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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Detectig the currently tracked image targets anf their position

March 28, 2020 - 9:04am #1

Hi, I am new to Vuforia and unity and really want to know what is wrong. I want to track the number of targets detected currently and their position, and found this code on the other forum:

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Update Vuforia database data throgh app

March 26, 2020 - 2:17am #1

Hello all,

I faced with some interesting issue, i hope someone could help me here.

I want to build an app that the users will add images for target tracking to cloud database.

e.g. - user see a specific shirt, he films it and add some 3d text / objects or something, and the cloud database will update.

so another user will film that shirt and the tracker object will appear...

hope i explained myself properly...



thank you!

 

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Detecting finger touch on AR object?

March 7, 2020 - 10:28pm #1

Hi, I'm a newbie in Unity and Vuforia.

I'm trying to create a mobile AR app to create a virtual piano keyboard on a flat surface and be able to play the keys using my fingers.

I wonder if this is possible using Vuforia and how difficult this would be. Also, I wonder if the detection would be accurate enough.

If this is difficult to do with Vuforia, I would like to know if there's any better alternative solution to achieve this.

Lastly, I wonder if it is possible to show my fingers in front of the piano keyboards and not behind it.

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>5 Image Targets in a picture

March 5, 2020 - 5:41pm #1

Hi, I realize the Vuforia API limits developers to a max of 5 simultaneous targets (HINT_MAX_SIMULTANEOUS_IMAGE_TARGETS) for performance reasons, but I'm wondering if it'd be possible to increase that number if we don't care so much about performance. Specifically, I'd like to be able to detect about 20 Image Targets in a captured picture / single frame. Possible?

 

Thanks!

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Weird behavior while opening vuforia camera in unity

February 26, 2020 - 9:58am #1

Hello,

I am developing AR application using vuforia and unity, i am facing issues on several android device while opening vuforia camera at the time of image targeting.

here is the list of some devices i faced issues at Redmi K2 Pro, Galaxy A7, 1+

Also crash every first time open application on oppo f9,

Already try with changing API Compatibility level to .NET 4.x,

Graphics API set to auto

Using:

vuforia version: 8.1.10

unity 2018.3.4f1

Also attached screenshot for understanding.

How can i solved this... help me

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Asking for VuforiaRenderer.VideoTextureInfo videoTextureInfo = VuforiaRenderer.Instance.GetVideoTextureInfo(); breaks video out

February 25, 2020 - 7:42pm #1

While I would love some answers to my other question about video and camera image. For now I find the on 8.6.10 calling 

videoTextureInfo = VuforiaRenderer.Instance.GetVideoTextureInfo();

makes the video playback like it never focuses and is muddy black

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What is the difference of the CameraDevice.Instance and VuforiaRenderer.Instance for getting the background image

February 21, 2020 - 7:23pm #1

What is the difference of the CameraDevice.Instance and VuforiaRenderer.Instance for getting the background image. I need to get the texture or its buffer of the camera so I can build up a composite from some command buffers.

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Text Detection

January 29, 2020 - 12:39am #1

Good day everyone. We are creating a chemistry app using Vuforia and Unity3D, and one of the requirements we have is to enable text detection and use it as if it was an image target. We have tried using an image of a text but, as you may have guessed, it failed. We are also aware that Vuforia came with text detection, but it has now been deprecated. Is there any way to do text detection? We are also open for alternatives. Thank you!

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Vuforia black screen when build to Android (Unity 2018.3.0b7)

January 20, 2020 - 11:18pm #1

Hello,

My Vuforia project works fine when testing within the editor, however whenever I build it to my Android device and load it up the 'video background' remains black and it won't find my image targets usps tracking showbox.

Does anyone know the cause of this?

Kind regards.

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