DocumentCode
2290114
Title
Multi-resolution vegetation classification along lower Rio Grande
Author
Zhang, Libin ; Desai, M.D. ; Lonard, R. ; Judd, F.
Author_Institution
Div. of Eng., Texas Univ., San Antonio, TX, USA
fYear
1998
fDate
5-7 Apr 1998
Firstpage
75
Lastpage
80
Abstract
We present a quasi-wavelet based approach for multiresolution unsupervised and supervised vegetation classification of videography imagery. Due to certain limitations of traditional wavelet decomposition, we investigate a new quasi-wavelet decomposition to generate an alternative feature space for vegetation classification. Most existing wavelet-based classification approaches only consider the information on low-low frequency subspaces at each decomposed stage. However, both low and high frequency features are applied in our algorithms and are controlled by weight setting on the vector feature space. The thresholding method is used for generating the original class center to achieve a convergent result for unsupervised classification. The results on lower Rio Grande Valley videography imagery are presented
Keywords
environmental science computing; image classification; image resolution; remote sensing; video signal processing; wavelet transforms; Rio Grande Valley; United States; convergent result; feature space; high frequency features; low frequency features; multi-resolution vegetation classification; quasi-wavelet based approach; quasi-wavelet decomposition; supervised classification; unsupervised classification; vector feature space; videography imagery; wavelet-based classification; weight setting; Continuous wavelet transforms; Discrete wavelet transforms; Frequency; Image analysis; Image resolution; Multiresolution analysis; Signal resolution; Vegetation mapping; Wavelet analysis; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Image Analysis and Interpretation, 1998 IEEE Southwest Symposium on
Conference_Location
Tucson, AZ
Print_ISBN
0-7803-4876-1
Type
conf
DOI
10.1109/IAI.1998.666863
Filename
666863
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