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2009 IEEE 17th Signal Processing and Communications Applications Conference最新文献

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Stereo vision based real-time obstacle distance and dimension estimation using look-up table 基于立体视觉的实时障碍物距离和尺寸估计
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136476
Emre Ozgunduz, M. Karsligil, Tulin Senturk
{"title":"Stereo vision based real-time obstacle distance and dimension estimation using look-up table","authors":"Emre Ozgunduz, M. Karsligil, Tulin Senturk","doi":"10.1109/SIU.2009.5136476","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136476","url":null,"abstract":"In this study, a system, which enables autonomous vehicles or mobile robots to detect and avoid obstacles in real-time using two active cameras in dynamic environments, was developed. System is tested in three different scenarios. In the first scenario, the platform which cameras are entagrated to is stable and the objects in the environment are mobile. In the second scenario, the platform which cameras are entagrated to is mobile and the objects in the environment are stable. In the third scenario, both the platform which cameras are entagrated to and the objects in the environment are mobile. In many studies, the distance between obstacles and camera is estimated using distance between cameras, focal length and disparity value. In these methods, the fault ratio, while estimating the distance betwwen cameras and objects, is high when especially the objects are far away from cameras and have low disparity values. In this project, a new approach is proposed in estimating the distance between camera and obstacles. In this approach, a look-up table consists stereo distance values matching with real world distance values is used. In the case of obtaining correct disparity map, the distance between the obstacle and the camera, and the dimensions of the obstacle are estimated correctly with the ±10 cm tolerance.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131007910","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 fast and automatically paired 2-dimensional direction-of-arrival estimation using arbitrary array geometry 一种基于任意阵列几何的快速、自动配对二维到达方向估计方法
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136456
T. Filik, T. E. Tuncer
{"title":"A fast and automatically paired 2-dimensional direction-of-arrival estimation using arbitrary array geometry","authors":"T. Filik, T. E. Tuncer","doi":"10.1109/SIU.2009.5136456","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136456","url":null,"abstract":"A new approach is proposed for two-dimensional (2-D) direction-of-arrival (DOA) estimation with arbitrary array geometries, which is based on array interpolation. The method provides automatically paired source azimuth and elevation angle estimates. Furthermore it is possible to estimate D sources with D+1 sensor. 2-D array interpolation errors are minimized by using Wiener formulation. Proposed method is applied to the two planar arrays; uniform circular array (UCA) and uniform isotropic (IU) V-shaped array. It seen that the method can find closed form, automatically paired azimuth and elevation angles. Simulation results are presented verifying the efficacy of the method.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126695746","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
Content-based image retrieval in store catalogs 商店目录中基于内容的图像检索
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136519
S. Baysal, Mehmet Can Kurt, Gonca Aydogdu, Pelin Damcı, Iay Telmen, Pinar Duygulu
{"title":"Content-based image retrieval in store catalogs","authors":"S. Baysal, Mehmet Can Kurt, Gonca Aydogdu, Pelin Damcı, Iay Telmen, Pinar Duygulu","doi":"10.1109/SIU.2009.5136519","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136519","url":null,"abstract":"In this paper, an overview of an application, which aims to make significant improvements on access methods to the online shopping catalogs, is presented. In current online shopping sites, only browsing and semantic based retrieval are provided to the users. In this work, a system is constructed on content based retrieval methods in order to allow users to find a clothing item that they are searching within the online catalogs. The results have came out to be impressive when they are examined by the human eye. This work makes use of existing computer vision techniques and applies them to the area of clothing and shopping to provide users with a useful application.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126697512","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
Fourier Neural Networks for real-time harmonic analysis 傅里叶神经网络实时谐波分析
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136400
K. E. Germeç
{"title":"Fourier Neural Networks for real-time harmonic analysis","authors":"K. E. Germeç","doi":"10.1109/SIU.2009.5136400","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136400","url":null,"abstract":"Nowadays with the technological advances, real time determination of harmonic levels in power systems is a popular research topic. In this paper, to determine harmonics fast and accurately, a new method combining the advantages of Fourier Analysis (FA) and Artificial Neural Networks (ANN) is used. This structure can be defined as Fourier Artificial Neural Network (FANN). The mathematical expressions of the structure are presented in details. Performance of the method was tested with the signal applications containing harmonics and noise in the simulation environment. We found that the method gives faster or more accurate results compared to ANN and FA methods in real time applications.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123282454","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
Tracking music from media using reduced pitch class profile features 跟踪音乐从媒体使用减少音高类配置文件功能
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136410
Erdem Unal, A. Akin, A. Kanak, M. U. Dogan
{"title":"Tracking music from media using reduced pitch class profile features","authors":"Erdem Unal, A. Akin, A. Kanak, M. U. Dogan","doi":"10.1109/SIU.2009.5136410","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136410","url":null,"abstract":"In this paper, a system that robustly searches and matches a music input signal to a music collection database using a hash table that is constructed from n-grams of reduced tonal profile. Since the problem that is being studied requires high performance, efficiency and scalability, not only the retrieval accuracy should be high, but also the systems workload on the processing unit and the memory should be in acceptable ranges. With respect to other conventional features, the tonal profile features extracted in this work requires much less space. From the tonal features n-gram blocks are constructed and used in a look up table. Whenever the input signal satisfies some constraints, matching and retrieval are performed The results show that the computation performance and the retrieval accuracy is at promising levels.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126602862","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
Adaptive fusion of shape from shading and photometric stereo 自适应融合形状从阴影和光度立体
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136540
Mehmet Karaman, H. Ş. Bilge
{"title":"Adaptive fusion of shape from shading and photometric stereo","authors":"Mehmet Karaman, H. Ş. Bilge","doi":"10.1109/SIU.2009.5136540","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136540","url":null,"abstract":"So far, a lot of studies have been made in the areas of shape from shading (SFS) and photometric stereo. In these studies, different methods are usually applied separately. In some of these studies, different methods were combined to obtain better results. In this study, a new approach is proposed to combined adaptively the SFS and photometric stereo methods. The depth map obtained from the SFS approach is appropriate to bring out the details. In photometric stereo aproach, rough surface information is obtained better than the other approaches. In the proposed method, best features of both methods are combined in an appropriate manner. Errors in the depth map obtained from experimental studies were examined and it is seen that the proposed method works successfully.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116078603","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
High capacity image watermarking in the joint spatio-frequency domain 联合空频域高容量图像水印
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136387
M. Ozturk, A. Akan, Y. Çekiç
{"title":"High capacity image watermarking in the joint spatio-frequency domain","authors":"M. Ozturk, A. Akan, Y. Çekiç","doi":"10.1109/SIU.2009.5136387","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136387","url":null,"abstract":"Watermarking techniques are proposed as a solution to copyright protection of digital media files. Watermarking algorithms are mainly concentrated on spatial or spectral domains. In this work, a robust and high capacity watermarking method that is based on spatio-frequency (SF) representations is presented. We use the discrete evolutionary transform (DET) calculated by Gabor expansion to represent an image in the SF domain. A watermark is embedded onto selected coefficients in the joint SF domain. Hence by combining the advantages of spatial and spectral domain watermarking methods, a robust, invisible, secure and high capacity watermarking method is presented.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116241224","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 fast method for the Common Vector Approach 公共向量法的一种快速方法
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136427
Mehmet Koç, A. Barkana
{"title":"A fast method for the Common Vector Approach","authors":"Mehmet Koç, A. Barkana","doi":"10.1109/SIU.2009.5136427","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136427","url":null,"abstract":"In this paper a new method is proposed to perform the Common Vector Approach(CVA). While CVA performs the classification with respect to the distance between vectors, the new method performs the classification with respect to the scalars. In experimental work, AR face database is used. Method performs the classification approximately 2 times faster than the classical calculations in AR face database.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"79 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116273797","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
Time-frequency analysis of snoring sounds in patients with simple snoring and OSAS 单纯性打鼾合并阻塞性睡眠呼吸暂停症患者打鼾声的时频分析
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136390
M. Tagluk, M. Akin, Necmettin Sezgin
{"title":"Time-frequency analysis of snoring sounds in patients with simple snoring and OSAS","authors":"M. Tagluk, M. Akin, Necmettin Sezgin","doi":"10.1109/SIU.2009.5136390","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136390","url":null,"abstract":"In recent years variety of studies has been conducted towards the identification of correlation between Obstructive Sleep Apnea Syndrome (OSAS) and snoring. The features detected from time and frequency domain analysis of snores showed the differences between simple and OSAS patients. In this study the total episodes of 1500 snore records taken from 7 simple and 14 OSAS patients were evaluated through time-frequency analysis. From the time-frequency analysis the differences, particularly from the spectral bandwidth point of view, between the two groups were identified, and using this data the method was suggested as a cost effective and simple technique to be widely used in detection of OSAS from simple patients.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121881372","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 systematic design procedure for floating-gate MOS based class-AB Log-domain filters 基于浮栅MOS的ab类对数域滤波器的系统设计
2009 IEEE 17th Signal Processing and Communications Applications Conference Pub Date : 2009-04-09 DOI: 10.1109/SIU.2009.5136534
E. Farshidi, Navid Alaei-sheini
{"title":"A systematic design procedure for floating-gate MOS based class-AB Log-domain filters","authors":"E. Farshidi, Navid Alaei-sheini","doi":"10.1109/SIU.2009.5136534","DOIUrl":"https://doi.org/10.1109/SIU.2009.5136534","url":null,"abstract":"In his paper a new approach for designing of class-AB current-mode log-domain filters based on nonlinear transconductance is presented. For implementation of the nonlinear transconductance, FG-MOS transistors that operate in weak inversion region are employed. The proposed nonlinear transconductance-capacitor (Gm-C) structure for filters is derived from its corresponding conventional transconductance-capacitor (gm-C) in a systematic way. Therefore, this synthesis is independent of system size, regular, general and with a simple topology. Also, as the filters are designed based on the transistors working in weak-inversion they feature, low supply voltage, low power consumption, immune from body effect and with low circuit complexity. The simulation results by HSPICE show the validity of the proposed technique.","PeriodicalId":219938,"journal":{"name":"2009 IEEE 17th Signal Processing and Communications Applications Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127825112","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
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