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Part No. 96000001
5.6.12 TruePix™, Snippets, Water Column Enable and Intensity Enable
If the options TruePix™, Snippets or Water Column are installed (installed options are shown in Help
| Options), those features can be turned on and off by ticking the box next to appropriate option
enable. Intensity Enable will output the bottom detection intensity value in the bathymetry packet;
this is a standard feature.
5.6.12.1 TruePix™ Explained
TruePix™ is a new backscatter imagery process developed by R2Sonic to combine the advantages of
the traditional side scan record and Snippets while eliminating their respective disadvantages.
Side scan records are:
• Formed independently from Bottom detection
• Compact
• Inclusive of water column data in the Nadir region
• Suitable for the pairing of highlights and targets
Snippets records:
• Suppress reverberation
• Report angle of the centre of snippets record for better colocation of backscatter and
bathymetry
TruePix™ possesses all of the above advantages and more.
The TruePix™ operation processes all beams into a single continuous times series record for both
the port and starboard regions. This continuous record contains intensity and angle values for every
point in the record (approximately 10,000). The range corresponds to the sample number times the
sample interval, (which is 1/sample rate) like a regular side scan; along with the angular information,
the point’s elevation and distance from nadir can be calculated.
On the Imagery tab, the user can select to store the Magnitude or the Magnitude + Angle data. The
Magnitude + Angle data option will provide the geolocated information (preferred); storing
Magnitude data provides only imagery.
Figure 82: TruePix™ image of wreck debris and seagrass
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