Patent ID: 8140458

Claim:
An information processing apparatus comprising: plural information input units that input information including image information or sound information in an actual space; an event detecting unit that generates event information including estimated position information and estimated identification information of users present in the actual space by analyzing the information inputted from the plural information input units, wherein: the event detecting unit comprises a sound-event detecting unit and an image-event detecting unit; the sound-event detecting unit generates identification information of users on the basis of comparison processing with characteristic information of user voices registered in advance; and the image-event detecting unit generates user identification information on the basis of comparison processing with characteristic information of user faces registered in advance; and an information-integration processing unit that: sets probability distribution data of hypotheses concerning position and identification information of the users; inputs the event information generated by the event detecting unit; executes particle filtering processing to which plural particles set with plural targets corresponding to virtual users are applied; executes update processing for the targets set for the respective particles taking into account elapsed time; and executes generation of analysis information including user position information and user identification information of the users present in the actual space by updating and selecting the hypotheses on the basis of the event information.