Which technology powers Amazon's cashierless 'Just Walk Out' shopping experience that allows customers to take products and leave without traditional checkout?

Amazon revolutionized brick-and-mortar retail with a technology that eliminates traditional checkout processes. This system combines computer vision, sensor fusion, and deep learning to detect when products are taken from or returned to shelves, automatically charging customers' accounts when they leave the store. Test your knowledge about this groundbreaking point-of-sale innovation that has disrupted conventional retail checkout experiences.

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RFID scanning and blockchain verification
Computer vision, sensor fusion, and deep learning algorithms
Facial recognition paired with individual spending limit authorization
NFC-enabled smart shelves with weight detection sensors