| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| theodoreeugene779 | "Dear Madam / Sir. We, OOO "KULIGINSKOE LIMITED LIABILITY COMPANY As a Re-Seller company and a representative to a major refinery in Russian Federat..." | Read more » | over 4 years ago | |||
| tanyadike | " Anyone interested in buying Nigerian BLCO crude oil sample? " | Read more » | over 5 years ago | |||
| gauravano | "test " | Read more » | over 6 years ago | |||
| ashishkochaar | "Hope is the best thing when you see that there is no another option I have here to get the things. I hope for the best and expect a little. Like ye..." | Read more » | about 7 years ago | |||
| platteferguson | "So my million dollar question do I buy 3 or 4 inspire 2.0 with extra batteries or go for the new Ebee SQ ag drone for 12-15k with the multi spec wi..." | Read more » | over 7 years ago | |||
| warren | "Ah, i see you've already approached this topic, sorry to repeat! " | Read more » | about 8 years ago | |||
| warren | "Also - I noticed you're using a compact fluorescent lamp as a light source - but are you measuring absorption? In that case you probably want a bro..." | Read more » | about 8 years ago | |||
| iamkat | "Ah that's really helpful to know, thank you! " | Read more » | about 8 years ago | |||
| cfastie | "Thanks for the details. After you use a CFL to calibrate the spectrometer, replace the CFL with another light source. If the spectrometer is not d..." | Read more » | about 8 years ago | |||
| iamkat | "Hi Chris, what do you mean by a standard lycopene extraction? The UV spec of lycopene in ether can be found here http://link.springer.com/article/..." | Read more » | about 8 years ago | |||
| cfastie | "The sensors in consumer cameras have very low sensitivity at wavelengths shorter that 400 nm. Some cameras are slightly sensitive down to about 380..." | Read more » | about 8 years ago | |||
| cfastie | "Kat, Do you have a standard lycopene extraction? How do know what the spectrum of lycopene should look like? Are you using a fluorescent lamp to ..." | Read more » | about 8 years ago | |||
| Claytonb | "@Artichoke23 - What I have seen in testing is that a red filter will give you much greater contrast and sensitivity in crop vigor. A good example i..." | Read more » | about 8 years ago | |||
| Artichoke23 | "@Claytonb, This is a great post and comparison. I have a couple questions, I'm using the V2 NoIR Raspberry Pi camera and #2007 filter they provide ..." | Read more » | about 8 years ago | |||
| everydayduffy | "Thank you @Claytonb. " | Read more » | over 8 years ago | |||
| Claytonb | "@everydayduffy -For the above comparison I used the calibration option in Pix4D pro. It consisted of drawing a region of interest on the image of t..." | Read more » | over 8 years ago | |||
| everydayduffy | "Thanks @Claytonb for this really interesting post. Could you detail a bit more about how you calibrated your images with reflectance targets please? " | Read more » | over 8 years ago | |||
| warren | "I really liked this note too! I'm interested in how this dataset could be used as a "test set" for software development as well. There are a range ..." | Read more » | over 8 years ago | |||
| Claytonb | "Hi Alex, I would recommend contacting Charlie Langlois at Labsphere- clanglois@labsphere.com They can make affordable($300 range)targets that are s..." | Read more » | over 8 years ago | |||
| admaltais | "Hi Claytonb, Really interesting analysis. I currently use a Canon S110 modified by Sensfly for NDVI and I wondered if there could be a big differen..." | Read more » | over 8 years ago | |||
| WhiteRabbit | "Per request, I just now changed the title to something more descriptive. Thanks for your post, Chris. " | Read more » | over 10 years ago | |||
| warren | "Its a great question and I'd like to star this post but do you think you could change the title to something more descriptive? Thanks! " | Read more » | over 10 years ago | |||
| warren | "Chris's explanation is right on -- the PL kit is great at comparative spectral analysis, but unless you have a light source with an already known s..." | Read more » | over 10 years ago | |||
| cfastie | "The spectral plot of grass that you are interested in replicating is a plot of reflectance. This curve represents a very well known pattern of refl..." | Read more » | over 10 years ago |