| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "I found that V4L2 driver apparently makes it possible to use the raspberry pi camera in Firefox with webrtc, the API Spectral Workbench uses: https..." | Read more » | over 7 years ago | |||
| Siphirobe | "I was wondering the same thing, just with the PiNoIR camera since I am more interested in remote sensing of vegetation. " | Read more » | over 7 years ago | |||
| stef | "@warren After sleeping it over, realized that due to the no IR filter of the raspberry the bandwidth response will be different from the published..." | Read more » | over 7 years ago | |||
| stef | "@warren Here is a link http://www.khufkens.com/projects/ov5647-spectral-response/ and here is a zip file khufkens-pi-camera-response-curves-3342e..." | Read more » | over 7 years ago | |||
| warren | "That's a great thing to point out -- do you per chance have a link to the spectral bandwidth of the sensors? Thanks! " | Read more » | over 7 years ago | |||
| stef | "The BIG advantage of the Raspberry Pi is the use of the Sony IMX298 sensor whose spectral bandwidth is known and is 16 megapixel sensor. Much like ..." | Read more » | over 7 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 » | over 7 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 » | over 7 years ago | |||
| cfastie | "You can try other colors for doing a custom white balance. See this note: https://publiclab.org/notes/Claytonb/08-13-2016/plant-health-ndvi-white-b..." | Read more » | over 7 years ago | |||
| spandan1234 | "The NDVI map looks good. But is there anything that can be done to better the results. The information required is totally visible here. Any sugges..." | Read more » | over 7 years ago | |||
| cfastie | "Your photo looks good. An NDVI image made with the Photomonitoring plugin for Fiji also looks good. That might be a better way to process your phot..." | Read more » | over 7 years ago | |||
| spandan1234 | "Hi, I have taken some images directly from a Canon SX280 with a red filter. Then I calibrated it using the reflectance from red paper in the shade ..." | Read more » | over 7 years ago | |||
| thomashooper | "That is very fantastic from the design, the construct, the starting, the video, the images...Everyone said a new era of computer assisted drug desi..." | Read more » | almost 8 years ago | |||
| everydayduffy | "Thank you @Claytonb. " | Read more » | almost 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 » | almost 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 » | almost 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 » | almost 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 » | almost 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 » | almost 8 years ago | |||
| cfastie | "There is a discussion of common materials with spectral data in the comments here: https://publiclab.org/notes/LaPa/03-31-2016/raspberry-noir-cam-..." | Read more » | almost 8 years ago | |||
| Gianni_Gadaleta | "excellent article Chris. based on your experience you can advise us some targets already spectrally characterized, so we can finally start using th..." | Read more » | almost 8 years ago | |||
| viechdokter | "Thanx Warren, it's kinda "scary" how nice and positive everyone here on the forum reacts to my musings/problems/requests... Almost looks like you..." | Read more » | about 8 years ago | |||
| warren | "Thanks, I put a few notes to coders in there to try to kick it off. For reference, we def. need help from everyone, coding skills aside -- take a l..." | Read more » | about 8 years ago | |||
| viechdokter | "Okay, I just created an account and mentioned the issue there. I am not a good programmer, so I can't contribute any code, but I am a user and can ..." | Read more » | about 8 years ago |