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모션 벡터의 각도 성분 추정을 통한 카메라 움직임 검출

Camera Motion Detection Using Estimation of Motion Vector's Angle

  • Kim, Jae Ho (Dept. of Electronic Eng., Graduate School, Pusan National University) ;
  • Lee, Jang Hoon (Dept. of Electronic Eng., Graduate School, Pusan National University) ;
  • Jang, Soeun (Research Center of QTT, Inc.)
  • 투고 : 2018.06.14
  • 심사 : 2018.07.18
  • 발행 : 2018.09.30

초록

In this paper, we propose a new algorithm that is robust against the effects of objects that are relatively unaffected by camera motion and can accurately detect camera motion even in high resolution images. First, for more accurate camera motion detection, a global motion filter based on entropy of a motion vector is used to distinguish the background and the object. A block matching algorithm is used to find exact motion vectors. In addition, a matched filter with the angle of the ideal motion vector of each block is used. Motion vectors including 4 kinds of diagonal direction, zoom in, and zoom out are added additionally. The experiment shows that the precision, recall, and accuracy of camera motion detection compared to the recent results is improved by 12.5%, 8.6% and 9.5%, respectively.

키워드

참고문헌

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