유도 전동기의 고속 운전 영역에서 누적 방지 기법에 따른 센서리스 제어 성능에 대한 연구

권오륜(Oh-Ryun Kwon),전미림(Mi Rim Jeon),김정한(Jung-Han Kim),이학준(Hak-Jun Lee),홍찬욱(Chan-Ook Hong),박철현(Cheol-Hyun Park),권순창(Soon-Chang Kwon) 전력전자학회 2022 전력전자학술대회 논문집 Vol.2013 No.11

스포츠윤리의 실천적 원리로서의 유학

권오륜(Kwon, Oh-Ryun),한동일(Han, Dong-il),김희섭(Kim, Hee-Sub),김정효(Kim, Jeong-Hyo) 한국체육철학회 2018 움직임의철학 : 한국체육철학회지 Vol.26 No.3

퇴장의 윤리학적 이해

권오륜(Lee, Hak Jun),이학준(Kwon, Oh Ryun) 한국체육철학회 1999 움직임의철학 : 한국체육철학회지 Vol.7 No.1

Soccer is well known sports game with little economic cost and simple rules. `98 soccer world cup is hitting up to ceiling. But we had many players who ejected from the ground than ever. That is caused by too much concerns on the game. So I dealt with the moral problems in the soccer`s ejection. Ejection is made for prevent players from injury, and also pursuits their self-realization, freely performed artistic soccer. It is for smoothly managed game. So, judes should minimize the usage only for well done game. Those ejections in this world cup game made players timid and cut those chances to perform artistic soccer. It can be a chance to do their best and reveals fair play by moral ability, furthemore, it offers decent place far players self-realization. it is a problem that people consider ejection to holistic problem of the team. First. It is a problem of equality. If a team fights with 10 players by a ejection, it cause inequality problem with opposite. Regularly performed game is impossible and game goes brutally with a lot of drained physical fitness. Moreover, game is strongly be a game that is not nice, but a merely competition driven game for not lose. I also have a little different opinion on the ejection in soccer game. I`m urging players can be swapped in case of ejection. Like handball games, we can apply 10, 20 minutes, and all-time ejection for impartial game management and prevent players` disadvantages. The most important thing is players should clearly keep in mind ejection as death in the soccer world But, they mustn`t abuse it for their team`s winning. This kind of morality is depend on players` and managers` moral ability. Finally, we should make fair play spirit is real motto which is working on the real ground.

양명학의 체육철학적 접근

권오륜(Oh Ryun Kwon) 한국체육철학회 2002 움직임의철학 : 한국체육철학회지 Vol.10 No.1

Yangminghak, which was the trend thoughts in the middle of the time of the Myung dynasty, was introduced by Wang Su-in (1472 -1528 字, 佰安, 號, 陽明). It was an alternative to tide over the constructional contradiction of 理學(朱子學). and to find out the logical progress of the social historical situation. Wang Su-in intended to correct the social and political decay and the academic abuse, so he proposed the unity of morals and behavior as the practical morality on the basis of 心卽理. Therefore his lifelong physical movement contained his thinking basis. Yangming was absorbed in horse riding and archery when he was 15 years old. Through riding and archery he could do his role as a soldier. He liquidated guerrillas in Saju and Jyunju in 1528 when he was 56 years old - one year before dying. Also they show his practical view of the world which means the united society on the basis of 致良知, and support 身心之學 founded on 仁. He exercised 導引術 for health and recreation. Yangming taught teenagers a good posture. It accords with today`s aim of physical education which plans to progress personality through the normal growth and development of the good posture - the education centered on whole person.

얼굴 모션 추정과 표정 복제에 의한 3차원 얼굴 애니메이션

권오륜,전준철,Kwon, Oh-Ryun,Chun, Jun-Chul 한국정보처리학회 2007 정보처리학회논문지B Vol.14 No.4

본 논문에서는 강건한 얼굴 포즈 추정과 실시간 표정제어가 가능한 비전 기반 3차원 얼굴 모델의 자동 표정 생성 방법 및 시스템을 제안한다. 기존의 비전 기반 3차원 얼굴 애니메이션에 관한 연구는 얼굴의 움직임을 나타내는 모션 추정을 반영하지 못하고 얼굴 표정 생성에 초점을 맞추고 있다. 그러나, 얼굴 포즈를 정확히 추정하여 반영하는 작업은 현실감 있는 얼굴 애니메이션을 위해서 중요한 이슈로 인식되고 있다. 본 연구 에서는 얼굴 포즈추정과 얼굴 표정제어가 동시에 가능한 통합 애니메이션 시스템을 제안 하였다. 제안된 얼굴 모델의 표정 생성 시스템은 크게 얼굴 검출, 얼굴 모션 추정, 표정 제어로 구성되어 있다. 얼굴 검출은 비모수적 HT 컬러 모델과 템플릿 매칭을 통해 수행된다. 검출된 얼굴 영역으로부터 얼굴 모션 추정과 얼굴 표정 제어를 수행한다. 얼굴 모션 추정을 위하여 3차원 실린더 모델을 검출된 얼굴 영역에 투영하고 광류(optical flow) 알고리즘을 이용하여 얼굴의 모션을 추정하며 추정된 결과를 3차원 얼굴 모델에 적용한다. 얼굴 모델의 표정을 생성하기 위해 특징점 기반의 얼굴 모델 표정 생성 방법을 적용한다. 얼굴의 구조적 정보와 템플릿 매칭을 이용하여 주요 얼굴 특징점을 검출하며 광류 알고리즘에 의하여 특징점을 추적한다. 추적된 특징점의 위치는 얼굴의 모션 정보와 표정 정보의 조합으로 이루어져있기 때문에 기하학적 변환을 이용하여 얼굴의 방향이 정면이었을 경우의 특징점의 변위인 애니메이션 매개변수(parameters)를 계산한다. 결국 얼굴 표정 복제는 두 개의 정합과정을 통해 수행된다. 애니메이션 매개변수 3차원 얼굴 모델의 주요 특징점(제어점)의 이동은 획득된 애니메이션 매개변수를 적용하여 수행하며, 정점 주위의 부가적 정점의 위치는 RBF(Radial Basis Function) 보간법을 통해 변형한다. 실험결과 본 논문에서 제안된 비전기반 애니메이션 시스템은 비디오 영상으로부터 강건한 얼굴 포즈 추정과 얼굴의 표정변화를 잘 반영하여 현실감 있는 애니메이션을 생성함을 입증할 수 있었다. This paper presents vision-based 3D facial expression animation technique and system which provide the robust 3D head pose estimation and real-time facial expression control. Many researches of 3D face animation have been done for the facial expression control itself rather than focusing on 3D head motion tracking. However, the head motion tracking is one of critical issues to be solved for developing realistic facial animation. In this research, we developed an integrated animation system that includes 3D head motion tracking and facial expression control at the same time. The proposed system consists of three major phases: face detection, 3D head motion tracking, and facial expression control. For face detection, with the non-parametric HT skin color model and template matching, we can detect the facial region efficiently from video frame. For 3D head motion tracking, we exploit the cylindrical head model that is projected to the initial head motion template. Given an initial reference template of the face image and the corresponding head motion, the cylindrical head model is created and the foil head motion is traced based on the optical flow method. For the facial expression cloning we utilize the feature-based method, The major facial feature points are detected by the geometry of information of the face with template matching and traced by optical flow. Since the locations of varying feature points are composed of head motion and facial expression information, the animation parameters which describe the variation of the facial features are acquired from geometrically transformed frontal head pose image. Finally, the facial expression cloning is done by two fitting process. The control points of the 3D model are varied applying the animation parameters to the face model, and the non-feature points around the control points are changed by use of Radial Basis Function(RBF). From the experiment, we can prove that the developed vision-based animation system can create realistic facial animation with robust head pose estimation and facial variation from input video image.

Radial Basis Function 을 이용한 특징점 기반 3차원 얼굴 모델의 변형

권오륜 ( Oh-ryun Kwon ),민경필 ( Kyongpil Min ),전준철 ( Jun-chul Chun ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.1

아바타를 이용한 얼굴 애니메이션은 가상 현실이나 엔터테인먼트와 같은 분야에서 많이 적용된다. 얼굴 애니메이션을 생성하는 방법에는 크게 3 차원 모델을 직접 변형시키는 기하학적인 변형 방법과 2 차원 이미지의 워핑이나 모핑방법을 이용한 이미지 변형 방법이 있다. 기하학적인 변형 방법 중 3 차원 모델을 변형시키기 위한 방법으로 RBF(Radial Basis Function)을 이용하는 방법이 있다. RBF 함수를 이용하여 모델의 부드러운 변형을 만들 수 있다. 이 방법은 모델의 임의의 한 점을 이동하게 되면 영향을 받는 정점들을 좀 더 자연스럽게 이동시킴으로써 자연스러운 애니메이션을 생성할 수 있다. 본 연구에서는 RBF 를 이용하여 3 차원 얼굴 메쉬 모델의 기하학적 변형을 통해 모델의 얼굴표정을 생성하는 방법에 대해 제안하고자 한다. 얼굴 모델 변형을 위해 얼굴의 특징인 눈, 입, 턱부분에 특징점을 정하고 각 특징점에 따라 영향을 받는 영역을 정하기 위해 얼굴 모델을 지역적으로 클러스터링한다. 각 특징점에 따라 영향을 받는 영역에 대해 클러스터링을 적용하고 RBF 를 이용하여 자연스러운 얼굴 표정을 생성하는 방법을 제안한다.

3D 모델과 Optical flow 를 이용한 실시간 얼굴 모션 추정

권오륜(Oh Ryun Kwon),전준철(Jun Chul Chun) 한국HCI학회 2006 한국HCI학회 학술대회 Vol.2006 No.2

Analysis of Transient Frequency Characteristics during the Dropout of Conventional Generator in a Power System with High Penetration Ratio of Variable Renewable Energy Source

Oh-Ryun Kwon(권오륜),Soo-Bin Kim(김수빈),Hyun-Dong Jin(진현동),Seung-Ho Song(송승호) 한국신재생에너지학회 2018 한국신재생에너지학회 학술대회논문집 Vol.2018 No.11

언론이 담아낸 스포츠맨십의 양상

권오륜(Oh Ryun Kwon),황미숙(Mi Sook Hwang) 한국체육철학회 2006 움직임의철학 : 한국체육철학회지 Vol.14 No.4

체육학의 동양철학적 접근의 과제

권오륜(Oh Ryun Kwon),황미숙(Mi Sook Hwang),남중웅(Joongw Woong Nam) 한국체육철학회 2002 움직임의철학 : 한국체육철학회지 Vol.10 No.1

The new paradigm of Eastern philosophical thoughts is presented in order to find out the harmonious relation between two kinds of thoughts - Eastern and Western thoughts. This effort might be helpful for setting up an ideal goal of physical education which prepares the future society of the 21st century. Also it could be a new vision of physical education for the 21st century. There are clear differences in the views of the world and the human being between Eastern and Western philosophies. The Western philosophy is based on the Descartes` dualism and the Newton`s materialism. On the other hand the Eastern philosophy is founded on the monism and the holistic thinking. This researcher names Ki-physical education which is based on Ki-theory from the view of Eastern philosophy. Ki-physical education could study the view of mind and body, the abdomen breath as the movement of body, the practice and effect of Ki, and the graft of Ki-theory to sports. Even if the materialism of Western philosophy has been studied quantitatively, Ki-physical education has to research in quality. The Eastern philosophy as the new paradigm of physical education makes a demand for lots of efforts and constant research of young researchers. And the researchers must have the ability to understand Chinese sentences. Also in order to active study of physical education on the basis of Eastern philosophy, it`s necessary to translate various special books and increase the number of researchers.