Extraction of geomorphological and texture features of underwater acoustic shadow area based on BEMD
[1]Ge Guangtao,Sang Enfang,LIU Zhuofu,et al.Extraction of geomorphological and texture features of underwater acoustic shadow area based on BEMD[J].Journal of Zhengzhou University (Engineering Science),2007,28(04):70-74.[doi:10.3969/j.issn.1671-6833.2007.04.018]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
28卷
Number of periods:
2007年04期
Page number:
70-74
Column:
Public date:
1900-01-01
- Title:
- Extraction of geomorphological and texture features of underwater acoustic shadow area based on BEMD
- Keywords:
- Sound and shadow area; feature extraction; edge detection; Two-dimensional empirical modal decomposition
- CLC:
- -
- DOI:
- 10.3969/j.issn.1671-6833.2007.04.018
- Abstract:
- A method for extracting geomorphological and texture features of hydroacoustic images based on The Bidimensional Empirical Mode Decomposition (BEMD) is proposed. In order to solve the problem of interference from the presence of acoustic shadow area on the feature extraction of underwater acoustic images, the two-dimensional modal decomposition of the underwater acoustic images is carried out first, and the Canny edge detector is used to extract the features of mode 1 or the superposition of several modes. Experimental results show that this method enhances the feature information of targets in the acoustic shadow area and weakens the shadow edge in the acoustic shadow area, which is a practical new method for feature extraction of underwater acoustic images.
- References:
- -
- Similar References:
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Last Update:
1900-01-01