2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel最新文献_第7页

A weighted multichannel Wiener filter for multiple sources scenarios 一个加权多通道维纳滤波器的多源方案

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376958

S. Markovich-Golan, S. Gannot, I. Cohen

引用次数: 23

A license plate detection and character segmentation method under difficult conditions 一种困难条件下车牌检测与字符分割方法

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376951

I. Benou, R. Yochanan

引用次数: 3

Spherical microphone array with optimal aliasing cancellation 具有最佳混叠消除的球形麦克风阵列

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377007

D. Alon, B. Rafaely

引用次数: 10

Uplink downlink balancing using variable feedback rates 采用可变反馈速率的上行链路下行均衡

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377108

I. Bergel, D. Yellin, S. Shamai

引用次数: 7

Breaking the 1 meter accuracy bound in commercial GNSS devices 突破商用GNSS设备的1米精度界限

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376966

R. Yozevitch, B. Ben Moshe, H. Levy

引用次数: 15

Pileup attenuation for spectroscopic signals using a sparse reconstruction 利用稀疏重建的光谱信号的堆积衰减

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377045

M. Lopatin, N. Moskovitch, T. Trigano, Y. Sepulcre

{"title":"Pileup attenuation for spectroscopic signals using a sparse reconstruction","authors":"M. Lopatin, N. Moskovitch, T. Trigano, Y. Sepulcre","doi":"10.1109/EEEI.2012.6377045","DOIUrl":"https://doi.org/10.1109/EEEI.2012.6377045","url":null,"abstract":"In the field of Gamma spectroscopy, the energy spectrum is a histogram of particle energies which is of interest in order to identify an unknown radioactive source. These energies are typically computed as the integral of electrical pulses generated the interaction of Gamma photons with a known semiconductor detector. Due to the finite resolution of the detector, close electrical pulses tend to overlap; this phenomenon, known by the practitioner as pileup effect, yields a severe distortion of the energy spectrum. We present in this contribution a method for pileup attenuation, in order to correct the main distortions caused by the pileup effect. This method can be decomposed in two steps. First, we compute a sparse representation of the signal by means of LASSO in order to estimate the arrival times of each individual electrical pulse and the radioactive source activity. The second step consists in estimating the pulse individual energies by means of another iteration of LASSO, with a smaller value of its sparsity parameter, and plug the obtained values into a standard nonparametric kernel estimator to obtain a corrected energy spectrum. We illustrate the performances of the suggested approach on signals stemming from a High Purity Germanium detector, with a medium activity.","PeriodicalId":177385,"journal":{"name":"2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel","volume":"26 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":"133393609","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

Metallic nanosculptured thin films for biosensing applications using surface Plasmon resonance and enhanced spectroscopies 利用表面等离子体共振和增强光谱进行生物传感应用的金属纳米薄膜

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377040

A. Shalabney, C. Khare, Bernd Rauschenbach, I. Abdulhalim

引用次数: 0

Band selection for gas detection in hyperspectral images 高光谱图像中气体检测的波段选择

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376973

P. Kuflik, S. Rotman

引用次数: 8

Shape representation by metric interpolation 用度量插值表示形状

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6376980

Y. Aflalo, R. Kimmel

{"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}

引用次数: 0

Breast tissue classification in mammograms using visual words 乳房x光照片中使用视觉词的乳腺组织分类

2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel Pub Date : 2012-12-11 DOI: 10.1109/EEEI.2012.6377061

I. Diamant, H. Greenspan, J. Goldberger

引用次数: 4