프레임 보간 기법을 활용한 장노출 사진 시뮬레이션 파이프라인

정경화,이수현,유광석,이무재 대한전자공학회 2023 전자공학회논문지 Vol.60 No.7

In this paper, we propose a pipeline that combines multiple photos taken consecutively into long exposure images using frame interpolation. In general, in order to take long exposure photos, an ND (Neutral Density) filter attached to the camera lens to adjust the amount of light is required to increase the exposure time. In addition, since elements such as ISO, exposure time, and aperture must be adjusted according to the shooting environment and subject, the skill of the photographer is required. Without these limitations, using a pipeline that uses frame interpolation and fusion with Radiant Amplification, you can achieve similar results to real long-exposure photography even with regular sequentially captured images. 본 논문에서는 연속적으로 촬영한 여러 장의 사진에 프레임 보간 기법(Frame Interpolation)을 활용해 장노출 사진으로 합성하는 파이프라인을 제안한다. 일반적으로 장노출 사진을 촬영하기 위해서는 빛의 노출시간을 늘리기 위해 카메라 렌즈에 부착해 광량을 조절하는 ND(Neutral Density) 필터가 필요하고 ISO, 노출시간, 조리개 등의 요소를 환경과 피사체에 맞게 조절해야 하기 때문에 촬영자의 숙련도가 요구된다. 이런 제약 없이 일반적인 카메라로 연속 촬영된 평범한 이미지에 프레임 보간 기술과 Radiant Amplification을 포함한 융합을 사용한 파이프라인을 사용한다면 실제 장노출 사진과 유사한 결과를 얻을 수 있다.

Environment Policy and Renewable Energy R&D Incentives in Cournot Competition

정경화,심기은 한국경제연구학회 2015 Korea and the World Economy Vol.16 No.2

This paper studies how the policy choice between a command-and-control (CAC) system and an emission trading scheme (ETS) affects a firm’s renewable energy R&D incentives in an oligopoly market when a renewable portfolio system (RPS) is introduced in conjunction with environmental regulation. An ETS with free allocation leads to greater renewable energy R&D incentives compared with a CAC or an ETS with auctioning. The difference in R&D incentives between a CAC and an ETS with auctioning is uncertain because the level of incentives depends on market conditions such as demand elasticity, abatement cost, and marginal R&D cost. This result contrasts with the results of previous studies in which a CAC or an ETS with auctioning leads to greater abatement R&D incentives than an ETS with free allocation.

안중근의 동양평화론과 시민교육

정경화 한국교육철학학회 2019 교육철학연구 Vol.41 No.4

Although Ahn, Jung-geun is remembered usually by us as a patriot and an anti-Japanese activist, we also have to remember that he is a pacifist who eagerly desires peace of the East and peace of the world. To know of his dual identity as a patriot and a pacifist is important for our full understanding of the educational meaning of his life and thought. The pacifist Ahn insisted on the theory of natural human rights and the development of moral civilization, and he recognized that building a modern nation where citizens become the true sovereign of the state is the foundation of creating a peaceful world. Ahn believes that citizens want peace, and through their international solidarity, peace in the East and peace in the world can be achieved. The duality of Ahn as a patriotist and a global citizen can be used as a principle of modern civic education. Patriotism requires international solidarity of citizens at its practical level, and cosmopolitanism likewise requires patriotic practice. Thus, patriotic citizenship education and world citizenship education are inseparable. 안중근은 우리에게 주로 애국지사, 항일독립투사로 기억되고 있지만 그는 동양의 평화와 세계의 평화를 그 누구보다 간절히 원했던 평화주의자이기도 하다. 평화주의자 안중근은 천부인권론과 도덕적 문명발달론을 주장하였고, 근대적 의미의 시민사회 성장을 통한 근대국가 건설이 평화로운 세상을 만드는데 초석이 됨을 간파하고 있었다. 안중근은 본래 시민들이 평화를 원하고 있으며, 시민들의 국제적 연대를 통해서 동양의 평화를 구축하고 나아가 세계의 평화를 이룰 수 있다고 본다. 우리가 안중근이 애국지사인 동시에 평화주의자라는 사실을 아는 것은 그의 존재와 삶이 가지는 교육적 의미를 이해하는데 중요하다. 안중근이 애국주의자와 세계시민주의자로서 가지는 이중성은 현대 시민교육의 원리로 삼을 수 있다. 애국주의는 그 실천적 차원에서 시민의 국제적 연대를 필요로 하고, 세계시민주의도 마찬가지로 애국적 실천을 필요로 한다는 점에서 애국주의 시민교육과 세계시민주의 시민교육은 불가분한 것이다.

The Influence of Luxury Brands’ Cross-Border Acquisition on Consumer Brand Perception

정경화,윤초롱,이유리 sage 2014 Clothing and Textiles Research Journal Vol.320 No.40

Assessment of Change in Palatal Sensation in Obstructive Sleep Apnea Patients by Using Two-Point Palatal Discrimination

정경화,양영수,최혜랑,조재훈,김기태,김진국 대한이비인후과학회 2016 Clinical and Experimental Otorhinolaryngology Vol.9 No.3

Objectives. Patients with obstructive sleep apnea syndrome (OSAS) have impaired responses to inspiratory resistive loading during sleep. This may be due, in part, to a change in the upper airway sensation. Therefore, we hypothesized that patients with OSAS have diminished upper airway sensation due to snoring. Methods. A total of 53 participants were selected based on clinical evaluation and polysomnography. Two-point discrimination was measured with modified calipers in the tongue and soft palate. Results. A total of 10 participants were included in the control group, 12 participants in the simple snoring group, and 27 participants in the OSAS group. There were 12 patients in the impaired sensation group of the OSAS group. On comparing polysomnography, patients with impairment of their palatal sensory input in two-point discrimination (TPD) had a more protracted duration of the longest snoring episode than those with simple snoring and normal sensation. Patients with decreased sensory input in TPD had longer average duration of snoring episodes and relative snoring time than those with simple snoring and normal sensory input in cold uvular TPD. Comparison of the cold uvular TPD for normal sensation and impaired sensation in patients with OSAS after treatment showed a different trend. Conclusion. Impaired sensation of the soft palate was correlated with the longest snoring episode duration, average snoring episode duration, and relative snoring time. It is helpful in detecting the early stage of neural degradation in OSAS patients by assessing snoring components of polysomnography and TPD in the soft palate.

[수강생 인터뷰] “방송기자의 역동성은 매우 매력적”

정경화 (사)방송기자연합회 2010 방송기자 Vol.1 No.-

계획된 간호 중재가 미숙아 어머니의 스트레스, 모성 역할 긴장과 역할 수행에 미치는 영향

정경화,Joung Kyoun -Hwa 한국아동간호학회 1999 Child Health Nursing Research Vol.5 No.1

The birth of a premature infant is distressing for its parents. The parents of a premature infant experience stress according to the infant's physical appearance and behavior, the environment of the neonatal intensive care unit (NICU) , and the alteration in the parental role. Especially, a mother of a premature infant feels distressed even after the discharge of the infant : therefore, she has difficulties in maternal role performance. The main purpose of this study is to identify the effects of the planned infant care information program in order to lower the stress level for mothers of premature infants caused by the birth and hospitalization in NICU of premature infants, to reduce the maternal role strain, and to promote the maternal role performance after the infants' discharge. This study employed two methods of research at the same time : quasi -experimental non-equivalent pre and post test to compare : non-equivalent post test to compare. The total number of subjects was 19 who were assigned to the research program : 12 mothers of premature infants at the NICU at the Ch university hospital and 7 at the NICU at the Y general hospital located in Chounju city. The data were collected for 79 days from August 18 to November 5, 1998. The questionnaire method was applied for the data collection, and the measures used in this study were Parental Stressor Scale : NICU(Miles, 1993), the Maternal Role Strain Measures ( Hobbs, 1968 ; Steffensmeier, 1982) , and Self Confidence Scale (Pharis, 1978). Research procedure is as follows : after preliminary examination, the experimental subjects, the mothers of premature infants at the Nl CU at Ch university hospital were provided with slide films and information developed by the researcher based on existing documents and data. It took two 60-minute sessions a week for two weeks, and the mothers' stress level was measured using the same instrument twice one week and two week after the infants' hospitalization. The stress level of the contrast subjects, the mothers at Y general hospital was measured during the same period. The experimental subjects were provided with booklets on matters that require attention after the infants' discharge and on developmental project, and they were educated to play the maternal role in person for 2-3 hours a week : breast-feeding, burping a baby, and changing diapers. One week after the infants' discharge, the maternal role strain and the maternal role performance were examined in two groups of the subjects. The analysis of collected data was done using descriptive statistics including real numbers, percentages, averages, and standard deviations. Mann-Whitney test ; x² test ; Repeated Measures Analysis of Variance ; ANCOVA Spearman's rho correlation coefficients. The results on this study were as follows. (1) The examination of the same quality showed that there were no differences in the general and obstetrical characters between the two groups. However, in terms of the characters of premature infants. just right after their birth, the infants at the contrast group weighed more than those at the experimental group(U=16.5, p=.02), and the former was in mother's womb longer than the latter(U=15.5, p=.02). (2) The stress level of the mothers provided with the plannned nursing intervention program became lower as time passed compared to the others'(F=16.61, p=.00) Even when the influence of weight at birth and the length of gestation was removed among the premature infants' characters, the mothers' stress levels made a statistical difference 2 weeks after the infants' hospitalization depending on treatment (F=8.00, p=.01) (3) The maternal role strain of the mothers provided with the planned nursing intervention program was lower than the others'(U=2.0, p=.00). Even when the influence of weight at birth and the length of gestation was removed among the premature infants' characters, the maternal role strain levels made a statistical difference 2 weeks after t

접수 및 진료 대기시간 만족도를 높이기 위한 개선활동 : 무인 수납기, 환자 대기모니터 중심으로

정경화,박성운,심재헌,문민자 한국의료QA학회 2009 가을학술대회 Vol.2009 No.3

[동인소개] 한 폭의 진경이 될 때까지

정경화 고요아침 2010 시조시학 Vol.- No.-

[자전적 시론] 길 밖에서 길 찾기

정경화 고요아침 2006 시조시학 Vol.- No.-