This paper describes a novel approach to detect therough face and facial feature regions with various posesin gray intensity image. Using the eye edge informationand gray distribution, an energy function is designed t...
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This paper describes a novel approach to detect therough face and facial feature regions with various posesin gray intensity image. Using the eye edge informationand gray distribution, an energy function is designed toevaluate whether the current rectangle in image colltainsthe eye region or *** on the extracted eye region,the potential mouth region is evaluated whethercontaining a mouth by using some rules. Geneticalgorithm is used to perform search process in the wholeinput image according to the value of energy *** results show that the proposed approach isfast and reliable.
To track complex multiple features in video sequences isalways a challenging problem, we present a feature-tracking algorithmintegrating feature recognition and feature match in this *** to feature attributes and rela...
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To track complex multiple features in video sequences isalways a challenging problem, we present a feature-tracking algorithmintegrating feature recognition and feature match in this *** to feature attributes and relationship among estimated features,extracted features are classifies as four types of features. Then differentquantitative matching strategies are applied to track different kinds offeatures. To verify the tracks, cross correlation test and predicted 3Dmodel based test are used to test and remove outliers. The contributionsand characters of each attribute are considered in our algorithm. Theexperimental results demonstrate the efficiency of the presented motion-tracking algorithm.
In this paper we demonstrate that the dominantfrequencies and Lipschitz exponents in non-stationarv andtransitory power quality disturbances. effciently extractedfrom their wavelet transform modulus maxima (WTMM)in th...
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In this paper we demonstrate that the dominantfrequencies and Lipschitz exponents in non-stationarv andtransitory power quality disturbances. effciently extractedfrom their wavelet transform modulus maxima (WTMM)in the time-scale domain. can serve as powerfuldiscriminating features for wavelet-based classification ofthese disturbances. We also propose a comprehensive"Knowledge-based" algorithm for the training of the radialbasis function (RBF) network classifier so that at itsconvergence. the network gives both the optimal featureweight vector as well as the cluster centres and scalingwidths.
The Artificial Neural Network (ANN) has widelybeen used in the field of pattern classification. The main taskof image segmentation is to extract interested objects placedat different locations in images, so it is a ki...
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The Artificial Neural Network (ANN) has widelybeen used in the field of pattern classification. The main taskof image segmentation is to extract interested objects placedat different locations in images, so it is a kind of patternclassification problem. It can be treated as maximumlikelihood estimation problem in color image whenrepresented in color histogram. In order to improve theflexibility of the classify result in changed environment wepropose the method of training the color pattern in a neuralnetwork using the EM algorithm which is a general methodfor maximum likelihood problem. Experiment proved that itis applicable and significant.
A new LMS based Fourier analyzer forsinusoidal signals with time-varying amplitude isproposed. The frequency response of the proposedalgorithm in the steady state is derived in order toprovide filtering insight of the...
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A new LMS based Fourier analyzer forsinusoidal signals with time-varying amplitude isproposed. The frequency response of the proposedalgorithm in the steady state is derived in order toprovide filtering insight of the proposed adaptivealgorithm in the steady state. From numericalexperiment, it is found that the proposed methodcan track each amplitude of cosine and sinesignals much faster than the conventional LMSmethod.
Electric utilities are constantly planning toexpand transmission and distribution *** fact of the huge capital investmentrequired, distributed generation is viewed as abetter strategy than the traditional expensivelar...
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Electric utilities are constantly planning toexpand transmission and distribution *** fact of the huge capital investmentrequired, distributed generation is viewed as abetter strategy than the traditional expensivelarge projects development *** sited PV-dispersed systems couldhelp reducing the voltage violation ***, statistics gained from differentstudies identified the problem of power qualityas a site specific;consequently a site specificsolution should be declared. These distributedPV-systems are functioning as voltagemagnitude and/or phase support. Three single-phase PV-system are located behind the point ofvoltage violation. A feeder line with PV-systemis simulated with MATLAB to study differentviolation cases, to assess the ability ofdistributed renewable systems solving networkproblems.
In the paper we discuss recently developed fibers called HOLEYFIBERS mid their special class called PHOTONIC CRYSTALFIBERS (PCF's). Also a new Communication and OpticalNetworking system employing Holey optical fib...
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In the paper we discuss recently developed fibers called HOLEYFIBERS mid their special class called PHOTONIC CRYSTALFIBERS (PCF's). Also a new Communication and OpticalNetworking system employing Holey optical fiber is discussed. Inthe new model of light propagation the transverse refractive indexprofile and modal electric field are decomposed using orthogonalfunctions and the results obtained are employed in creating newWDM and DWDM communication systems and their possibleutilisation in optical networks. Also a number of areas of interestin these fibers and their applications to communication systems areexplored.
In this paper. thcrmodynamic unit matrix analysis methodis used to research the general regulation and thermodynamicessence of the thermo-economic changes caused by the shaftgIand system. On the base of the traditiona...
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In this paper. thcrmodynamic unit matrix analysis methodis used to research the general regulation and thermodynamicessence of the thermo-economic changes caused by the shaftgIand system. On the base of the traditional thermal balancemethod, we developed a new approach for calculating the shaftgland system's thermo-economics. The new method hascharacteristics of clear concept, broad application and easypopularization Furthrmore, it is even more helpful tocomputerize the thermo-economic analsis of the thermalsystem and energy conservation on-line monitoring.
This paper proposes a web cache replacement algorithmthat considers object size and usage in its design. Thealgorithm is characterized by a parameter k, which is usedas a criterion to select objects for replacement. W...
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This paper proposes a web cache replacement algorithmthat considers object size and usage in its design. Thealgorithm is characterized by a parameter k, which is usedas a criterion to select objects for replacement. Wedescribe the algorithm and use an example to illustratehow it works. The algorithm has been implemented andapplied to a variety of workloads which differ in thedistribution of object size and access *** results are presented and analyzed. It isfound that the method shows good performance comparedto other existing schemes.
A new theory on tuning-off degree in compensationnetwork is adopted to realize direct measuring this keyparameter of power network. With high precision, themeasuring error is not more than 0.56%, with good real-timepr...
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A new theory on tuning-off degree in compensationnetwork is adopted to realize direct measuring this keyparameter of power network. With high precision, themeasuring error is not more than 0.56%, with good real-timeproperty. the measuring procedure is less than 20 *** are no interference between measuring equipments andpower network and no special communication is required. Thereal-time inspecting and measuring system of networkcontrolled by microcomputer is designed and can inspect andmeasure the tuning-off degree in a wide range of [-96%, 84%].The system can communicate with the automatic-tuningmechanism so as to take corresponding protection measures tomake power network operate safety.
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