On Processing and Registration of Forward-Scan Acoustic Video Imagery

Authors:
S. Negahdaripour;P. Firoozfam;P. Sabzmeydani
Affiliations:
University of Miami, Coral Gables, FL;University of Miami, Coral Gables, FL;University of Miami, Coral Gables, FL
Venue:
CRV '05 Proceedings of the 2nd Canadian conference on Computer and Robot Vision
Year:
2005

Citing 0
Cited 2

3-D Motion Estimation for Positioning from 2-D Acoustic Video Imagery

IbPRIA '07 Proceedings of the 3rd Iberian conference on Pattern Recognition and Image Analysis, Part II
3-D motion estimation by integrating visual cues in 2-D multi-modal opti-acoustic stereo sequences

Computer Vision and Image Understanding

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Abstract

Producing high-resolution underwater imagery in range of visibility conditions is a capability of critical demand for a number of applications. New generation of forward-scan acoustic video cameras, becoming available for commercial applications in recent years, produce images with considerably more target details that optical systems in turbid waters. Previous computer processing of sonar imagery has dominantly involved target segmentation, classification and recognition by exploiting 2-D visual cues from texture, or object/shadow shape in a single frame. Processing of video is becoming more and more important because of various applications that involve target tracking, object identification in search and inspection, self localization and mapping, among many other applications. This paper addresses the image registration problem for acoustic video, and the pre-processing steps to be applied to the raw video from a DIDSON acoustic camera for image calibration, filtering and enhancement to achieve reliable results.