What is the recommended way to re-scan an image target? This is a hololens application using Unity & Vuforia. An image target is scanned and the 3D model is displayed just fine. But, when a user moves the hololens too close to a surface the image "Trying to map your surroundings" pops-up indicating tracking loss. After the user moves back from the surface tracking is re-established but once in a while the location of 3D model has changed dramatically and the image target should be re-scanned.
From what I can gather from the documentation and forums is that I should delete the database containing the marker and then read the database back in again. Which should allow me to scan it again and thus establish it's proper place again. Is that correct? It seems a bit of a long winded way of going about it. I would expect something like marking the image target as "undiscovered" after which it would be available for "discovery" just like any other image target in the database.
Thanks for your feedback.