Copyright © 1997-2008 Myriax Software Pty. Ltd.

Features of Echoview's 3D sonar, 2D sonar and Stationary sonar modules

• The Stationary sonar module is intended for detection and tracking of individual fish, where the sonar is mounted in a stationary position.
• The 2D sonar module is intended for detection of slices through schools in data from scanning sonars or non-vertically mounted multibeam sonars. It is also required for target detection and tracking applications where the sonar is attached to a moving platform.
• The 3D sonar module is intended for detection of whole fish schools as 3D objects. This allows the morphological and energetic analysis of whole schools.
• Special extended support for data from the Furuno FSV-30 sonar (Research version) available as an additional Advanced sonar module. Please contact Myriax for details.

Key shared features include:

• Data viewed as sector plot echograms using replay controls, or as standard echograms that are created from the individual beams using the beam select operator.
• Support for water-column backscatter data from a range of: multibeam sonars by Simrad-Mesotech, Kongsberg Maritime and Reson; scanning sonars by Furuno and Simrad; imaging sonar by Sound Metrics (DIDSON). View this help file page for a full list of currently supported echosounders.
• A range of virtual operators that allow manipulation and enhancement of multibeam data.
• Creation of 3D "echogram curtains" from individual pings, for placement alongsidedetected objects in 4D scenes .
• Ability to calibrate data by applying a correction to each individual beam.

Key features of the Stationary sonar module:

• Virtual operators for background object removal, noise reduction and target enhancement.
• Ability to detect individual targets within the data and visualize them as point targets.
• Ability to convert the detected targets into Echoview's "single target" data format. This allows fish tracking using Echoview's proven algorithm and opens up a huge range of editing, processing, visualization and analysis tools.

Key features of the 2D sonar module:

• All features of the Stationary sonar module, for both stationary and mobile platforms.
• Detection of three-dimensional bottom surfaces.
• Detection within individual pings of 2D objects - outlines of fish or slices through schools - which are converted to 3D objects and can be displayed in the 4D scene environment.
• Morphometric analysis of 3D objects for size and shape information.
• Integration analysis of data contained by detected 3D objects.
• Tracking of 3D objects with time, for a four-dimensional understanding of the shape and movement of fish or fish schools.
• An expanded set of virtual operators for pre-processing the data.

Key features of the 3D sonar module:

• All features of the 2D sonar module.
• Detection of 3D schools using the "cruise scanning" algorithm, which combines data from multiple pings to form a 3D object shell (including vacuoles).