نتایج جستجو برای: gabor system

تعداد نتایج: 2234839  

2012
Hunny Mehrotra Banshidhar Majhi Phalguni Gupta

The paper proposes a novel technique for iris recognition using texture and phase features. Texture features are extracted on the normalized iris strip using Haar Wavelet while phase features are obtained using LOG Gabor Wavelet. The matching scores generated from individual modules are combined using sum of score technique. The system is tested on database obtained from Bath University and Ind...

Journal: :bulletin of the iranian mathematical society 0
a. arefijammal department of mathematics and computer sciences‎, ‎hakim sabzevari university‎, ‎sabzevar‎, ‎iran. e. zekaee department of mathematics‎, ‎shahrood university of‎ ‎technology‎, ‎shahrood‎, ‎iran.

‎we present an application of the dual gabor frames to image‎ ‎processing‎. ‎our algorithm is based on finding some dual gabor‎ ‎frame generators which reconstructs accurately the elements of the‎ ‎underlying hilbert space‎. ‎the advantages of these duals‎ ‎constructed by a polynomial of gabor frame generators are compared‎ ‎with their canonical dual‎.

Journal: :Filomat 2023

Due to R+ not being a group under addition, L2(R+) admits no traditional Gabor system as L2(R). Observing that is new addition ???, we in this paper introduce and characterize class of weak dual frames based on structure. Some examples are also provided.

Journal: :CoRR 2014
Hongli Liu Weifeng Liu Yanjiang Wang

Facial analysis has attracted much attention in the technology for human-machine interface. Different methods of classification based on sparse representation and Gabor kernels have been widely applied in the fields of facial analysis. However, most of these methods treat face from a whole view standpoint. In terms of the importance of different facial views, in this paper, we present multi-vie...

Journal: :Pattern Recognition 2015
T. Hoang Ngan Le Keshav Seshadri Khoa Luu Marios Savvides

A reliable and accurate biometric identification system must be able to distinguish individuals even in situations where their biometric signatures are very similar. However, the strong similarity in the facial appearance of twins has complicated facial feature based recognition and has even compromised commercial face recognition systems. This paper addresses the above problem and proposes two...

1998
Peter Kalocsai Hartmut Neven Johannes Steffens

A successful face recognition system calculates similarity of face images based on the activation of multiscale and multiorientation Gabor kernels, but without utilizing any statistical properties of that representation [3]. A method has been developed to weight the contribution of each element (1920 kernels) in the representation according to their power of predicting similarity of faces. The ...

2008
Xiaorong WANG Yingkai ZHAO

Gabor filters have been used extensively in areas related to feature extraction of images due to their localization in space and bandlimited properties. Since 2-D Gabor filters have more complexity of computation, they have been used in static image decompositions rather than for mobile robots. In an attempt to reduce complexity of computation of 2-D Gabor filters for mobile robots, in this pap...

1995
John J. Benedetto Christopher Heil

\If it is true, it can be proved." | Enrico Fermi ABSTRACT. The Balian{Low theorem (BLT) is a key result in time-frequency analysis, originally stated by Balian and, independently, by Low, as: If a Gabor system fe 2imbt g(t ? na)g m;n2Z with ab = 1 forms an orthonormal basis for L 2 (R), then Z 1 ?1 jtg(t)j 2 dt Z 1 ?1 j ^ g()j 2 dd = +1: The BLT was later extended from orthonormal bases to exa...

2014
Will Cousins Themistoklis P. Sapsis

The aim of this work is the quantification and prediction of rare events characterized by extreme intensity in nonlinear waves with broad spectra. We consider a one-dimensional nonlinear model with deepwater waves dispersion relation, theMajda–McLaughlin–Tabak (MMT)model, in a dynamical regime that is characterized by a broadband spectrum and strong nonlinear energy transfers during the develop...

Journal: :International Journal of Electrical and Computer Engineering (IJECE) 2019

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