• 한국산업정보학회논문지
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• 제23권2호
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• pp.1-9
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• 2018

본 논문은 조명변화에 민감하지 않고, 사진에 대한 오인식을 방지하기 위한 얼굴인식 방법을 제안한다. 제안한 방법은 적외선과 깊이 영상을 동시에 이용하며, 적외선 영상으로 조명변화의 민감성을 해결하고, 깊이 영상으로 사진과 같은 2차원 영상에 대한 오인식을 방지한다. 적외선과 깊이 영상을 동시에 이용한 얼굴 검출 방법과 얼굴 인식을 위한 특징 추출 및 매칭 방법을 구현하였으며, 모의실험을 통하여 기존 방법에 비해 얼굴인식의 정확도가 증가함을 보인다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2004년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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• pp.70-72
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• 2004

The ferromagnetic pole piece of permanent magnet assembly for magnetic resonance imaging(MRI) is optimally designed to get high homogenious magnetic field, taking into account the non-linearity of the magnetic materials. In the design, the pole face is kept smooth and axis-symmetric by using B-spline parameterization, and nonlinear design sensitivity analysis is used for search direction.

• 한국생활과학회지
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• 제7권2호
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• pp.93-101
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• 1998

Distribution of warm sensitivity over woman skin was investigated using Thurstone's paired comparisons method on 10 healthy female students. An iron probe 20mm in diameter and 108mm in length was used for the simulator, the temperature of which was adjusted at $40{\pm}0$. $5^{\circ}C$ in a warm water bath. Twenty-two parts on the left side of the body were examined. Warm sensitivity was significantly different among the body segments, that is, higher on the face and trunk and lower on the upper and lower extremities. The correlation coefficients between warm sensitivity and the warm spots were significant in posterior.

• International journal of advanced smart convergence
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• 제11권3호
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• pp.79-84
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• 2022

Due to a series of online sex crimes cases and online class conversions caused by the spread of the coronavirus, alternatives to sex education in schools are urgently required. As a result of this study, the metaverse sex education platform was designed. Using this platform, learners are expected to cultivate correct adult awareness and digital citizenship. Within the metaverse platform, learners can participate more actively in learning. Instead of exposing one's name and face in a place dealing with sensitive gender issues, one can participate in education through his or her decorated avatar and participate in education much more actively than face-to-face education and express one's opinion through chat. In addition, education by level can be received regardless of time and place, which can have the effect of bridging the educational gap between urban and rural areas. In this paper, we propose a new sex education platform without time and space constraints by utilizing metaverse.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 춘계종합학술대회
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• pp.165-170
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• 2003

본 논문에서는 임의의 장면에도 얼굴 인식에 영향을 받지 않는 통합된 얼굴 인식 방법을 제안한다. 크기 정규화는 피부 색 분할과 log-poler 매핑 절차의 새로운 조합을 통하여 얻어지고, 주요 얼굴 구성 요소 분석은 자세 변화들을 처리하기 위하여 제안된 멀티 뷰 접근을 통해 이루어진다. 주어진 컬러 입력 이미지로부터 검출기는 얼굴을 원형 경계 안에 둘러싸고 코의 위치를 표시하며 다음 인식을 위해, 원형 경계 내에 배치하는 방사형 격자는 특징 벡터 코 중심에 두었다. 컬러로 분할된 영역의 폭으로서 얼굴의 크기를 평가하고, 추출된 특징 벡터는 평가된 크기에 의하여 정규화된 크기이다. 특징 벡터는 얼굴 인식을 위해 훈련된 신경망 분류자에게 입력된다. 시스템은 서로 다른 복합적인 배경에서 다양한 크기와 자세를 가진 20명의 얼굴 데이터 베이스를 사용하여 실험한 결과 얼굴 인식기의 수행능력은 매우 작은 크기의 얼굴 이미지 외에는 87%에서 92%의 평균 인식율을 얻을 수 있었다.

• 한국정보통신학회논문지
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• 제7권6호
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• pp.1312-1317
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• 2003

본 논문에서는 임의의 장면에도 얼굴 인식에 영향을 받지 않는 통합된 얼굴 인식 방법을 제안한다. 크기 정규화는 피부 색 분할과 log-polar 매핑 절차의 새로운 조합을 통하여 얻어지고, 주요 얼굴 구성 요소 분석은 자세 변화들을 처리하기 위하여 제안된 멀티 뷰 접근을 통해 이루어진다. 주어진 컬러 입력 이미지로부터 검출기는 얼굴을 원형 경계 안에 둘러싸고 코의 위치를 표시하며 다음 인식을 위해, 원형 경계 내에 배치하는 방사형 격자는 특징 벡터 코 중심에 두었다. 컬러로 분할된 영역의 폭으로서 얼굴의 크기를 평가하고, 추출된 특정 벡터는 평가된 크기에 의하여 정규화 된 크기이다. 특징 벡터는 얼굴 인식을 위해 훈련된 신경망 분류자에게 입력된다. 시스템은 서로 다른 복합적인 배경에서 다양한 크기와 자세를 가진 20 명의 얼굴 데이터 베이스를 사용하여 실험한 결과 얼굴 인식기의 수행능력은 매우 작은 크기의 얼굴 이미지 외에는 87%에서 92%의 평균 인식율을 얻을 수 있었다.

• 대한방사선기술학회지:방사선기술과학
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• 제5권1호
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• pp.63-70
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• 1982

In order to estimate characteristics and functions of multi hole focusing type collimator, the authors measured the sensitivity and resolution varing with the distance between the face of collimator and source by experimental study. The results obtained with this study are as follows. 1. In comparison with focal distance obtained fram sensitivity measurement of various multi hole focusing type collimator, collimator A, C, E was 10 cm and collimator B, D was 12 cm in focal distance. 2. In regard of resolution of collimators having 10 cm focal distance, collimator A showed the finest resolutions than any other collimator(C, E). 3. By comparison regarding sensitivity by focal dist ante, the shorter the distance than a give focal distance of collimator, the worse the sensitivity of collimator. 4. With regard to resolution by focal distance, the shorter the distance than a given focal distance of collimator, the worse the resolution of collimator.

• 감성과학
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• 제25권1호
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• pp.21-28
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• 2022

People differ greatly in their capacity to persist in the face of challenges. Despite significant research, relatively little is known about cognitive factors that might be involved in perseverance. Building upon human threat-management mechanism, we predicted that perseverant people would be characterized by reduced sensitivity (i.e., longer detection latency) to threat cues. Our data from 5,898 job applicants showed that highly perseverant individuals required more time to correctly identify anger in faces, regardless of stimulus type (dynamic or static computer-morphed faces). Such individual differences were not observed in response to other facial expressions (happiness, sadness), and the effect was independent of gender, dispositional anxiety, or conscientiousness. Discussions were centered on the potential role of threat sensitivity in effortful pursuit of goals.

• 대한기계학회논문집
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• 제17권9호
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• pp.2172-2180
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• 1993

Under general loadings, including body forces, crack-face tractions and thermal loading, the energy release rate equation for a two-dimensional cracked body is presented. Defining the virtual crack extension as the variation of the geometry, the equation is directly derived by a shape design sensitivity of the potential energy. Although the form of the derived energy release rate equation is different from other researchers's results, the three example show that the former is exactly the same as the latter. However, the final integral equation do not involve the derivative of the displacement on the crack surface and crack tip region, thereby improving the numerical accuracy in the computation of the energy relase rate. Moreover, as it was derived from the governing equation including non-linear elasticity without special assumptions, the energy release rate of a elasto-plastic fracture can be obtained and any numerical stress analysis method can be applied.

• Journal of Information Technology Applications and Management
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• 제29권1호
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• pp.29-45
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• 2022

The Fourth Industrial Revolution era requires people to have the ability of integrated thinking, critics, sensitivity, and creativity in an integrated manner. Therefore, teaching methods are expected to become more suitable for the trend. In this belief, current teacher-leading education method should move to students' self motivating one and consist of programs in which students voluntarily involve. In this reason, this study suggests FPBL educational method model that is combines project-based learning with flipped learning by analysing preceding research and digital painting tool class was designed by applying it. As a result of applying the designed class model to the class, all of the class satisfaction, effectiveness, and interaction were evaluated positively. Problems such as limitations of project classes due to non-face-to-face classes, large amount of learning before class, and reduced concentration during class were found. Therefore, when the FPBL class model is conducted non-face-to-face, it will be necessary to further strengthen the role of the instructor, provide lecture videos summarizing the core contents, and improve concentration by providing active participation and fun using various digital tools. The result of the study looks significant by confirming the possibility of applying FPBL model not only in design education but also other educational settings.