[sudo-discuss] anti-surveillance mask: not so easy...

[GtwoG PublicOhOne]

Yo's-

As of a few years ago, one of the state-of-the-art techniques for
computer face recognition utilized the geometry of the distances and
angles between the "seven holes" on a face: the eyes, nostrils, mouth,
and ears.  These are attributes that can't be altered without resorting
to very hardcore surgery.

For a mask of this type to be effective, it has to:

a) Allow only the wearer's eyes to be seen (because the wearer has to be
able to see out).
b) Be worn with a hood or a hat that covers the entire ears e.g. a knit cap.
c) Have no "holes" for the wearer's nose or mouth.

In addition the wearer should also wear reflective sun glasses to
obscure their eyes.

Even the eyes, by themselves, might be usable for unique identification
from a distance, if the details of the iris can be picked up by a
suitable camera.  Even without the iris, eyes might be usable based on
distances and angles: distance between pupils, angles between corners of
eyes relative to vertical and horizontal planes, any degree of
consistent variation in the "aim" of the eyes, etc.  Reflective sun
glasses are always a good idea.

A few other things that come to mind:

Dust masks and similar anti-viral (N-95) face masks (it's not a mask,
it's flu/allergy/whatever season!).  Freedom-of-religion claims, to wear
certain types of clothing that have the effect of masking one's face
(one doesn't need to believe in a deity in order to exercise freedom of
religion).  Burqas for men (also a statement of solidarity with women
who wear the burqa either as a freely-chosen expression of Muslim
identity or as the outcome of being denied the choice to do otherwise by
patriarchial culture).  Face paint and similar makeup that obscures
facial details in the manner of the "artistic" Naval camouflage used in
WW1.  Earphones of the oldschool over-the-ear style that cover the ears
(it's not a mask, it's music!).  Certain types of occupational safety
gear such as hard hats and welders' face shields.  Wigs and other
hairpieces.  Motorcycle helmets and ultra-safe bicycle helmets that look
like motorcycle helmets.

Ideal case, a "look like someone else" face mask that can be worn from a
headband so it can be flipped up easily when needed; and the headband
can be concealed under a hood or hat.

Cheers-

-G


Boycott GMAIL:

(G)oogle
(M)onitors
(A)ll
(I)ncoming
(L)etters

(Credit to Troy, spread the meme.)



 =====



On 14-05-12-Mon 1:17 PM, Hol Gaskill wrote:
> there's always liquid latex - not sure on being able to pull it off without deforming permanently though
>
> on May 12, 2014, Patrik D'haeseleer <patrikd at gmail.com> wrote:
>> And to top it off - here's some instructions for how to photoshop a wrap-around mask:>>http://www.instructables.com/id/head-in-a-jar-prank/> >
> Patrik>
>>> On Mon, May 12, 2014 at 12:55 PM, Patrik D'haeseleer <patrikd at gmail.com> wrote:>>Ooh - I got it: Spoonflower's Modern Jersey material! > >
> It's stretchable, it's breathable, and it's only $26.50/yard, printed with any design>you want. Currently out of stock tho :-(> >
> One yard is 91cm, 142cm wide, so you should be able to get about 28 20x20cm masks>out of that - at less than $1 per mask!>>
> Patrik> >
> PS: For the academics in the room, check out these beautiful fabric posters, which is where I got the idea from...>
>
>>> On Mon, May 12, 2014 at 12:24 PM, Patrik D'haeseleer <patrikd at gmail.com> wrote:>>Hmm... Shapeways' 3D printed "full color sandstone"?> >
> Needs to be a minimum of 2mm thick, so if you're making a 20cm x 20cm mask, that would>come out around $60 or so.> >
> This stuff is pretty fragile (there's a reason it's called full color *sandstone*),>so you'd probably want to coat or impregnate it with something that'll give it more>strength. >>
> Or you could just print on paper - much easier and cheaper.> >
> Does anyone know of a flexible rubber sheet material that can be inkjet printed? That>would be the next best thing, I guess.>>
> Patrik> 
>>> On Mon, May 12, 2014 at 11:42 AM, Matthew Senate <mattsenate at gmail.com> wrote:>
>> http://www.cnet.com/news/urme-anti-surveillance-mask-lets-you-pass-as-someone-else/>>
> http://www.thatsmyface.com/Custom-Wearable-Masks/Custom-Wearable-Mask/flypage.ilvm_grey.tpl.html>
> ~$300 here, I wonder where you could get a cheaper one...
> // Matt
>
> _______________________________________________> sudo-discuss mailing list> sudo-discuss at lists.sudoroom.org> https://lists.sudoroom.org/listinfo/sudo-discuss> >
>
>
>
>>> _______________________________________________>sudo-discuss mailing list>sudo-discuss at lists.sudoroom.org>https://lists.sudoroom.org/listinfo/sudo-discuss>
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss at lists.sudoroom.org
> https://lists.sudoroom.org/listinfo/sudo-discuss
>