AR targets
The AR target will be a user-defined image captured at runtime. With Vuforia, a user-defined target means you can define the AR target at runtime using the device's camera, and then the app will register and recognize that image for displaying the associated virtual objects. It makes sense in this project because it would be impossible to provide a predefined database of target images since every automobile is different, in different conditions, and situated in unique environments.
The image-quality requirements for user-defined targets are similar to those for natural feature targets. You want them to be rich in detail, in good contrast, and with no repetitive patterns. But we do not need to worry about ease of availability because ...
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