Which scientific innovation was first successfully implemented by Amazon in their Amazon Go stores, revolutionizing the checkout experience?

In the intersection of science and retail, innovation labs have revolutionized how we shop and interact with products. These labs have pioneered technologies that seamlessly blend scientific advancement with consumer experience. This trivia question tests your knowledge of a groundbreaking scientific retail innovation that changed how consumers interact with products in physical stores.

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Computer vision and deep learning sensors that enable 'Just Walk Out' technology
RFID-based automated inventory tracking system
Biometric payment authentication using fingerprint and retinal scanning
AR-powered smart mirrors that suggest complementary products