Patent ID: 8280195

Claim:
A video data indexing system comprising: an index generating unit which generates an index from inputted video data; an index accumulating unit which accumulates a plurality of the index which are related with a plurality of the inputted video data respectively; an image feature generating unit which generates an image feature from the inputted video data; an image feature accumulating unit which accumulates a plurality of the image feature which are related with a plurality of the inputted video data respectively; and an image feature checking unit which, when the image feature checking unit receives the index and the image feature of the inputted video data from the index generating unit and the image feature generating unit respectively, searches the image feature accumulating unit for an image feature which is matched with or similar to the received image feature, acquires an index related with the video data corresponding to the searched image feature from the index accumulating unit, adds the acquired index to the received index of the inputted video data, and accumulates the received index of the inputted video data which the acquired index is added, as the index of the inputted video data, in the index accumulating unit, wherein the index generating unit is an ambiguous index generating unit which extracts character information from a video and generates an ambiguous index including both of cut-out candidates and character recognition candidates acquired by recognizing characters, and the index accumulating unit is an ambiguous index accumulating unit which accumulates the ambiguous index.