• Title/Summary/Keyword: content based copy detections

Search Result 1, Processing Time 0.021 seconds

Image Fingerprint for Contents based Video Copy Detection Using Block Comparison (블록 비교를 이용한 내용기반 동영상 복사 검색용 영상 지문)

  • Na, Sang-Il;Jin, Ju-Kyoun;Cho, Ju-Hee;Oh, Weon-Geun;Jeong, Dong-Seok
    • Journal of the Institute of Electronics Engineers of Korea SP
    • /
    • v.47 no.5
    • /
    • pp.136-144
    • /
    • 2010
  • Two types of informations are used for content-based video copy detection: spatial information and temporal information. The spatial information means content-based image fingerprint. This image fingerprint must have following characteristic. First, Extraction is simple. Second, pairwise independence for random selected two images. At last, Robust for modifications. This paper proposed image fingerprint method for contents based video copy detection. Proposed method's extraction speed is fast because this method's using block average, first order differentiation and second order differentiation that can be calculated add and minus operation. And it has pairwise independence and robust against modifications. Also, proposed method feature makes binary by comparisons and using coarse to fine structure, so it's matching speed is fast. Proposed method is verified by modified image that modified by VCE7's experimental conditions in MPEG7.