METHOD AND DEVICE FOR INDEX GENERATION, INDEX ADDITION SYSTEM, PROGRAM, AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To add an index which matches user's interest and preference and is usable to generate a shorter digest. SOLUTION: The index generating device which generates an index as data wherein the contents of video are described is equipped with an index description device 51 which previously defines index basic information 61 as information regarding the index, an input video display device 52 which displays out the contents where the index is added, a trigger action input device 53 which receives an input to a trigger action in the displayed-outputted contents, and an index decision device 54 which generates index information 63 according to the index basic information 61 defined by the index description device 51 and the trigger action input history information 62 inputted by the trigger action input device 53.