http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이산 웨이브렛 변환을 이용한 고각성 부정 감성의 GSR 신호 분석
임현준,유선국,장원석,Lim, Hyun-Jun,Yoo, Sun-Kook,Jang, Won Seuk 한국감성과학회 2017 감성과학 Vol.20 No.3
감성은 의사 결정, 지각 등에 직접적으로 영향을 미치며 인간의 삶에서 중요한 역할을 한다. 본 논문에서는 고각성 부정 감성의 편리하고 정확한 인식에 있어서, 생체신호를 이용한 분석 알고리즘을 설계하고자 한다. 이를 위해 본 연구에서는 보통 / 공포 감성 유발 영상을 이용하여 두 감성을 유도한 후, 생체신호 중 간단한 피부전도도 신호를 측정하였다. 측정된 피부전도도에 대해 Tonic 성분과 Phasic 성분으로 분해하고 감성 자극과 관련된 Phasic 성분을 더 상세하게 SCVSR, SCSR로 분해하여 각 성분의 주요한 특징들을 추출함으로써, 정확한 분석을 하기 위해 기존의 사용된 방법이 아닌 우수한 시간-주파수 지역화 특성을 가진 이산 웨이브렛 변환을 사용하였다. 추출된 특징들은 Phasic 성분의 최댓값, Phasic 성분의 진폭, SCVSR의 영교차율, SCSR의 영교차율이다. 분석 결과, 4가지 특징들 모두 고각성 부정 감성의 경우가 저각성 보통 감성의 경우보다 더 높은 값을 나타내고, 기존의 분석 방법보다 통계적으로 두 감정 사이의 더 유의미한 차이를 확인할 수 있었다. 이에 따라 본 연구의 결과는 피부전도도가 고각성 부정 감성 측정에 대해 유용한 지표라는 것을 확인하였으며, 향후 피부전도도를 이용한 실시간 부정 감성 평가 시스템 개발에 기여할 수 있을 것을 나타낸다. Emotion has a direct influence such as decision-making, perception, etc. and plays an important role in human life. For the convenient and accurate recognition of high-arousal negative emotion, the purpose of this paper is to design an algorithm for analysis using the bio-signal. In this study, after two emotional induction using the 'normal' / 'fear' emotion types of videos, we measured the Galvanic Skin Response (GSR) signal which is the simple of bio-signals. Then, by decomposing Tonic component and Phasic component in the measured GSR and decomposing Skin Conductance Very Slow Response (SCVSR) and Skin Conductance Slow Response (SCSR) in the Phasic component associated with emotional stimulation, extracting the major features of the components for an accurate analysis, we used a discrete wavelet transform with excellent time-frequency localization characteristics, not the method used previously. The extracted features are maximum value of Phasic component, amplitude of Phasic component, zero crossing rate of SCVSR and zero crossing rate of SCSR for distinguishing high-arousal negative emotion. As results, the case of high-arousal negative emotion exhibited higher value than the case of low-arousal normal emotion in all 4 of the features, and the more significant difference between the two emotion was found statistically than the previous analysis method. Accordingly, the results of this study indicate that the GSR may be a useful indicator for a high-arousal negative emotion measurement and contribute to the development of the emotional real-time rating system using the GSR.
임현준(Hyun-Jun Lim),채연식(Yeon-Sik Chae),정경권(Kyung-Kwon Jung),김미라(Mi-Ra Kim),이진구(Jin-Koo Rhee) 대한전자공학회 2010 電子工學會論文誌-TC (Telecommunications) Vol.47 No.2
반사판을 이용하여 은닉물체 탐지에 적용이 가능한 밀리미터파 수동 이미징 시스템을 제작 하였다. 94㎓ 중심주파수 대역에서 밀리미터파 센서와 밀리미터파 신호를 집속하기 위한 렌즈 및 반사판을 구동하기 위한 구동장치를 설계 제작하였다. 밀리미터파 센서로부터 출력된 DC 신호는 저역통과 필터를 거쳐 DC 증폭 후에 ADC/DAQ를 이용하여 디지털 신호로 변환된다. 컴퓨터에서는 디지털 신호의 영상처리를 통해 18 64 화소의 해상도로 밀리미터파 수동 이미지를 획득한다. 시험 결과 제작된 시스템을 이용하여 사람과 은닉물체의 감지 영상을 얻을 수 있었다. We have developed a millimeter-wave passive imaging system with reflector for detection of concealed objects. We have designed a millimeter-wave sensor, control device for reflector control, and a lens for focusing of millimeter-wave signal at center frequency of 94㎓. DC signal from millimeter-wave sensor output is filtered by low pass filter and amplified by video amplifier, and then converted into digital signal by using ADC/DAQ. This signal is image processed by computer, and it is possible to obtain millimeter-wave passive image with resolution of 18 64 pixel using the fabricated system. It is shown that we can obtain the image of men and concealed object with the system.
혼 배열 안테나를 이용한 밀리미터파 수동 이미징 센서 연구
임현준(Hyun-Jun Lim),채연식(Yeon-Sik Chae),김미라(Mi-Ra Kim),이진구(Jin-Koo Rhee) 대한전자공학회 2010 電子工學會論文誌-TC (Telecommunications) Vol.47 No.2
본 연구에서는 다수의 혼 안테나 배열을 가지는 밀리미터파 수동 이미징 센서를 설계 하였다. 6개의 혼 안테나를 일체형 구조 형태로한 배열 안테나를 제안하였고, 이를 공간상에 효율적으로 배치함으로써, WR-10 구조의 LNA와의 결합이 용이하도록하였다. 안테나는 94㎓의 중심주파수에서 17.5㏈i의 최대 이득을 가지고, W 주파수 대역에서 -25㏈ 이하의 반사계수 값을 가지도록 설계 하였고, 고해상도의 안테나 배열을 위해 안테나 개구면을 6㎜ 9㎜의 작은 크기로 설계하였다. LNA는 양호한 성능의 수신감도를 얻기 위해 55㏈ 이상의 총 이득과, 5㏈ 이내의 잡음지수를 가지도록 설계 하였다. 밀리미터 신호를 직류 신호로 변환하기 위해 상용 제로 바이어스 쇼키 다이오드를 사용한 검파기를 제작하였고, 검파기의 성능을 측정한 결과 500㎷/㎽ 이상의 양호한 수신감도를 얻었다) We have designed a millimeter-wave passive imaging sensor with multi-horn antenna array. Six horn array antenna is suggested that it is integrated into one housing, and this antenna is effectively configurated in space to assemble with LNA of WR-10 structure. Antenna is designed to have the peak gain of 17.5㏈i at the center frequency of 94㎓, and the return loss of less than -25㏈ in W-band, and the small aperture size of 6㎜ 9㎜ for antenna configuration with high resolution. LNA is designed to have total gain of more than 55㏈ and noise figure of less than 5㏈ for good sensitivity. We made a detector for DC output translation of millimeter-wave signal with zero bias Schottky diode. It is shown that good sensitivity of more than 500㎷/㎽.
임현준 ( Hyun Joon Lim ) 단국대학교 한국문화기술연구소 2011 한국문화기술 Vol.12 No.-
Shin Dong-yoep’s poet 「Geumgang」 is figuration of the people’s aspiration represented by Donghak Pesant Revolution, The 1919[Samil] Independence Movement, and April 19 Revolution. Specially 「Geumgang」 is the most expressive work of’showing poet s world view. Its narration describes the people as the subject. As postulate the people for the lord of history, the poet criticizes the inconsistency of realities which are expelling the people from the scene of history. That is to say, it is the dissolution of historical consciousness that is deteriorated into domination-oppression system, at the same time, it is the connection with the people’s will to restore their status as the lord of history. Whether it is great or not, history is placed in close relationships among the present, the past, and the future. Therefore the history of domination-oppression system showed in 「Geumgang」 is the history of human society. And the meaning of the circle of history’s ordeal, it is the symbol of the people’s constant hope of making complete world. These factors sticks out a mile in the symbol of mother archetype of 「Geumgang」 and its structure. symbols of 「Geumgang」 are represented by the eternal heaven turn to and birth and death in Mother earth as home. The poem substitute great common history for those symbols through historical events, and build structure with regeneration and circulation. It draws resistance and conquest against domination-oppression system in realities by the implicit symbol and the structure. In other word, it comes into actions such as uprising and struggle through the sense of revolution. The sense of revolution aims utopia, all mankind will be treated equally and will be free, the world of mother archetype. Modern civilization guarantees abundant life with material affluence and advanced scientific technique, nonetheless, people feel anxiety and unhappiness because there are so many values which are regarded higher than humanism all over. Realities are very inconsistent, and it is necessary to get over it through the suffering that is called sense of revolution. Ultimately sense of revolution is the effort toward root of motherhood(maternal instinct). Motherhood controls birth and death, which means it includes creation and destruction altogether. Its nature assumes mythy tendency. The desire to return to birthplace or motherhood is in the same vein as the structure of maternal mythology archetype, such as humanism, egalitarianism, peace and harmony. Anxiety, in modern civilization, is based on selfish desire to possess more by competitions in capital flows. Capital as negative aspect of civilization have newly made the domination-oppression system. The system divides the fundamental world and fragmentize it beyond the borders and nations. The poet’s question and criticism are, ultimately, in his poetic works, as follows, what is the world human society should make and which way is the action has come into realities. At this point, discussion of the motherhood discourse as undertone of 「Geumgang」 becomes very important. It is reflection which is on about contradictory phenomenon, anxiety. Furthermore, it would be entirely new evaluation in contrast with underestimate through narrow nationalism hitherto.