| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and device for detecting feature suitable for a content including an audio signal such as voice and a music piece, with low processing load. SOLUTION: The device includes: an information analysis section 440 for obtaining classification information of a stream from an input stream; an analysis control section 450 for specifying a method for analyzing the input stream from the classification information obtained by the information analysis section; a feature parameter conversion section 460 which analyzes the input stream based on the analyzing method specified by the analysis control section, and which converts it to the feature parameter to be specified as a detection item; a detection processing section 470 for detecting whether or not, the detection item which is the feature parameter specified by the feature parameter conversion section, is included in the input stream; and an indexing section 480 for holding a detection result of the detection item which is detected by the detection processing section, so as to be retrieved when playing back the input stream. COPYRIGHT: (C)2009,JPO&INPIT
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