Underwater Multiple Objects Detection and Tracking using Multibeam and Side Scan Sonar

Automatic Underwater Multiple Objects Detection and Tracking Using Sonar Imaging

High-Resolution Underwater Mapping Using Side-Scan Sonar.

The goal of this study is to generate high-resolution sea floor maps using a Side-Scan Sonar(SSS). This is achieved by explicitly taking into account the SSS operation as follows. First, the raw sensor data is corrected by means of a physics-based SSS model. Second, the data is projected to the sea-floor. The errors involved in this projection are thoroughfully analysed. Third, a probabilistic ...

Underwater Detection, Classification and Tracking Using Wideband Sonar

The Ocean Systems Laboratory is developing bio-inspired wideband acoustic sensing methods for underwater target detection and tracking. In this paper we explore what we expect to gain from wideband sonar used alone or in combination with ubiquitous sidescan and forward-look imaging sonars. The wideband sensors themselves are based on bottlenose dolphin sonar, covering a frequency band from arou...

Robust Tracking of Multiple Objects in Sector-Scan Sonar Image Sequences Using Optical Flow Motion Estimation

The fast update rate and good performance of new generation electronic sector scanning sonars is now allowing practicable use of temporal information for signal processing tasks such as object classification and motion estimation. Problems remain, however, as objects change appearance, merge, maneuver, move in and out of the field of view, and split due to poor segmentation. This paper presents...

Automated Detection of Mine-Like Objects in Side Scan Sonar Imagery /

of the Dissertation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii Chapter