The Walkers Tracking Algorithm using Color Informations on Multi-Video Camera

다중 비디오카메라에서 색 정보를 이용한 보행자 추적

  • 신창훈 (청주대학교 전자공학과) ;
  • 이주신 (청주대학교 전자공학과)
  • Published : 2004.08.01

Abstract

In this paper, the interesting moving objects tracking algorithm using color information on Multi-Video camera against variance of intensity, shape and background is proposed. Moving objects are detected by using difference image method and integral projection method to background image and objects image only with hue area, after converting RGB color coordination of image which is input from multi-video camera into HSI color coordination. Hue information of the detected moving area are segmented to 24 levels from $0^{\circ}$ to $360^{\circ}$. It is used to the feature parameter of the moving objects that are three segmented hue levels with the highest distribution and difference among three segmented hue levels. To examine propriety of the proposed method, human images with variance of intensity and shape and human images with variance of intensity, shape and background are targeted for moving objects. As surveillance results of the interesting human, hue distribution level variation of the detected interesting human at each camera is under 2 level, and it is confirmed that the interesting human is tracked and surveilled by using feature parameters at cameras, automatically.

본 논문은 조도, 형태, 배경의 변화에 강인한 다중 비디오카메라에서 색 정보를 이용한 보행자 추적에 대하여 제안한다. 제안된 방법은 비디오카메라로부터 입력되는 영상의 색조만을 이용하여 배경영상과 물체가 존재하는 영상에서 차영상 기법과 가산투영 기법을 사용하여 이동물체를 검출한다. 검출된 이동물체 영역의 색조는 0도부터 360도 사이에서 15도씩 24단계로 분할된다. 검출된 이동물체 영역의 색조 분포도를 구한 후, 가장 높은 분포를 갖는 3개의 색조 레벨과 3개의 색조 레벨 사이의 차를 이동물체의 특징파라미터로 사용하였다. 제안된 방법의 유용성을 증명하기 위하여 조도와 형태의 변화가 발생한 보행자 영상과 조도, 형태, 배경의 변화가 발생한 보행자 영상을 이용하여 보행자를 감시한 결과 카메라에서 검출된 특정사람의 색조 분포 레벨과 색조 레벨 사이의 차는 2레벨 이하로 유지함을 보였고, 제안된 특징 파라미터로 특정사람이 자동 추적감시 됨을 확인하였다.

Keywords

References

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