• Journal of Information Processing Systems
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• 제12권3호
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• pp.502-510
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• 2016

Considering video copy transform diversity, a multi-feature video copy detection algorithm based on a Speeded-Up Robust Features (SURF) local descriptor is proposed in this paper. Video copy coarse detection is done by an ordinal measure (OM) algorithm after the video is preprocessed. If the matching result is greater than the specified threshold, the video copy fine detection is done based on a SURF descriptor and a box filter is used to extract integral video. In order to improve video copy detection speed, the Hessian matrix trace of the SURF descriptor is used to pre-match, and dimension reduction is done to the traditional SURF feature vector for video matching. Our experimental results indicate that video copy detection precision and recall are greatly improved compared with traditional algorithms, and that our proposed multiple features algorithm has good robustness and discrimination accuracy, as it demonstrated that video detection speed was also improved.

• 한국컴퓨터정보학회논문지
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• 제22권7호
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• pp.83-91
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• 2017

In this paper, we propose a thorough solution for adjusting virtual sound field with different kinds of devices and software in preliminary procedure and late stage of music processing. The basic process of music production includes composing, arranging and recording at pre-production stage as well as sound mixing and mastering at post-production stage. At the initial stage of music creation, it should be checked whether the design of virtual sound field, the choice of the tone and the instrument used in the arrangement match the virtual sound field required for the final work. In later recording, mixing and mastering, elaborate adjustments should be done to the virtual sound field. This study also analyzed how to apply the parameter of the effectors to the design and adjustment of the virtual sound field, making it the source of our creation.

• International Journal of Advanced Culture Technology
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• 제9권3호
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• pp.232-237
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• 2021

Pre-Corona cultural content was largely formed face to face. For example, the service was great while visiting tourist attractions, visiting performances to see K-Pop, or visiting lectures to learn K-Beauty. However, after the coronation, the virtual world-centered Metaverse began to take the spotlight as non-face-to-face services changed. IT and cultural contents have been combined and developed into various digital services. In that sense, Metaverse, which breaks the boundaries between real-world space and virtual space, has the potential to escape from physical time and space constraints. However, Korea still lacks a Metaverse platform for cultural content. In particular, it is necessary to match each other's necessary services by providing Metaverse -oriented cultural contents that users want, including experienced cultural contents such as K-pop and K-beauty, away from cultural contents that are developed around history museums. Therefore, in this paper, we would like to propose a Metaverse-based cultural content matching platform where users can experience cultural content directly or indirectly.

• 한국과학교육학회지
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• 제41권1호
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• pp.19-32
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• 2021

본 연구에서는 빛의 반사 현상에 대한 초등 예비교사의 시각적 모델링 과정을 Halloun (2004)이 제안한 모델링 사고의 세 측면, 정합성(coherence), 대응성(correspondence), 통약성(commensurability)의 관점에서 분석하였다. 초등 예비교사 20명이 참여하였으며 무작위로 2명씩 짝을 이루어 빛의 반사 현상을 관찰하고 이에 대한 시각적 모델을 처음에는 개인적으로 그리고 이후에는 협동적으로 구성하도록 하였다. 개인적 모델과 협동적 모델을 비교한 결과 특별한 교육적 처치가 없었음에도 불구하고 일부 모둠에서 대응성과 통약성 수준이 다소 높아졌다. 또한, 이들의 추론 과정에서 세 가지의 주요한 특징을 발견할 수 있었다. 첫째, 반사의 법칙을 적용하는 통약성 수준은 상황에 따라 유동적으로 계속 변했고 구두 설명과 그림 설명이 일치하지 않는 경우가 많았다. 둘째, 시각적 모델링 과정에서 통약성, 정합성보다 대응성을 우선으로 고려하는 경우가 많았다. 셋째, 대응성과 통약성이 서로 갈등하는 상황에서 참여자들은 보조 가설에 대한 검토 및 수정을 통해 이 갈등을 해결하고 추론을 발전시켜 나갔다. 이러한 연구 결과가 모델링 활동을 효과적으로 지도하는데 주는 몇 가지 시사점을 논의하였다.

• 한국의상디자인학회지
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• 제18권3호
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• pp.183-196
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• 2016

The purpose of this research is to find out the characteristics of sexuality expressed in the contemporary modern fashion jacket, especially designer Thom Browne. Thom Browne is a very successful fashion brand that has focused on design of extraordinary theme. In the research methodology, the analysis was carried out over a total of 862 work pieces in the collection of S/S, F/W, RESORT, PRE-FALL from 2010 to 2016. The characteristics of the contemporary expressions of sexualities can be subdivided into four separate categories. First, The demolition is inflated retail, exaggerated shoulder silhouettes, such as short sleeve jacket is mainly used in the form of a women's match with each other and expressed by different materials applied to men. Female jackets are designed for the silhouette to highlight the strong masculine image to highlight additional detail on the chest or vice versa, to express women's jacket to distort the female. Secondly, Sensuality is designed the body of a male was represented by a design that gives a greater masculinity was expressed that the interpretation of the male gender in detail jacket sleeves and wrap the exposed areas of the important men of fashion. Women's jacket by using a see-through material, mainly sensory Castle outward to reveal the concealed body of the female form a natural curve shows the feminine sensuality. Lastly, Incongruity is inadequate representation by sex of clothing to match the jacket and skirt in women's wear it is also unsuitable for revealing gender as male by applying soot forms. The study attempts to find the meaning in that this presents the direction of the creative development of the modern fashion design based on the aesthetic characteristics of Thom Browne fashion appearing in the modern fashion.

• 사회복지연구
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• 제37호
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• pp.171-197
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• 2008

본 연구는 국민기초생활보장법 하의 조건부 수급자가 자활직업훈련 프로그램의 참여로 인해 임금이 향상되었는지에 관해 실증적으로 분석 하였다. 분석 자료로는 한국노동연구원에서의 자활사업 참여자를 대상으로 한 '자활대상자 직업훈련 실태'조사와 한국보건사회연구원에서 실시하는 2004년 '자활패널'조사 자료를 결합하여 '자활직업훈련 실태'조사의 응답자를 실험그룹으로'자활패널'을 비교그룹으로 구성하여 분석하였으며, 기존 연구의 통계적 취약점을 극복하기 위해 Propensity Score Matching 방법을 이용하여 자활직업훈련의 임금효과를 분석하였다. 분석 결과 자활직업훈련 참가자들이 그와 비슷한 특성을 가진 비교그룹에 비해서 약 12만원 정도 소득이 낮음을 확인함으로써, 이러한 부정적인 효과가 나타난 원인과 의미에 대해서 논의하였다.

• 대한전자공학회논문지SP
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• 제38권2호
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• pp.117-128
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• 2001

유사도 측정자 (similarity measure)에 따라 문의자 (query)의 최적 정합자 (the best match)를 찾는 최적 검색 (optimal retrieval)을 위해서는 데이터베이스의 모든 영상들에 대해 전역 탐색 (exhaustive search)을 수행해야 한다. 그러나, 일반적인 전역 탐색은 방대한 계산량을 요구한다. 그 계산량을 줄이기 위해, 본 논문은 영상 데이터베이스의 클러스터링 (clustering)에 기반한 고속 다 해상도 전역 탐색 기법을 제안한다. 먼저 데이터베이스 내의 모든 영상들을 일정 수의 클러스터 (cluster)들로 나눈다. 각 클러스터는 유사한 특징 (feature)을 갖는 영상들로 구성된다. 그리고, 각 클러스터와 문의자 간 거리 (distance)의 하계(lower bound)를 구하고, 가능성이 전혀 없다고 판단될 경우 그 클러스터를 제거한다. 가능성이 있다고 판단된 클러스터들에 속한 후보 영상들 중에서 최적 정합자를 찾는다. 또한, 불필요한 특징 정합 연산을 줄이기 위해 다 해상도 데이터 구조에 기반한 거리 부등식 성질 (distance inequality property)을 유도하여, 탐색 과정에 적용한다. 제안한 기법은 고속 다 해상도 전역 탐색 기법으로서 단일 최적 정합자뿐만 아니라 다수의 상위 최적 정합자들도 정확하게 찾을 수 있다. 가장 보편적인 밝기 히스토그램 (luminance histogram)특징을 사용하여, 제안한 기법이 고속의 탐색 속도와 함께 최적 검색을 보장함을 증명해 보인다.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.71-82
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• 2020

Traffic accidents due to excessive speed frequently occur in places where traffic signal controllers are installed, places where sharp curves exist, or places where the traffic signal cycle does not match the current time. These traffic accidents cause economic loss due to the destruction of road facilities and structures, and cause a big problem of increasing the number of traffic accident deaths. When a traffic accident occurs, leaving a tire mark before or after a car crash, pre-collision speed of the car is calculated using the law of conservation of momentum or the skid mark formula. In the skip skid mark generated in ABS brake vehicles and the combshaped yaw mark generated by tire trace caused by lateral sliding, there is a difference of 30-40% in the reliability of the vehicle speed calculated by the smite mark. In this paper, we propose an algorithm that can improve the calculation reliability in vehicle speed by using skid marks in order to compensate for this problem. In addition, we present an intelligent speed calculation algorithm for traffic safety and a computer simulation in order to prevent traffic accidents by estimating the speed of a vehicle, using Skid marks, Yaw marks, and ABS brake characteristics and fuzzy rules.

• 한국주거학회논문집
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• 제25권6호
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• pp.123-132
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• 2014

Proportion of senior population living alone in South Korea has exceeded over 20.2% in 2012, and it is anticipated that the proportion would increase every year. Poverty rate of seniors living alone in Korea is also anticipated to increase the highest rate (76.6%) among OECD countries. In particular, seniors lacking family support are having greater difficulty and isolated due to high housing costs and housing instability. Therefore, they need a new housing alternatives for considering their economical difficulty and lacking family and social support. This study attempted to examine possibility to develop a new housing alternatives for Korean seniors, especially living urban area. For this purpose, this study identified the attitudes and preference for a new house alternatives(Senior Shared House) by Korean seniors living alone. The key findings of this study were as follows: 1) Eighty-five percent of seniors participated in this study responded the senior shared house was needed. 2) It should be developed by utilizing or renovating and renting out existing housing in city areas. 3) Pre-residence checklist can be developed to connect and match prospect residents. 4) Professional workforce (e.g. housing welfare professional) is absolutely necessary to perform the role of coordinator understanding the various characteristics of the seniors, and their living requirements. Recommendations and directions for future development of senior shared house were suggested.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2002년도 학술.기술논문발표회
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• pp.117-121
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• 2002

The purpose of this study was to Identification the Risk of construction method to protect and reduce the risk of construction period. For this study we are using the pre and during construction period Inspection list. The inspection list was used by construction company for check a flaw of Construction field. So we rearrange the individual item of inspection list to match the Risk factor. This inspection list usually has the difference of importance because this list is not made by Method which is not focused on Method. Therefore, To find the difference of these importance, We surveyed this matter by doing interview of specialist group. To find the application of field and the possibility of measurement of Risk status, We tested Risk occurring frequency and it's strength by checking the level of Risk. The results of this study were as follows; Each Method Check List made out through the rearrangement of Construction Inspection list which used in construction company. To solve and compensate the matter which happened by changing the each Method Check List to each General Inspection List, we added the each Method Check List by checking the importance of check list of each process. By doing this, The Check List for finding Risk level of Method was created by using the check list of each Method.