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Ocean Systems Lab Heriot-Watt University Ocean Systems Laboratory

Seminar Information

Title: Acoustic Stereo Imaging (ASI) System
Date: Thu 5 Mar 2009
Time: 11:00
Location: EM 2.33
Speaker: Hassan Assalih
PhD student at OSL
Description: In this seminar, 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 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 suggests 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.

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