오디오의 Peak 특징을 이용한 동일 영화 콘텐츠 검색

Similar Movie Contents Retrieval Using Peak Features from Audio

  • 발행 : 2009.11.30

초록

검색을 위해 동영상 데이터 전체를 이용하면 많은 시간과 저장 공간이 필요하다. 이를 보완하고자 기존의 동일 영화 검색은 영상 정보의 일부를 이용하여 동일한 영상 검색에 사용해 왔다. 그러나 이 방법은 같은 영상임에도 비디오 부호화기이나 해상도가 다른 경우 전혀 다른 영상으로 인식한다. 따라서 본 논문에서는 동영상의 오디오 정보를 이용하여 동일한 동영상을 찾는 알고리즘을 제안한다. 제안 방법은 부호화율, 부호화기, 샘플링 수의 변화에도 유사한 파형을 형성하는 Peak 정보를 바탕으로 데이터베이스에 색인하고, 검색한다. 논문에서는 제안 방법의 성능을 확인하기 위해 1,000개의 동영상 데이터를 검색 실험하였으며, 92.1%의 성공률을 나타내었다.

Combing through entire video files for the purpose of recognizing and retrieving matching movies requires much time and memory space. Instead, most current similar movie-matching methods choose to analyze only a part of each movie's video-image information. Yet, these methods still share a critical problem of erroneously recognizing as being different matching videos that have been altered only in resolution or converted merely with a different codecs. This paper proposes an audio-information-based search algorithm by which similar movies can be identified. The proposed method prepares and searches through a database of movie's spectral peak information that remains relatively steady even with changes in the bit-rate, codecs, or sample-rate. The method showed a 92.1% search success rate, given a set of 1,000 video files whose audio-bit-rate had been altered or were purposefully written in a different codec.

키워드

참고문헌

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