Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. A disclosed example method includes: capturing at least one image of the audience; determining a number of people within the at least one image; prompting the audience to identify its members...http://www.google.ca/patents/US8194923?utm_source=gb-gplus-sharePatent US8194923 - Methods and apparatus for detecting a composition of an audience of an information presenting device
