부분 얼굴 특징 추출에 기반한 신원 확인 시스템

최선형(SunHyung Choi),조성원(Seongwon Cho),정선태(Sun-Tae Chung) 한국지능시스템학회 2012 한국지능시스템학회논문지 Vol.22 No.2

본 논문은 얼굴인식 시스템 상에서 마스크를 착용한 변장이미지가 입력 감지될 경우 나머지 노출된 부분의 특징만을 가지고 가려진 사람의 신원을 추정하는 방법을 기술한다. 얼굴영역 검출 후에 마스크상단의 눈 주변 이미지만을 가지고 특징점 추출을 실시하여 등록된 얼굴 인증 데이터베이스와의 특징점 비교를 통해 사람의 신원을 추정한다. 매칭에 쓰일 특징점 추출에는 조명에 강인하고 영상의 크기와 회전에도 변하지 않는 특성을 가진 SIFT(Scale Invariant Feature Transform) 알고리즘을 이용한다. 특징점 매칭을 통해 정확한 매칭률은 전체 실험결과를 통해 평가한다. This paper presents a new human identification algorithm using partial features of the uncovered portion of face when a person wears a mask. After the face area is detected, the feature is extracted from the eye area above the mask. The identification process is performed by comparing the acquired one with the registered features. For extracting features SIFT(scale invariant feature transform) algorithm in used. The extracted features are independent of brightness and size-and rotation-invariant for the image. The experiment results show the effectiveness of the suggested algorithm.

자세에 강인한 얼굴검출 및 인식 시스템

최선형(SunHyung Choi),김준영(Jun Young Kim),이기성(KiSung Lee),정선태(SunTae Jung),조성원(SungWon Cho) 한국지능시스템학회 2010 한국지능시스템학회 학술발표 논문집 Vol.20 No.1

본 논문은 에이다부스트 알고리즘을 통한 얼굴 검출 기술에서 학습된 하-웨이블렛의 개별값을 비교하여 대략적인 자세를 추정하는 방법을 소개한다. 학습된 하-웨이블렛은 얼굴 검출 과정중 각각 계수값을 비교하여 각 자세의 특징에 강인한 하 웨이블렛을 선별한다. 하-웨이블렛 선별과정에는 각 항목의 유사도를 나타내는 마할라노비스 거리를 사용하였다. 선별된 하-웨이블렛을 사용하여 엄의의 얼굴 이미지를 검출하였을 때 각각의 자세를 구별하는 결과를 전체 실험결과를 통해 평가한다. This paper introduces the way of assuming brief pose by comparing haar-wavelet's each value which is learned in face detection technology through Adaboost algorithm. Learned haar-wavelet sorts strong haar-wavelet for each pose's feature by making a comparison each value of coefficient on the process. we used mahalanobis distance which denote each item's degree of parallel in the process of haar-wavelet sorting. When we analyze out random facial image by using sorted haar-wavelet, we estimate consequence which distinguish each pose through effect of whole experiment.

변장 감지에 기반한 얼굴 인식 시스템

최선형(SunHyung Choi),김준영(JunYoung Kim),이기성(KiSung Lee),정선태(SunTae Jung),조성원(SungWon Cho) 한국지능시스템학회 2010 한국지능시스템학회 학술발표 논문집 Vol.20 No.2

본 논문은 얼굴인식 시스템 상에서 마스크를 착용한 변장이미지가 입력되어 감지될 경우 나머지 노출된 부분의 특징만을 가지고 가려진 사람의 신원을 추정하는 방법을 소개한다. 얼굴영역 검출 후에 마스크상단의 눈 주변이미지만을 가지고 특징점 추출을 실시한 다음 등록된 언굴 인증 데이터 베이스와의 특징점 비교를 통해 사람의 신원을 추정한다. 매칭에 쓰일 특징점 추출에는 조명에 강인하고 영상의 크기와 회전에도 변하지 않는 특성을 가진 SIFT(scale invariant feature transform, 크기불변특징변환) 알고리즘을 이용한다. 특징점 매칭을 통해 정확한 매칭률을 전체 실험결과를 통해 평가한다.

얼굴의 자세추정을 이용한 얼굴인식 속도 향상

최선형(SunHyung Choi),조성원(Seongwon Cho),정선태(Sun-Tae Chung) 한국지능시스템학회 2010 한국지능시스템학회논문지 Vol.20 No.5

본 논문은 AdaBoost 알고리즘을 통한 얼굴 검출 기술에서 학습된 하-웨이블렛의 개별값을 비교하여 대략적인 자세를 추정하는 방법과 이를 이용한 얼굴인식 속도 향상에 대하여 기술한다. 학습된 약한 분류기는 얼굴 검출 과정 중 각각 계수값을 비교하여 각 자세의 특징에 강인한 하-웨이블렛을 선별한다. 하-웨이블렛 선별과정에는 각 항목의 유사도를 나타내는 마할라노비스 거리를 사용하였다. 선별된 하-웨이블렛을 사용하여 임의의 얼굴 이미지를 검출하였을 때 각각의 자세를 구별하는 결과를 전체 실험결과를 통해 평가한다. This paper addresses a method of estimating roughly the human pose by comparing Haar-wavelet value which is learned in face detection technology using AdaBoost algorithm. We also presents its application to face recognition. The learned weak classifier is used to a Haar-wavelet robust to each pose's feature by comparing the coefficients during the process of face detection. The Mahalanobis distance is used to measure the matching degree in Haar-wavelet selection. When a facial image is detected using the selected Haar-wavelet, the pose is estimated. The proposed pose estimation can be used to improve face recognition speed. Experiments are conducted to evaluate the performance of the proposed method for pose estimation.

의류업체의 시장지향성과 성과 간 판매원 만족과 고객만족의 매개적 역할

최선형 한국의류학회 2003 한국의류학회지 Vol.27 No.6

Recent Studies have shown evidence of a positive relationship between market orientation and performance. However, some scholars have suggested that customer satisfaction, salespeople's job satisfaction, and product quality etc. could moderate this relationship. According to the increase of market oriented efforts of apparel firms and importance of the salespeople's role, this study focuses on the effect of market orientation on performance of apparel firms through the salespeople's job satisfaction and customer satisfaction. It is found that market orientation has a positive effect on the salespeople's job satisfaction and customer satisfaction. The salesperson's job satisfaction was found to influence on the performance through the customer satisfaction. The customer satisfaction has strong influence on the performance directly. Market orientation appears to provide a unifying focus for the efforts of salespeople within the organization, thereby leading to customer satisfaction and superior performance.

성인 남녀의 라이프스타일에 따른 패션성향 연구

최선형 가톨릭대학교 생활과학연구소 2010 생활과학연구논집 Vol.30 No.1

지각된 제품 특성과 과시적 소비 성향이 패션명품관여에 미치는 영향

최선형 한국의류학회 2003 한국의류학회지 Vol.27 No.2

The Purpose of this study is to investigate the effects of the perceived luxury characteristic and consumer's conspicuous consumption on the fashion luxury involvement. The subjects were Korean 443 women from 20's to 50's living in Seoul. The reliability analysis, confirmatory factor analysis and structural equation analysis by AMOS 4.0 were used for statistics analysis. The results are as follows; 1) The perceived aesthetic taste and luxurious aspect of fashion luxury directly influence on fashion luxury involvement through hedonic consumption value. 2) The perceived luxurious aspect and traditional value of fashion luxury directly influence on negative luxury consumption value, but negative consumption value does not influence on fashion luxury involvement. 3) The well-known brand orientation, face-saving consumption, and value orientation directly influence on fashion luxury involvement.

Y 세대의 힙합패션 구매행동에 관한 연구

김현숙,최선형 한국의류학회 2002 한국의류학회지 Vol.26 No.9,10

The purpose of this study was to classify Y generation according to Hip Hop mania elements and to investigate the differences in psychological characteristics (self-consciousness, egocentrism) and buying behavior of Hip Hop fashion among the classified groups. The subjects were 500 middle and high school students living in Seoul and Kyonggi area.469 data were analysed using cluster analysis, ANOVA and Duncan's multiple range test. The results were as follows: As a result of classifying Y generation with Hip Hop mania elements including behavior and attitude aspect, they were classified into three groups; Hip Hop mania group, Hip Hop interesting group, Hip Hop uninterested group. Among groups there were significant differences in public and private self-consciousness, self-centeredness, evaluative criteria of Hip Hop fashion, information sources and clothing store patronage. Hip Hop Mania group showed significantly higher level in both public and private self-consciousness, thus the members of the group were so egocentric in their thinking and behavior. When they purchased Hip Hop fashion, they regarded both aesthetic appreciation and practicality as important factors.

의류업체의 시장지향성과 판매원의 직무능력이 판매원 만족에 미치는 영향

김혜정,최선형 한국의류학회 2003 한국의류학회지 Vol.27 No.1

The purpose of this study is to examine the components of market orientation of apparel firms and to examine the influence of market orientation, and salesperson's job performance on the salesperson's job satisfaction. Data were obtained from 547 shop-masters working at L, Department Stores in Seoul and Bundang. Statistic used for data analysis were frequency, factor analysis, cronbach's α and multiple regression analysis. The results can be summarized as follows: ⑴ The market orientation of apparel firms is composed of three factors: information generation, information dissemination, and the responsiveness to market information. ⑵ Market orientation was found to have a positive effect on salespeople's job satisfaction. ⑶ salespeople's job performance was found to have a positive effect on salespeople's job satisfaction.