2013 IEEE Global Conference on Signal and Information Processing最新文献_第7页

Critically-sampled perfect-reconstruction spline-wavelet filterbanks for graph signals 图信号的临界采样完美重构样条小波滤波器组

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736918

Venkatesan N. Ekambaram, G. Fanti, B. Ayazifar, K. Ramchandran

引用次数: 28

Designing a clock cleaner with an on-demand digital sigma-delta modulator 设计一个带按需数字σ - δ调制器的时钟清洁器

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736980

Leung Kin Chiu, P. Kavanagh

引用次数: 1

Micromachined probes for on-wafer measurement of millimeter- and submillimeter-wave devices and components 用于毫米波和亚毫米波器件和组件的片上测量的微机械探头

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736989

R. Weikle, N. S. Barker, A. Lichtenberger, M. Bauwens

{"title":"Micromachined probes for on-wafer measurement of millimeter- and submillimeter-wave devices and components","authors":"R. Weikle, N. S. Barker, A. Lichtenberger, M. Bauwens","doi":"10.1109/GlobalSIP.2013.6736989","DOIUrl":"https://doi.org/10.1109/GlobalSIP.2013.6736989","url":null,"abstract":"Terahertz components and devices are typically interfaced with measurement instrumentation and characterized using fixtures equipped with waveguide flanges. Because such fixtures are known to introduce significant uncertainty and error in measurement, it is preferable to characterize such devices in-situ, where the device under test can be measured on-wafer, prior to dicing and separately from the circuit housing to which it is ultimately affixed. This is common practice in the RF and millimeter-wave region using probe stations equipped with coplanar launchers. Commercial coplanar waveguide probes have generally been available to the WR-2.2 band (325-500 GHz) but few options currently exist for on-wafer measurements above these frequencies. This paper describes recent work at the University of Virginia and Dominion Microprobes, Inc. to extend on-wafer measurement capabilities to terahertz frequencies through the design and implementation of coplanar probes based on silicon micromachining. At present micromachined on-wafer probes operating to WR1.2 (600 to 900 GHz) have been demonstrated and exhibit typical insertion losses lower than 7 dB with return loss of 15 dB or greater over a full waveguide band.","PeriodicalId":311464,"journal":{"name":"2013 IEEE Global Conference on Signal and Information Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131876406","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

Workload analysis and efficient OpenCL-based implementation of SIFT algorithm on a smartphone 基于opencl的SIFT算法在智能手机上的工作负载分析和高效实现

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6737002

Guohui Wang, Blaine Rister, Joseph R. Cavallaro

{"title":"Workload analysis and efficient OpenCL-based implementation of SIFT algorithm on a smartphone","authors":"Guohui Wang, Blaine Rister, Joseph R. Cavallaro","doi":"10.1109/GlobalSIP.2013.6737002","DOIUrl":"https://doi.org/10.1109/GlobalSIP.2013.6737002","url":null,"abstract":"Feature detection and extraction are essential in computer vision applications such as image matching and object recognition. The Scale-Invariant Feature Transform (SIFT) algorithm is one of the most robust approaches to detect and extract distinctive invariant features from images. However, high computational complexity makes it difficult to apply the SIFT algorithm to mobile applications. Recent developments in mobile processors have enabled heterogeneous computing on mobile devices, such as smartphones and tablets. In this paper, we present an OpenCL-based implementation of the SIFT algorithm on a smartphone, taking advantage of the mobile GPU. We carefully analyze the SIFT workloads and identify the parallelism. We implemented major steps of the SIFT algorithm using both serial C++ code and OpenCL kernels targeting mobile processors, to compare the performance of different workflows. Based on the profiling results, we partition the SIFT algorithm between the CPU and GPU in a way that best exploits the parallelism and minimizes the buffer transferring time to achieve better performance. The experimental results show that we are able to achieve 8.5 FPS for keypoints detection and 19 FPS for descriptor generation without reducing the number and the quality of the keypoints. Moreover, the heterogeneous implementation can reduce energy consumption by 41% compared to an optimized CPU-only implementation.","PeriodicalId":311464,"journal":{"name":"2013 IEEE Global Conference on Signal and Information Processing","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134302509","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: 46

Symmetric Nash equilibrium in a secondary spectrum market 二级频谱市场中的对称纳什均衡

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6737096

Shang-Pin Sheng, M. Liu

引用次数: 1

Node removal vulnerability of the largest component of a network 网络中最大组成部分的节点移除漏洞

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736946

Pin-Yu Chen, A. Hero

引用次数: 24

Optimal resource allocation for energy harvesting two-way relay systems with channel uncertainty 信道不确定的能量采集双向中继系统资源优化分配

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736886

Imtiaz Ahmed, A. Ikhlef, D. W. K. Ng, R. Schober

引用次数: 18

Inference of functional connectivity in Neurosciences via Hawkes processes 霍克斯过程对神经科学中功能连通性的推断

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GLOBALSIP.2013.6736879

P. Reynaud-Bouret, V. Rivoirard, Christine Tuleau-Malot

引用次数: 96

Efficient reconfigurable scheme for the recovery of sub-Nyquist sampled sparse multi-band signals 一种亚奈奎斯特采样稀疏多带信号恢复的高效可重构方案

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6737146

A. K. M. Pillai, H. Johansson

引用次数: 4

Networked optimization with adaptive communication 网络优化与自适应通信

2013 IEEE Global Conference on Signal and Information Processing Pub Date : 2013-12-01 DOI: 10.1109/GlobalSIP.2013.6736944

Konstantinos I. Tsianos, Sean F. Lawlor, J. Yu, M. Rabbat

引用次数: 19