방송공학회논문지 (Journal of Broadcast Engineering)

  • 제22권6호
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  • Pages.734-743
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  • 2017
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  • 1226-7953(pISSN)
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  • 2287-9137(eISSN)
한국방송∙미디어공학회 (The Korean Institute of Broadcast and Media Engineers)
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부호화 패턴 분석을 이용한 동영상 삭제 검출 기법

Detection of Frame Deletion Using Coding Pattern Analysis

  • 홍진형 (한국항공대학교 항공전자정보공학부) ;
  • 양윤모 (한국항공대학교 항공전자정보공학부) ;
  • 오병태 (한국항공대학교 항공전자정보공학부)
  • 투고 : 2017.09.05
  • 심사 : 2017.10.26
  • 발행 : 2017.11.30
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초록

본 논문에서는 동영상의 압축 정보를 이용하여 동영상 조작 시 발생하는 특징 패턴을 분석하여 동영상의 삭제 여부를 검출하는 기법에 대해 소개한다. 제안 방식에서는 최근 표준 코덱으로 개발되어 향후 널리 사용될 것으로 예상되는 HEVC 코덱을 이용한다. 우선 조작된 동영상과 그렇지 않은 동영상의 HEVC 부호화 패턴 중 분류하기가 용이한 여러 패턴들을 분석하여 특징벡터로 선정하고, 선정된 특징벡터를 기계학습을 통해 학습하여 두 그룹 간의 분류 기준을 모델링하여 동영상에 대한 삭제 여부를 판단한다. 실험 결과, 제안한 방식이 이전의 연구 결과에 비해 HEVC 코덱 환경에서 더욱 효과적으로 삭제 여부를 판단함을 확인하였다.

In this paper, we introduce a technique to detect the video forgery using coding pattern analysis. In the proposed method, the recently developed standard HEVC codec, which is expected to be widely used in the future, is used. First, HEVC coding patterns of the forged and the original videos are analyzed to select the discriminative features, and the selected feature vectors are learned through the machine learning technique to model the classification criteria between two groups. Experimental results show that the proposed method is more effective to detect frame deletions for HEVC-coded videos than existing works.

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참고문헌

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