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Device tracking is not working if FusionProviderType is VISION_ONLY?

July 20, 2022 - 2:22am #1

My final goal is to develop an android app and android phone connect AR glasses with camera and IMU.



Use the camera on the android phone (FusionProviderType is SENSOR_FUSION and PLATFORM_SENSOR_FUSION),

the device pose that can be taken normally (VuforiaBehaviour.Instance.transform.eulerAngles and VuforiaBehaviour.Instance.transform.position will change).



Then I follow this to use an external camera from AR glasses.

I can get camera image from external camera and FusionProviderType will be VISION_ONLY, but VuforiaBehaviour.Instance.transform.eulerAngles and VuforiaBehaviour.Instance.transform.position nerver changed.



Then I tried to use webcam on windows(UWP), and FusionProviderType is VISION_ONLY. VuforiaBehaviour.Instance.transform.eulerAngles and VuforiaBehaviour.Instance.transform.position still nerver changed.

How to get device post in VISION_ONLY mode?

Earvin
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July 11, 2022
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Device tracking is not working if FusionProviderType is VISION_ONLY?

August 5, 2022 - 1:58am #3

yes! Its a correct.. Thank you for sharing a valuable content. visit:- Kathi Roll

kathination01
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August 5, 2022
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Device tracking is not working if FusionProviderType is VISION_ONLY?

July 21, 2022 - 10:48am #2

Hello,

Have you reviewed our File Driver sample? Per the following library article, this sample "... demonstrates how to access image and pose data from external systems."

This, of course, assumes that the pose data is available for your device. In the case of a webcam, this data *is not* available as webcams typically do not have IMUs.

Here's a link to the article reference above: https://library.vuforia.com/platform-support/external-camera#external-device-tracker

Kind regards,

Dave Downing

Vuforia Engine Technical Support

medabit
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February 26, 2016
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