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Face Tracking System Using Updated Skin Color

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(1)

서 론 1.

안경희, 김종호

Kyung-Hee Ahn , Jong-Ho Kim

(2)

얼굴 검출 및 추적 시스템 전체 구성 2.

얼굴 후보영역 검출 2.1

      ∈



 

 

    

× 

 × 

Fig. 1. Main stages of the proposed face tracking system.

(3)

       ∙      × 

  

  

Fig. 2. Structure of the proposed face candidate region detection system.

Fig. 3. Calculating the median value of pixel neighborhood.

Fig. 4. Images used for skin color training.

(4)

α

α

특징 추출 및 분류기 학습 2.2

Fig. 5. Processing of Grass Fire labeling algorithm.

Fig. 6. Examples of detecting face candidate region.

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분류기 학습 2.3

 ×

를 이용한 얼굴 추적 2.4 Kalman filter Mean shift

실험 및 결과 분석 3.

Fig. 7. Five Haar-like features used in the facial de- tection system.

Fig. 8. Structure of the proposed face detection system.

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학습된 피부색과 업데이트된 피부색 비율에 따른 3.1

피부색 검출 결과 α

α

α

α

적응적 스킨칼라를 이용하였을 때와 전체 영상에 3.2

서 얼굴을 검출하였을 때의 비교 실험

다양한 조건에서의 얼굴 검출 3.3

Fig. 9. Detection rate according to the value of α.

Fig. 10. Examples of non-face regions detected as facial regions.

(7)

실험결과 3.4

Fig. 11. Examples of facial regions detected from face candidates.

Fig. 12. Local occlusion sequence in face tracking.

Fig. 13. Face tracking in a heavily rotated face.

(8)

결 론 4.

 ×

REFERENCE

Table 1. Performance of proposed method in comparison to the conventional method

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(10)

수치

Fig. 1. Main stages of the proposed face tracking system.
Fig. 2. Structure of the proposed face candidate region detection system.
Fig. 5. Processing of Grass Fire labeling algorithm.
Fig. 8. Structure of the proposed face detection system.
+4

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