Meet the AI Tennis Ref That Can Be Bought for $200

Meet the AI Tennis Ref That Can Be Bought for $200

https://youtube.com/watch?v=Yd3XD-JWR5I

Mar.01 — French inventor Grégoire Gentil has designed a $200 GoPro-size device that can be fastened to any tennis net post and detect whether balls are in or out with surprising accuracy.

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