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Mirror Camera Bug

February 14, 2013 - 4:03am #1

I just bought an ICOO DVPRO II tablet from china to test my app on, The tablet works fine in every respect apart from when i launch ANY app, be it my own or by another third part, such as AR Hoops etc.... the camera is mirrored left to right.

When i launch the camera its the right way round so its coming from Vuforia.

Im concerned that Vuforia has not been tested on low level android tablets that are flooding the Market.

 

Steps Taken:
I thought it may be because i was testing apps that use vuforia 1.5, 
So i downloaded and installed the APK for all the Vuforia 2 test apps.
The same thing happened, the camera is mirrored.

 

 

 

Mirror Camera Bug

March 12, 2015 - 6:56am #19

closing old thread --

Mirror Camera Bug

August 20, 2013 - 1:24am #18

Just a clarification: do you see the image upside-down when holding the device in portriat mode, or in landscape ?

 

Mirror Camera Bug

August 19, 2013 - 6:05am #17

I have already tried the reflection flag.. It only fixes the mirror image from left to right, but the camera view still remains upside down.

Mirror Camera Bug

August 19, 2013 - 5:50am #16

You can tell Vuforia to mirror the view during camera initialization; see the fnction configureVideoBackground() in ImageTargets.cpp;

there you can set the mReflection flag to ON / OFF. See also the API reference:

https://developer.vuforia.com/resources/api/struct_q_c_a_r_1_1_video_background_config

 

Mirror Camera Bug

August 19, 2013 - 4:11am #15

Yes on both front and back camera. Is there any workaround to rotate the camera when it is started. Any kind of hack would really help.

 

Thanks,

Mukund

Mirror Camera Bug

August 19, 2013 - 4:09am #14

Thanks for the details on the device. I've added it to the list.

Is the issue occurring with the front or back camera ?

 

 

Mirror Camera Bug

August 18, 2013 - 7:12pm #13

Hi AlessandroB,

The tab we are using is AOpen PTT9726DC model number, ICS 4.0.4, Kernal 3.0.8

I found a similar thread

https://developer.vuforia.com/forum/android/low-costs-tabletsphones-camera-view-inverted-problem

The issue I face is that when the camera is started, it is inverted.. everything else works fine such as target detection. Is there any code to invert the camera when in starts?? Our aim is  to sell tabs as well as custom applications based on Vuforia SDK.

Thanks,

Mukund

 

Mirror Camera Bug

August 18, 2013 - 7:12pm #12

Hi AlessandroB,

The tab we are using is AOpen PTT9726DC model number, ICS 4.0.4, Kernal 3.0.8

I found a similar thread

https://developer.vuforia.com/forum/android/low-costs-tabletsphones-camera-view-inverted-problem

The issue I face is that when the camera is started, it is inverted.. everything else works fine such as target detection. Is there any code to invert the camera when in starts?? Our aim is  to sell tabs as well as custom applications based on Vuforia SDK.

Thanks,

Mukund

 

Mirror Camera Bug

August 12, 2013 - 12:25am #11

Hi mbabbar,

could you provide a list of affected devices that you are aware of, with exact model name/number for each ?

 

Mirror Camera Bug

August 11, 2013 - 8:07pm #10

Has there been a fix for this inverion issue on low lost tablets?? it is really critical to our solution as we have bunch of tablets with same problem.

Mirror Camera Bug

June 13, 2013 - 2:58am #9

Hi, we have some options under investigation, but no official news yet.

Mirror Camera Bug

June 13, 2013 - 1:49am #8

Has there been any advance with this issue? It would be enough a configuration option that the user could change in realtime that flipped the camera buffer BEFORE the tracking stage, so app developers could make a GUI button for the user to change that.

Thanks for your work. 

Mirror Camera Bug

February 18, 2013 - 11:23pm #7

Hi, just a quick update: the issue is under investigation by the SDK team and a solution for it is expected in the future; however at the moment I cannot be more precise on the timeline for this.

Mirror Camera Bug

February 15, 2013 - 5:00am #6

Sure. I will get back to you; however at the moment I cannot tell whether this is something that can be easily fixed or workarounded.

At a first analysis, I would tend to think that the camera driver of those devices are just flipping the image buffer, and therefore Vuforia might have no means to detect this (as this issue is somehow entrapped at low-level in the camera driver, and Android cannot really tell if the retrieved image is flipped or not....however I will investigate and report back..)

 

 

Mirror Camera Bug

February 15, 2013 - 2:13am #5

there is a large volume of tablets coming out of this one factory under different 'brands' with the same camera,

they are about to the flood the market.

 

I need this resolving over the coming daya or i will pre emptively switch AR solution, this is a ticking time bomb.,

 

thanks for getting back to me.

Mirror Camera Bug

February 14, 2013 - 11:44am #4

Hi, thanks for the video ! 

This is precisely what I need to know (although the video was not required, but thanks anyway).

So, yes, we have seen a similar report from another developer; so, as you say, it seems that a few tablets are affected by this mirroring issue;

we'll look into it ...

 

 

Mirror Camera Bug

February 14, 2013 - 7:30am #3

If i place a mirror next to the Print out target it works with the reflection.

ive created a small video to show you:
http://www.youtube.com/watch?v=AweXWcNSB5Q&list=UU8bfzhZANw1QvXisCg4xWIg&index=1

 

 

Mirror Camera Bug

February 14, 2013 - 5:36am #2

Hi, just for confirmation:

can Vuforia detect/track the targets despite the mirrored image, or it does not track ?

 

 

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