Triton Sidescan - Manual (Page 18)

Page 15
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Include Adjacent Cells - uses the values in adjacent cells to calculate value of
filled cell.
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Non-Zero Shadow - fills sidescan shadows where there is no data with a zero
amplitude for each grid cell in the shadow so imagery behind the mosaic does
not show through.
 Channel Sampling Method
Both the Downsampling and Combine Overlap options refer to the method by
which overlapping data from within one line is handled.
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Downsampling: refers to the across track element (sample to sample within a
ping).
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Combine Overlapping: refers to the merging of samples when a line overlaps
itself.
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Each has the following options:
 Average - the average pixel value is calculated and used
 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
 Apply To
Allows the users to apply the same settings to all survey data lines or to apply
different setting to different lines.
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All Checkbox: selecting this will apply all setting on this page to all lines being
processed. Leaving this checkbox not checked will enable users to set
different clipping and fill options for each line by selecting the lines from the
drop down list.