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Occasional Contributor
Posts: 5
Registered: ‎05-03-2018
Accepted Solution

Choice of spectral band for SGM and EATE

I am generating point clouds from Pleiades tri-stereo images. I had assumed that all bands would be used, but now I realise that single band must be specified. Which band generally works best of B, G, R and NIR? The area I am working in is the lower Himalaya, with urban, forest and high mountain areas.

Technical Evangelist
Posts: 737
Registered: ‎10-01-2015

Re: Choice of spectral band for SGM and EATE

Hi jdehls,

 

Personally I'd go with the bands least affected by atmospheric attenuation (and therefore hopefully having the greatest contrast), which would usually mean Red or NIR. Probably Red.

 

But I'm not a Photogrammetrist :-)

 

Cheers

 

Ian Anderson
Chief Product Owner, Desktop Remote Sensing
Hexagon Geospatial
Technical Evangelist
Posts: 737
Registered: ‎10-01-2015

Re: Choice of spectral band for SGM and EATE

..And remember that in Pleiades imagery (and most SPOT-6 and -7), the red wavelength is the first band stored in the image file (since the data are stored in the RGBN order, rather than the more normal BGRN).

 

Cheers

 

Ian Anderson
Chief Product Owner, Desktop Remote Sensing
Hexagon Geospatial
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