Comment by JP on February 21, 2013 at 11:02am

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. 

Comment by Christiaan van Vollenstee on February 21, 2013 at 11:12am

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.

Comment by LanMark on February 21, 2013 at 11:56am

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.

Comment by David on February 21, 2013 at 7:35pm

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

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

Comment by c j g on February 22, 2013 at 3:58am

@JP ... thanks for sharing your efforts. After reading your stuff,

1) did you compare (science) the quality of this one cam setup with your two cam setup, i am curious if vibrations are an issue?

2) did you also own or a test the 230HS cam

Thanx .cj

Comment by Alex Wheeler on March 3, 2013 at 11:33pm

Can you please point me in the wright direction? I am very interested in aerial mapping and eventually 3d terrain mapping I would like to read about some information on how to begin. Is there a beginner guide or tutorial on the basic set up from beginning to end? I have gathered some information from other people’s questions from the internet but the info is all mixed up. Can I get the info all in one place? Please advise

Comment by David on March 3, 2013 at 11:57pm

@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.

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