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Stability of augmented objects

I started a new project today. I am supposed to augment a 3d model of around 4 meter x 2 meter in dimension.

I created an image tracker of size 5 width. All seems to work fine however the 3d augmented model is not stable, it wobbles, sometimes rotates automatically and some times doesn't relates to change in direction and movement of the ar camera.

Is there any issue of the width of the image tracker of I am going wrong somewhere?

 

I tried all combinations of using the image tracker of with 5, 10, 20 and scaling the model to 2 , 4, 6, 8 , 12.

Looks like smaller models don't have much issue in augmenting as the size increases the model sometimes sticks to the camera or the model flickers a lot or shakes a lot.

Hello,

Pose jitter exists for all 2D planar targets. The magnitude of the jitter (hardly noticeable to very noticeable) can be impacted by a few factors: