Chinese Optics Letters, 2006, 4 (12): 697, Published Online: Dec. 30, 2006
Target detection under sea background using constructed biorthogonal wavelet
图像处理 海面目标 双正交小波 小波基构造 110.0110 Imaging systems 100.2000 Digital image processing 110.2970 Image detection systems 100.7410 Wavelets
Abstract
A new technique is presented to detect targets under sea background. Focused on interested areas, the spatial and frequency distributions are first studied, then analytic expression of targets is set up by least square method (LSM). According to the shape, frequency, and analytic expression of targets, a matched biorthogonal wavelet is constructed to better enhance targets and eliminate noises. Results show the usefulness of this method for single frame detection (signal to noise ratio SNR>=1.25), which provides a better performance than classic wavelets and morphological filtering.
Peng Zhang, Jianxun Li. Target detection under sea background using constructed biorthogonal wavelet[J]. Chinese Optics Letters, 2006, 4(12): 697.