A data set for change detection in port environments using sidescan sonar


  1. Myers, V.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN)
Within the context of route survey operations, change detection is the process by which targets are detected by comparing current sonar data with historical surveys. The technique is of particular interest for detecting objects in ports and harbours where debris and a high density of man-made objects can create a prohibitive number of false alarms for traditional methods examining sonar imagery. In order to promote and encourage research into automated change detection algorithms, a database of sidescan sonar images has been produced; the images are taken from two surveys nearly a month apart carried out by the Canadian Navy using the Interim Remote Minehunting and Disposal System (IRMDS) carrying a Klein 5500 sidescan sonar during the winter of 2008. Various target signatures were simulated and injected into the second survey using a ray tracing method and placed at specific locations chosen to test different cases normally arising during route survey operations. The images have been processed and georeferenced at different resolutions and the test cases carefully documented in order to provide researchers with data in an easily usable format with which to develop and test algorithms and techniques.

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Report Number
DRDC-ATLANTIC-TM-2008-247 — Technical Memorandum
Date of publication
01 Mar 2009
Number of Pages
Electronic Document(PDF)

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