Verification of advertising impressions in a user-adaptive multimedia distribution framework

摘要

Embodiments contemplate detection, estimation and / or adaptation to user presence, proximity and / or ambient lighting conditions. Embodiments also contemplate user proximity estimation based on inputs from mobile device sensors. Embodiments further contemplate volume adjustment and / or audio bitstream selection based on these parameters: user location, age, gender, ambient noise level, and / or one or more estimates of multiple users. Embodiments also contemplate detection, estimation and / or adaptation of user presence and / or user attention to advertisements, possibly delivered at various locations through various mechanisms.