intocarlogmail.com Posted at 6-18 02:17
Hi Wanda,
I also have the same problem with the Terra 3.7.3 version on Windows 11 Pro, I attach two screenshots, the first with Terra and the second with the same dataset but processed with a different software:
[view_image]

Hello, there. Sorry for the inconvenience. Please refer to #19 and #37 and send us the required data so that we can consult with our engineers.

erwan lb Posted at 6-15 21:38
I just sent you the link. the processing is done with dji terra 3.7.0 but the problem remains the same with version 3.7.3

Hello, sorry for the inconvenience. Our engineers analyzed the data and would like to confirm whether you used a calibration board with known reflectivity.

on the flight I sent you I used a parrot sequoia calibration plate with the values ​​recommended for sequoia. they are wrong for the mavic 3 but dji still does not make a calibration plate.... i will have to receive a micasense plate in the next few days and work with a photonics specialist to try to refine the settings. I restarted the dji terra processing of the same flight without using the calibration plate, letting terra "autocalibrate" the data and the problem remained the same

erwan lb Posted at 6-26 00:34
on the flight I sent you I used a parrot sequoia calibration plate with the values ​​recommended for sequoia. they are wrong for the mavic 3 but dji still does not make a calibration plate.... i will have to receive a micasense plate in the next few days and work with a photonics specialist to try to refine the settings. I restarted the dji terra processing of the same flight without using the calibration plate, letting terra "autocalibrate" the data and the problem remained the same

I find it hard to grasp this facination for reflectance targets.  The drone is natively equipped with a sun sensor which does its job very well, provided that the flight plan has the right trajectory and the flight is made at the right time of day.  You are free to invest in a Micasense target, but what else will you do with it?

I mean, what result do you expect?  My best advice, rather invest in a serious software.  Terra is more of a development thing than a quality platform.

Same Issue here with Mavic 3ME and version 3.7.3


*Oversaturation is caused by HDR screenshot in W11

erwan lb Posted at 6-26 00:34
on the flight I sent you I used a parrot sequoia calibration plate with the values ​​recommended for sequoia. they are wrong for the mavic 3 but dji still does not make a calibration plate.... i will have to receive a micasense plate in the next few days and work with a photonics specialist to try to refine the settings. I restarted the dji terra processing of the same flight without using the calibration plate, letting terra "autocalibrate" the data and the problem remained the same

Sorry for the late response. Kindly understand that we will not receive a notification unless you reply to our post directly.
For your issue, please tell us the calibration icon and the corresponding reflectance information used by the reflectance calibration plate;
Also, may we know what language you used in DJI Terra?

terra is in french. here are the reflectance values ​​but I repeat anyway that if I do not use the calibration plate the problem is the same

green: 0.186
red: 0.199
rededge: 0.229
black: 0.263

DJI Wanda Posted at 6-25 00:00
Hello, sorry for the inconvenience. Our engineers analyzed the data and would like to confirm whether you used a calibration board with known reflectivity.

Hello,

I am also facing the same issue with M3M and Terra 3.7.0/3.7.3. Terra 3.6.8 didn't have this issue, so I was using it for M3M data process, but since the recent update on the certificate verification service, it does not allow me to use older version of Terra anymore, as I am using the 3-months trial license.
Please do something as soon as possible, otherwise I can not evaluate the software.

I tried both with/without the reflectance calibration, but the result was same.

erwan lb Posted at 6-28 01:21
terra is in french. here are the reflectance values ​​but I repeat anyway that if I do not use the calibration plate the problem is the same

green: 0.186

Got it. We will let them know.
Kindly reply to our post directly so that we can receive the notification.

ryuh Posted at 7-4 06:26
Hello,

I am also facing the same issue with M3M and Terra 3.7.0/3.7.3. Terra 3.6.8 didn't have this issue, so I was using it for M3M data process, but since the recent update on the certificate verification service, it does not allow me to use older version of Terra anymore, as I am using the 3-months trial license.

Sorry for the late response. I will consult your issue with our teams first.

erwan lb Posted at 6-28 01:21
terra is in french. here are the reflectance values ​​but I repeat anyway that if I do not use the calibration plate the problem is the same

green: 0.186

Hi, would you please change the language to English and try again?

ryuh Posted at 7-4 06:26
Hello,

I am also facing the same issue with M3M and Terra 3.7.0/3.7.3. Terra 3.6.8 didn't have this issue, so I was using it for M3M data process, but since the recent update on the certificate verification service, it does not allow me to use older version of Terra anymore, as I am using the 3-months trial license.

May we know if you choose the language in English? If not, please change the language to English and tell us your feedback.

DJI Wanda Posted at 7-4 23:25
Hi, would you please change the language to English and try again?

I just did the test in English, the problem is the same

erwan lb Posted at 7-5 01:51
I just did the test in English, the problem is the same

If so, you are advised to use DJI Terra v.3.6.8 first. We will optimize the issue in the later version.

DJI Wanda Posted at 7-5 02:04
If so, you are advised to use DJI Terra v.3.6.8 first. We will optimize the issue in the later version.

yes but when a functional version will be released. since terra 3.0 the reconstructions are catastrophic and 3.6.8 does not escape the problems encountered systematically since the arrival of version 3. (see pictures below, in first 2.3.3 in second 3.6.8) .the microplots are systematically distorted (in multispectral, in rgb it's good) on all versions 3 which was not the case with 2.3.3

DJI Wanda Posted at 7-4 23:27
May we know if you choose the language in English? If not, please change the language to English and tell us your feedback.

Thank you for your reply.
Yes, I use English for the setting from the begining.

erwan lb Posted at 6-26 00:34
on the flight I sent you I used a parrot sequoia calibration plate with the values ​​recommended for sequoia. they are wrong for the mavic 3 but dji still does not make a calibration plate.... i will have to receive a micasense plate in the next few days and work with a photonics specialist to try to refine the settings. I restarted the dji terra processing of the same flight without using the calibration plate, letting terra "autocalibrate" the data and the problem remained the same

Can we know the verdict of the photonics specialist?

ryuh Posted at 7-4 06:26
Hello,

I am also facing the same issue with M3M and Terra 3.7.0/3.7.3. Terra 3.6.8 didn't have this issue, so I was using it for M3M data process, but since the recent update on the certificate verification service, it does not allow me to use older version of Terra anymore, as I am using the 3-months trial license.

Hi same happen to me... I used 3.6.8 but there is no license on this version. so again Im on 3.7.3 and there is again the problem....

erwan lb Posted at 7-5 03:49
yes but when a functional version will be released. since terra 3.0 the reconstructions are catastrophic and 3.6.8 does not escape the problems encountered systematically since the arrival of version 3. (see pictures below, in first 2.3.3 in second 3.6.8) .the microplots are systematically distorted (in multispectral, in rgb it's good) on all versions 3 which was not the case with 2.3.3

It seems this issue is different from the beginning. Would you please upload the data of the second picture for us? It requires to do a separate analysis.

ryuh Posted at 7-5 07:42
Thank you for your reply.
Yes, I use English for the setting from the begining.

Would you please wait for the new version? After release, please test it again and tell us your feedback. Please attach the screenshot so that we can better understand your issue.

DJI Wanda Posted at 7-6 02:04
It seems this issue is different from the beginning. Would you please upload the data of the second picture for us? It requires to do a separate analysis.

I just emailed you a link. the problem is probably different, but here is the answer given to me by dji support a year ago

Our engineers performed reconstruction with your dataset and reproduced the same misalignment problem. After analysis, they found it is due to the change of algorithm of DJI Terra v3.0 and later, in which the accuracy is lower than v2.3.3 if the overlapping rate is not high enough in some cases. They have received some similar feedback recently and are stepping up to fix this issue in the future version. Please visit https://www.dji.com/downloads/products/dji-terra for any updates. As a temporary workaround, kindly increase the overlapping rate to avoid the misalignment. Pardon us for the inconvenience caused.

I haven't seen any improvement since, regarding overlapping rate I'm usually 80% frontal and 80% lateral

erwan lb Posted at 7-6 21:44
I just emailed you a link. the problem is probably different, but here is the answer given to me by dji support a year ago

Our engineers performed reconstruction with your dataset and reproduced the same misalignment problem. After analysis, they found it is due to the change of algorithm of DJI Terra v3.0 and later, in which the accuracy is lower than v2.3.3 if the overlapping rate is not high enough in some cases. They have received some similar feedback recently and are stepping up to fix this issue in the future version. Please visit https://www.dji.com/downloads/products/dji-terra for any updates. As a temporary workaround, kindly increase the overlapping rate to avoid the misalignment. Pardon us for the inconvenience caused.

I have just tested with 3.7.6 the multispectral processing works again with a rendering very close to 3.6.8, therefore with deformation

erwan lb Posted at 7-6 21:44
I just emailed you a link. the problem is probably different, but here is the answer given to me by dji support a year ago

Our engineers performed reconstruction with your dataset and reproduced the same misalignment problem. After analysis, they found it is due to the change of algorithm of DJI Terra v3.0 and later, in which the accuracy is lower than v2.3.3 if the overlapping rate is not high enough in some cases. They have received some similar feedback recently and are stepping up to fix this issue in the future version. Please visit https://www.dji.com/downloads/products/dji-terra for any updates. As a temporary workaround, kindly increase the overlapping rate to avoid the misalignment. Pardon us for the inconvenience caused.

Hello, there. Sorry for the inconvenience. May we know if this issue has been resolved with the new released version?

DJI Wanda Posted at 7-8 01:34
Hello, there. Sorry for the inconvenience. May we know if this issue has been resolved with the new released version?

new version corrects the problem that appeared on 3.7 and 3.7.3 but continues to curve the microplots like all versions3, 2.3.3 remains more efficient

erwan lb Posted at 7-11 04:32
new version corrects the problem that appeared on 3.7 and 3.7.3 but continues to curve the microplots like all versions3, 2.3.3 remains more efficient

Got it. I still can not open the link and access the data you uploaded.

erwan lb Posted at 7-11 04:32
new version corrects the problem that appeared on 3.7 and 3.7.3 but continues to curve the microplots like all versions3, 2.3.3 remains more efficient

Hi, we have produced the issue from our side. We will escalate your issue to our R&D departments. It will take a longer time to analyze about 3-5 weeks. If we have any updates, we will copy the information here.

DJI Wanda Posted at 7-20 03:57
Hi, we have produced the issue from our side. We will escalate your issue to our R&D departments. It will take a longer time to analyze about 3-5 weeks. If we have any updates, we will copy the information here.

Just a quick update from my side is that version 3.7.6 seems to work fine with the same computer I was having issues with before.



So what ever you did there worked for me!

djiuser_0lOR3hGwAwHk Posted at 8-3 05:18
Just a quick update from my side is that version 3.7.6 seems to work fine with the same computer I was having issues with before.

[view_image]

Thank you for your feedback. We are glad to hear that. Please let us know if you have any questions.

and now with version 3.8 I can no longer do a multispectral mission, it asks me to reactivate an old license from 2021 while I have a permanent license that is activated

suddenly I can do rgb reconstruction but no multispectra

DJI Wanda Posted at 8-4 04:18
Thank you for your feedback. We are glad to hear that. Please let us know if you have any questions.

and now with version 3.8 I can no longer do a multispectral mission, it asks me to reactivate an old license from 2021 while I have a permanent license that is activated

suddenly I can do rgb reconstruction but no multispectra

erwan lb Posted at 9-5 12:54
and now with version 3.8 I can no longer do a multispectral mission, it asks me to reactivate an old license from 2021 while I have a permanent license that is activated

suddenly I can do rgb reconstruction but no multispectra

it asks me to reactivate an old license from 2021 while I have a permanent license that is activated.
Hello, there. Can we have a picture of this?

DJI Wanda Posted at 9-6 04:17
it asks me to reactivate an old license from 2021 while I have a permanent license that is activated.
Hello, there. Can we have a picture of this?

hello wanda

erwan lb Posted at 9-6 05:23
hello wanda

[view_image]

Thank you. We are consulting with them.

erwan lb Posted at 9-6 05:23
hello wanda

[view_image]

I just did a test again and it doesn't work in RGB either

if I click on multispectral, the licensing problem appears immediately, if I click on visible light I can download the photos but when I click on start reconstruction the license request also reappears

erwan lb Posted at 9-7 02:14
I just did a test again and it doesn't work in RGB either

if I click on multispectral, the licensing problem appears immediately, if I click on visible light I can download the photos but when I click on start reconstruction the license request also reappears

Hi, we will recommend you contact our support to unbind the current license on your computer.
Here is the link: https://www.dji.com/support/repair?site=brandsite&from=footer