Incorporating DJI photos with incorrect EXIF GPS data

PIX4Dmapper
1

To help preserve battery, I took a few photos with my DJI Mavic 2 Pro not in flight. This method didn’t seem to work very well, because the drone frequently became uncalibrated. The EXIF data from some photos therefore erroneously reads as follows:

image

Here is the resulting map view in Pix4D:

image
image1297×694 196 KB

The processing is finished but I cannot see anything in the rayCloud:

image
image1675×881 111 KB

You can see that I tried adding a Processing Area .kml from Google Earth. I figured that the rayCloud camera was very zoomed out, and that was the reason I couldn’t see anything. I tried selecting the Processing Area and zooming into the selection, but this did not work.

Any suggestions? Should I just not incorporate the photos with the bad EXIF data?

2

Hi,

Thank you for your message. I will reply in the direct ticket. Once a solution is found, I will post it here.

Cheers

3

Hi Daniele,

The solution is to sort the photos in the Image Properties Editor by latitude or longitude and disable them, as I did here:

image
image786×401 71.2 KB

I am now dealing with a new issue that is detailed in this thread: how to visualize blocks to aid placement of manual tie points?

I have 4 blocks of data after processing. I’ve been adding manual tie points, hoping to connect the photos of each block. The issue is it seems the only way to add a MTP is by first clicking a point in the rayCloud, and this does not give you all the images to work with, only the few where the ATP that you clicked is visible.

5

Hi,

We are glad to hear that disabling the acquisition with no geolocation was helpful to get satisfactory results.

Regarding your second question, I suggest you post directly in the mentioned thread or contact us directly at Pix4D Personal Support. Don’t forget to send the full quality report.

Cheers