From: brian carroll <[email protected]> ---------- Forwarded message ---------- >From: CJ Knight <[email protected]> >Date: Thu, Jan 2, 2014 at 4:08 PM >Subject: Re: Fw: Hi, I'm from the government and I'm here to screw you >To: brian carroll <[email protected]> >Hi Brian, and happy new year. Thanks for another thought provoking post. >A few things you might not be aware of happening over here in Europe, >specifically the UK: >We have ANPR (Automatic Number Plate Recognition) cameras in place on >every motorway junction, plus all major roads. They aren't advertised, >they look like plain grey boxes, but people are slowly catching on to >what they do, and how much they see. A journey from one end of the >country to the other can be tracked in real time.
About 17 years ago I first learned about "3M louvered film" http://solutions.3m.com/wps/portal/3M/en_US/AutomotiveDisplay/Solutions/Products/ReflectionControlFilms/ , an extruded sheet product with tiny "louvers" of black plastic, separating clear plastic blocks. The purpose of this product was to block light passing through at a greater-than-desired angle. (the limiting angle can be varied by buying different models of material.) If a sheet was placed over a license plate, with the 'louvers' horizontal, the plate cannot be read if the camera is viewing the scene at a too-high elevation. (alternatively, or in addition, a second sheet of vertical louvers can be placed in front or back of the horizontal louvers, which would prevent the plate from being read from a camera at a too-high azimuth: the an angle, on the horizontal plane, from the side of the road). Jim Bell "jim btc tipjar" 1AzNPQ1NhiD9uG1hU5g5Kdaccb88Dus2Bo
