[특허]Method and apparatus for extracting indexing information from digital video data

Method and apparatus for extracting indexing information from digital video data 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04N-005/91
출원번호	US-0723594 (1996-10-01)
발명자 / 주소	Chang Yuh-Lin Zeng Wenjun
출원인 / 주소	Matsushita Electric Industrial Co., Ltd., JPX
대리인 / 주소	Harness, Dickey & Pierce, P.L.C.
인용정보	피인용 횟수 : 119 인용 특허 : 0

초록 ▼

A method and apparatus to automatically index the locations of specified events on a video tape. The events, for example, include touchdowns, fumbles and other football-related events. An index to the locations where these events occur are created by using both speech detection and video analysis algorithms. A speech detection algorithm locates specific words in the audio portion data of the video tape. Locations where the specific words are found are passed to the video analysis algorithm. A range around each of the locations is established. Each range is segmented into shots using a histogram technique. The video analysis algorithm analyzes each segmented range for certain video features using line extraction techniques to identify the event. The final product of the video analysis is a set of pointers (or indexes) to the locations of the events in the video tape.

대표청구항 ▼

[ It is claimed:] [1.] A computer-implemented speech and video analysis system for creating an index to indicate locations of a first event occurring within audio-video data, said audio-video data containing audio data synchronized with video data to represent a plurality of events, said first event having at least one audio-feature and at least one video-feature indicative of said first event, comprising the steps of:(a) providing a model speech database for storing speech models representative of said audio-feature;(b) providing a model video database for storing video models representative of said video-feature;(c) performing wordspotting to determine candidates by comparing said audio data with said stored speech models, said candidates indicating positions of said audio-feature within said audio data;(d) establishing predetermined ranges around each of said candidates;(e) segmenting into shots those portions of said video data which are located within said ranges;(f) analyzing said segmented video data to determine video-locations based on a comparison between said segmented video data and said stored video models, said video-locations indicating positions of said video-feature within said segmented video data; and(g) generating an index to indicate locations of said first event based on said video-locations.

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Method and apparatus for extracting indexing information from digital video data 원문보기

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Method and apparatus for extracting indexing information from digital video data 원문보기

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