Reply #1 p0ison's post
This is actually my area of expertise so I’ll weigh in.
First, it isn’t facial recognition unless there is a reference sample from which to identify you. It is just facial caputre.
If you don’t opt in to provide your info, then they have your face, as do about 1,000 other cameras you walk by each day, but they can’t reference a sample with your specific data.
Hit rates in many progressive face capture technologies are currently at or above 95% in capture when properly installed and calibrated, this is no simple act either. There are vast number of variables that either enhance or degrade capture rates in current systems.
Many current technologies leverage what is called progressive assessment of faces. Basically, this means once an initial face is captured, it is cataloged and in the future if there is some level of abhorrent behavior by a person that capture is compared to the cataloged faces for a “match”. The matching is a variable set by the system operator that can provide a accuracy scale on the search criteria.
So you can say, show me all faces that are a 80% match or better and you get X number of results. Change it to 60% match and you get 5 times as many posssible matches. If you find a match from the system recommendations and you link it, the system now learns that face and get more accurate in the next search for that specific face. The more human verified matches a face has, the greater the likelihood that eventually the system can do live recognition searches for that face in the future.
Basically, unless you do something to become a reference sample, you will never know this tech is even in use. Currently in the US there are several retail companies that capture well over 1 million faces per day. They just don’t advertise their use or ability to the media like this. I have no doubt this was done by the technology vendor and 7-11 is not happy they did it. | |
