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박정주(JungJu Park),김주혜(JuHaye Kim),김명희(Myoung-Hee Kim) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.1
본 논문에서는 CAVETM-like 시스템에서 역운동학을 이용하여 사용자의 인체 움직임을 실시간으로 추정하기 위한 기법을 제안한다. 사용자를 둘러싼 스크린으로 투사되는 빛에 인하여 매순간 변화하는 배경을 포함하는 영상으로부터 사용자 영역을 추출하기 위하여 적외선 반사 영상을 이용하였다. 이를 이용하여 추출된 사용자 컬러 영상에 프로젝션 기반 가상환경의 특성을 고려한 컬러 모델을 적용하여 사용자의 얼굴과 손 영역을 추출하였다. 위치 추정 단계를 통하여 다음 프레임에서의 관심영역 위치를 미리 예측하고 추출된 사용자의 손과 얼굴 위치 정보를 말단장치로 이용하고, 관절모델과 운동학적 제약조건을 기반으로 역운동학적인 방법을 통해 사용자의 동작을 추정하였다. 제안 기법에서는 별도의 마커나 도구를 사용하지 않기 때문에 비침입적이며 사용자 움직임의 제약을 최소화할 수 있기 때문에 보다 인간 중심적인 인터랙션을 위한 기반 기술로 이용될 수 있다.
중학교 영어 문법 수업에서 Dictogloss의 효과에 관한 연구
박정주(Park, Jeong-Ju),이희경(Lee, Hee-Kyung) 한국외국어교육학회 2009 Foreign languages education Vol.16 No.1
The purpose of this study is to investigate the effect if the output in the students' productive skill. Among output focused tasks, dictogloss, which requires students to reflect on their own output, was compared with a typographical imput enhancement (TIE) technique in which targeted language forms are enhanced with bold letters. The student s in the study were third graders of a middle school, and they were divided into 3 groups: 2 dictogloss groups (one homogeneous and one heterogeneous group in their English proficiency) and 1 TIE group without output activities. The groups were taught about three different grammatical forms. The results revealed that the dictogloss groups outperformed the TIE Group and the learning effects of dictogloss differed significantly depending on grammatical forms. However, the method of grouping students did not affect the learning effects significantly. It can be drawn that dictogloss encouraged the learners to pay attention to the gap between what they knew and what they did not know by urging them to be engaged in the effective output activities. Based on the results, pedagogical implications and suggestions were made.
박정주(Park, Jeong-Joo) 한국실내디자인학회 2010 한국실내디자인학회논문집 Vol.19 No.6
‘Pattern’ is the term that is frequently used in the aspects of history, society, and science. It always appears in the remains or relics of the age of civilization when recording was started, and its evaluation and value differ by time. Patterns in the ancient civilization were symbolic, social, and spatially crucial. However, after the modernization, they were considered to be immoral and unnecessary, so the range of their significance came to reduce. Due to the development of science, ornament patterns lost the limitation of its range of use along with new interpretation of them. Especially with the advent of new scientific theories such as the evolution theory from the biological aspect, quantum mechanics, and super string theory, morphological possibilities more than the human scale perceived by men came to be discovered. Living organisms maintain their lives through patterns, structures, and processes in order to produce a system alive. Among them, patterns are the organization of relations determining the characteristics of the system. The present patterns may correspond to this meaning. The pattern in a space is the matter of how to relate the components after all. In a space, however, there are numerous components mingled with one another. If these tasks are conducted as analogue work, it will take a lot of time and effort. However, if digital media are utilized to perform the tasks like analysis, generation, or fabrication, it will produce a result with higher precision and efficiency. In this sense, parametric modeling is quite useful media. Opening morphological variation, it realizes more possibilities, connects conveniently the relations between complex components composing a space, and helps produce creative patterns.