TY - JOUR
T1 - Fourier domain shape analysis methods
T2 - A brief review and an illustrative application to rainfall area evolution
AU - Kumar, Praveen
AU - Foufoula‐Georgiou, Efi
PY - 1990/9
Y1 - 1990/9
N2 - Morphological shape analysis techniques offer valuable tools for the study of several hydrologic and atmospheric processes. Detailed description of patterns, as well as evolution and comparison of patterns can be efficiently performed in the Fourier domain and by means of a finite number of Fourier descriptors. In this technical note we present a brief summary of three Fourier domain shape analysis methods: the complex plane method, the angular direction method, and the polar coordinates method. We illustrate the use of the complex plane method for studying the evolution of rainfall areas within a radar‐depicted rainfall field for the purpose of short‐term precipitation forecasting.
AB - Morphological shape analysis techniques offer valuable tools for the study of several hydrologic and atmospheric processes. Detailed description of patterns, as well as evolution and comparison of patterns can be efficiently performed in the Fourier domain and by means of a finite number of Fourier descriptors. In this technical note we present a brief summary of three Fourier domain shape analysis methods: the complex plane method, the angular direction method, and the polar coordinates method. We illustrate the use of the complex plane method for studying the evolution of rainfall areas within a radar‐depicted rainfall field for the purpose of short‐term precipitation forecasting.
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U2 - 10.1029/WR026i009p02219
DO - 10.1029/WR026i009p02219
M3 - Article
AN - SCOPUS:0025630844
SN - 0043-1397
VL - 26
SP - 2219
EP - 2227
JO - Water Resources Research
JF - Water Resources Research
IS - 9
ER -