Distance-space embedding for multi-descriptor matching and retrieval of the track segments in a video archive

摘要

A computerised process includes receiving an archive of video data 105 comprising a plurality of archive descriptor types, and applying a query 110 to the archive. The query includes a number of N query descriptor types for a query object. The process further includes determining a difference 115 between each query descriptor type and corresponding descriptor types of the archive, and storing each difference as a point in an N dimensional space. The process further includes identifying 125 an archive object that is similar to the query object as a function of proximities of the differences to an origin of the N dimensional space. Also claimed is a computerised process which receives a query video, query descriptors being computed on the query video, and the similarity being measured between a descriptor of a track segments in the archive and the query descriptor.