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xiao8579 / QuickCapture-Testing

Repo for feedback and issues during QuickCapture testing events.
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Oriented Imagery direction metadata not correct #53

Open AlanDesktop opened 2 years ago

AlanDesktop commented 2 years ago

If I turn on Google Maps I can see that my direction/orientation is correct. I am facing almost exactly due West.

Screenshot_20211007-105742 (002)

When I capture an image with QuickCapture, the image orientation does not appear to be captured correctly. This image was taking about 5 seconds after my Google Maps screenshot above. The Red Arrow that I drew represents the true direction that I was facing. From the image you can see I was looking directly down the middle of the parking lot, but the image cone shows that I'm was facing slightly more North towards the building with the white roof.

image

I've seen this with about 5 points that I've captured. I don't see a consistency with the angle of error. For example this looks about 10 degrees too far north, but I've seen others where it's more like 20 degrees too far south.

Generally the cone is facing approximately the right way. I mean I haven't had any issues where the cone is facing East or anything.

AlanDesktop commented 2 years ago

I've captured two new points after manually setting the magnetic declination to 0.

Facing West, the orientation cone is wrong again (different direction though):

image

Facing South (parallel to the road), the orientation cone is actually pretty close to accurate: image

AlanDesktop commented 2 years ago

Google maps works very accurately in my case. I can spin in a circle well inside my apartment and it's always facing close to the correct orientation.

Phone:
Pixel 4a Android Version 11

AlanDesktop commented 2 years ago

Note: I noticed that my direction orientation "cone" in Google Maps had gotten really broad and was slightly off-center. I re-calibrated the compass. Google Maps was looking good again. I also turned the magnetic declination setting back to default (15.02deg).

I then captured 6 more points in QuickCapture. In all cases there was an improvement. My actual orientation (red arrow) was always within the red cone and usually pointing within ~20 degrees of the correct direction.

So re-calibrating the compass definitely helped a lot but didn't completely fix everything.

This is the worst example out of the 6. image

This is probably the best but the other 5 were all more like this: image