Automatic Side-Scan Sonar Image Enhancement in Curvelet Transform Domain
Joint Authors
Li, Qingwu
Zhou, Yan
Huo, Guanying
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-04-07
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
We propose a novel automatic side-scan sonar image enhancement algorithm based on curvelet transform.
The proposed algorithm uses the curvelet transform to construct a multichannel enhancement structure based on human visual system (HVS) and adopts a new adaptive nonlinear mapping scheme to modify the curvelet transform coefficients in each channel independently and automatically.
Firstly, the noisy and low-contrast sonar image is decomposed into a low frequency channel and a series of high frequency channels by using curvelet transform.
Secondly, a new nonlinear mapping scheme, which coincides with the logarithmic nonlinear enhancement characteristic of the HVS perception, is designed without any parameter tuning to adjust the curvelet transform coefficients in each channel.
Finally, the enhanced image can be reconstructed with the modified coefficients via inverse curvelet transform.
The enhancement is achieved by amplifying subtle features, improving contrast, and eliminating noise simultaneously.
Experiment results show that the proposed algorithm produces better enhanced results than state-of-the-art algorithms.
American Psychological Association (APA)
Zhou, Yan& Li, Qingwu& Huo, Guanying. 2015. Automatic Side-Scan Sonar Image Enhancement in Curvelet Transform Domain. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073962
Modern Language Association (MLA)
Zhou, Yan…[et al.]. Automatic Side-Scan Sonar Image Enhancement in Curvelet Transform Domain. Mathematical Problems in Engineering No. 2015 (2015), pp.1-14.
https://search.emarefa.net/detail/BIM-1073962
American Medical Association (AMA)
Zhou, Yan& Li, Qingwu& Huo, Guanying. Automatic Side-Scan Sonar Image Enhancement in Curvelet Transform Domain. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-14.
https://search.emarefa.net/detail/BIM-1073962
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073962