Title :
Acoustic Stereo Imaging (ASI) system
Author :
Assalih, Hassan ; Petillot, Yvan ; Bell, Judith
Abstract :
In this paper, the preliminary design and evaluation of a real time underwater 3D reconstruction system using multiple sonar views from an acoustic camera are presented. The proposed system which is called Acoustic Stereo Imaging (ASI) consists of two relatively inexpensive acoustic sensors situated above each other with known distance (D) between them. The acoustic sensors are multi-beam, high resolution sonars like the ProViewerE P900E-20 sonar and DIDSON sonar. The problem to solve is very similar to stereo vision in classic video camera systems. The ASI Vertical configuration consists of two sonars situated above each other and assumes that all beams of the first sonar are aligned with the corresponding beams in the second sonar. In this configuration, we have derived the ASI geometry which solves the well known correspondence problem in classical video stereo systems.
Keywords :
acoustic signal processing; cameras; image processing; image sensors; oceanographic techniques; sonar; sonar imaging; sonar signal processing; stereo image processing; video cameras; visual perception; ASI system; DIDSON sonar; Dual-Frequency Identification Sonar; P900E-20 sonar; ProViewerE sonar; acoustic camera; acoustic sensors; acoustic stereo imaging; classic video camera system; stereo vision; underwater 3D reconstruction system; Acoustic beams; Acoustic imaging; Acoustic sensors; Cameras; High-resolution imaging; Image reconstruction; Real time systems; Sonar; Stereo vision; Underwater acoustics; 3D reconstruction; acoustic imaging; underwater imaging;
Conference_Titel :
OCEANS 2009 - EUROPE
Conference_Location :
Bremen
Print_ISBN :
978-1-4244-2522-8
Electronic_ISBN :
978-1-4244-2523-5
DOI :
10.1109/OCEANSE.2009.5278275
