一種改進(jìn)的臨界采樣Gabor變換方法
An improved critical sampling gabor transform
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摘要: 利用對(duì)過采樣Gabor變換系數(shù)的去冗余化設(shè)計(jì),得到一種改進(jìn)的臨界采樣Gabor變換。在這種改進(jìn)的臨界采樣Gabor變換方法中,綜合函數(shù)與分析函數(shù)可以同時(shí)具有良好的時(shí)頻局域性及正則性,而其計(jì)算量則與一般的臨界采樣Gabor變換相當(dāng)。
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關(guān)鍵詞:
- 臨界采樣; Gabor變換; 時(shí)頻局域性
Abstract: By removing redundance from oversampling Gabor transform, an improved critical sampling Gabor transform is presented where its synthesis and analysis function possess favorable local properties and regularity simultaneously, while computation complexity of Gabor coefficient as much as that of conventional critical sampling Gabor transform. -
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