| CPC G06K 7/1443 (2013.01) [G06F 16/9566 (2019.01); G06K 7/1417 (2013.01); G06T 19/006 (2013.01); H04L 9/3247 (2013.01)] | 30 Claims |
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1. A method for image processing, comprising:
obtaining, from one or more image sensors, an image of an environment;
detecting a first visual code in the image;
decoding the first visual code;
verifying safety of contents of the first visual code, wherein verifying the safety of the contents of the first visual code comprises:
determining that the first visual code is signed;
determining that the first visual code includes an indication of a signing authority; and
verifying the safety of the contents of the first visual code based on the indication of the signing authority;
determining that the contents of the first visual code contain a uniform resource locator (URL); and
prefetching data linked by the URL based on verifying the safety of the contents of the first visual code.
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