Achie
Achieving Accur
ving Accurate Results
ate Results
Tips on scanning with the Na
Tips on scanning with the NavVis VLX
vVis VLX
The following describes some tips on achieving an accurate scan.
Walking Speed
Walk at a slow pace. This will help to ensure good quality.
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Moving too quickly may cause a low density point cloud and blurry photos.
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Moving too quickly also degrades the quality in terms of accuracy and it increases the
changes issues with SLAM. In particular you should avoid fast accelerations, rapid slow
downs and sudden movements, abrupt stops or fast rotations. It is better to move slowly
and with gentle, flowing continuous movements.
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When taking pictures, make sure you stand still without any motion, since motion blur
cannot be compensated for. Do not rush, instead consider increasing the distance between
pictures or capturing images only in one direction, while walking back without taking any.
Orientation
Keep the device as upright as possible while scanning. Tilting the device may result in your body
being visible in the point cloud or photos. Avoid sudden or jerky movements.
Do not turn the device upside down while scanning.
Distance from Objects
The best quality images and point clouds are captured 1 - 10 m away from objects. No benefit is
gained getting closer than 1 m to objects.
Multiple Perspectives
Scan objects from many different perspectives for a more complete point cloud. For example:
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Walk both up and down stairs.
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Walk in both directions through a corridor.
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Rotate 360° in corners and tight spaces.
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Walk around an object of interest multiple times.
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Rotate 90° to the left and right before going up or down stairs.
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You can lift the device overhead or crouch down to scan on top or below objects.
Na
NavVis VLX
vVis VLX
User Guide
User Guide
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Summary of Contents for VLX
Page 1: ...NAVVIS I NavVis VLX User Guide...
Page 2: ...Na NavVis VLX 3 vVis VLX 3 User Guide User Guide...
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Page 23: ...Contents of the box Na NavVis VLX vVis VLX User Guide User Guide 21 21...
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Page 73: ...Period Apostrophe Round brackets Comma Na NavVis VLX vVis VLX User Guide User Guide 71 71...
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Page 100: ...F FoV Side camer oV Side cameras as Na NavVis VLX vVis VLX User Guide User Guide 98 98...
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