Of course, video surveillance is nothing new. What's particularly interesting about this footage is that it was used in conjunction with a new type of "people-parsing" software. For these concerts, IBM provided the city with a software dashboard for surveillance, and it went beyond just recognizing faces. A "people search" tool available in the dashboard shows that the software recognized and categorized a number of searchable facets about concert attendees. These include "'baldness,' 'head color,' 'skin tone,' and clothing texture," making it possible to search the footage for images of everyone by outfit as well as by race.