1 This work is funded by grants from the NSFC (Grant No. 69825105), the National Hi-Tech R&D Program (Grant No. 2001AA114180) and CAS. Abstract In this paper, a novel personalized feature combination scheme is proposed for face recognition. ANFIS (Adaptive Neuro-Fuzzy Inference System) is adopted to form specialized feature representation for each subject by fusing global and local features. F...

This paper considers the problem of controlling the solution of an initial boundary-value problem for a wave equation with time-dependent sound speed. The control problem is to determine the optimal sound speed function which damps the vibration of the system by minimizing a given energy performance measure. The minimization of the energy performance measure over sound speed is subjected to the...

in exploration seismology quality factor is widely used as a seismic attribute to identify anomalies related to attenuation, especially those caused by hydrocarbon. previous studies have indicated that seismic energy loss known as attenuation is greater for high frequency components of seismic data compared to the low frequency components. here the continuous wavelet transform is used to study ...

In recent years, there has been greater attempt to find numerical solutions of differential equations using wavelet's methods. The following method is based on vector forms of Haar-wavelet functions. In this paper, we will introduce one dimensional Haar-wavelet functions and the Haar-wavelet operational matrices of the fractional order integration. Also the Haar-wavelet operational matrices of ...

1 Système à représenter 3 1.1 Description générale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Les processus associés à la station graphique . . . . . . . . . . . . . . . . . . . . 4 1.2.1 Processus associé au cas d’utilisation “Cas 1” : . . . . . . . . . . . . . . 4 1.2.2 Processus associé au cas d’utilisation “Cas 2” : . . . . . . . . . . . . . . 4 1.3 Les processus ...

Wavelets theory is a relatively new and an emerging area in mathematical research. It has been applied to a wide range of engineering disciplines; particularly, wavelets are very successfully used in signal analysis for wave form representation and segmentations, time frequency analysis and fast algorithms for easy implementation. wavelets permit the accurate representation of a variety of func...

this paper presents a rational haar wavelet operational method for solving the inverse laplace transform problemand improves inherent errors from irrational haar wavelet. the approach is thus straightforward, rather simple andsuitable for computer programming. we define that $p$ is the operational matrix for integration of the orthogonalhaar wavelet. simultaneously, simplify the formulaes of li...

Illumination variation is one of the critical factors affecting face recognition rate. A novel approach for human face illumination compensation is presented in this paper. It constructs the nine-dimension face illumination subspace based on quotient image. In addition, with the aim to improve algorithm efficiency, a half-face illumination image is proposed and the low-dimension training set of...