What technology does Amazon Go primarily use to track customer purchases without requiring checkout?

Amazon Go stores revolutionized retail with their 'Just Walk Out' technology. These cashierless stores use a combination of computer vision, sensor fusion, and deep learning to automatically detect when products are taken from or returned to shelves. This innovation represents a significant shift in retail strategies focused on frictionless shopping experiences. Test your knowledge about this retail technology breakthrough that's reshaping traditional brick-and-mortar commerce.

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RFID tags on all products
Computer vision and sensor fusion technology
Bluetooth tracking through customer smartphones
Weight sensors on shelves that measure product removal