Pitch in EXIF of jpgs collected by MPP is far above 0 both for P4P v2 and M2P

Pitch in EXIF of jpgs collected by MPP is far above 0 both for P4P v2 and M2P. Approximately 5 degrees. Found it out now. Checked with many previously collected datasets. See screenshot attached.

No such problem in MPB with same hardware. All softwares and firmwares are up-to-date.

Please, fix it.

Vladimir Sviridov 15 मई 2021 23:36

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Neither Map Pilot Business nor Map Pilot Pro do anything that touches how the tags are written by the camera. We wish we could... The camera writes the tags and there is nothing anything SDK apps can do to change that process.

It is a bit hard to see but it looks like the images at the bottom there are pretty much straight down (nadir). On the aircraft this will be reported as being -90 degrees with 0 degrees being level with the aircraft.

Here is a sample of what is reported in the XMP data:

This is pretty much universal for all DJI tags and is what our Flat Maps system operates off of.

The pitch is not reported in the EXIF section of the tags as far as I know.

Whatever software that is must not like something but nothing is different in the tags between MPB and MPP. Feel free to send us a sample image to inspect but based on the images at the bottom there I am going to guess it says -90 or something close to it.

Zane 17 मई 2021 00:41

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Zane, thank you for comments.

Right, its XMP-header not EXIF that contains pitch values.

I attach screenshot individually georeferenced photo with metadata taken by P4P v2 in MPP.

Original DJI_0015.JPG can be downloaded at https://drive.google.com/file/d/1sgiPhCQsdlmLNj9x6OAPvPAN6GVk-7ro/view?usp=sharing

Vladimir Sviridov 17 मई 2021 01:20 0 वोट

Here is a photo taken by M2P in MPB which is perfectly nadir. Same for photos taken by P4P v2 in MPB (strictly nadir).

Original DJI_0430.JPG can be downloaded at https://drive.google.com/file/d/1emrTAM19hfy6vXgvdhyUd5iSyFgxD8Z8/view?usp=sharing

Vladimir Sviridov 17 मई 2021 01:33 0 वोट

Flight Pitch Degree is the pitch of the aircraft in absolute terms. A pitch of -5 means the front of the aircraft is down 5 degrees from horizontal. Such a reading is common (required) while the aircraft is flying forward.

Gimbal Pitch Degree is the pitch of the gimbal. This is likely the value you care about.

You have two different values selected in your images.

Zane 17 मई 2021 01:49 0 वोट

Right, in https://support.dronesmadeeasy.com/hc/user_images/KzVQWvb3sLueU_r4rwUxqA.jpeg I should have highlighted GimbalPitchDegree field which has value of 84.9 (not nadir which is 90).

https://support.dronesmadeeasy.com/hc/user_images/HUHZ8_bJYj4E_CdAZGzAkQ.jpeg (flown in MPB) GimbalPitchDegree field has 90 value.

I flown many missions both in MPP and MPB with photos showing approx. 85 pitch in MPP and 90 in MPB. Five degrees off nadir is not very bad, but is not good either.

Vladimir Sviridov 17 मई 2021 02:34 0 वोट

Yes, Map Pilot Pro tips the gimbal up 5 deg (set to -85) by default. There are various reasons for it being set to 5 degrees but if you don't like it you can change it. You can change the setting in the gimbal angle setting.

I thought you were saying the number was 5 above 0 (as shown in the first original post) meaning above the horizon which was where the confusion was coming from.

The reason it is there is because it seems to get rid of some of the gimbal lock ambiguity in the tags and pointing solution. If you tell it to point straight down sometimes there was a significant amount of roll added to the gimbal pointing solution. The 5 degree offset is there as a controlled offset that gets the solution away from where the range where this roll was introduced.

Zane 17 मई 2021 02:35 0 वोट

Thank you for explaining.

"You can change the setting in the gimbal angle setting. " - I found no such parameter in MPP Settings menu.

Vladimir Sviridov 17 मई 2021 02:46 0 वोट

That is part of the camera controls. Click on the control bars in the top left corner of the camera preview. This will pop out the camera control panels for various settings.

Zane 17 मई 2021 03:02 0 वोट

Thank you for kind assistance. It solved my problem. Can fly strictly nadir now.

Vladimir Sviridov 17 मई 2021 20:52 0 वोट