromagnetic problem with certain boundary value is composed of a partial differential equation (PDE) and essential boundary conditions. BEM (boundary element method) is an effective way to analyze some electromagnetic problems with integral formulations. By point collocation, the boundary integral equation can be transformed into linear equations. Then numerical method is used to solve the linear equations and finally the solution of the original PDE equations can be obtained. For perfect electric conductor (PEC) between coils, the induced voltage of the receiver coil due to the conductor can be calculated using the secondary magnetic field scattered from the target. Here we compute the sensitivity distributions between two coils due to a PEC object using perturbation method, and the results show that BEM is an effective way to calculate sensitivity maps in magnetic induction problems.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128489710","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
A digital demodulation method for electrical tomography based on sine wave rectification 基于正弦波整流的电断层成像数字解调方法
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295530
Haili Zhou, Lijun Xu, Z. Cao, S. Fan, H. Pei
{"title":"A digital demodulation method for electrical tomography based on sine wave rectification","authors":"Haili Zhou, Lijun Xu, Z. Cao, S. Fan, H. Pei","doi":"10.1109/IST.2012.6295530","DOIUrl":"https://doi.org/10.1109/IST.2012.6295530","url":null,"abstract":"In this paper, a digital demodulation method used for AC-based electrical tomography systems is presented. The demodulation result can be easily obtained by rectifying the sinusoidal measurement signal in a digital way. The proposed demodulation method has some distinguished characteristics: (a) with a concise configuration, it can be implemented on simple digital signal processors without hardware multipliers, e.g. Complex Programmable Logic Device (CPLD); (b) no reference signals are involved, (c) according to the requirements of precision and Signal-to-Noise Ratio (SNR), the demodulation process can be accomplished within k/2 (k=1, 2, 3, ...) sine wave periods; and (d) the effectiveness of the proposed method is not influenced by the starting time of demodulation. Mathematical analysis and numerical simulation results are presented to prove the feasibility and effectiveness of the digital demodulation method based on sine wave rectification.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125908353","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
A three-dimensional shape descriptor for burner flames 燃烧器火焰的三维形状描述符
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295595
Tian Qiu, Yong Yan, G. Lu
{"title":"A three-dimensional shape descriptor for burner flames","authors":"Tian Qiu, Yong Yan, G. Lu","doi":"10.1109/IST.2012.6295595","DOIUrl":"https://doi.org/10.1109/IST.2012.6295595","url":null,"abstract":"The shape of a burner flame is an important characteristic closely linked to the burner configuration, fuel type, and other operational parameters of a combustion process. This paper presents an algorithm to extract the 3-D medial axis of a burner flame and use it as a descriptor for the flame shape characterization. The algorithm is based on the 2-D medial axes of two flame images captured from two orthogonal directions of the burner using a flame imaging system. Since the data of the extracted features are much less than those of the original image, the computing process is simplified and efficient. Experimental results demonstrate that the flame 3-D medial axis determined using the proposed algorithm reflects its dynamical movement. Together with the radial parameter of the defined medial axis, a range of 3-D geometric parameters of the flame can be estimated.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114456004","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
Performance analysis of image sensor communication over free space optical channel 自由空间光信道图像传感器通信性能分析
2012 IEEE International Conference on Imaging Systems and Techniques Proceedings Pub Date : 2012-07-16 DOI: 10.1109/IST.2012.6295587
Jiang Liu, Zhenni Pan, S. Shimamoto
{"title":"Performance analysis of image sensor communication over free space optical channel","authors":"Jiang Liu, Zhenni Pan, S. Shimamoto","doi":"10.1109/IST.2012.6295587","DOIUrl":"https://doi.org/10.1109/IST.2012.6295587","url":null,"abstract":"This paper presents a free space visible light communication (VLC) system using an image sensor as a receiver to acquire position related timely information. Since the atmospheric turbulence affects the communication quality, the analysis of atmospheric turbulence is very important for designing a practical communication system. In this paper, the atmospheric turbulence channel is analyzed. The method of characterizing and quantifying the influence of atmospheric effect to image sensor communication is presented. The noise model of the system using CMOS image sensor as a receiver is given. Furthermore, the bit error probability of the system using OOK modulation considering atmospheric turbulence is studied.","PeriodicalId":213330,"journal":{"name":"2012 IEEE International Conference on Imaging Systems and Techniques Proceedings","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124015035","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
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