Browsing Electrical and Computer Engineering by Title
Now showing items 160 of 1507

The 2nuSVM: A CostSensitive Extension of the nuSVM
(20051201)Standard classification algorithms aim to minimize the probability of making an incorrect classification. In many important applications, however, some kinds of errors are more important than others. In this report we ... 
3D Local Radon Power Spectra for Seismic Attribute Extraction
(19980115)In this paper we discuss a method for volume attribute extraction that is based on a new type of local Radon power spectrum. The new algorithm results in robust and geologically meaningful volume attributes, such as ... 
3D segmentation and volume estimation of radiologic images by a novel, feature driven, region growing technique
(1992)Magnetic Resonance (MR) imaging is a 3D, multislice, radiological technique that acquires multiple intensities corresponding to each voxel. The transverse relaxation time, T$\sb1$, and the axial relaxation time, T$\sb2$, ... 
3D Geometry Coding using Mixture Models and the Estimation Quantization Algorithm
(20020901)3D surfaces are used in applications such as animations, 3D object modeling and visualization. The geometries of such surfaces are often approximated using polygonal meshes. This thesis aims to compress 3D geometry meshes ... 
3D microfabrication of singlewall carbon nanotube/polymer composites by twophoton polymerization lithography
(2013)We present a method to develop singlewall carbon nanotube (SWCNT)/polymer composites into arbitrary threedimensional micro/nano structures. Our approach, based on twophoton polymerization lithography, allows one to ... 
802.11b Operating in a Mobile Channel: Performance and Challenges
(20030920)In the past, the worlds of wireless voice and data transmission have been largely disjoint. Voice traffic has been carried over circuitswitched cellular links, and data has been largely restricted to packetswitched ... 
A behavioral approach to positive interpolation
(2005)We study interpolation by positive functions from a behavioural point of view. In particular, by considering the notion of mirror image data, the interpolation problem with passivity constraint is transformed into an ... 
A closedloop model of the ovine cardiovascular system
(2003)The conscious sheep is an important large animal model for the study of human cardiovascular and cardiopulmonary system. In this study we develop a closedloop mathematical model of its cardiovascular system. A distributed ... 
A communications and interaction model for intelligent cooperating robots
(1993)In complex robotic operating environments in which robots must cooperate in a flexible and eventdriven manner, a cooperative distributed environment for intelligent control is required. We develop a realistic technique ... 
A dual acoustooptic laser scanning microscope system for the study of dendritic integration: Design, construction, and preliminary results
(2003)Recent research has highlighted the vital role played by dendrites in effecting the computational properties of single neurons in the central nervous system (CNS). An ultraviolet (UV) acoustooptic laser scanning microscope ... 
A globally convergent algorithm for training multilayer perceptrons for data classification and interpolation
(1991)This thesis addresses the issue of applying a "globally" convergent optimization scheme to the training of multilayer perceptrons, a class of Artificial Neural Networks, for the detection and classification of signals in ... 
A hierarchical waveletbased framework for pattern analysis and synthesis
(2000)Despite their success in other areas of statistical signal processing, current waveletbased image models are inadequate for modeling patterns in images, due to the presence of unknown transformations inherent in most ... 
A HIGH RESOLUTION DATAADAPTIVE TIMEFREQUENCY REPRESENTATION
(1987)The shorttime Fourier transform and the Wigner distribution are the timefrequency representations that have received the most attention. The Wigner distribution has a number of desirable properties, but it introduces ... 
A hybrid relaying protocol for the parallelrelay network
(2010)Cooperation among radios in wireless networks has been shown to improve communication in several aspects. We analyze a wireless network which employs multiple parallel relay transceivers to assist in communication between ... 
A minimumcostneighbor multicast routing protocol for mobile wireless ad hoc networks
(2010)MiCoN (MinimumCost Neighbor) is a new ondemand multicast routing protocol for mobile wireless ad hoc networks. Multicast routing in MiCoN is based on a new multiroute unicast routing protocol for maintaining routes ... 
A model of sarcolemmal calcium(2+) currents and cytosolic calcium(2+) transients in a rat ventricular cell
(2000)We have developed a mathematical model of the Ltype Ca2+ current and cytosolic Ca2+ transient, which is based on data from wholecell voltage clamp experiments on rat ventricular myocytes. Modified GoldmanHodgkinKatz ... 
A NOVEL FRAMEWORK FOR SURFACE RECONSTRUCTION FROM 3DIMENSIONAL CONTOURS
(1986)In many applications, such as computer vision, medical imaging, scene forming, and motion animation, surface data is available in the form of twodimensional (2D) or threedimensional (3D) contours. Reconstruction of the ... 
A performance study of deployment factors in wireless mesh networks
(2007)This thesis presents a measurementparameterized performance study of deployment factors in wireless mesh networks using four performance metrics: client coverage area, backhaul tier connectivity, protocoldependent ... 
A phase sensitivity based method for prediction of modes of behavior in quadrupedal locomotion
(1996)The objective of this study is development of prediction methods for characterizing the electrical behavior of ring type central pattern generators (CPGs). A mathematical model of the prototypical bursting neuron R15 from ... 
A protocol class for stealing residual bandwidth in uncoordinated distributed wireless networks
(2010)The need for finding effective means of recycling spectrum is becoming increasingly apparent as the world becomes more crowded with wireless devices. While finding a policy solution to this problem will require years, ... 
A sample realization approach for optimization of code division multiple access systems
(1994)Efforts in performance analysis of Code Division Multiple Access (CDMA) systems have concentrated on obtaining asymptotic approximations and bounds for system error probabilities. As such, these cannot capture the sensitivities ... 
A storage architecture for dataintensive computing
(2010)The assimilation of computing into our daily lives is enabling the generation of data at unprecedented rates. In 2008, IDC estimated that the "digital universe" contained 486 exabytes of data [9]. The computing industry ... 
A study of opportunistic relaying MAC protocol
(2005)Recent studies have shown a considerable interest in the development of Medium Access and Control (MAC) protocols for multirate wireless networks. The approach of sending the packet to the farthest possible node along the ... 
A study of the photodissociation dynamics of dimethylzinc and the implications for the growth of zinc selenide films
(1993)The dynamics of the ArF photodissociation of DMZn (dimethylzinc) have been studied. The implications of the results for the growth of ZnSe thin films are discussed. Timeresolved absorption profiles of ground state Zn and ... 
A universal hidden Markov tree image model
(1999)Waveletdomain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint density of the wavelet coefficients ... 
A waveletbased approach to threedimensional confocal microscopy image reconstruction
(2004)An algorithm based on the Haar wavelet basis and implementing an expectation maximizationmaximum penalized likelihood estimator in 3D is shown to provide dramatic improvement over traditional stoppedEM algorithms in ... 
Accelerating Computer Vision Algorithms Using OpenCL Framework on Mobile Devices  A Case Study
(201306)Recently, generalpurpose computing on graphics processing units (GPGPU) has been enabled on mobile devices thanks to the emerging heterogeneous programming models such as OpenCL. The capability of GPGPU on mobile devices ... 
Achievable Diversity and Multiplexing in Multiple Antenna Systems with Quantized Power Control
(20050501)We consider a multiple antenna system with finite rate feedback, in which the quantized channel state information at the transmitter is used solely for temporal power control. We show that similar to systems without feedback, ... 
Achievable Rates for Arbitrary Network Topologies with â Cheapâ Nodes
(20030501)In this paper, we derive achievable rates for arbitrary network topologies consisting of â cheapâ nodes. A node is labeled â cheapâ if its radio can only operate in TDD mode when transmitting and receiving in the ... 
Achromatized endomicroscope objective for optical biopsy
(20130118)Currently, researchers and clinicians lack achromatized endomicroscope objectives that are as narrow as biopsy needles. We present a proofofconcept prototype that validates the optical design of an NA0.4 objective. ... 
Acoustooptic multiphoton laser scanning microscopy and multiphoton photon counting spectroscopy: Applications and implications for optical neurobiology
(2005)Multiphoton excitation of molecular probes has become an important tool in experimental neurobiology owing to the intrinsic optical sectioning and low light scattering it affords. Using molecular functional indicators, ... 
Active dielectric antenna on chip for spatial light modulation
(20121114)Integrated photonic resonators are widely used to manipulate light propagation in an evanescentlycoupled waveguide. While the evanescent coupling scheme works well for planar optical systems that are naturally waveguide ... 
Active learning and adaptive sampling for nonparametric inference
(2008)This thesis presents a general discussion of active learning and adaptive sampling. In many practical scenarios it is possible to use information gleaned from previous observations to focus the sampling process, in the ... 
Adaptive Fault Detection and Tolerance for Robots
(19940801)In existing robot fault detection schemes, sensed values of the joint status (position, velocity, etc.) are typically compared against expected or desired values, and if a given threshold is exceeded, a fault is inferred. ... 
Adaptive Iterative Reqeighted Least Squares Design of LP FIR Filters
(19990301)This paper presents an efficient adaptive algorithm for designing FIR digital filters that are efficient according to an Lp error criteria. The algorithm is an extension of Burrus' iterative reweighted leastsquares (IRLS) ... 
ADAPTIVE NONLINEAR IMAGE RESTORATION BY A MODIFIED KALMAN FILTERING APPROACH
(1980)An adaptive nonlinear Kalmantype filter is presented in this dissertation for the restoration of twodimensional images degraded by general image formation system degradations and additive white noise. A vector difference ... 
An Adaptive OptimalKernel TimeFrequency Representation
(19951001)Timefrequency representations with fixed windows or kernels figure prominently in many applications, but perform well only for limited classes of signals. Representations with signal dependent kernels can overcome this ... 
An Adaptive OrthogonalSeries Estimator for Probability Density Functions
(19780220)Given a sample set X1,...,XN of independent identically distributed realvalued random variables, each with the unknown probability density function f(â ¢), the problem considered is to estimate f from the sample set. The ... 
Adaptive Representation of JPEG 2000 Images Using Headerbased Processing
(20020920)To bridge the mismatch between the sizes of images and display devices, we present an efficient and automatic algorithm to create an adaptive image representation called SmartNail. Given a digital image and rectangular ... 
Adaptive Similarity Measures for Material Identification in Hyperspectral Imagery
(20130916)Remotelysensed hyperspectral imagery has become one the most advanced tools for analyzing the processes that shape the Earth and other planets. Effective, rapid analysis of highvolume, highdimensional hyperspectral image ... 
Adaptive Wavelet Transforms for Image Coding
(19971101)We introduce a new adaptive transform for waveletbased image coding. The lifting framework for wavelet construction motivates our analysis and provides new insight into the problem. Since the adaptive transform is nonlinear, ... 
Adaptive Wavelet Transforms for Image Coding
(19971101)We introduce a new adaptive transform for waveletbased image coding. The lifting framework for wavelet construction motivates our analysis and provides new insight into the problem. Since the adaptive transform is nonlinear, ... 
Adaptive Wavelet Transforms for Image Coding using Lifting
(19980301)Summary form only given. Image compression relies on efficient representations of images, and within smooth image regions, the wavelet transform provides such a representation. However, near edges, wavelet coefficients ... 
Adaptive Wavelet Transforms via Lifting
(19990115)This paper develops new algorithms for adapted multiscale analysis and signal adaptive wavelet transforms. We construct our adaptive transforms with the <i>lifting scheme</i>, which decomposes the wavelet transform into ... 
Adaptive Wavelet Transforms via Lifting
(19990501)This paper develops new algorithms for adapted multiscale analysis and signal adaptive wavelet transforms. We construct our adaptive transforms with the <i>lifting scheme</i>, which decomposes the wavelet transform into ... 
Adaptive wavelet transforms via lifting
(2000)Wavelet transforms have proven very useful for a variety of signal and image processing tasks. The wedgelet transform also shows promise for certain edgedominated images. However, in many applications we desire to introduce ...