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My gameobject is out of sync with my qrcode

December 2, 2020 - 1:13am #1

Hi,

We are using Hololens 2.

We want to display an object on a qrcode. With a camera it's working perfectly but when we put our build on Hololens 2 the object was not on our qr code but it is offset on the left or right.

Do you have any ideas about this problem ?

Thanks.

My gameobject is out of sync with my qrcode

January 5, 2021 - 6:48am #7

Thanks for the advice, I'll see if I can improve my situation with calibrations. I'll write back tomorrow.

My gameobject is out of sync with my qrcode

January 5, 2021 - 2:19am #6

Hi @ Huszky,

From our experience, there are several factors that can cause an augmentation to be offset, including:

1. HoloLens user calibration. MS recommends that each user perform the HoloLens calibration steps before using the device. This is obviously tedious, but when sharing HL devices within a team we've chased a similar performance 'ghosts' that were resolved when a user calibrated the device for themselves.

2. HoloLens device calibration. All HL devices have some level of factory calibration done before shipment, and we've had to have devices re-calibrated by MS. Although this does not seem to be the source of your issue, it is something to be aware of with HL devices that the factory calibration can be compromised.

You may also want to examine the HL mesh in that area. This can be done by orienting the retical towards the area in question and "air-tapping" while in the HL shell (the home screen without the start menu - no apps running). Perhaps this will reveal some errors in the HL spacial map that are affecting their position estimations.

Hope it helps.

Vuforia Engine Support

My gameobject is out of sync with my qrcode

December 16, 2020 - 5:12am #5

I attached the image i see with the Hololens 2. The size is set to 0.115 and the size of the printed QR Code s 11.5cm.

On the image where my right hand finger is is where I see the Button floating. It's approximately 5-10 cm above the printed image

In the editor, using a webcam the tracking works perfectly.

Im Using Unity 2020.1.17, and Vuforia 9.6.3

AttachmentSize
Image icon vuforia-track.jpg103.46 KB

My gameobject is out of sync with my qrcode

December 16, 2020 - 3:14am #4

I'll try this today

My gameobject is out of sync with my qrcode

December 14, 2020 - 2:21am #3

Hi @shoshoda @Huszky,

Could you please check the size of your printed targets? For optical see-through devices (such as HoloLens), the printed target must match the dataset's target size exactly, as uploaded to the Target Manager. Recall that the Target Manager works exclusively in the units of meters.

Thank you.

Vuforia Engine Support

My gameobject is out of sync with my qrcode

December 11, 2020 - 4:18am #2

I have the same issue, even after the 9.6.3 update. In the editor it works perfectly, on the Hololens 2 it has a really visible offset

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