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The AR camera still jitters, after all these years

December 28, 2017 - 2:55pm #1

I've seen many posts over the years about Vuforia jittering in Unity3D. I've seen various workarounds, but none that I have seen (camera smoothing etc) have really been a very good solution.

This video looked promising https://www.youtube.com/watch?v=bcMiyTIa2HM but it is based on an older version of Vuforia where the AR scripts were separate from the Camera, so doesn't seem possible in V7.

Are you guys at Vuforia ever going to fix this problem? It is making my presentation look very amateurish :(

 

 

 

The AR camera still jitters, after all these years

August 2, 2018 - 9:59am #11

Hello,

The star rating provides a heuristic analysis of the given target, but does not necessarily represent the actual run time tracking performance. It is to provide some level of feedback to help guide developers to optimize their targets.

Here is some guidance on optimizing targets: https://library.vuforia.com/articles/Solution/Optimizing-Target-Detection-and-Tracking-Stability

Reviewing your target, I would not expect it to perform well. First, creating a target where text is the predominant feature is not recommended. Second, tracking will not perform well (e.g jitter or jumpiness in your augmentation) there are few features in the environment to support Extended Tracking via SLAM.

As @dpizzle mentioned, you may have better results using Extended Tracking with Vuforia Fusion: https://library.vuforia.com/content/vuforia-library/en/articles/Training/vuforia-fusion-article.html

Thanks,

Vuforia Engine Support

The AR camera still jitters, after all these years

July 31, 2018 - 9:18am #10

Hi I am trying to detect the pillar in the scene by using an image of the pillar.the image target has a 4 star rating.I am not using ground plane.I am attaching my image target with the post.Even if i add a simple unity ui button centered with image target,the button will show fluctuations.I am using extended tracking with world center mode-camera,Vuforia sdk 6-2-10,also using video playback for vuforia 6-2-10. As i said adding a simple ui button to the image target would produce ar camera shaking.I tried the smoothing script available in forum but it make my augmentation jumpy.

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The AR camera still jitters, after all these years

July 25, 2018 - 8:31am #9

If you can, look into using Vuforia 7+ ground plane feature, you probably won't find extended tracking to be satisfactory for what you are doing. Or if you don't need to walk towards or away form the content, switching to rotational tracking after target recognition may be enough for you.

The AR camera still jitters, after all these years

July 25, 2018 - 3:44am #8

for a specific  assignment i need to position an augmented unity ui at some distance from the target .Iam using extended tracking.but my augmented panel shows fluctuations and jittery.I have attached a screenshot of my augmentation and target.as a target Iam using an image of pillar with a 4 star rating..

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The AR camera still jitters, after all these years

January 3, 2018 - 6:46am #7

Unfortunately, I don't have it anymore.  Load up the Vuforia Image target sample project and replace with your image target to check whether it's your device causing the issue.

The AR camera still jitters, after all these years

January 3, 2018 - 3:58am #6

I followed your steps but mine still jumps around.

Is there any chance you could let me download your test solution via Google Driver or something, so I can check if it's a hardware problem or something?

Thanks for your time!

 

 

The AR camera still jitters, after all these years

December 30, 2017 - 2:33am #5

Would you mind uploading your project so I can test that?

 

Thanks!

The AR camera still jitters, after all these years

December 29, 2017 - 2:53pm #4

I tested with your marker and saw no jitter, it was rock solid.  I printed it about 10cm tall and stood a couple meters away.

https://www.dropbox.com/s/n04x0adyq0bngp2/HTUO0416_1.mp4?dl=0

Here's what I did:



1. Resized your marker (bicubic) to 1000x1000 pixels

2. Uploaded with a width value of 1

3. New project in Unity, added a ArCamera and ImageTarget

4. Parented a cube to the image Target.

5. Pushed to device.



If you still can't get it to work, consider downloading the sample files and replacing with your image target, maybe it will become apparent then what the issue is.





 

 

The AR camera still jitters, after all these years

December 29, 2017 - 10:37am #3

Thanks for your response!

 

I have attached the actual image I uploaded, and have inset a screenshot of the markers from the website.

My character's feet are at (0,0,0) and the camera is just under 1 metre away from the target.

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The AR camera still jitters, after all these years

December 28, 2017 - 5:10pm #2

Vuforia is definitely the best at what it does.  Not sure why you're having such bad jitter issues.  Maybe share your image target and a video so we can try to debug what's going on.

Some things to note:

1. Make sure your model is parented as close to the target center as possible.  For logical reasons, any jitter will be magnified directly related to how far away it is from center.

2. How many stars does your image target have?  Try scaling, using lower and higher resolutions of it when you upload.  Sounds strange but higher resolution isn't always better.

3. How far way is your camera from the target when the jitter occurs.  Also brightly lit room with little glare from the image target works best.

 

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