Optimal wavelet features for an infrared satellite precipitation estimate algorithm

Majid Mahrooghy, Valentine G. Anantharaj, Nicolas H. Younan, James Aanstoos

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A satellite precipitation estimation algorithm based on wavelet features is investigated to find the optimal wavelet features in terms of wavelet family and sliding window size. In this work, the infrared satellite based images along with ground gauge (radar corrected) observations are used for the retrieval rainfall. The goal of this work is to find an optimal wavelet transform to represent better features for cloud classification and rainfall estimation. Our approach involves the following four steps: 1) segmentation of infrared cloud images into patches; 2) feature extraction using a wavelet-based method; 3) clustering and classification of cloud patches using neural network, and 4) dynamic application of brightness temperature (Tb) and rain rate relationships, derived using satellite observations. The results show that Haar and Symlet wavelets with sliding window size 5×5 have better estimate performance than other wavelet families and window sizes.

Original languageEnglish
Title of host publication2010 IEEE 39th Applied Imagery Pattern Recognition Workshop, AIPR 2010
DOIs
StatePublished - 2010
Externally publishedYes
Event2010 IEEE 39th Applied Imagery Pattern Recognition Workshop, AIPR 2010 - Washington, DC, United States
Duration: Oct 13 2010Oct 15 2010

Publication series

NameProceedings - Applied Imagery Pattern Recognition Workshop
ISSN (Print)1550-5219

Conference

Conference2010 IEEE 39th Applied Imagery Pattern Recognition Workshop, AIPR 2010
Country/TerritoryUnited States
CityWashington, DC
Period10/13/1010/15/10

Keywords

  • clustering methods
  • curve fitting
  • feature extraction
  • neural networks
  • wavelet transforms

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