Now showing items 247-266 of 1854

    • Classification of hyperspectral imagery with neural networks: comparison to conventional tools 

      Merényi, Erzsébet; Farrand, William H.; Taranik, James V.; Minor, Timothy B. (2014)
      Efficient exploitation of hyperspectral imagery is of great importance in remote sensing. Artificial intelligence approaches have been receiving favorable reviews for classification of hyperspectral data because the ...
    • Classification Techniques for Undersampled Electromyography and Electrocardiography 

      Wilhelm, Keith (2012-10-01)
      Electrophysiological signals including electrocardiography (ECG) and electromyography (EMG) are widely used in clinical environments for monitoring of patients and for diagnosis of conditions including cardiac and neuromuscular ...
    • Client Beamforming for Rate Scalability of MU-MIMO Networks 

      Yu, Hang (2015-04-24)
      The multi-user MIMO (MU-MIMO) technology allows an AP with multiple antennas to simultaneously serve multiple clients to improve the network capacity. To achieve this, the AP leverages zero-forcing beamforming (ZFBF) to ...
    • Clinical Applications of a Human Cardiovascular-Respiratory System Model: Studying Ventricular Mechanics in Disease and Treatment 

      Ramachandran, Deepa (2012)
      Large-scale modeling allows for a broad mechanistic view of a cardiopulmonary disease, often beyond what can be observed clinically. Our group has developed a large-scale model of the human cardiovascular-respiratory system ...
    • Clinical utility of breath ammonia for evaluation of ammonia physiology in healthy and cirrhotic adults 

      Spacek, Lisa A.; Mudalel, Matthew; Tittel, Frank; Risby, Terence H.; Solga, Steven F. (2015)
      Blood ammonia is routinely used in clinical settings to assess systemic ammonia in hepatic encephalopathy and urea cycle disorders. Despite its drawbacks, blood measurement is often used as a comparator in breath studies ...
    • CMOS Processor Element For A Fault-Tolerant SVD Array 

      Kota, Kishore; Cavallaro, Joseph R. (1993-07-20)
      This paper describes the VLSI implementation of a CORDIC based processor element for use in a fault-reconfigurable systolic array to compute the Singular Value Decomposition (SVD) of a matrix. The chip implements a time ...
    • Code design and multiuser detection for code division multiple access systems with continuous phase modulation 

      Papasakellariou, Aristides (1996)
      The proliferation of wireless communications services combined with the limited spectrum availability have placed the bandwidth utilization as a major performance measure. Consequently, the bandwidth allocation technique ...
    • Code design for multiple-antenna systems 

      Memarzadeh, Mahsa (2001)
      We propose a systematic method for the design of space-time codes for AWGN slowly and fast Rayleigh fading channels. This can be accomplished by adopting a concatenated space-time code structure, where an orthogonal transmit ...
    • Code Design for Multiple-Antenna Systems 

      Memarzadeh, Mahsa (2001-04-20)
      We propose a systematic method for the design of space-time codes for AWGN slowly and fast Rayleigh fading channels. This can be accomplished by adopting a concatenated space-time code structure, where an orthogonal transmit ...
    • Code design for the relay channel 

      Chakrabarti, Arnab (2007)
      The design of wireless communication networks is based on the premise that networks are collections of reliable point-to-point links between communicating nodes. Such a communication model, although simple, is inefficient ...
    • Code Transformations to Improve Memory Parallelism 

      Pai, Vijay S.; Adve, Sarita V. (1999-11-20)
      None
    • Code Transformations to Improve Memory Parallelism 

      Pai, Vijay S.; Adve, Sarita V. (2000-05-20)
      Current microprocessors incorporate techniques to exploit instruction-level parallelism (ILP). However, previous work has shown that these ILP techniques are less effective in removing memory stall time than CPU time, ...
    • Coding for Phase Change Memory Performance Optimization 

      Mirhoseini, Azalia (2012-09-05)
      Over the past several decades, memory technologies have exploited continual scaling of CMOS to drastically improve performance and cost. Unfortunately, charge-based memories become unreliable beyond 20 nm feature sizes. ...
    • Coding Theoretic Approach to Image Segmentation 

      Ndili, Unoma (2001-05-20)
      Using a coding theoretic approach, we achieve unsupervised image segmentation by implementing Rissanen's concept of Minimum Description Length for estimating piecewise homogeneous regions in images. MDL offers a mathematical ...
    • Coding Theoretic Approach to Image Segmentation 

      Ndili, Unoma; Nowak, Robert David; Figueiredo, Mario (2001-10-20)
      In this paper, using a coding theoretic approach, we implement Rissanen's concept of minimum description length (MDL) for segmenting an image into piecewise homogeneous regions. Our image model is a Gaussian random field ...
    • Coding-spreading tradeoff for lattice codes 

      Khoshnevis, Ahmad (2001)
      A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
    • Coding-Spreading Tradeoff for Lattice Codes 

      Khoshnevis, Ahmad (2001-04-20)
      A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
    • Coherent Fano resonances in a plasmonic nanocluster enhance optical four-wave mixing 

      Zhang, Yu; Wen, Fangfang; Zhen, Yu-Rong; Nordlander, Peter; Halas, Naomi J. (2013)
      Plasmonic nanoclusters, an ordered assembly of coupled metallic nanoparticles, support unique spectral features known as Fano resonances due to the coupling between their subradiant and superradiant plasmon modes. Within ...
    • Coherent Image Processing using Quaternion Wavelets 

      Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2005-08-01)
      We develop a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant, tight frame representation whose coefficients sport a magnitude and three ...
    • Coherent Multiscale Image Processing using Quaternion Wavelets 

      Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2006-10-01)
      The quaternion wavelet transform (QWT) is a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant tight frame representation whose coefficients sport a magnitude and three phases: ...