DJI Phantom P4 Multispectral.

PIX4Dmapper PIX4Dmapper Questions/Troubleshooting
21

Hi any updates if Pix4D can process multispectral images from DJI P4 Multi-spectral?

22

Hello @deg123, You can use PIX4Dmapper or PIX4Dfields to process the images obtained from DJI Phantom 4 Multispectral.

23

Hi Kapil,

Do you also have Pix4Dfields users of DJI P4 Multispectral who are using Parrot calibration targets?

Thanks

24

Hello, We support Airinov Aircalib, Parrot, Micasense and the Sentera reflectance target in PIX4Dfields.

25

Hello, I have a question.
Can pix4d process a single image of the Phantom 4 Multispectral (i.e 1 set of 5 bands). Our project does not require a grid survey of multiple images. Rather we want to run our reflectance calculations off one set of bands?

I have tried both pix4d mapper and pix4d fields, but processing error occurs when tryingn to load in one set of bands only.

Thank you.

26

Hello Josh,
You should be able to process the single band out of the five bands. However, before you start the processing make sure to change the band configuration as shown in the figure below. By default, the blue band is used as a primary band so you are getting that error. Make sure to select the band that you are processing as shown in the figure below to process the project successfully.

image
image1692×1042 300 KB

27

Thank you, I tried this but still received a error “Error e0046: Processing failed. Could not start calibration: No relations.”

The image we are trying to process is over water, and I assume it is struggling to find tie points. We are attempting to monitor turbidity plumes using multispectral analysis.

If I provide a link to the multispectral image, would it be possible for you to try to ensure I am not missing a crucial step in PIX4dmapper?

28

Hello Josh, If that is the case, it is due to the area you are mapping. If your area of interest has water and if you are using other bands than blue or NIR, then it is really difficult to extract the key point. That is why you are getting processing failed messages. So, the only thing you could do is, try increasing the image overlap, and flight height which might help to calibrate images. You can increase the image front and side overlap to 90% and make sure to do a flight height of 50m or higher.