Triton Perspective - Manual (Page 92)

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Interpretation Options
Bathy Profile: Selecting the 'Bathy Profile' option from the toolbar button or Modality menu
in Perspective Map will switch the cursor to the Profile mode for evaluating features
seen in the Map View.
A-B: Subtracts co-registered DTMs to look for changes to bathymetry. This algorithm does
a direct pixel to pixel comparison at each grid node.
Change Detection: Subtracts co-registered DTMs to look for changes to bathymetry. This
algorithm differs slightly from the A-B algorithm in that it also includes a statistical
neighborhood approach to account for mis-registration between layers. Operating the
Change Detection tool is basically the same as the A-B tool.
Blink Comparator: Visual comparison of two overlapping layers is made easy with this tool.
The 'Blink Comparator' allows the user to quickly turn on/off a layer or can be set to
cycle a layer on/off to help identify differences in the layers.
Statistics: This gives an overview of the data used to create the image including coverage
and line statistics.
5.2 Create DTM
5.2.1 Bathymetry Processing Wizard
Bathymetry data can be processed in Perspective Map using the BathyOne Wizard.
Presented below are a few ways to launch the bathymetry processing wizard.
During the raw data import process, the navigation data loads into the project first. If the raw
data files contain bathymetry data then the BathyOne Wizard will automatically launch and
the bathymetry data can be processed as part of the import process.
However if the navigation data needs repeat processing, the BathyOne Wizard can be
canceled during the import process and re-launched after the navigation data is properly
processed.
For more information regarding Navigation Processing Workflows, visit Section 4.3.
There are two methods to launch the BathyOne Wizard manually from within Perspective
Map, from the File Tree and using the toolbar button.
1. To launch the wizard from the File Tree, right-click on the Imagery/Bathymetry node and
select 'Create' as shown below: