Triton Perspective - Manual (Page 139)

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General Settings:
Resolution: Enter the resolution of the mosaic in meters per pixel. Use any of the predefined
values or enter a custom value.
Combine Overlapping Lines Using: There are four options as shown in the image below:
 Maximum - Will cause stronger returns to "shine-through" an overlapping line. (default).
 Minimum - Will cause weaker returns to be preserved when lines overlap.
 Over - Lines will be displayed based only on the order in which they were mosaiced.
 No Step - No merging will take place, existing imagery will be preserved, new lines will
not overwrite.
Constrain to map view: Only generates the mosaic in the visible map view window.
Automatic Gain Control: Applies an automatic gain to each line to account for signal
attenuation in analog data.
Single Channel Auto Flip:
Where a mosaic has sufficient raw data overlap it may be possible to mosaic only one
channel on lines running in opposite directions. Perspective detects the line direction and
selects the correct channel. The resulting mosaic will have shadows only on one side of all
objects, which can give superior results by removing the "double shadow" problem.
The user needs to select the 'On' box to enable this option, and can select the starting line and
also the starting channel.
Transducer Offsets (hull mounted):
When the sidescan sonar is hull mounted, instead of using layback, transducer offsets need to
be entered to account for the difference in position between the GPS receivers and the sonar
transducer.
The user needs to select the 'On' box to enable this option, and can select the across track and
along track offsets.
Load/Save Options:
There are two additional buttons available on the page of the MosaicOne Wizard, 'Load' and
'Save'.