If you are programming for iOS, you can use the Vision framework, which has face landmark detection built in. It works on device, so it's free without limits and you can do all that stuff in real time.
I have not yet tried the face landmark detection but I have successfully applied the rectangle detection from the Vision framework to extract the image from a TV to perform a classification on what channel is currently running, which worked quite well.
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If you are programming for iOS, you can use the Vision framework, which has face landmark detection built in. It works on device, so it's free without limits and you can do all that stuff in real time.
I have not yet tried the face landmark detection but I have successfully applied the rectangle detection from the Vision framework to extract the image from a TV to perform a classification on what channel is currently running, which worked quite well.