Support for new DJI Zenmuse L3 dual cameras

PIX4Dmatic PIX4Dmatic Feature Request
1

The new sensor has two 100MP cameras. They are placed next to each other with a slight rotation.

It’s porpuse is to generate a extra wide covering area of photos during LiDAR captures.

The thing is that it is lacking the roll rotation, so instead of getting two cameras in the same position, one aiming right and the other left, we end up with both looking straigth down.

This messes up with the calibration process, specially in dense forest areas.

Only software that dealt with this so far is DJI Terra.

2

Hello,

Thank you for your patience while we investigated this issue.

We have confirmed that the calibration difficulty is occurring because PIX4Dmatic does not yet automatically account for the fixed tilt angle of the L3’s dual-lens system. Currently, the software reads the gimbal orientation from the images but does not apply the necessary geometric offset for the specific angle of the cameras.

We have logged a development task to add full support for the DJI Zenmuse L3 dual cameras to resolve this.

Thank you for bringing this to our attention. Please don’t hesitate to let me know if you have any further questions.

Best regards,

Alexey

3

I noticed the same issue. I tried to process data from the Zenmuse L3 and it worked great with DJI Terra but then I tried it with Pix4d Matic and noticed that the software does not account for the offset angles of the dual camera rig. Any idea when Pix4d may be able to supply a fix for this? Do you need any sample data?

Pix4dmatic Zenmuse L3
Pix4dmatic Zenmuse L31840×1011 395 KB

4

Hello,

Thank you for sharing your feedback. Please accept my apologies for the delay in our response.

I have confirmed with our R&D team that the request to support the offset angles for the L3 dual camera rig has been recorded. It is currently difficult to provide a specific timeline for when this fix will be implemented, but the team is aware of the requirement.

Regarding your offer for data, we already have the necessary datasets for testing, so there is no need to send samples at this time.

We appreciate your patience while we work on this improvement.

Kind regards,

Alexey

5

Has the issue been resolved? I saw that the new update to PIX4Dmapper already supports photos from the L3. Will the correct photo orientation and location work after updating PIX4Dmapper to the latest version?

6

Hello,

Thank you for following up on the DJI Zenmuse L3 integration.

No, the current update to PIX4Dmapper does not resolve the photo orientation issues. While the recent update introduces initial support for the camera sensor, it does not support the offset angles. Please note that at the moment we have not yet planned to bring full L3 support to PIX4Dmapper.

The good news is that our development team is actively working on adding the proper, full support for the L3 sensor within PIX4Dmatic. This upcoming update will ensure the correct initial orientation for each input image. We expect this fix to be included in one of the next PIX4Dmatic releases.

Kind regards,

Alexey

7

Hi, is there an ETA for L3 support yet? Thanks

8

Great to hear Pix4D is going to be supporting this sensor. After facing the same issue, we found that the roll offset was not included in the Exif metadata. Seemingly DJI Terra adds an offset from the gimbal for each LV and RV camera.

As a workaround, we used ExifTools to extract the gimbal angle and apply a +/-22.5° offset and either export a text file, or input back into the image Exif metadata. If anyone wants further information, please feel free to reach out at jason@geodronesurvey.com

9

Hello,

I’m happy to let you know that we released PIX4Dmatic 2.4.0 today, which includes proper support for the DJI L3 camera offset.

You can download the new release here: Download Pix4D software

Please let us know if you have any further questions or comments.

Kind regards,

Alexey