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Change ARCamera's FOV

March 9, 2015 - 6:20am #1

Hi,

I have a webcam with an wide angle lens (like this), so I wonder if I can change the ARCamera’s FOV ? 

I’ve found this post but I use Vuforia 4.0 and the function "UpdateProjection(ScreenOrientation orientation)" has move to QCARBehaviourAbstract wich is not editable.

 

Is there an other way to do this?

 

 

Change ARCamera's FOV

March 23, 2015 - 1:52am #5

HI, 

Ok, thanks for your time and your anwsers.

Change ARCamera's FOV

March 19, 2015 - 7:58pm #4

It looks like the lens distortion is negatively impacting the ability of Extended Tracking to map the 3D scene. If you are using a wide angle lens accessory for your webcam (as your Amazon link shows), then Vuforia won't know about its particular settings when it queries for the webcam capabilities. Since Vuforia controls the ARCamera settings, there's nothing you can do in the API to adjust for an unknown lens.

Change ARCamera's FOV

March 19, 2015 - 7:11am #3
After some tests, it' looks that the detection using image target seems to matched pretty well but the extended tracking have some problems.
 
Cf the capture below (the cube is attach on the rigth-top corner of the marker).
AttachmentSize
Image icon extended.jpg190.95 KB
Image icon image_target.jpg160.21 KB

Change ARCamera's FOV

March 17, 2015 - 9:50am #2

Is the wide angle of your webcam not matched by Vuforia?

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