| ▲ | ChrisMarshallNY 2 days ago | |||||||||||||||||||||||||||||||
Anyone remember these? https://en.wikipedia.org/wiki/High_Capacity_Color_Barcode Haven't seen one in ages. | ||||||||||||||||||||||||||||||||
| ▲ | diggan 2 days ago | parent | next [-] | |||||||||||||||||||||||||||||||
We have something similar in Barcelona (maybe entire Spain? Apparently called NaviLens, colored squares rather than triangles) all around public transit points. They're used for blind people to navigate the public transit system :) > As users sweep their environment with a smartphone, audio cues allow them to find and center the tag in the phone’s field of view. A shake of the wrist prompts the details contained within the tag to be read out (visually impaired people are often holding a guide dog or cane with their other hand). https://www.technologyreview.com/2019/06/06/135057/these-col... | ||||||||||||||||||||||||||||||||
| ▲ | alex_suzuki 2 days ago | parent | prev | next [-] | |||||||||||||||||||||||||||||||
Never saw one of those in the wild. But I have seen NaviLens codes (on cereal packaging), they use color as well: https://www.navilens.com/en/ | ||||||||||||||||||||||||||||||||
| ▲ | nielsbot 2 days ago | parent | prev | next [-] | |||||||||||||||||||||||||||||||
Tangential, but Apple also has their own machine-readable printable code format: App Clip Codes https://developer.apple.com/documentation/appclip/creating-a... | ||||||||||||||||||||||||||||||||
| ▲ | randall 2 days ago | parent | prev [-] | |||||||||||||||||||||||||||||||
they’re at every new york subway station. i don’t know why. | ||||||||||||||||||||||||||||||||
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