Log in or register to post comments

Tracking position, size and shape of occlusion

October 11, 2012 - 7:51pm #1

For the non-Unity examples, there was one with a soccer ball being driven by a finger on the actual image target paper surface... Is there a way to track the position, size, and/or shape of the occluding object on the image target? 

Tracking position, size and shape of occlusion

October 12, 2012 - 3:27pm #4

There is going to be an effective limit to the resolution of that grid because a VB needs to be of a minimum size to be detected. You'll also need to use a target with consistent feature distribution so that you don't have any dead spots. This will take some experimentation to determine how precisely you can estimate size and shape by this approach.

 

Tracking position, size and shape of occlusion

October 12, 2012 - 12:54pm #3

What about for a free-ranging real object that occludes part of the image target.. 

 

What if you used a grid of virtual buttons as a way to track where the real object is

 

Are there limitations as to how many virtual buttons can be tracked?

Tracking position, size and shape of occlusion

October 11, 2012 - 8:05pm #2

For Unity apps?  The soccer ball example uses a VB that follows the movement of the ball. Is this the occluded object that you are referring to? If so, you can obtain the dimensions of the VB rectangle - there's a soccer ball sample for Unity as well you know, see the VirtualButtons sample.

Log in or register to post comments