In this paper we propose a novel approach for geometric shape classification by using shape simplification and discrete Hidden Markov Model (HMM). The HMM is constructed using the landmark points obtained from the sha...
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In this paper we propose a novel approach for geometric shape classification by using shape simplification and discrete Hidden Markov Model (HMM). The HMM is constructed using the landmark points obtained from the shape simplification for each shape image in the dataset. Some useful strategies have been employed for the constructed HMM for geometric shape classification. Experimental results based on the common MPEG7 CE shapes database shows that our proposed method can achieve very good accuracy in different kinds of shapes.
We process the unideal iris images that are acquired in an unconstrained situation and are affected severely by gaze deviations, eyelid and eyelash occlusions, non uniform intensities, motion blurs, reflections, etc. ...
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We process the unideal iris images that are acquired in an unconstrained situation and are affected severely by gaze deviations, eyelid and eyelash occlusions, non uniform intensities, motion blurs, reflections, etc. The proposed unideal iris recognition algorithm has two novelties as compared to the previous works; firstly, we propose to deploy a region-based active contour model to segment an unideal iris image with intensity inhomogeneity; Secondly, an iterative algorithm, called the Modified Contribution- Selection Algorithm (MCSA), is used in the context of coalitional game theory to select a subset of informative features without compromising the recognition rate. The verification performance of the proposed scheme is validated using the UBIRIS Version 1, the ICE 2005, and the WVU Unideal datasets.
This paper shows a novel and low complexity approach for corner detection which is based on a normal vector of boundary fitting line. It avoids wrong detection of superfluous corners on no-corner arcs. Our proposed me...
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This paper shows a novel and low complexity approach for corner detection which is based on a normal vector of boundary fitting line. It avoids wrong detection of superfluous corners on no-corner arcs. Our proposed method is superior to Sun's k-cosine corner detection in detection time and has a better performance in localization. Our experiment results confirmed that the proposed approach of corner detection has reached our goal. It is free from rotation and able to locate the corner correctly. In addition, it also performs well for scaling images with the adjustable thresholds.
The airplane goal's automatic identification is a research hot spot which realizing the target automatic recognition of the remote sensing image. The BP neural network is a multi-layered network which using the no...
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The airplane goal's automatic identification is a research hot spot which realizing the target automatic recognition of the remote sensing image. The BP neural network is a multi-layered network which using the non-linear differentiablc function to carry on the weight training. It has contained the most essence part in the neural network theory;the BP neural network has obtained the widespread application in the domains of function approach, pattern Identification, information class and data compression because of its simple structure. Identified and researched the type of airplane based on the artificial neural networks method using the MATLAB software. The result indicated: the accuracy of airplane target recognition may achieve 72.1% based on the BP neural network and it can meet the needs.
This work presents a general framework for people indoor activity recognition. Firstly, a Wireless Fidelity (WiFi) localization system implemented as a Fuzzy Rule-based Classifier (FRBC) is used to obtain an approxima...
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This work presents a general framework for people indoor activity recognition. Firstly, a Wireless Fidelity (WiFi) localization system implemented as a Fuzzy Rule-based Classifier (FRBC) is used to obtain an approximate position at the level of discrete zones (office, corridor, meeting room, etc). Secondly, a Fuzzy Finite State Machine (FFSM) is used for human body posture recognition (seated, standing upright or walking). Finally, another FFSM combines both WiFi localization and posture recognition to obtain a robust, reliable, and easily understandable activity recognition system (working in the desk room, crossing the corridor, having a meeting, etc). Each user carries with a personal digital agenda (PDA) or smart-phone equipped with a WiFi interface for localization task and accelerometers for posture recognition. Our approach does not require adding new hardware to the experimental environment. It relies on the WiFi access points (APs) widely available in most public and private buildings. We include a practical experimentation where good results were achieved.
This paper presents a novel 3D face recognition method by means of the evolution of iso-geodesic distance curves. Specifically, the proposed method compares two neighboring iso-geodesic distance curves, and formalizes...
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ISBN:
(纸本)9781424442959
This paper presents a novel 3D face recognition method by means of the evolution of iso-geodesic distance curves. Specifically, the proposed method compares two neighboring iso-geodesic distance curves, and formalizes the evolution between them as a one-dimensional function, named evolution angle function, which is Euclidean invariant. The novelty of this paper consists in formalizing 3D face by an evolution angle functions, and in computing the distance between two faces by that of two functions. Experiments on Face recognition Grand Challenge (FRGC) ver2.0 shows that our approach works very well on both neutral faces and non-neutral faces. By introducing a weight function, we also show a very promising result on non-neutral face database.
The transforming formula definition from the single valued data to vague valued data was presented,and two transfo-rming formulas from the single valued data to vague valued data were presented,and a similarity measur...
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The transforming formula definition from the single valued data to vague valued data was presented,and two transfo-rming formulas from the single valued data to vague valued data were presented,and a similarity measures between vague sets was presented,and an algorithm for vague patternrecognition was *** has been further expounded through an application living example for battlefield targets identification that this algorithm is practicable.
A tool and associated sound mapping have been developed for exploring and understanding the static structure of Java programs' packages, classes, interfaces, and methods. The tool supplements visual use of the Ecl...
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A tool and associated sound mapping have been developed for exploring and understanding the static structure of Java programs' packages, classes, interfaces, and methods. The tool supplements visual use of the Eclipse IDE. A sound mapping provides information regarding the identification of, characteristics of, and relationships among the architectural entities.
Electromyography (EMG) signal is interfered with different kinds of noise and wavelet denoising algorithm is a powerful method to reduce noises in EMG signal. Hard and soft shrinkage, traditional wavelet transformatio...
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ISBN:
(纸本)9781424456062;9789746724913
Electromyography (EMG) signal is interfered with different kinds of noise and wavelet denoising algorithm is a powerful method to reduce noises in EMG signal. Hard and soft shrinkage, traditional wavelet transformation, are applied to wavelet coefficients with threshold value. From the limitation of hard and soft shrinkage, this study proposes nine improved wavelet shrinkage methods that achieve a compromise between two standards. EMG signal from six hand motions with additive noise at different signal-to-noise ratios were applied to evaluate the efficiency of the methods in denoising viewpoint. In addition, features of estimated denoising signal are sent to classification task to measure the performance in myoelectric control. The experimental results show that adaptive wavelet shrinkage method (ADP) provides the better performance than traditional methods and other modified methods in both of denoising and patternrecognition viewpoints. Accuracy of recognition of EMG signal transformed by ADP is improved about 6.5-78.5% depending on the level of noise. ADP is an efficient method for producing useful EMG signal without noise and improving application of myoelectric control.
On-line tool wear estimation in turning is essential for on-line cutting process optimization. In this work, cutting force measurement is used for a reliable on-line flank wear estimation and tool life monitoring. Mod...
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On-line tool wear estimation in turning is essential for on-line cutting process optimization. In this work, cutting force measurement is used for a reliable on-line flank wear estimation and tool life monitoring. Models for flank wear will be obtained as a function of machining parameters and dynamic cutting forces. The coefficients for flank wear models are obtained by using the experimental results. Then the non-linear dynamic models obtained are calibrated with the actual conditions. These developed models will be used for the simulation of flank wear and using control variable such as cutting speed; the flank wear will be controlled. For model validation, the flank wear is estimated using a non-linear model. In the present work, an attempt has been made to control the flank wear during turning of on-line cutting process using the Fuzzy Logic Controller and Neural network based on self-tuning of PID controller approaches. Those approaches are treat the material as dynamic system and involve developing state space models from available material behavior model. The evaluation of performance criteria can be compared for those approaches of PI controller with Fuzzy Logic Controller and Neural network based on self-tuning of PID controller. Simulation studies are carried-out for the non-linear system using MATLAB software.
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