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2007 IEEE 15th Signal Processing and Communications Applications最新文献

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Evaluation Of 3D High Resolution Images Using Inexpensive Distributed Parallel System : Application Fields On Medical Images 利用廉价的分布式并行系统评价三维高分辨率图像:在医学图像上的应用领域
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298787
H. Eren, U. Celik, M. Poyraz
{"title":"Evaluation Of 3D High Resolution Images Using Inexpensive Distributed Parallel System : Application Fields On Medical Images","authors":"H. Eren, U. Celik, M. Poyraz","doi":"10.1109/SIU.2007.4298787","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298787","url":null,"abstract":"In the telesurgery operations, images should be high resolution and processed in real time. It seems difficult to accomplish this process in real time using only one computer. In our study, we propose to get 3D scene images inside and outside of surgery environment in real time and transfer them into different places. As known, 3D reconstruction needs intensive calculations. Nowadays, using distributed parallel systems are getting increase. Therefore, we investigate the performance rates using a group of inexpensive inert computers which work as a distributed parallel system supposed to be established in a medical environment.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130975698","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
Adaptive Inter-View Rate Allocation for Scalable Stereo Video Coding with an Objective Stereo Video Quality Measure 基于客观立体视频质量度量的可扩展立体视频编码自适应视间率分配
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298824
N. Ozbek, A. Tekalp, E. T. Tunali
{"title":"Adaptive Inter-View Rate Allocation for Scalable Stereo Video Coding with an Objective Stereo Video Quality Measure","authors":"N. Ozbek, A. Tekalp, E. T. Tunali","doi":"10.1109/SIU.2007.4298824","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298824","url":null,"abstract":"/t.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126837237","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 Fuzzy Logic Based Channel Estimation in Walsh-Hadamard Transform Employed OFDM Systems 基于模糊逻辑的OFDM系统Walsh-Hadamard变换信道估计
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298601
A. Ozen, B. Soysal, L. Kay
{"title":"A Fuzzy Logic Based Channel Estimation in Walsh-Hadamard Transform Employed OFDM Systems","authors":"A. Ozen, B. Soysal, L. Kay","doi":"10.1109/SIU.2007.4298601","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298601","url":null,"abstract":"Performances of channel estimation and carrier frequency offset (CFO) tracking algorithms for a Walsh Hadamard transform employed OFDM systems are investigated for frequency selective Rayleigh fading channels in this paper. Since the channel estimation and CFO tracking performance of the simple least mean squares (LMS) is found to be poorer, a fuzzy based step-size controller is employed to increase speed and accuracy of LMS training. The simulation results show that the proposed method increases the performance of the LMS algorithm significantly and converges to the performances of the RLS algorithm.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126554074","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
Microarray Gene Expression and Stable Laws 微阵列基因表达及稳定规律
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298832
E. Kuruoğlu, Diego Salas, D. Ruiz
{"title":"Microarray Gene Expression and Stable Laws","authors":"E. Kuruoğlu, Diego Salas, D. Ruiz","doi":"10.1109/SIU.2007.4298832","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298832","url":null,"abstract":"In this work, the authors study the statistical distribution of microarray gene expression data. In particular, we give a brief review of literature pointing to the non-Gaussian features of gene expression data in the form of impulsiveness and asymmetry. We note that several previous publication note the Pareto tail behaviour in the data. We present a new model, namely the stable distribution to describe the observed statistical features of the data which is a subfamily of Pareto-tail distributions.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121337712","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
Plate Detection and Recognition by using Colour Information and ANN 基于颜色信息和人工神经网络的车牌检测与识别
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298583
Z. Telatar, E. Çamaşırcıoğlu
{"title":"Plate Detection and Recognition by using Colour Information and ANN","authors":"Z. Telatar, E. Çamaşırcıoğlu","doi":"10.1109/SIU.2007.4298583","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298583","url":null,"abstract":"Automatic car plate recognition finds large application areas in the contemporary world It can be used in carparks and/or places where entries and exits are wanted under control. A car plate recognition system consist of three main division. These are; detecting the plate location, segmenting the characters and recognizing the characters. Processing the whole picture in order to determine plate location takes lots of time. Instead of processing whole picture, determining candidate plate locations and processing these areas increase achievement of the application and takes less time consuming. Plates background and character's colour are used to determine candidate plate locations. Character segmentation is achieved with calculating column sum vector and artificial neural network (ANN) is used to recognise characters.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131258761","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
Clustering Based Automatic Segmentation of Liver 基于聚类的肝脏自动分割
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298748
A. Kocaoğlu, M. A. Selver, G.K. Demir, C. Guzelis
{"title":"Clustering Based Automatic Segmentation of Liver","authors":"A. Kocaoğlu, M. A. Selver, G.K. Demir, C. Guzelis","doi":"10.1109/SIU.2007.4298748","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298748","url":null,"abstract":"Identifying the liver region, calculation of the liver volume and determination of the vessel structure from abdominal computed tomography datasets are some of the essential steps in visualization prior to the hepatic surgery. Because of the high number of slices, manual segmentation of the liver is time consuming, tedious and depends on the experience. On the other hand, the automatic segmentation of the liver is very difficult task because of the gray level similarities of adjacent organs, injection of contrast media and partial volume effect problems. In this paper, we propose an algorithm that can handle these problems. Developed algorithm involves preprocessing, classification and post-processing stages. The proposed method is applied to 17 donor datasets and its performance is evaluated by area error rate calculations.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133439416","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
Pilot-aided Packet Synchronization and Single-Tone Parameter Estimation on an FPGA Platform 基于FPGA平台的导频辅助分组同步和单音参数估计
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298719
Mehmet Vural Omilr Ozel, M. Vural, A. Yilmaz
{"title":"Pilot-aided Packet Synchronization and Single-Tone Parameter Estimation on an FPGA Platform","authors":"Mehmet Vural Omilr Ozel, M. Vural, A. Yilmaz","doi":"10.1109/SIU.2007.4298719","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298719","url":null,"abstract":"In this paper, an FPGA implementation in which packet synchronization is performed by transmitting pilot sequences will be explained. In addition, in order to recover the frequency offset between the frequencies of oscillators at the transmitter and the receiver, a PLL like structure is proposed.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133489264","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 Code Design Criterion for Linear Dispersive Space-Time Block Codes 一种新的线性色散空时分组码设计准则
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298621
S. Kahraman, M. Çelebi
{"title":"A New Code Design Criterion for Linear Dispersive Space-Time Block Codes","authors":"S. Kahraman, M. Çelebi","doi":"10.1109/SIU.2007.4298621","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298621","url":null,"abstract":"In this study, we present a new code design criterion for space-time block codes. Using the proposed criterion, it is possible to determine linear dispersive space-time block codes that are able to work in high rates such as R = 8 or 16 bit/channel use. These new codes differ from previously proposed linear dispersed codes by the simplicity of the transmitter design, in that, every antenna transmits strictly from a QAM constellation. Furthermore, the criterion aims to maximize the channel capacity by the help of crucial equation of number of symbols = number of channel uses X min(number of transmit antennas.number of receive antennas) and to minimize the bit-error probability at the same time. The minimization of symbol-error probability is achieved by the minimization of bit-error probability. We also produced some simulation results for comparison of the performances of various linear dispersive codes to strengthen our claims.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132337105","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
A Fast Hough Transform Approximation and Its Application for Barcode Localization 一种快速霍夫变换逼近及其在条形码定位中的应用
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298852
M. Safran, R. Oktem
{"title":"A Fast Hough Transform Approximation and Its Application for Barcode Localization","authors":"M. Safran, R. Oktem","doi":"10.1109/SIU.2007.4298852","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298852","url":null,"abstract":"This paper addresses barcode localization in images acquired by wireless cameras. For this purpose, a fast Hough transform approximation by use of a sliding mask is developed. The approximation decomposes the lines at different orientations into distinct bitplanes. Barcode localization is achieved by considering the high density locations in the bitplanes via morphology and profiling. The time complexity of the proposed approximation is lower than the previously proposed fast Hough transform, though it achieves the equal performance in localization of barcodes.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134270515","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
Towards Increasing the Robustness of Image Watermarking Scheme Against Histogram Equalization Attack 提高图像水印方案抗直方图均衡化攻击的鲁棒性
2007 IEEE 15th Signal Processing and Communications Applications Pub Date : 2007-06-11 DOI: 10.1109/SIU.2007.4298813
V. Saxena, J. Gupta
{"title":"Towards Increasing the Robustness of Image Watermarking Scheme Against Histogram Equalization Attack","authors":"V. Saxena, J. Gupta","doi":"10.1109/SIU.2007.4298813","DOIUrl":"https://doi.org/10.1109/SIU.2007.4298813","url":null,"abstract":"Image watermarking with both insensible detection and high robustness capabilities is still a challenging problem for copyright protection up to now. Transformed domain has been found more suitable to hide the watermark data. For watermark embedding, transformed domain based watermarking schemes are quite robust against those attacks which anyhow do not have large impact on perceptual quality like JPEG compression. This paper explores an opportunity to improve the robustness of transformed domain based watermarking schemes by preprocessing the image. This attempt is to find whether we can make our images strong enough against such attacks in advance. We are considering histogram equalization attack that has impact on perceptual quality.","PeriodicalId":315147,"journal":{"name":"2007 IEEE 15th Signal Processing and Communications Applications","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134472883","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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