Hi, @amsbcn Welcome to the forum.
This is possible yes. For example, you can find tutorials about movement detection with a webcam here on Daniel Shiffman’s youtube channel. If you would like to use your phone’s camera instead, I’ve written an Android code here. Then you can transmit real-time movement data to a PC over wifi, and use a big screen with your fullscreen app running. A communication code between phone and PC you can find here. Here’s a video of the movement detection with a phone. You can invent different types of brushes and so on. So there is enough stuff to start with.
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