VIDEO INDEX IMPARTING METHOD, COMPUTER-READABLE RECORDING MEDIUM FOR RECORDING PROGRAM FOR PERFORMING METHOD BY COMPUTER, DEVICE FOR DISTRIBUTING VIDEO INDEX AND ITS PRESERVING DEVICE

摘要

PROBLEM TO BE SOLVED: To describe the meaning of video contents in real-time. SOLUTION: A video contents describing person observes a video, where an event is changed with the passage of time, imparts a video index (e.g. an important attack start index 701), which is decided to be most proper at an optional observation time point to the position of the video at the optional observation time point, observes the video where the event is changed with the passage of time after imparting the video index, imparts an invalid index (a first invalid index 702) to the video position at the point of time when impropriety is decided, when the video index imparted in the past is judged to be improper, and then invalidates the video index (the important attack start index 701) imparted in the past.