Journal of Advanced Navigation Technology (한국항행학회논문지)

The Korean Navigation Institute (한국항행학회)
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Algorithm of Face Region Detection in the TV Color Background Image

TV컬러 배경영상에서 얼굴영역 검출 알고리즘

  • Received : 2011.08.09
  • Accepted : 2011.08.30
  • Published : 2011.08.31
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Abstract

In this paper, detection algorithm of face region based on skin color of in the TV images is proposed. In the first, reference image is set to the sampled skin color, and then the extracted of face region is candidated using the Euclidean distance between the pixels of TV image. The eye image is detected by using the mean value and standard deviation of the component forming color difference between Y and C through the conversion of RGB color into CMY color model. Detecting the lips image is calculated by utilizing Q component through the conversion of RGB color model into YIQ color space. The detection of the face region is extracted using basis of knowledge by doing logical calculation of the eye image and lips image. To testify the proposed method, some experiments are performed using front color image down loaded from TV color image. Experimental results showed that face region can be detected in both case of the irrespective location & size of the human face.

본 논문에서는 텔레비전 칼라영상에서 사람의 피부색을 기반으로 얼굴영역을 검출하는 방법을 제안하였다. 제안된 방법은 피부색을 샘플링하여 기준영상으로 놓고, 텔레비전 영상의 화소와 기준영상의 화소 사이의 유클리디안(Euclidean) 거리를 이용하여 얼굴후보 영역결정을 하였다. 얼굴 후보영역에서 눈 검출은 RGB 칼라를 CMY칼라 모델로 변환 하여 Y와 C 사이의 색차성분에 대한 평균값과 표준 편차를 이용하여 검출 하였다. 입술 영역은 RGB 칼라모델에서 YIQ 칼라 공간으로 변환 하여 Q 요소로 입술 영상을 검출 하였다. 얼굴영역 검출은 눈 영상과 입술 영상을 논리연산 하여 지식 기반으로 결정 하였다. 제안된 방법의 타당성을 입증하기 위하여 텔레비전 칼라영상에서 입력받은 정면 칼라 영상으로 실험한 결과, 얼굴영역 검출이 얼굴의 위치와 크기에 관계없이 검출됨을 보였다.

Keywords

References

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