Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Pattern recognition system"”.
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Self Designing Pattern Recognition System Employing Multistage Classification
Recently, pattern recognition/classification has received a considerable attention in diverse engineering fields such as biomedical imaging, speaker identification, fingerprint recognition, etc. In most of these applications, it is desirable to maintain the classification accuracy in the presence …
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A pattern recognition system for recognizing gender from silhouettes
Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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An investigation of a pattern recognition system to analyse and classify dried fruit
… image processing have enabled computer vision systems to become a viable alternative to human visual inspection in industrial applications. In this thesis a vision system that will analyse and classify dried fruit is investigated. In human visual inspection of dried fruit, the colour of the …
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An on-Line Image Pre-Processing Camera System for Pattern Recognition
A pattern recognition system has been developed which is capable of recognizing high contrast two-dimensional visual patterns and which is insensitive to the translation, rotation, and size of a pattern. The unique characteristics of the system are its speed, its low cost and the fact that it is …
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Automated visual inspection for the quality control of pad printing
… primarily with the research of a printer control system including machine vision. At present printing is manually controlled. Operator knowledge was gathered for use by an expert system to control the process. A novel local corner- matching algorithm was conceived to effect image segmentation, and …
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Hybrid Nanostructures for Artificial Machine Olfaction
… (TNT, TATP) at the ppb levels. The use of a pattern recognition system allowed discrimination between three analyte chemicals.</p>
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Recognition of aerospace acoustic sources using advanced pattern recognition techniques
An acoustic pattern recognition system has been developed to identify aerospace acoustic sources. The system is capable of classifying five different types of air and ground sources: jets, propeller planes, helicopters, trains, and wind turbines. The system consists of one microphone for data …
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Condition Classification in Underground Pipes Based on Acoustical Characteristics. Acoustical characteristics are used to classify the structural and operational conditions in underground pipes with advanced signal classification methods
… is concerned with the development and study of a pattern recognition system for siphon and sewer condition/defect analysis based on acoustic characteristics. Pattern recognition has been studied and used widely in many fields including: identification and authentication; medical diagnosis and …
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Development and analysis of hierarchical feedforward neural network systems for classification of motor neurone disease based on magnetic resonance spectra
… in this thesis presents the development of a pattern recognition system based on neural networks to correctly distinguish between motor neurone disease (MND) patients and controls when presented with a nuclear magnetic resonance (NMR) spectrum. The NMR spectra are pre-processed to obtain …
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Use of linear predictive features and pattern recognition techniques to develop a vector quantization based blind SNR estimation system
… this thesis a Vector Quantization (VQ) based pattern recognition system approach is applied to estimate the SNR of speech signals. Features for the VQ system are derived from the speech signals through linear predictive analysis. The system is trained and tested on a range of 0 to 30 dB SNR in …
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Adaptive techniques in signal processing and connectionist models
… to produce a generalised adaptive filter system which may be used to perform such tasks as pattern recognition. Firstly, the relevant background adaptive filter theory is discussed in Chapter 1 and methods and results which are important to the rest of the thesis are derived or referenced. …
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Highly-selective Chemiresistive Sensing and Analysis of Vapors Using Functionalized Nanotubes
… high yield. Seven carbon nanotube analogues were systematically considered and then chemically synthesized, from pristine single-walled nanotubes (SWNT's), for use as the main component of sensory units that was used for this study. The basic chemical structure of these functionalized nanotubes; …
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Using synthetic images to improve iris biometric performance
… emerged as one of the most reliable and accurate systems when dealing with cooperating subjects, however, challenges arise when attempting to minimize the amount of intrusion when examining subjects. Allowing for more flexibility in data capture settings will introduce differences in the iris …
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One-vector representations of stochastic signals for pattern recognition
When building a pattern recognition system, we primarily deal with stochastic signals such as speech, image, video, and so forth. Often, a stochastic signal is ideally of a one-vector form so that it appears as a single data point in a possibly high-dimensional representational space, as the …
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New approaches to open problems in gene expression microarray data
… but often overlooked, option of any practical pattern recognition system. We focused on Tumor-Grade-three-class problem, so we have 67 samples of grade I (G1), 54 samples of grade 3 (G3) and 100 samples of grade 2 (G2). The goal is to find a model able to separate G1 from G3, then evaluate the …
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Vision based methodology for evaluation of meat quality characteristics : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… quality evaluation and to provide an imaging system, which can be used at processor and retail operations, as an interactive system. The information available in the captured images is translated into parameters, which relate to meat quality characteristics. This imaging system should be able …