A New Radiometric Correction Method for Side-Scan Sonar Images in Consideration of Seabed Sediment Variation
AbstractAffected by the residual of time varying gain, beam patterns, angular responses, and sonar altitude variations, radiometric distortion degrades the quality of side-scan sonar images and seriously affects the application of these images. However, existing methods cannot correct distortion effectively, especially in the presence of seabed sediment variation. This study proposes a new radiometric correction method for side-scan sonar images that considers seabed sediment variation. First, the different effects on backscatter strength (BS) are analyzed, and along-track distortion is removed by establishing a linear relationship between distortion and sonar altitude. Second, because the angle-related effects on BSs with the same incident angle are the same, a novel method of unsupervised sediment classification is proposed for side-scan sonar images. Finally, the angle–BS curves of different sediments are obtained, and angle-related radiometric distortion is corrected. Experiments prove the validity of the proposed method. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Zhao, J.; Yan, J.; Zhang, H.; Meng, J. A New Radiometric Correction Method for Side-Scan Sonar Images in Consideration of Seabed Sediment Variation. Remote Sens. 2017, 9, 575.
Zhao J, Yan J, Zhang H, Meng J. A New Radiometric Correction Method for Side-Scan Sonar Images in Consideration of Seabed Sediment Variation. Remote Sensing. 2017; 9(6):575.Chicago/Turabian Style
Zhao, Jianhu; Yan, Jun; Zhang, Hongmei; Meng, Junxia. 2017. "A New Radiometric Correction Method for Side-Scan Sonar Images in Consideration of Seabed Sediment Variation." Remote Sens. 9, no. 6: 575.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.