Methods and apparatus to measure brand exposure in media streams

An article of manufacture comprising computer readable instructions that, when executed, cause a process to at least:

• compare a signature determined from a detected scene obtained from a media presentation with a library of reference signatures corresponding to reference media to identify a first reference scene representative of the detected scene;
• classify the detected scene as a scene of changed interest in response to determining a first region of interest in the detected scene, which corresponds to a first region of interest specified in the first reference scene, does not include a first reference brand identifier specified as being included in the first region of interest in the first reference scene;
• and
• in response to the detected scene being classified as a scene of changed interest, (1) present the detected scene, (2) prompt for selection of an area of the first region of interest in the detected scene and (3) compare the selected area to a library of reference brand identifiers to identify a second reference brand identifier included in the first region of interest in the detected scene.

A system to detect brand exposures included in a media presentation, the system comprising:

• means for comparing a signature determined from a detected scene obtained from the media presentation with a library of reference signatures corresponding to reference media to identify a first reference scene representative of the detected scene;
• means for classifying the detected scene as a scene of changed interest in response to determining a first region of interest in the detected scene, which corresponds to a first region of interest specified in the first reference scene, does not include a first reference brand identifier specified as being included in the first region of interest in the first reference scene;
• and
• user interface means, responsive to classifying the detected scene as a scene of changed interest, for (1) presenting the detected scene, (2) prompting for selection of an area of the first region of interest in the detected scene and (3) comparing the selected area to a library of reference brand identifiers to identify a second reference brand identifier included in the first region of interest in the detected scene.