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自动化研究所 [4]
长春光学精密机械与物... [1]
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OAI收割 [5]
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期刊论文 [3]
会议论文 [1]
学位论文 [1]
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2006 [1]
2005 [1]
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1997 [1]
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A new approach for the removal of mixed noise based on wavelet transform (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Li Y.
;
Li Y.
;
Li Y.
;
Li Y.
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浏览/下载:38/0
  |  
提交时间:2013/03/25
This paper proposed a new approach for the removal of mixed noise. There are many different ways in image denoising. Donoho et al have proposed a method for image de-noising by thresholding
ambiguity is often resulted in determining the correspondence of a modulus maximum to a singularity. In the light
and indeed
we combine the merits of the two techniques to form a new approach for the removal of mixed noise. At first
the application of their method to image denoising has been extremely successful. But the method of Donoho is based on the assumption that the type of noise is only additive Gaussian noise
we used wavelet singularity detection (WSD) technique to analyze singularities of signal and noise. According to the characteristic that wavelet transform modulus maxima of impulse noise rapidly decreases as the scale increases in wavelet domain
which is not successful for impulse noise. Mallat has also presented a method for signal denoising by discriminating the noise and the signal singularities through an analysis of their wavelet transform modulus maxima (WTMM). Nevertheless
it can be accurately located with multiscale space by going through dyadic orthogonal wavelet transform and removed. Furthermore the Gaussian noise is also removed through a level-dependent thresholding algorithm
the tracing of WTMM is not just tedious procedure computationally
algorithm. The experimental results demonstrate that the proposed method can effectively detect impulse noise and remove almost all of the noise while preserve image details very well.
A fingerprint identification algorithm by clustering similarity
期刊论文
OAI收割
SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES, 2005, 卷号: 48, 期号: 4, 页码: 437-451
作者:
Tian, J
;
He, YL
;
Chen, H
;
Yang, X
;
Tian, Jie
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浏览/下载:16/0
  |  
提交时间:2015/11/06
dyadic scale space (DSS)
minutia-simplex
multi-resolution
comprehensive similarity
Fingerprint enhancement with dyadic scale-space
期刊论文
OAI收割
PATTERN RECOGNITION LETTERS, 2004, 卷号: 25, 期号: 11, 页码: 1273-1284
作者:
Cheng, JG
;
Tian, H
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浏览/下载:20/0
  |  
提交时间:2015/09/23
fingerprint
enhancement
minutiae
dyadic scale space
指纹图像分析及其自动识别
学位论文
OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2004
作者:
程建刚
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浏览/下载:69/0
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提交时间:2015/09/02
指纹增强
指纹特征
指纹匹配
多尽度理论
非线性扩散滤波
Hough变换
Fingerprint Enhancement
Feature
Matching
Dyadic scale space theory
non-linear diffusion filter
Hough transform
Dyadic scale space
期刊论文
OAI收割
PATTERN RECOGNITION, 1997, 卷号: 30, 期号: 2, 页码: 339-352
作者:
Cong, G
;
Ma, SD
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收藏
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浏览/下载:23/0
  |  
提交时间:2018/10/10
Multiscale Signal Processing
Scale Space
Dyadic Scale Space
Interpolation
Feature Detection
Approximating Gaussian
Zero-crossing