Hello. We are developing an application that displays AR using markers, but we would like to make it possible to recognize the markers from as far away as possible, because when the camera recognizes them from a distance, the AR is not displayed until you get close to a certain distance. We would like to set markers that ARKit can easily recognize, but what kind of markers can we expect to improve the accuracy? If I set a simple marker that is easy to recognize even from a distance, it seems to not be judged in the first place, so I am asking this question.
Improvement of accuracy when displaying AR with markers
I recommend you to try out this developer sample: https://developer.apple.com/documentation/arkit/content_anchors/detecting_images_in_an_ar_experience It shows how to work with reference images. Note in particular this part from the read me:
When you add reference images to your asset catalog in Xcode, pay attention to the quality estimation warnings Xcode provides. Images with high contrast work best for image detection.
When you add references images to the asset catalog, Xcode will run an algorithm to estimate the "detectability" of your images. I recommend you to try it with a range of images to get a feel for what works well.