Processing, presentation, and data basing of acoustic imagery

Author

Lingsch, Stephen ; Robinson, Christopher

Author_Institution

Div. of Geophys. Techniques, Naval Oceanogr. Office, Stennis Space Center, MS, USA

Volume

3

fYear

1995

fDate

9-12 Oct 1995

Firstpage

1582

Abstract

The Naval Oceanographic Office (NAVOCEANO) collects and processes acoustic imagery from multiple sensors at various frequencies. These currently include the towed 12-kHz SEAMAP system, the towed 100-kHz hydrographic sidescan, and the hull-mounted multibeam bathymetric sonars. The hull-mounted systems at NAVOCEANO providing acoustic imagery include the 12-kHz Sonar Array Survey System (SASS) and coming on-line in the near future, the 12-kHz SIMRAD 121A. Three issues arise when dealing with multiple imaging sensors: data processing, data volume (data basing), and data presentation and visualization for analysis. To meet the need, NAVOCEANO has developed a generic image processing system, the UNIfied Sonar Image Processing System (UNISIPS) for processing acoustic imagery from various systems. This system includes signal processing, image processing, and georeferencing (digital mosaicing) of the acoustic imagery. Once processed by UNISIPS, these data are entered into a large Geographic Information System (GIS), the Comprehensive Environmental Assessment System (CEAS), where they are integrated with other co-registered data sets for presentation and interpretation. Within CEAS the capability to overlay other data types includes bathymetry, geology, gravity, and altimetry for analysis. The presentation/display/visualization is performed in both two and three dimensions. Presented within the paper are the techniques used for data basing, processing, and data presentation

Keywords

bathymetry; computer graphics; data visualisation; geographic information systems; geophysical signal processing; geophysical techniques; geophysics computing; oceanographic techniques; seafloor phenomena; sonar imaging; sonar signal processing; GIS; NAVOCEANO; SASS; SEAMAP; SIMRAD; Sonar Array Survey System; acoustic image; acoustic imagery; bathymetry; computer graphics; data archiving; data basing; data presentation; data processing; digital mosaicing; geographic information system; geophysical measurement technique; geophysics computing; georeferencing; hull-mounted systems; image registration; ocean; scientific visualization; sea; seafloor topography; signal processing; sonar image processing; Acoustic arrays; Acoustic imaging; Acoustic sensors; Data visualization; Frequency; Geographic Information Systems; Image processing; Image sensors; Oceanographic techniques; Sonar;

fLanguage

English

Publisher

ieee

Conference_Titel

OCEANS '95. MTS/IEEE. Challenges of Our Changing Global Environment. Conference Proceedings.

Conference_Location

San Diego, CA

Print_ISBN

0-933957-14-9

Type

conf

DOI

10.1109/OCEANS.1995.528723

Filename

528723