AR Basics

October 8, 2010 - 8:33am #1

[=&;;;;;;quot]What is Augmented Reality?[/][=&;;;;;;quot] [/][=&;;quot]Augmented reality technology places virtual content in a live camera view of the real world, thus creating an augmented world where virtual and real world elements appear to coexist. A device, such as a mobile phone, acts as the looking glass through which this this augmented world may be viewed.[/][=&;;;;;;quot] What is a trackable? A trackable, also known as a target, is a key element of vision-based AR.

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VWS 3D Object Recognition

October 14, 2019 - 5:49pm #1



I've been reading VWS documentation and I couldn't find any sections that states 3D object targets. The only option I found is to upload image targets.  I would like to know if I could manage my targets; (creating, uploading, retrieving 3D object targets) using VWS API.


Thank you.



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Unknown error on Adding Target Image

September 18, 2019 - 11:37pm #1

An error keeps on appearing upon adding new targets on the cloud recognition.


message is: "There has been an error while processing your request. Please try again or search for the issue in the forums".

While researching can't find anything that is related to my issue.


Note: I created another account to test, the sub account accepted of my many images, while the main account did not accept any of the images, even the one who was accepted on the sub account.


I also attached a screenshot of the issue.

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Basic + Cloud API Call Quota?

September 2, 2019 - 4:06am #1

I saw somewhere that there is an API call quota for "Free". Is there such a quota with the "Basic + Cloud" model?

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Control Recognition Precision?

August 29, 2019 - 6:49am #1



Currently we are using MT360 for recognition of objects. However, in some cases, objects can be similar to the point where Vuforia recognizes objects when it should not.

My question is whether I can control the threshold within Vuforia, or at least query the precision of the current recognition?

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Projection Matrix difference in V8 vs V6

August 14, 2019 - 7:24am #1

Hi, I'm belatedly upgrading my app framework to Vuforia 8 from Vuforia 6. I have successfully got the tracked objects placed where they appear with V6, but when not tracking I'm getting a different projection matrix between the versions, so my non-tracked objects are placed differently.:

The code is given below, and called at screen re-orientation. 

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How vuforia plays video inside target

July 23, 2019 - 7:55pm #1

I wouldlike to know how vuforia plays video inside target, technical discussion

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How to get the extrinsic matrix?

July 17, 2019 - 8:34pm #1

Hello! I have a  question about the extrinsic matrix from the real object coordinate to the camera coordinate.

I check the API reference in C++, there is a function named getPose() in TrackableResult class.



But I am using unity/C# , so is there a  corresponding function to get the extrinsic matrix from the real object coordinate to the camera coordinate using unity API?


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Manually change camera exposure settings?

July 14, 2019 - 5:09am #1

Hi, dear Vuforia community.


I need to manually control exposure settings like enabling exposure lock and calculate exposure based on a pre defined center area.

CameraDevice.Instance.GetCameraFields() never returns anything for my Android devices and CameraDevice.Instance.SetField() does not seem to work. (Might be because I don't know the correct device keys)

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Manually force extended tracking on?

July 14, 2019 - 5:04am #1

Hi, dear Vuforia community.

We use outside image markers which are pretty far away, this makes them prone to jitter and that would be just fine if we could disable tracking of the marker once it is recognized and then switch to rely solely on extended tracking.

So, is there a way to force extended tracking manually whenever we need it?

I don't mind hacking it through reflection or Unity's SendMessage to private methods, or decompiling Vuforia for information to get it working.


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