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Face classification and analysis based on geometrical feature of face

얼굴의 기하학적 특징정보 기반의 얼굴 특징자 분류 및 해석 시스템

  • Received : 2012.02.22
  • Accepted : 2012.03.23
  • Published : 2012.07.31

Abstract

This paper proposes an algorithm to classify and analyze facial features such as eyebrow, eye, mouth and chin based on the geometric features of the face. As a preprocessing process to classify and analyze the facial features, the algorithm extracts the facial features such as eyebrow, eye, nose, mouth and chin. From the extracted facial features, it detects the shape and form information and the ratio of distance between the features and formulated them to evaluation functions to classify 12 eyebrows types, 3 eyes types, 9 mouth types and 4 chine types. Using these facial features, it analyzes a face. The face analysis algorithm contains the information about pixel distribution and gradient of each feature. In other words, the algorithm analyzes a face by comparing such information about the features.

본 논문에서는 얼굴의 기하학적 특징정보를 기반으로 하여 얼굴의 특징자인 눈썹, 눈, 입, 턱선의 분류 및 해석 알고리즘을 제안하였다. 먼저, 얼굴 특징정보의 분류와 해석을 하기위한 전처리 과정으로 얼굴 특징자들의 눈, 코, 입, 눈썹, 턱선을 추출하기위해 얼굴 특징자 추출 알고리즘을 적용하여 얼굴 특징자들을 추출하게 된다. 추출한 얼굴 특징자들의 형태 정보와 모양정보 및 특징자들 간의 거리비율을 검출하여 이를 평가함수화 하고, 3가지의 눈 타입, 9가지의 입 타입, 12가지의 눈썹 타입 그리고 4가지의 턱선 타입의 분류를 하게 된다. 이렇게 분류된 얼굴 특징자들을 이용하여 얼굴을 해석하게 된다. 얼굴해석 알고리즘은 각각의 특징자들에 대한 고유의 특징자들의 내부구간의 화소분포 정보와 기울기 정보를 가지고 있다. 따라서 특징자들 간의 정보를 이용하여 얼굴을 해석할 수 있었다.

Keywords

References

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