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Best way to recognise flat circular objects?

January 16, 2017 - 8:18am #1

Is there a way to recognise flat circular objects? Like a cyclinder but very short in height? Let's say like a hockey puck, or even flatter?  When I try to resize the cylinder in the demo you cannot make it flat, the whole thing seems to scale with it. Should I use an image target or a cylinder target? If I use an image target how do I deal with the "mask" around my circular image (given that the image is square) ? Is there a special colour you can use to ignore parts of an image or a way to create a mask somehow ? I read you cannot use transparency which is a great shame.

Cheers, I am loving Vuforia!

Gaz

Best way to recognise flat circular objects?

January 20, 2017 - 3:41pm #2

Hello,

I would experiment between cylinders and image targets to see which performs best for your object.

Vuforia extracts keypoints from the uploaded targets for detection and tracking. Thus, if a circular target is required, you can upload the circular target within a typical rectangular image, using a white masking. The single color masking will insure that the target manager does not extract keypoints.

Thanks.

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