YOLO contains the training stage to identify certain objects. I bet there are some pretrained YOLO models out there. You can use them as long as the specific objects you are interested in are the same as the pretrained YOLO model. What is your end goal, do you expect the model to output “YES/NO” on certain objects from camera feed? BTW, if the camera is on iPhone, feel free to check out Apple’s native support. I think they already have a framework to help you detect basic objects, such as a computer, from camera feed: https://developer.apple.com/documentation/vision 2. Maybe Google has a similar framework on Android.