Google famously banned face recognition on Glass after I and some other developers made demo apps and APIs for using it:
<a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=E1aeMJY1AO0" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=E1aeMJY1AO0</a><p>Even now that Glass has been canceled for all but commercial use, it&#x27;s still in the guidelines that you aren&#x27;t allowed to use face recognition:
&gt; <a href="https:&#x2F;&#x2F;developers.google.com&#x2F;glass&#x2F;policies?hl=en" rel="nofollow">https:&#x2F;&#x2F;developers.google.com&#x2F;glass&#x2F;policies?hl=en</a>
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Don&#x27;t use the camera or microphone to cross-reference and immediately present personal information identifying anyone other than the user, including use cases such as facial recognition and voice print. Glassware that do this will not be approved at this time.
&quot;<p>Amusingly, my nursing notes demo was me trying to be politically correct. People were more interested in things like cross referencing most wanted lists and sexual offender lists.