| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Yes it does. " | Read more » | over 8 years ago | |||
| cfastie | "Does this comment box work? " | Read more » | over 8 years ago | |||
| cfastie | "I agree with Jeff that those results seem to suggest that whatever full spectrum source is used the same general spectral response is found (more b..." | Read more » | over 8 years ago | |||
| cfastie | "I agree with Jeff that those results seem to suggest that whatever full spectrum source is used the same general spectral response is found (more b..." | Read more » | over 8 years ago | |||
| cfastie | "I agree with Jeff that those results seem to suggest that whatever full spectrum source is used the same general spectral response is found (more b..." | Read more » | over 8 years ago | |||
| cfastie | "Hey @dorncox, @cversek, @mstenta, @donblair. Remember when we flew a kite at iFarm? That was awesome. " | Read more » | over 8 years ago | |||
| cfastie | "This is a great discovery. It will be good to learn how this color works with a red filter like Wratten 25. I will keep my eye out for Boom Chicka ..." | Read more » | over 8 years ago | |||
| cfastie | "This looks like nicely elegant and simple solution. I might add two things: 1) a lanyard that connects the camera to the second smallest pole secti..." | Read more » | over 8 years ago | |||
| cfastie | "Ranon those are excellent assembly diagrams. Did you make those in Fusion 360? Is there a special mode for that? It looks like a week of work. Wel..." | Read more » | over 8 years ago | |||
| cfastie | "Thanks, that seems to work to open the f3d file (it's not done uploading it yet). I guess another way is for us to share the files at the Autodesk ..." | Read more » | over 8 years ago | |||
| cfastie | "Fusion 360 did not allow me to open the f3d file. It said that opening local files was not supported. I was not expecting that. So I opened the mo..." | Read more » | over 8 years ago | |||
| cfastie | "This is a really helpful report. You broke some new ground (but no cameras) and added lots of good information. You might be right that the line j..." | Read more » | over 8 years ago | |||
| cfastie | "The new bulge looks perfect. I will give the new f3d file a spin tonight. Thanks. " | Read more » | over 8 years ago | |||
| cfastie | "The camera used to make that orthophoto image was a Canon PowerShot A590 from 2008. These are available on ebay for about US$30.00. It is a very g..." | Read more » | over 8 years ago | |||
| cfastie | "This is a great illustration that all of the standard white balance settings are very similar. The custom white balance setting used to produce pho..." | Read more » | over 8 years ago | |||
| cfastie | "Most surfaces reflect both NIR and visible light. Ideally you would have some targets that reflect various amounts of both and you would know the p..." | Read more » | over 8 years ago | |||
| cfastie | "Did you remove the camera's IR block filter before you installed the red filter? If so, the blue channel in your photos should be a good NIR photo..." | Read more » | over 8 years ago | |||
| cfastie | "Yes sunlight is important. The light illuminating the plant should have about the same proportion of visible:NIR as sunlight or the results will be..." | Read more » | over 8 years ago | |||
| cfastie | "That UDEMY course is very good. I have been watching videos and making the models as he does. I think there is hope. I still can't make any useful ..." | Read more » | over 8 years ago | |||
| cfastie | "Cristofer, If you replaced the camera's IR block filter with a red filter (Rosco #19 or Wratten 25) The blue channel should capture mostly near in..." | Read more » | over 8 years ago | |||
| cfastie | "1) When you said shortcut, you meant I could for example use a blue led or a blue paint as target? Or do you have another suggestion? An LED or ot..." | Read more » | over 8 years ago | |||
| cfastie | "Hi Rebecca, Your NDVI values are a little low, but that is to be expected when the procedure is not calibrated. To get the NDVI values closer to t..." | Read more » | over 8 years ago | |||
| cfastie | "David, When using a blue (#2007) filter, the red channel records NIR and the blue channel records visible blue light which is used to compute NDVI...." | Read more » | over 8 years ago | |||
| cfastie | "Those NDVI images look reasonable. Deep shadows are not being handled very well so they are assigned NDVI values of 1.0 (magenta) or apparently -1...." | Read more » | over 8 years ago |