| 摘要 |
<p>An object of the invention is to provide a behavior history retrieval apparatus and a behavior history retrieval method that can also investigate a behavior history in a time period in which a part of the person to be retrieved is hidden in a blind spot or in the shade of another person in the environment in which an unspecified number of the general public behave. A meta classification section (101) assigns the degree of accuracy capable of identifying an individual to person feature information containing a face, color, shape, etc., and person passage information and stores the metadata of the person feature information and the person passage information for each degree of accuracy, a discrete retrieval section (103) retrieves the person to be retrieved in the high accuracy metadata stored by the meta classification section (101), a dependence determination section (104) determines a person having a dependence on the person to be retrieved using a plurality of retrieval results hit in the discrete retrieval and the high accuracy metadata, a query generation section (105) regenerates a retrieval key from the identifier of the person having a dependence and the identifier of the person to be retrieved, and a discrete candidate-to-candidate retrieval section (106) retrieves the person corresponding to the regenerated retrieval key in the low accuracy metadata.</p> |
