We are using Context Capture Desktop edition 20.1 V10.20.1.5562 and noticed that there have been some updates to the AT engine and an additional low level preset added.
I was hoping more information could be shared about these settings. What criteria needs to be met to trust the metadata? Is this position and orientation data from EXIF/imported data? Is position only sufficient? Is the metadata only trusted more when the low level preset is used, or does this happen automatically when metadata meets the criteria?
What is the difference between using the low level preset vs setting the AT to use Photo positioning metadata as an adjustment constraint as adjust/adjust within tolerance?
Thanks,
Jason.
What are the Variable values for using Maximum position metadata confidence.cfg what error/confidence/weighting is assigned to the known RTK/PPK positions? Can this be changed based on additional knowledge on quality of PPK post processing results ?
Thanks, yes I received the answer.
I had suspicious that Wingtra got it wrong.
Hello Oto,
I have reviewed this SR and I hope you have recieved an answer from the support team by now. This case is not really related to the improvments mentionned above. For your specific dataset, there are 3 things :
- there is no added value to import the position and rotation using the CSV file, because the exact same infomation is stored in the EXIF.
- the guide in the Wingtra Knowledge base gives a wrong indication on the setting to be used for importing the orientation metadata. I have reached out to the Wingtra team to get this corrected.
- The input orientation is off by 6deg on average, which makes the AT to reject most photos if "adjust" is set on position and rotation in the AT settings (if set to "compute" it works well). We are investingating if this is an issue of how we read the rotation information, or if it is simply a bit too inncurate for our current AT engine to work with it properly.
This said, we are still working making progress on the new AT engine, to have additional robustness to this, and some failsafe to get a succesful AT regardless and not be so dependant of how the settings were choosen in the first place.
Sylvain
Hi SHONG SUN The dataset referred to isn't a Bentley supplied sample dataset, rather some we are processing for a client.
Thanks, Jason.
How can I download the test dataset?Can you send me,Please. My Email:3481397791@qq.com. Thanks!