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  • David March 3, 2013 at 10:57pm

    @Alex, If you are interested in going to a workshop that covers this material, check out this event.

    http://fieldofviewllc.com/workshops   If you can't make the March one, there will be another one in August.

  • David February 21, 2013 at 6:35pm

    NDVI can be calculated from the reflectance of artificial light. That is how greenseeker works...

    http://www.ntechindustries.com/demo.html

  • LanMark February 21, 2013 at 10:56am

    Hopefully this is not a silly question but can NDVI be done at night?   We have much brighter lights that are very small and light,.. like XM-L Cree bulbs that output 1000+ lumens per bulb..  is it at all possible to do a NDVI flight using a UAV with the camera and lights.. or do you really need sunlight to do it..   NDVI uses visible + IR relectivity so in theory it does not need to be the sun.

  • Christiaan van Vollenstee February 21, 2013 at 10:12am

    I am busy working on a winning formula for my UAV setup. Once it is done I am going in the same direction using dronemapper. What they have done is so impressive.

  • JP February 21, 2013 at 10:02am

    The band math calculations were completed with OTB Orfeo open source remote sensing package.. it is nice because it preserves the geotiff information / metadata. This is a quick follow up to the last blog post with NDVI generation using two camera system. 

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