Occasionally I’ll encounter sign-in processes that have a field for a username, password, and then beside them is some random picture. It’s always different. Maybe it’s a hot air balloon, or a dog, or a lighthouse (lighthouses rule). In any case, I didn’t choose it as my “key” or anything. It’s just… there. What purpose does it serve? I assume it’s for some form of security, but how does it work?
In: Technology
Photo-based CAPTCHAs that include images of buses, traffic lights, and other road-related items serve multiple purposes. Primarily, they are designed to distinguish humans from bots by leveraging tasks that are easier for humans to perform, such as identifying objects in images, which are challenging for automated systems.
Additionally, these CAPTCHAs contribute to training AI systems, particularly those related to self-driving cars. By asking users to identify traffic-related images, the data collected helps improve the AI’s ability to recognize and interpret such objects in real-world scenarios. This process is similar to how earlier CAPTCHAs helped improve Optical Character Recognition technology by having users transcribe “difficult for bots to read” text.
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