In order to get effectively feature vectors of samples, a method of feature extraction is proposed based on non-negative matrix factorization (NMF) with approximate orthogonal constraint. An objective function is defi...
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This paper describes an efficient approach towards road sign detection, and recognition. The proposed system is divided into three sections namely: Road Sign Detection where Colour Segmentation of the road traffic sig...
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Face recognition is one of typical biometric identification method, which has a great prospect in secure authentication system, file management, human-computer interaction and social security. This paper proposes gray...
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ISBN:
(纸本)9781479951529
Face recognition is one of typical biometric identification method, which has a great prospect in secure authentication system, file management, human-computer interaction and social security. This paper proposes gray-scale characteristics and creates facial templates to recognize faces method based on a given number of samples. Firstly, it selects the method of building template according to the number of samples to create the facial template image; then, it will compare the difference of first-order edge entropy between recognition image and the template image and find the best match result; finally, the recognition result is output. Experimental results show that the proposed algorithm has good recognition effect on face recognition under non-constraint conditions.
The complex problems usually have netted structure, namely netted problems. The generally solving methods are based on sequence-searching or tree-searching of this kind of problems. But the structure of netted problem...
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In this paper, we constructed the architecture of mobile heterogeneous sensor network by introducing user equipments (UEs) in static wireless sensor network. We analyzed the failure of traditional static clustering al...
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A novel and efficient speckle noise reduction algorithm based on wavelet transform by cycle spinning for removing speckle of unknown variance and minimizing the effect of pseudo-Gibbs phenomena from Synthetic Aperture...
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Finite-difference tine-domain studies of a variety of cylinder arrays with nanometer-scale diameters (nanowires)interacting with light are *** and absorption cross sections for metallic nanoscale objects can be obtain...
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Finite-difference tine-domain studies of a variety of cylinder arrays with nanometer-scale diameters (nanowires)interacting with light are *** and absorption cross sections for metallic nanoscale objects can be obtained from such *** method is verified by comparing the analytical results for cylindrical *** the optical properties of Ag nanowires and study the explicit time-domain behavior of more cylinders.
The keys to electromagnetic simulation of arbitrary configuration of conducting surfaces by method of moments(MoM) are filling of impedance matrix elements and solving of linear equations.A CUDA (Compute Unified Devic...
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ISBN:
(纸本)9781479909216
The keys to electromagnetic simulation of arbitrary configuration of conducting surfaces by method of moments(MoM) are filling of impedance matrix elements and solving of linear equations.A CUDA (Compute Unified Device Architecture)enabled graphics processing unit (GPU) launched by NVIDIA company to accelerate implementation of the fast filling of impedance matrix in MoM based on Rao-Wllton-Glisson (RWG)basis functions was *** LU decomposition method is applied for the solving of linear equations, and a parallel method looping over squares is proposed in CUDA parallel platform, *** GPU numerical results for a usercreated benchmark structures are checked with comparison to CPU results.A noticeable speedup of the filling of impedance matrix (hundreds times) and solving of linear equations (about 10times) is achieved due to the employing of GPU.
Casimir effect is an observable macroscopic quantum *** has significant influence on micro-machine and *** on a generalization of the Lifshitz theory, we calculate Casimir force between the doped silicon slab and *** ...
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ISBN:
(纸本)9781479909216
Casimir effect is an observable macroscopic quantum *** has significant influence on micro-machine and *** on a generalization of the Lifshitz theory, we calculate Casimir force between the doped silicon slab and *** simulating, we can see that the magnitude and the direction of the Casimir force can be changed by varying doping level, the thickness of doped silicon slab, and filling factor of *** the force can be controlled by tuning these *** can be restoring force in a certain range of distance, which can provide a method to deal with the stability problem, and bring much meaningful results from the practical views.
The optical absorption properties of the thin-film solar cell (SC) is an important manifestation of its ***-difference frequency-domain (FDFD) method is employed to discretize the Maxwell's equations for the desig...
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ISBN:
(纸本)9781479909216
The optical absorption properties of the thin-film solar cell (SC) is an important manifestation of its ***-difference frequency-domain (FDFD) method is employed to discretize the Maxwell's equations for the designed *** relationship between the absorbed power density with the design structure and the incident angle were deeply *** numerical results can provide a reference for the design and optimization of thin film solar cells.
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