Keeping track of the cameras in Chicago is like following a spinning number wheel. The CTA alone now has 23,000 cameras it monitors. It appears a substantial amount of these cameras use high resolution cameras that would work well with the facial recognition system in Chicago. Here is the latest on the CTA from their web site:
In May 2014, we announced the completion of a $13.9 million project to retrofit the majority of our rail fleet – more than 840 rail cars – with more than 3,300 360-degree high definition cameras. These state-of-the-art cameras can record and store high-resolution images from all angles, increasing the ability for police to identify criminal suspects.The remaining rail cars not retrofitted with cameras are in the process of being replaced with our newest generation of rail cars – the 5000-Series, which come equipped with multiple surveillance cameras.The rail car cameras are the latest addition to our already extensive rail system camera network, which more than doubled in size following an aggressive plan announced in June 2011, to install 1,800+ cameras in rail stations and platform in less than six months. All 145 CTA rail stations are now fully equipped with multiple, high definition cameras, which can provide a live-feed to the CTA Control Center and the Office of Emergency Management (OEMC).In addition, our entire bus fleet has been cameras equipped since 2003, with up to 12 cameras on each vehicle depending on model.Collectively, there are more than 23,000 cameras across the CTA. To maximize the effectiveness of this network and ensure police have quick and easy access to footage and live camera feeds, we created a new, modern video surveillance room.Occupying a former library space at CTA headquarters, the new video surveillance room is approximately 2,800 square feet and is more than 12 times larger than the previous video room. Existing resources, including surplus furniture, computers and display monitors were used in creating the new room, resulting in no added costs to the CTA. Security staff and police detectives who work with the CTA on a regular basis have access to 20 terminals with 35 displays to view video from rail stations, rail cars and buses. In addition, there are seven dedicated workspaces for CTA investigators and security specialists; a quad-screen video panel for large-scale or multi-viewing purposes; and a team conference room.