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"Jumping" 3D models on 2D trackable image

"Jumping" 3D models on 2D trackable image


Thanks Nicolas!

I have received some complaints about the target tracking performance even with these optimized collections. They were in comparison to the same image in Metaio -- with Wikitude they found it harder to recognize the target image especially when not at 90 degees, as well as the 3D model not being as stable on the image. 

Is it reasonable to expect Wikitude to be on par with Metaio? Are their any plans in the near future for further improvments aside from the new target manager?

Hi Boston,

depending on the target there will always be slight differences in the performance of image recognition algorithms but we consistently strive to enable the best user experience possible. Therefore I can assure you we are very committed to constantly improve Wikitude's image recognition algorithms. Even though there is no exact date I can share with you at this point in time, we are working on it right now.

In addition the new target management tool with more accurate rating and improved tracking quality is now publicly released and deployed to our servers. Creating an optimized target collection is as simple as opening up your existing project in Wikitude Studio or the Target Management Tool and recreating the wtc file.

 

Best regards,

Nicolas

I did that (change the id targets), but in my app doesn't print the X label (AR.Label('X', 1)) over the image that i set as target. Exist another way to save the targets in another format different to .wtc ?

Hi Sergio,

 

would you mind posting the target image in question together with the (relevant parts of the) sample code you are using?

That would help us to quickly spot the error.

 

Best regards,

Nicolas

Hi Nicolas,

The problem of the image recognition is solved with a copy and paste of the 1_Image_Recognition_On_Target folder that is included in the Examples folder of the Wikitude SDK. Now, i try to play with the 3D_Image_Recognition, but i have problems with the Wikitude 3D Encoder because i can´t load my .dae files to get the .wt3. When i try to load my .dae file the Encoder closes. Here my .dae

https://www.dropbox.com/s/3lqlwt2ixg1ij4o/Peru%20Column%2001.dae

I want to know if you have .dae or .fbx files the that Encoder can work and take them as guide for test with differents 3D Models.

Regards!

Hi Sergio,

I had a look at the dae file you provided. Which version of the Wikitude3dEncoder do you have and do you run it on a MacOS or on a Windows? The application shouldn't crash but show you a messagebox with the errors.
When I load your dae model then I get a lot of error messages which tell me that the texture image files are missing.

I noticed that your 3d model was created with SketchUp. We recommend using Maya or Blender for creating the dae or fbx files. I removed the textures from your model, quickly added a light and exported it to fbx. You find the file attached. I made it really fast and didnt try to make it beautiful, so the material is just a gray color.

Hope that helps,
Christian

 

Hi there,

I have a scene with a Trackable2DObject which loads a 3D model on top of it when enters field of vision. 

The problem is the 3D model tends to "jump" around (especially when moving the camera) as if Wikitude doesn't have a solid understanding of the orientation of the trackable image.

The image (here) is rated 2 stars and reports it should be good for tracking.

Any suggestions how to reduce this jumping?

Hi Boston,

 

thanks for your question and feedback.

Could you please post which device you are using for testing? Additionally, could you please test the following, optimized target collection for your image and report back if your 3D models appear more stable with it: http://goo.gl/SVuwG4

 

Best regards,

Nicolas

Hi Nicolas,

The new tracker is a definite improvement! It will just jump occassionally if I move or rotate the target around, but generally it's quite good now.

What did you do to make it 3 stars?

I'm testing with Android Nexus 4, Phonegap + SDK 3.2

Hi,

 

I am glad to hear that it improved the tracking for you.

I did not alter the image at all, instead I created the target collection using an optimized version of the target management tool, which is currently under development and will be made public in the coming weeks.

In the mean time, in case you have other targets needing improvement I can offer to manually create an optimized target collection and send it over to you.

 

Best regards,

Nicolas

Awesome, good to know! 

Will the release be announced in the developer news page / email? Looking forward to getting access to it.

Also, is there anything you would recommend with the tracking image to improve it further or does it have all the necessary characteristics?

Your target image has good contrast and well distributed image structures and therefore it is already well suited for tracking.

Once the updated target management tool is released we will let you know either through our developer newsletter or twitter feed at https://twitter.com/Wikitude - feel free to follow us!

 

Best regards,

Nicolas

 

 

Hi Nicolas,

Could you tell me if this new version of the image still gets 3 stars in the optimized target manager? I had to remove the text due to client request.

Old: http://cl.ly/image/3Z472Q1s2Y0s
New: http://cl.ly/image/3J233l010N2F

Could you also make a wtc file with both images?

Thanks,
Boston

Hi Boston,

 

the modified target without the text does track very well, too: http://goo.gl/KRYpnd

 

Best regards,

Nicolas 
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