RTC360 - Panoramic Images Shows Artefacts, Shadows Caused by Parallax, no Colored Stripes on Tablet

RTC360 - Panoramic Images Shows Artefacts, Shadows Caused by Parallax, no Colored Stripes on Tablet

Problem 


Leica RTC360

Sometimes following artefacts /shadows are visible at RTC360 pano images:
RTC360 - Artefacts / Shadows
RTC360 - Parallax Error (Photo vs Point Cloud)
RTC360 - Parallax Error (Photo vs Point Cloud)


















Leica Cyclone FIELD 360

This can also happen with the Field 360 software using the tablet:
Leica Cyclone FIELD 360 - Uncoloured Stripes (from RTC360)
In this example, some stripes are not coloured on the Apple iPad tablet.  This the case mostly in close range.

Leica Cyclone CORE

Objects like this are then coloured (inpainting method) in office software (e.g. Cyclone), but the quality can vary:
Leica Cyclone CORE - Inpainting Method (RTC360 scans)

Solution


This is caused by the parallax between the camera and the laser - the parallax is always visible to the left of the object in the foreground.

The defects in the panoramic images are created because there are areas that the scanner literally does not see.  Hence there is no information available to do better in this context.

During the import into the office software the so-called 'inpainting' tries to replace the wrongly coloured pixels with the coloured in the neighbourhood.

Unfortunately, this might not always succeed satisfactorily.

    • Related Articles

    • RTC360 - Tilt Between Stations

      The technical specification of the tilt measurement accuracy of the RTC360 is 180 arcseconds single standard deviation. That means that 3 of 1000 tilt readings can be 9 arcminutes off the plumb line. Comparing 2 stations with each other, one may find ...