| 摘要 |
A system for targeting adverts at viewers comprising a set box (STB) (22) having a processor that is operable to read a plurality of viewer characteristics relating to an image that is currently being viewed. These viewer characteristics typically provided by the television broadcaster or another remote data center (24). The viewer characteristics are used by the STB (22) to construct a multi-dimensional viewer profile. Each time the viewer views a television program, the information in the viewer profile is updated. In order to target adverts at specific viewers, the viewer profile is compared with a multi-dimensional target viewer profile associated with an advert. In the event that there is a sufficient match, the advert is displayed on the television screen.
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