Complex method for speckle noise reduction in the sonar image from a small underwater target

Author

Yang, Hongwei ; Li, Xiaoli ; Wu, Junpeng ; Guo, Haitao

Author_Institution

Power Transm. & Transformation Technol. Coll., Northeast Dianli Univ., Jilin, China

fYear

2011

fDate

8-10 Aug. 2011

Firstpage

254

Lastpage

256

Abstract

A complex method for speckle noise reduction in the sonar image from a small underwater target is proposed. In the method, the logarithmic transformation of the image is operated, and then the transformed image is processed by the multilevel median filter, and then the processed image is reprocessed by the rough sets weighted mean filter, and then the final image is obtained by the exponential transformation of the reprocessed image. A full description of the principle and process and experimental results of the proposed method is given. The experimental results show that the proposed method is effective on speckle noise reduction and image edge preservation.

Keywords

image denoising; median filters; rough set theory; sonar imaging; image edge preservation; image exponential transformation; logarithmic transformation; multilevel median filter; rough set weighted mean filter; small underwater target; sonar image; speckle noise reduction; Educational institutions; Electrical engineering; Noise reduction; Rough sets; Speckle; Synthetic aperture sonar; small underwater object; sonar image; speckle noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on

Conference_Location

Deng Leng

Print_ISBN

978-1-4577-0535-9

Type

conf

DOI

10.1109/AIMSEC.2011.6010410

Filename

6010410