نتایج جستجو برای: gabor wavelet filters

تعداد نتایج: 84218  

1995
Xing Wu Bir Bhanu

This paper presents a model-based object recognition approach that uses a hierarchical Gabor wavelet representation. The key idea is to use magnitude, phase and frequency measures of Gabor wavelet representation in an innovative flexible matching approach that can provide robust recognition. A Gabor gr id , a topology-preserving map, eficiently encodes both signal energy and structural informat...

2014
Hyunjong Cho Rodney Roberts Bowon Jung Okkyung Choi Seungbin Moon

With the rapid development of computers and the increasing, mass use of high-tech mobile devices, vision-based face recognition has advanced significantly. However, it is hard to conclude that the performance of computers surpasses that of humans, as humans have generally exhibited better performance in challenging situations involving occlusion or variations. Motivated by the recognition metho...

2015
Jie Sun Lijian Zhou Zhe-Ming Lu L. J. Zhou

The orientation of iris texture will influence the iris recognition rate and the 2 dimensional Gabor filters (2-D Gabor) has better selectivity in orientation and frequency, so the multi-scales and multi directions 2-D Gabor filters can be used to extract the iris features. But there are many shortcomings such as long extraction feature time and high feature dimensions to use the traditional 2-...

2014
Sanwta Ram Dogiwal Abhay Upadhyaya

The main objective of the super resolution images is to enhance the quality of the multiple lower resolution images. Super Resolution image is constructed by using raw images. An Image with improved resolution is always desirable for various applications like satellite, medical etc. to enhance the qualitative features are the images. In this paper, Super Resolution Image Reconstruction (SRIR) i...

Journal: :CoRR 2017
Shangzhen Luan Baochang Zhang Chen Chen Xianbin Cao Jungong Han Jianzhuang Liu

Steerable properties dominate the design of traditional filters, e.g., Gabor filters, and endow features the capability of dealing with spatial transformations. However, such excellent properties have not been well explored in the popular deep convolutional neural networks (DCNNs). In this paper, we propose a new deep model, termed Gabor Convolutional Networks (GCNs or Gabor CNNs), which incorp...

2011
Deepti Tamrakar Pritee Khanna

This manuscript presents, palmprint recognition by combining different texture extraction approaches with high accuracy. The Region of Interest (ROI) is decomposed into different frequencytime sub-bands by wavelet transform up-to two levels and only the approximate image of two levels is selected, which is known as Approximate Image ROI (AIROI). This AIROI has information of principal lines of ...

Journal: :Integrated Computer-Aided Engineering 2010
Zhenyu He Xinge You Long Zhou Yiu-ming Cheung Jianwei Du

Writer identification is an important and active branch of biometrics, which means the methods for uniquely recognizing humans based upon their intrinsic physical or behavioral traits. In this paper, we propose one new method for off-line, textindependent writer identification by using the fractal dimension of wavelet subbands in Gabor domain of the handwriting images. In this method, the handw...

2013
Ching-Tang Hsieh Chia-Shing Hu Yu-Cheng Lee

A face aging/reverse-aging synthesis method based on face detection and Log-Gabor wavelet is proposed. Source images are first captured by the AdaBoost face detection algorithm and then individually normalized. A reference image from the target age group that closely resembles the test subject’s face is then selected. Because the Log-Gabor wavelet is characterized by a broader bandwidth and tak...

2010
Wei-lun Chao

This term project report introduces the well-know Gabor wavelet transform and its applications. Wavelet transform could extract both the time (spatial) and frequency information from a given signal, and the tunable kernel size allows it to perform multi-resolution analysis. Among kinds of wavelet transforms, the Gabor wavelet transform has some impressive mathematical and biological properties ...

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