Abstract: The present invention provides an image processing apparatus (100) including: a query acquisition unit (109) that acquires a plurality of first frame images in time series; a skeletal structure detection unit (102) that detects a keypoint of an object included in each of a plurality of the first frame images; a feature value computation unit (103) that computes a feature value of the detected keypoint for each of the first frame images; a change computation unit (110) that computes a direction of change in the feature value along a time axis of a plurality of the first frame images in time series; and a search unit (111) that searches for a moving image by using the computed direction of change in the feature value as a key.

Abstract: An information estimation apparatus 1 for estimating a transmission point in time of a document whose transmission point in time is not specified in a document set to be analyzed includes a structure analysis unit 3 configured to specify, from the document set, a document having a document structure in which a link relationship with another document is indicated in a table-of-contents manner, and extract the link relationship of documents included in the document set from the document structure of the specified document, a grouping unit 4 configured to set a group of documents using the specified document and the extracted link relationship, and an estimation unit 5 configured to estimate, based on the set group and a transmission point in time of a document that is included in the group and whose transmission point in time is specified, a transmission point in time of a document that is included in the group and whose transmission point in time is not specified.