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So, theories? RFID labels at the exit, computer vision to track which items you grab? Any of this coupled with tracking phone location? The fact that they spea
by JorgeGT 10y ago
So, theories? RFID labels at the exit, computer vision to track which items you grab? Any of this coupled with tracking phone location?
The fact that they speak about "supported phones" would point to some radio / location stuff going on.
- portmanteaufu 10y agoBased on the video, it looks like you use the Amazon app to identify yourself at the turnstile when you enter (via NFC?). The 'supported phones' bit seems to refer to phones that can run the Amazon app. Once you're identified, the cameras in the store can associate your image with the Amazon account that was presented and track you around the store. Each item that you grab is added to your virtual cart (unclear if this step is pure computer vision). The act of walking out causes you to be billed for items placed in your cart -- the cameras know you walked up to a turnstile, which activated. I don't believe the phone itself is used after you first enter the store, which eliminates a whole host of potential problems: app crashes, battery dying, losing service, etc. That's my take, anyway.
- JorgeGT 10y agoIt is shown in the video that the turnstile scans a QR code presented in the screen of the app. So if that's the only interaction (no idea!) it seems that the phone could be replaced by an NFC card or similar "dumb" device.