VIDEO FEATURE EXTRACTING METHOD, VIDEO FEATURE EXTRACTING DEVICE, VIDEO RETRIEVING METHOD, VIDEO RETRIEVING DEVICE AND RECORDING MEDIUM IN WHICH ITS PROGRAM IS RECORDED

摘要

PROBLEM TO BE SOLVED: To efficiently retrieve video similar retrieval key video without collating all retrieving objects.;SOLUTION: A feature vector to be constituted by the distance between patterns in a state that reference pattern is extended and contracted in time axis direction so as to make best matching with time series feature patterns of featured values extracted from the retrieving object video most for the feature pattern, an index is created and stored for the feature vector, a feature vector is similarly created for a certain feature pattern in time sequence created from the inputted retrieval key video, calculation between vectors with the stored feature vector is performed, sets of plural obtained video sections and the distance between vectors are narrowed down and outputted.;COPYRIGHT: (C)2001,JPO