System and method for automatic detection of a sonar contact

Details System and method for automatic detection of a sonar contact System and method for automatic detection of a sonar contact

2011-01-11

2011-01-11

Pihulic, Dan (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

Reexamination Certificate

active

07869306

ABSTRACT:
Systems and methods are provided for automatically detecting sonar contacts. The system comprises a data analyzer that integrates the raw data from a plurality of sonar detectors over a predetermined period of time, thereby providing integrated data characterizing a sonar image on a sonar display. A Hough transform module is configured to employ a Hough transform algorithm that transforms at least a portion of the integrated data to detect a substantially straight line in the sonar image.

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patent: 2005/0190951 (2005-09-01), Shyu
patent: 2010/0014387 (2010-01-01), Bick
Ballard, D.H.: “Generalizing the Hough Transform to Detect Arbitrary Shapes”; Computer Science Department, University of Rochester, Rochester, NY 04627, USA; Received Oct. 10, 1979; in revised form Sep. 9, 1980; received for publication Sep. 23, 1980; pp. 111-122.

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