Interference Image Edge Detection Based on Wavelet Packet for Laser Interferometer Hydrophone

Abstract:

An interference image edge detection method for laser interferometer hydrophone based on wavelet packet is investigated. Considering the effect of ocean background noise on the interference image, we propose the use of a class of wavelet packet functions to make decomposition on noisy interference image, and then make reconstruction on approximate parts of the decomposed image. The approximate parts with the wavelet packet decomposition is of more clear image layers comparison to the original image, and the wavelet packet decomposition method can reduce the influence of background noise on the interference image. Taking the wavelet packet decomposition method and other edge detection algorithms for contrast, it is proved that the wavelet packet decomposition method for edge detection algorithm is more effective than the other algorithms.

• Periodical: Applied Mechanics and Materials (Volume 441)
• Pages: 670-673
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.441.670
• Online since: December 2013
• Authors: Zhong Hai Zhou, Jian Yuan, Jun Xiao Li
• Keywords: Edge Detection, Interference Image, Laser Interferometer Hydrophone, Ocean Background Noise, Wavelet Packet

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