Patent ID: 8055076

Claim:
A tag information production apparatus, comprising: a time information acquisition section configured to acquire time information of a main image selected on a working screen; a key region setting section configured to set a key region at a position corresponding to a partial region in the main image specified arbitrarily by an operator and including: a follow-up section configured to move the key region set in the main image to follow and track movement of the partial region within the working screen, and an estimation section configured to determine an acceleration of the key region moved by the follow-up section between two separate locations on the working screen at two separate points in time, and to estimate a location of the key region between the two separate locations of the key region on the working screen based on the determined acceleration of the key region; an identification information application section configured to apply, to the set key region, region identification information which allows identification between the key region and a peripheral region; and a key image production section configured to produce a key image to which time information same as the time information of the main image is applied and in which the region identification information is applied to the key region set through the working screen.