2HELLEQUIN L BOUCHER J M, LURTON X. Process- ing of high-frequency multibeam echo sounder data for seafloor characterization [J]. IEEE Journal of Oceanic Engineering, 2003, 28(1): 78-89.
3CANNY J. A computational approach to edge detec- tion IJl. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1986, 8(6): 679-698.
4MALLAT S, HUANG W L. Singularity detection and processing with wavelets [J]. IEEE Transactions on Information Theory, 1992, 38(2): 617-643.
5PELLEGRINO F A. Edge detection revisited [J]. IEEE Transactions on System Man and Cybernetic, 2004, 34(3): 1500-1517.
6ZHANG Y, ROCKETT P I. The Bayesian operating point of the Canny edge detector [J]. IEEE Transac- tions on Image Processing, 2006, 15(11): 3409-3416.
7MIGNOTTE M, COLLET C, PRREZ P, BOUTHEMY P. Sonar image segmentation using an unsupervised hi- eraxchical MRF model [J]. IEEE Transactions on Im- age Processing, 2000, 9(7): 1216-1231.
8JEONG H, KIM C I. Adaptive determination of fil- ter scales for edge detection [J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1992, 14(5): 579-585.
9WAN(] X. Laplacian operator-based edge detectors [J]. IEEE Transactions on Pattern Analysis and Ma- chine Intelligence, 2007, 29(5): 886-890.
10CUNHA A L, ZHOU J, DO M N. The nonsubsampled contourlet transform: theory, design, and applica- tions [J]. IEEE Transactions on Image Processing, 2006, 15(10): 3089-3101.