Before and after the fly I took the photos of my Reflectance panels. But for some reason I got this message saying that the panels were not found. Any ideas why?
There is a way to manually select the panels?
Unfortunately, there is no way to manually import panel images. The targets are undetected mostly if they are overexposed or if the image is blurry, or if the QR code cannot be seen. We recommend to follow the best practices for automatic detection: https://support.pix4d.com/hc/en-us/articles/206494883-Radiometric-calibration-target#label3
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Those are the photos of the reflectance panels that Fields didn’t found.
Hi, Can you upload the images along with a few other images of your dataset in google drive? I will pass on to our developers so that they can make our automatic detection library better or so that we can at least identify the issues. Thank you 
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Yes of course. On this link you´ll find the before and after flying the photos I took of the reflectance panels. I use the QR trigger photo from the Micasense app for taking the photos.
Before and after reflectance panels
Thanks
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Thank you so much. I will pass on the images for feedback to our developers. For the future, we recommend taking several captures of the target (3 sets before flight, 3 sets after flight)
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Thank you! They already got in contact with me.
Lionel
Hi Lionel,
We have a new target detection library in version 1.9 and the targets should now get detected correctly. You can download version 1.9 from here: https://www.pix4d.com/download/pix4dfields.
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Yes, it works perfectly now!