Hi
since my problem seems to be connected to the new website, which correlated with the 4.0 release I´m writing it in this categorie:
Apparantly Vuforia changed some things with the cube-trackers, since old cube-trackers dissappeared (or broke down into the single image targets),when the webside was changed.
I just uploaded my cube-tracker anew and have a very specific problem:
When I import this tracker-package into an old package (3.0.9) the tracking is quite bad. When I import the tracker into a new projekt (4.0.103) the first recognition is much better.
Unfortunately here comes a very strange behaviour: only some sides of the cube get recognized good, the other ones are quite bad (but they stick, when one side was recognized and the tracking doesn´t break, when we rotate the cube). Interestingly the affected sides change with every start of the app! Only secured thing is that the FIRST tracker shown to the cam is recognized good(always) - independend which one it is.
We testet it for about 2 days now in all possible variations but always get to the same behaviour.
The problem doesn´t lie with the images, since they are recognized as single ImageTargets just fine. (and as mentioned: every image is tracked just fine, if it was the first shown to the cam)
@ Vuforia: please help with this issue.
Best regards
Maik Krücken
I've tried with your images (by creating a MT target with size 90 x 90 x 90), but I was not able to reproduce the issue;
in fact, I was able to correctly detect all faces, by rotating the cuboid so that only one face at a time is visible;
the detection occurred on all faces within a same run, regardless of what was the first face to be detected (i.e. they all seemed to detect equally well);
however, I did notice that the features in most faces (except for the "back" face) are primarily concentrated around a very small area of the image, primarily along the "scale" (or "ruler") pattern which crosses each image from left to right;
along that pattern, the features are very close to each other and depending on the distance from the camera, they may be hard to spot d as the webcam resolution is typically not so high and can make things appear a bit "blurry" (this may also vary from a webcam model to another). In general the faces you use in your target seem to need a very well-lit environment when using Play Mode, and the target need to be kep quite close to the Camera (otherwise the features tend to disappear at the resolution and contrast levels of the webcam).
Also, you mentioned this only happens in Play Mode; so, I assume on Android and/or iOS devices you tested things work pretty OK ?