Browsing ECE Publications by Title
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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 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 ... 
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. ... 
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 ... 
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) ... 
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 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
(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
(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
(19980501)This paper develops two new adaptive wavelet transforms based on the lifting scheme. The lifting construction exploits a spatialdomain, predictionerror interpretation of the wavelet transform and provides a powerful ... 
Adaptive Weighted Highpass Filters Using Multiscale Analysis
(19980701)In this paper, we propose a general framework for studying a class of weighted highpass filters. Our framework, based on a multiscale signal decomposition, allows us to study a wide class of filters and to assess the ... 
Adding Linguistic Constraints to Document Image Decoding: Comparing the Iterated Complete Path and Stack Algorithms
(20010120)Beginning with an observed document image and a model of how the image has been degraded, Document Image Decoding recognizes printed text by attempting to find a most probable path through a hypothesized Markov source. The ... 
Additive and Multiplicative Mixture Trees for Network Traffic Modeling
(20020501)Network traffic exhibits drastically different statistics, ranging from nearly Gaussian marginals and long range dependence at very large time scales to highly nonGaussian marginals and multifractal scaling on small scales. ... 
Adsorption of a Protein Monolayer via Hydrophobic Interactions Prevents Nanoparticle Aggregation under Harsh Environmental Conditions
(2013)We find that citratestabilized gold nanoparticles aggregate and precipitate in saline solutions below the NaCl concentration of many bodily fluids and blood plasma. Our experiments indicate that this is due to complexation ... 
Advanced MIMOCDMA Receiver for Interference Suppression: Algorithms, SystemonChip Architectures and Design Methodology
(20050501)MIMO (Multiple Input Multiple Output) technology is proposed in CDMA systems for much higher rate packet services. The receiver architecture is essential for the mobile devices to support high speed multimedia service. ... 
Advanced Techniques for NextGeneration Wireless Systems
(19990820)In order to meet the demands of nextgeneration wireless systems, which will be required to support multirate multimedia at high data rates, it is necessary to employ advanced algorithms and techniques that enable the ... 
An Algorithm for Extraction of More than One Optimal Linear Feature from Several Gaussian Pattern Classes
(19760420)Two algorithms have been developed at Rice University for optimal linear feature extraction based on the minimization risk (probability) of misclassification under the assumption that the class conditional probability ... 
An Algorithm for Optimal Single Linear Feature Extraction from Several Gaussian Pattern Classes
(19751120)A computational algorithm is presented for the extraction of an optimal single linear feature from several Gaussian pattern classes. The algorithm minimizes the increase in the probability of misclassification in the ... 
An Algorithm to Factor Polynomial Matrices
(19790401)A new algorithm for factoring polynomial matrices, based on concept of elementary factors, is presented in this report. This algorithm does not use numerically unsatisfactory Euclidean type operations. 
Algorithms and Architectures for Channel Estimation in Wireless CDMA Communication Systems
(19981220)Wireless cellular communication is witnessing a rapid growth in markets, technology, and range of services. An attractive approach for economical, spectrally efficient, and high quality digital cellular and personal ... 
Algorithms for Optimal Dynamic Assignment in Distributed Processing Systems
(19790820)The problem of determining an optimal dynamic assignment of a modular program in a loosely coupled distributed processing system is considered. An optimal dynamic assignment minimizes the sum of all module execution costs, ... 
Algorithms for Optimal Numerical Quadrature Based on Signal Class Models
(19791101)A framework is presented for constructing various types of numerical quadrature algorithms which take into account the apriori known or estimated properties of the signal being processed. This is done by appropriately ... 
Alloptical CDMA with bipolar codes
(19950320)A method for the transmission and detection of bipolar sequences in a unipolar system is presented. It allows alloptical implementation, in noncoherent optical CDMA systems, of the bipolar codes that have been developed ... 
Allpass Filter Design and Applications
(19950115)The Problem of allpass filter design for phase approximation and equalization in the Chebyshev sense is solved by using a generalized Remez algorithm. Convergence to the unique optimum is guaranteed and is achieved rapidly ... 
Aluminum Nanocrystals
(2015)We demonstrate the facile synthesis of high purity aluminum nanocrystals over a range of controlled sizes from 70 to 220 nm diameter with size control achieved through a simple modification of solvent ratios in the reaction ... 
Ambipolar electronics
(20100302)Ambipolar conduction, characterized by a superposition of electron and hole currents, has been observed in many nextgeneration devices including carbon nanotube, graphene, silicon nanowire, and organic transistors. ... 
Analog Computer Simulation of Maximum Expiratory Flow Limitation
(19750120)This paper extends previous modeling work in our laboratory on the simulation of the panting maneuver executed in a body plethysmograph [Golden, et al. (1973)] to the simulation of a wider range of pulmonary function tests ... 
Analysis of DecisionFeedback Based Broadband OFDM Systems
(20051101)In wireless communications, about 25% of the bandwidth is dedicated to training symbols for channel estimation. By using a semiblind approach, the training sequence length can be reduced while improving performance. The ... 
Analysis of Multiscale Texture Segmentation using WaveletDomain Hidden Markov Trees
(19991001)This paper describes a technique for estimating the KullbackLeibler (KL) distance between two Hidden Markov Models (HMMs), and for measuring the quality of the estimator. It also provides some results based on applying ... 
Analysis of noise reduction in redundant expansions under distributed processing requirements
(20050301)We considered signal reconstruction with redundant expansions under distributed processing in noisy environments. Redundant expansions have the ability to reduce noise corrupting the coefficients, but distributed processing ... 
Analysis of Robots for Hazardous Environments
(19970101)Reliability analysis of fault tolerant systems often ignores the small probability that a failure might not be detected or, if detected, may not be properly handled. The probability that the failure is detected and properly ... 
Analysis of the DCS onestage Greedy Algorothm for Common Sparse Supports
(20051101)Analysis of the DCS onestage Greedy Algorothm for Common Sparse Supports 
Analysis of Wavelet domain Wiener Filters
(19981001)We investigate Wiener filtering of wavelet coefficients for signal denoising. Empirically designed waveletdomain Wiener filters outperform many other denoising algorithms based on wavelet thresholding. However, up to now, ... 

Analyzing Dynamics and Stimulus Feature Dependence in the Information Processing of Crayfish Sustaining Fibers
(20020420)The sustaining fiber (SF) stage of the crayfish visual system converts analog stimulus representations to spike train signals. A recent theory quantifies a system's information processing capabilities and relates to ... 
Analyzing the robustness of redundant population codes in sensory and feature extraction systems
(20050701)Sensorineural systems often use groups of redundant neurons to represent stimulus information both during transduction and population coding of features. This redundancy makes the system more robust to corruption in the ... 
Antenna Arrays for Wireless CDMA Communication Systems
(19970520)The estimation of code delays along with amplitudes and phases of different users constitutes the first stage in the demodulation process in a CDMA communication system. The delay estimation stage is termed the acquisition ... 
Antenna Packing in Low Power Systems: Communication Limits and Array Design
(20050101)In this paper, we study design of transceiver antenna arrays and its impact on spectral efficiency of lowpower systems. Our primary motivation is construction of practical and portable multiantenna configurations with a ... 
APL Programs for Polynomial Matrix Manipulations
(19791201)This report contains descriptions and listings of APL programs. 
APL Programs for Singular Value Decomposition and Generalized Eigenvalue Problems
(19790920)This report contains descriptions and listings of APL functions for singular value decomposition and solution of the generalized eigenvalue problem. 
APL Programs for the Solution of RPIS
(19780820)This report contains the documentaiton for twelve APL functions written to facilitate the solution of the Regulator Problem with Internal Stability (RPIS). These new functions draw on the library of APL functions assembled ... 
Application of a Frequency Domain Prony Method to Wide Bandwidth Radar Signature Classification
(19790920)A frequency domain Prony approach is presented for extracting features of return signals from targets illuminated by wide bandwidth (short pulse) radar. Theoretical details pertaining to this approach are described in a ... 
ApplicationSpecific Accelerators for Communications
(20100101)For computationintensive digital signal processing algorithms, complexity is exceeding the processing capabilities of generalpurpose digital signal processors (DSPs). In some of these applications, DSP hardware accelerators ... 
Applications of Adaptive Time Frequency Representations to Underwater Acoustic Signal Processing
(19911101)The authors describe the application of an adaptive optimal kernel (AOK) timefrequency representation to the processing of underwater acoustic data. The optimal kernel is a signaldependent radially Gaussian function. ... 
Applications of Terahertz Imaging
(19980801)The recent advances involving imaging with subpicosecond terahertz pulses have opened up a wide range of possibilities in the applications of farinfrared technology. For the first time, a commercially viable terahertz ... 
An Approach to Capacity Analysis of Coarsely Coordinated Low Power Multiple Access Systems
(20040701)We consider multiaccess problem in low power systems, where we allow each user to select its own data rate and transmit power locally and independently from other users. Here, every user has a set of low power codebooks, ... 
Approximate continuous wavelet transform with an application to noise reduction
(19980520)We describe a generalized scaleredundant wavelet transform which approximates a dense sampling of the continuous wavelet transform (CWT) in both time and scale. The dyadic scaling requirement of the usual wavelet ... 
Approximate Matrix Inversion for HighThroughput Data Detection in LargeScale MIMO Uplink
(201305)The high processing complexity of data detection in the largescale multipleinput multipleoutput (MIMO) uplink necessitates highthroughput VLSI implementations. In this paper, we propose—to the best of our knowledge—first ... 
Approximation and Compression of Piecewise Smooth Images Using a Wavelet/Wedgelet Geometric Model
(20030901)Inherent to photographlike images are two types of structures: large smooth regions and geometrically smooth edge contours separating those regions. Over the past years, efficient representations and algorithms have been ...