2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)最新文献_第3页

Linguistic descriptors in face recognition: A literature survey and the perspectives of future development 人脸识别中的语言描述符:文献综述及未来发展展望

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-12-28 DOI: 10.1109/SPA.2015.7365141

Paweł Karczmarek, Adam Kiersztyn, Przemyslaw Rutka, W. Pedrycz

引用次数: 15

A centerline-based algorithm for estimation of blood vessels radii from 3D raster images 基于中心线的三维光栅图像血管半径估计算法

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-12-28 DOI: 10.1109/SPA.2015.7365110

J. Blumenfeld, M. Kociński, A. Materka

{"title":"A centerline-based algorithm for estimation of blood vessels radii from 3D raster images","authors":"J. Blumenfeld, M. Kociński, A. Materka","doi":"10.1109/SPA.2015.7365110","DOIUrl":"https://doi.org/10.1109/SPA.2015.7365110","url":null,"abstract":"Two approaches to Hessian-based estimation of tubular blood-vessel radius from 3D raster images are compared. In the proposed approach, binary skeleton is found for each tubular vessel-tree branch by thresholding the Hessian-derived vesselness image. Coordinates of the binary skeleton are approximated with smooth 3D spline functions. Their derivatives with respect to arc length give local tangent vectors, and thus planes normal to the vessel centerline. A proposed image intensity profile model is then least-squares fitted to the vessel cross-section by those planes, at each skeleton point. The circular vessel local radius is one of the model parameters. In the reference method, the vessel centerline direction is defined by the local Hessian eigenvector corresponding to the smallest eigenvalue. The radius is estimated using a square root of the vessel cross-section area (as obtained by an adaptive thresholding), divided by π. The impact of Frangi Hessian filter parameters and scale selection on the methods' performance is examined. Higher accuracy, precision and robustness to image noise and artifacts is demonstrated for the proposed method. Example of the method suitability for modeling of brain vasculature magnetic resonance images is also presented in this paper.","PeriodicalId":423880,"journal":{"name":"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128985543","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

Pedestrian detection in low resolution night vision images 低分辨率夜视图像中的行人检测

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-12-28 DOI: 10.1109/SPA.2015.7365157

P. Pawlowski, Karol Piniarski, A. Dabrowski

引用次数: 21

An enhancement of software metrics as failure predictors 作为故障预测器的软件度量的增强

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-12-28 DOI: 10.1109/SPA.2015.7365107

Nader Alexan, Hisham Othman, P. Montag

引用次数: 2

Thermal-time constant imaging in cold-stress screening 冷应力筛选中的热时间常数成像

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365134

M. Strąkowska, R. Strąkowski, M. Strzelecki

引用次数: 4

Efficient vectorized architecture for Feedback Delay Network reverberator with policy based design 基于策略设计的反馈延迟网络混响器的高效矢量化结构

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365146

Ireneusz Gawlik, Tomasz Pedzimaz, S. Palka, B. Ziółko

引用次数: 2

Application of the projective geometry in the density mapping based on CCTV monitoring 投影几何在基于CCTV监控的密度映射中的应用

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365156

Agata Chmielewska, Marianna Parzych, T. Marciniak, A. Dabrowski, Przemyslaw Walkowiak

引用次数: 3

A hybrid relaying protocol for wireless cooperative networks based on the log-likelihood ratio 一种基于对数似然比的无线协作网络混合中继协议

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365147

Wassim Alexan, Ahmed El Mahdy

{"title":"A hybrid relaying protocol for wireless cooperative networks based on the log-likelihood ratio","authors":"Wassim Alexan, Ahmed El Mahdy","doi":"10.1109/SPA.2015.7365147","DOIUrl":"https://doi.org/10.1109/SPA.2015.7365147","url":null,"abstract":"Employing different relaying protocols at a relay node in a wireless cooperative network could improve the overall system performance. The choice of amplify-and-forward (AF) or decode-and-forward (DF) depends on the available set of conditions pertaining to each relay node in the system. In this paper, a hybrid relaying protocol is proposed for systems employing BPSK modulation in Rayleigh fading channels. The hybrid protocol in use exploits the best DF has to offer but at a lower complexity, closer to that of the AF. Based on the log-likelihood ratio (LLR) value of the received signal at a relay node, the node decides whether it should follow the AF or the DF relaying protocols or to remain inactive. The reliability of the LLR allows for better hard-decoding due to its higher sensitivity nature. Maximal ratio combining (MRC) is carried out at the destination node to detect all the received signals. The proposed relaying protocol is tested for wireless systems where the relay nodes are symmetrically distributed or randomly distributed. The system performance is measured in terms of the bit error rate and outage probability curves, comparing it with other hybrid relaying systems.","PeriodicalId":423880,"journal":{"name":"2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114421644","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

Complexity reduced turbo differential decoding based on layered LDPC decoding 基于分层LDPC译码的降低复杂度turbo差分译码

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365145

C. Cabirol, W. Sauer-Greff, A. Bisplinghoff, R. Urbansky

引用次数: 1

Relations between features for automatic recognition of abnormal cases in emergency telephone call systems 紧急呼叫系统异常情况自动识别中特征间的关系

2015 Signal Processing: Algorithms, Architectures, Arrangements, and Applications (SPA) Pub Date : 2015-09-01 DOI: 10.1109/SPA.2015.7365158

J. Balcerek, P. Pawlowski, A. Dabrowski, A. Konieczka

引用次数: 3