Original scientific paper
REMOTE SENSING OF WAVE DIRECTIONALITY BY TWO-DIMENSIONAL DIRECTIONAL WAVELETS : PART 2. APPLICATIONS TO THE NUMERICAL AND FIELD DATA
Young Jun Yang
; Pusan National University, Dpt. of Naval Architecture and Ocean Engineering, Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea
Sun Hong Kwon
Seung Geun Park
; Global Core Research Center for Ships and Offshore Plants, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea
Sang Beom Lee
; Global Core Research Center for Ships and Offshore Plants, Pusan National University, Jangjeon-dong, Geumjeong-gu, Busan, 609-735, Republic of Korea
Jun Soo Park
; Kyungnam University, Dpt. of Naval Architecture, Ocean and IT Engineering, 7 Kyungnamdaehak-ro, Masanhappo-gu, Changwon-si, Gyeongsangnam-do, Republic of Korea
Abstract
This paper presents the results of a study investigating methods of interpretation of wave directionality based on wavelet transform. In part 1 of this paper, the tools to be used in detection of wave directionality, i. e., the Morlet and Cauchy wavelets, were described. This paper presents the application results of the directional wavelet to numerically generated images and video images taken in laboratory wave flume, river, and sea. The results showed that directional wavelet transform can be an efficient tool in detecting wave directionality with extremely low effort and cost when it is compared to traditional practices in use.
Keywords
Directionality; Directional wavelets; Morlet wavelet; Cauchy wavelet; Signal
Hrčak ID:
131439
URI
Publication date:
25.12.2014.
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