B. Kapilevich, Y. Pinhasi, M. Anisimov, B. Litvak, D. Hardon
{"title":"Quasi-noise illumination in mm-wave imaging: From concept to realization","authors":"B. Kapilevich, Y. Pinhasi, M. Anisimov, B. Litvak, D. Hardon","doi":"10.1109/EEEI.2012.6377104","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377104","url":null,"abstract":"The paper describes the W-band single-pixel imaging de tector with a pulse-noise source in the Tx-channel and the direct detecting circuitry in the Rx-channel. The detector is maintained on X-Y programmable scanner controlled by LabView interface which is integrated with MatLab used for online image reconstruction. The application of an incoherent illumination generated by the frequency-limited quasi noise source improves image quality compared with the coherent mode widely used in conventional active imagers.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130871739","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":"Fusion filter for hyperspectral target detection","authors":"Elad Cohen, R. Peiser, S. Rotman","doi":"10.1109/EEEI.2012.6376943","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376943","url":null,"abstract":"This paper presents work done using Schaum's fusion method, implemented in the CFAR (constant false alarm ratio) approach on a set of data in order to evaluate the success rate of this method with regard to common popular methods such as the GLRT, RX and a competing Projection Method created by the authors. The testing scheme involved the introduction of a free parameter in the form of a shading factor which affects similarly both the background and the target. Finally, the simulation results will be presented and discussed together with an analysis of the error regions from the fusion method implementation to outline the expected operation performance envelope for the fusion algorithm.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"110 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128732567","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 weighted multichannel Wiener filter for multiple sources scenarios","authors":"S. Markovich-Golan, S. Gannot, I. Cohen","doi":"10.1109/EEEI.2012.6376958","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376958","url":null,"abstract":"The scenario of P speakers received by an M microphone array in a reverberant enclosure is considered. We extend the single source speech distortion weighted multichannel Wiener filter (SDW-MWF) to deal with multiple speakers. The mean squared error (MSE) is extended by introducing P weights, each controlling the distortion of one of the sources. The P weights enable further control in the design of the beamformer (BF). Two special cases of the proposed BF are the SDW-MWF and the linearly constrained minimum variance (LCMV)-BF. We provide a theoretical analysis for the performance of the proposed BF. Finally, we exemplify the ability of the proposed method to control the tradeoff between noise reduction (NR) and distortion levels of various speakers in an experimental study.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128748548","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":"Architectural comparison between VLIW and Vector processors","authors":"G. Yuval, A. Mendelson, S. Greenberg","doi":"10.1109/EEEI.2012.6377077","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377077","url":null,"abstract":"Emerging standards for wireless communication and multimedia involve complex digital signal processing (DSP) algorithms that require support for both typical DSP kernels and control-oriented tasks. Modern DSP processor architecture must meet the changing needs of DSP applications that target these very demanding standards. This paper considers the efficiency of selected DSP architectures and how they process the LTE software framework used in wireless communication. Three architectural approaches are compared - VLIW, Vector, and Hybrid approach - in terms of their performance, area, and power consumption. Performance analysis is based on a Performance Accurate Simulator (PAC) executing optimized code for each of the architectures. Area and power consumption estimates are based on a synthesis of an existing DSP processor employing a dedicated power simulator. The VLIW approach outperforms the other two architectures. However, results show that the Hybrid approach, which combines both VLIW and Vector processors, is the most efficient architecture in terms of performance-to-power ratio.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127522863","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}
M. Fire, D. Kagan, Rami Puzis, L. Rokach, Y. Elovici
{"title":"Data mining opportunities in geosocial networks for improving road safety","authors":"M. Fire, D. Kagan, Rami Puzis, L. Rokach, Y. Elovici","doi":"10.1109/EEEI.2012.6377049","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377049","url":null,"abstract":"Traffic measurements, road safety studies, and surveys are required for efficient road planning and ensuring the safety of transportation. Unfortunately, these methods can be cumbersome and very expensive. In this paper we point out a source of transportation information that is based on collaborative community-based navigation applications, such as Waze. Partial and anonimized information publicly exposed by Waze through their application provides valuable information that can significantly ease the future of transportation studies. Moreover, we show that Waze user reports may expose locations plagued with accidents but in lacking police coverage. This knowledge may help police departments to improve road safety by relocating the police units to these locations. Lastly, the data discussed in this paper connects transportation and road safety research to location based services and social network platforms.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127727873","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":"Error correction based on hamming distance preserving in arithmetical and logical operations","authors":"S. Dolev, S. Frenkel, D. Tamir","doi":"10.1109/EEEI.2012.6376946","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376946","url":null,"abstract":"The traditional approach to fault tolerant computing involves replicating computation units and applying a majority vote operation on individual result bits. This approach, however, has several limitations; the most severe is the resource requirement. This paper presents a new method for fault tolerant computing where for a given error rate, the hamming distance between correct inputs and faulty inputs as well as the hamming distance between a correct result and a faulty result is preserved throughout processing; thereby enabling correction of up to transient faults per computation cycle. The new method is compared and contrasted with current protection methods and its cost / performance is analyzed.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122445819","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":"Five-parameter model of photovoltaic cell based on STC data and dimensionless","authors":"S. Lineykin, M. Averbukh, A. Kuperman","doi":"10.1109/EEEI.2012.6377079","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377079","url":null,"abstract":"This paper offers a novel approach of the “singlediode” equivalent circuit model estimation, which is based on analysis of the characteristics of the solar panel supplied by the manufacturer. The method combines solution of a system of algebraic equations with optimization algorithm for extracting the seven photovoltaic module parameters of the single diode lumped circuit model. These parameters are the photocurrent, the reverse bias saturation current, the ideality factor, the series resistance, the shunt resistance, the bandgap energy, and the temperature coefficient of the photo-generating current. A minimal set of experimental data is required for parameter extraction. In many cases, the required parameters can be extracted directly from the manufacturer's data. The number of solar panels of different types of manufacturers were analyzed. All the models have been obtained from the manufacturer's data only. The precision of simulation results is about 0.1%-0.5% for STC.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127109758","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 license plate detection and character segmentation method under difficult conditions","authors":"I. Benou, R. Yochanan","doi":"10.1109/EEEI.2012.6376951","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376951","url":null,"abstract":"This paper presents a novel frame-by-frame license plate detection and character segmentation method for security applications. The system is based on edge statistics, mathematical morphology and typical license plate grayscale pattern. The system locates and extracts Israeli license plates from a grayscale video which was recorded under difficult illumination conditions. While existing systems usually operate in a lenient environment, the proposed system works under highly complex conditions. The system consists of three stages: 1) Extraction of the region of interest (ROI). 2) License plate search and classification of possible candidates. 3) Character segmentation. The system was tested on a video data containing 4668 frames, and achieved a success rate of 86.6%.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134006730","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":"Shape representation by metric interpolation","authors":"Y. Aflalo, R. Kimmel","doi":"10.1109/EEEI.2012.6376980","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6376980","url":null,"abstract":"Coordinates of vertices in a triangulated surface can be efficiently represented as a set of coefficients that multiply a given basis of functions. One such natural orthonormal basis is provided by the eigenfunctions of the Laplace-Beltrami operator of a given shape. The coefficients in this case are nothing but the result of the scalar inner product of the coordinates treated as a smooth function on the surface of the shape and the eigenfunctions that form the orthonormal basis. Keeping only the significant coefficients allows for efficient representation of a given shape under practical transformations. Selecting the regular metric for the construction of the Laplace-Beltrami operator we notice that while the general shape is preserved, important fine details are often washed out. At the other end, using a scale invariant metric for defining the operator and the corresponding basis, preserves the fine details at the potential expense of loosing the general structure of the shape. Here, we adopt the best of both worlds. By finding the right mix between scale invariant and a regular one we select the metric that serves as the best representation-basis generator for a given shape. We use the mean square error (MSE) to select the optimal space for shape representation, and compare the results to classical spectral shape representation techniques.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127647189","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":"Breast tissue classification in mammograms using visual words","authors":"I. Diamant, H. Greenspan, J. Goldberger","doi":"10.1109/EEEI.2012.6377061","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377061","url":null,"abstract":"The presence of Microcalcifications is an important indicator for developing breast cancer. Additional indicators for cancer risk exist, such as breast tissue density type. Different methods have been developed for breast tissue classification for use in CAD systems. Recently, the visual words (VW) model has been successfully applied for different classification tasks. The goal of our work is to explore VW based methodologies for various mammography classification tasks. We start with the challenge of classifying breast density and then focus on classification of normal tissue versus Microcalcifications. Classification tasks were performed using Support Vector Machine. The results demonstrate the feasibility to classify breast tissue using our model. Currently, we are investigating VW capability to classify additional mammogram classification problems, suggesting new means for automated tools for mammography diagnosis support.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116159619","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}