نتایج جستجو برای: gabor system

تعداد نتایج: 2234839  

2013
KARLHEINZ GRÖCHENIG LUIS ROMERO

We introduce a new notion for the deformation of Gabor systems. Such deformations are in general nonlinear and, in particular, include the standard jitter error and linear deformations of phase space. With this new notion we prove a strong deformation result for Gabor frames and Gabor Riesz sequences that covers the known perturbation and deformation results. Our proof of the deformation theore...

2011
Retno Kusumaningrum Aniati Murni Arymurthy

In this study, we proposed score fusion technique to improve the performance of remote sensing image retrieval system (RS-IRS) using combination of several features. The representation of each feature is selected based on their performance when used as single feature in RS-IRS. Those features are color moment using L*a*b* color space, edge direction histogram extracted from Saturation channel, ...

Journal: :Journal of Multimedia 2012
Shuang Xu Jifeng Ding

In this paper, the method of processing and linear discriminant analysis of palmprint image is proposed. The palmprint image processing focuses on the location and segmentation which involves rotation and transition. By means of finding the two locate points about the index finger and middle finger, ring finger and little finger, the palmprint image is rotated and corrected a new coordinate sys...

Journal: :CoRR 2017
Kamaledin Ghiasi-Shirazi

Gabor functions have wide-spread applications in image processing and computer vision. In this paper, we prove that 2D Gabor functions are translation-invariant positive-definite kernels and propose a novel formulation for the problem of image representation with Gabor functions based on infinite kernel learning regression. Using this formulation, we obtain a support vector expansion of an imag...

Journal: :IOP Conference Series: Materials Science and Engineering 2020

2007
Sanghoon Kim Sun - Tae Chung Souhwan Jung Seoungseon Jeon Jaemin Kim Seongwon Cho

In this paper, we propose a face recognition algorithm using AAM and Gabor features. Gabor feature vectors which are well known to be robust with respect to small variations of shape, scaling, rotation, distortion, illumination and poses in images are popularly employed for feature vectors for many object detection and recognition algorithms. EBGM, which is prominent among face recognition algo...

Journal: :Electronics 2022

The intervention of noise into images during data acquisition and transmission is inevitable. Hence, the denoising such affected essential in order to have effective image analysis where it needs filtering. Gabor filter widely adapted various processing applications for feature extraction, texture analysis, pattern etc. Gabor-based filtering technique adopted work aimed extract edges. design a ...

Journal: :IJWMIP 2013
Yun-Zhang Li Yan Zhang

This talk addresses vector-valued subspace Gabor frames with rational time-frequency product. By introduction of a suitable Zak transform matrix, we characterize vector-valued subspace Gabor frames, Riesz bases and orthonorrmal bases, and the uniqueness of Gabor duals of type I and type II. Using the uniqueness results, we extend the classical Balian-Low theorem to vector-valued subspace Gabor ...

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