NDLI: Research of Frequency Band Derangement of Wavelet Packet and Application

Content Provider	IEEE Xplore Digital Library
Author	Chen, Yongjun Chen, Xiaojing Wu, Di He, Yong
Copyright Year	2008
Abstract	The reason of frequency band derangement and the rule of frequency band division of wavelet packet transform were analyzed. The correct frequency band sequence of wavelet packet transform (WPT) was found. Then in this study, because of the texture feature information is on the middle frequency band, according to the conclusion, we select the correct frequency band sequence of WPT to classify tea categories, the images of tea were captured by multi-spectral imager (3CCD). Firstly, image was transformed by WPT, the decomposed lever was 3, so 8 nodes were obtained, and the 8 nodes were rearranged. The node (2,3) and node (2,7) were selected as the input texture feature set of training and prediction using by least squares-support vector machine (LS-SVM). The nodes which were selected by the correct frequency band is satisfactory as evident from the experiments; up to 100% accuracy is obtained using LS-SVM
Starting Page	385
Ending Page	389
File Size	614326
Page Count	5
File Format	PDF
ISBN	9780769531199
DOI	10.1109/CISP.2008.610
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-27
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms Fourier transforms Low pass filters Bandwidth Signal processing Frequency conversion Wavelet analysis Wavelet packets Multiresolution analysis Signal detection
Content Type	Text
Resource Type	Article

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