NEW WAVELET TRANSFORM NORMALIZATION TO REMOVE FREQUENCY BIAS

被引:33
作者
TELFER, B
SZU, HH
机构
关键词
WAVELET TRANSFORMS; FREQUENCY BIAS; OPTICAL CORRELATORS; WAVELET NORMALIZATION;
D O I
10.1117/12.59912
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new wavelet transform normalization procedure is proposed for the construction of a weighted bank of correlation filters. The standard normalization results in lower input frequencies producing larger wavelet transform magnitudes for equal-amplitude frequencies, while the new normalization produces equal responses as desired. This is illustrated with examples of Gibb's overshooting phenomenon and a cocktail party effect. A derivation is given to show that an inverse transform still exists when using the new normalization.
引用
收藏
页码:1830 / 1834
页数:5
相关论文
共 3 条
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Grossmann A., 1989, WAVELETS TIME FREQUE, P2, DOI 10.1007/978-3-642-97177-8_1
[2]   WAVELET TRANSFORM AS A BANK OF THE MATCHED-FILTERS [J].
SZU, H ;
SHENG, YL ;
CHEN, J .
APPLIED OPTICS, 1992, 31 (17) :3267-3277
[3]  
SZU H, 1992, P SPIE, V1705