Triton Perspective - Manual (Page 142)

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 Maximum - The pixel with the highest value (maximum) is used.
 Minimum - The pixel with the lowest value (minimum) is used.
 RMS - Root Mean Square is a statistical measure of the magnitude of pixel values. It is
the square root of the mean of the squares of the pixel values.
 Skip - Does not apply this step, overlap is handled by input line order.
Navigation
This box is checked by default. The standard setting will apply a boxcar filter using twelve
navigation updates to create a running mean position.
Fill Between Pings
 None - Do not fill.
 Interpretation - Calculates a smooth transition from the pixels in one swath to the next.
(default).
Source of Heading
This will tell Perspective what to use as the source for the heading when creating the mosaic.
 Sensor – Use the heading sensor which is integrated into the towfish as the source.
 Ship - Use the heading that is recorded for the ship as the source.
 Line Median - The mean line heading, useful when the survey lines are straight.
Port Channel / Starboard Channel
Select which channels of data to use in the mosaic. Typically in a dual frequency system Ch
3 and Ch 4 will be a higher frequency with better resolution but shorter range than Ch 1 and
Ch 2.
Inner/Outer Boundary Clipping
Allows parts of the swath to be blanked out, for example the outer ends of a sidescan swath
may be noisy and contain no data, likewise the area directly beneath the towfish is often not
used.
Apply To
The parameters set in 'Choose Mosaic Settings' and 'Choose Line Settings' will be applied to
either 'All' lines or only to a user specified line.
Click 'Finish' to generate the mosaic: