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Ring-projection-wavelet-fractal signatures: a novel approach tofeature extraction

机译:环形投影-小波分形签名:一种新的特征提取方法

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In this brief, we present a novel approach to optical characternrecognition that utilizes ring-projection-wavelet-fractal signaturesn(RP-WFS). In particular, the proposed approach reduces thendimensionality of a 2-D pattern by way of a ring-projection method and,nthereafter, performs Daubechies' wavelet transformation on the derivedn1-D pattern to generate a set of wavelet transformation subpatterns,nnamely, curves that are nonself-intersecting. Further, from thenresulting nonself-intersecting curves, the divider dimensions arenreadily computed. These divider dimensions constitute a new featurenvector for the original 2-D pattern, defined over the curves' fractalndimensions. We have conducted several experiments in which a set ofnprinted alphanumeric symbols of varying fonts and orientation werenclassified, based on the formulation of our new feature vector. Thenresults obtained from these experiments have consistently shown thencharacter recognition approach with the proposed feature vector cannyield an excellent classification rate of 100%
机译:在本文中,我们提出了一种利用环投影-小波-分形签名n(RP-WFS)进行光学字符识别的新方法。特别地,所提出的方法通过环形投影法降低了二维图案的维数,并且此后,对派生的n一维图案进行了道贝基斯小波变换以生成一组小波变换子图案,即曲线,是非自相交的。此外,根据产生的非自相交曲线,可以轻松计算出分频器尺寸。这些除法器尺寸构成了原始2D模式的新特征向量,该向量在曲线的分形维数上定义。我们已经进行了一些实验,其中根据我们的新特征向量的公式,对一组字体和方向不同的nprinted字母数字符号进行了分类。从这些实验中获得的结果一致地表明了所提出的特征向量的字符识别方法具有100%的优良分类率

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