• Broadcasting and Media Magazine
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• v.20 no.3
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• pp.67-75
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• 2015

최근 범죄 예방을 위해 감시영상에서 폭력행위 검출에 대한 영상 분석 기술의 요구가 증가하고 있지만 지금까지의 폭력행위 검출 기술은 영화 또는 YouTube의 폭력장면 검출에 초점이 맞추어져 있다. 영화에서 촬영된 폭력 장면에는 주로 피를 흘리는 모습들이 자주 등장하기 때문에 색상 특징을 이용한 알고리즘을 많이 사용하였다. 하지만 실제 CCTV에서 촬영된 폭력행위는 피가 묻은 장면이 자주 발생하지 않기 때문에 영화 속 폭력장면 검출 알고리즘과는 차별성이 있어야 한다. 본 고에서는 국내외 폭력 행동 분석에 대한 기술 동향을 살펴보고 감시영상에서의 폭력 행동 검출하는 기술에 대해 살펴보고자 한다.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10a
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• pp.158-161
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• 2006

현대 영상산업에서 컴퓨터 그래픽스가 차지하는 비중은 크게 늘어나고 있다. 컴퓨터 그래픽스 기술의 발달로 인한 디지털 영화나 애니메이션이 점차 증가함에 따라 이러한 장면이 등장하는 가상캐릭터를 쉽게 접할 수 있다. 이런 가상 캐릭터를 이용하여 가상 해저 환경을 생성하기 위해서는 3D 모델링 및 애니메이션 기술을 개발해야 한다. 국내에서는 가상 해저 환경을 구축하여 실감 체험을 할 수 있는 VR 콘텐츠 기술 개발에 관련하여 군중 장면 처리 및 군중 행동 시스템의 설계 및 구현 등의 연구가 있었으나 군중 행동 모델러 기술 개발을 실용화 할 단계까지는 미치지 못하고 있다. 본 논문에서는 가상 해저환경에 존재하는 다수의 캐릭터의 움직임을 수작업으로 제공하는 것이 시간과 비용이 많이 소요되기 때문에 이를 자동화하여 보다 사실적이고 효율적인 가상 해저환경 속에서 군중 행동 장면을 생성하기 위해서 Fish 군중 행동 모델러 기술을 개발한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.1 no.1
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• pp.27-35
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• 2006

Crowd behaviors on cyber underwater environment are often produced in entertainment contents, such as films and games. It is easy for us to come in contact with the scenes appearing a lot of characters as digital films and animation works are increased gradually, owing to developing of computer graphics. Though the processing a scene of crowd and the behavior system of crowd, related to the processing techniques of crowd behavior in cyber space, have been implemented so far, the research for developing the natural crowd behavior simulator can not be still satisfying. In this paper, we designed a realistic and efficient Fish Schooling Behavior Simulator for the contents production of cyber underwater environment, which showed each type of fish behavior in cyber underwater smartly, and which generated the animating the behavior automatically, reducing the time and cost.

• Proceedings of the Korea Contents Association Conference
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• 2006.05a
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• pp.517-520
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• 2006

Crowd behavioral scenes in virtual underwater world are presented in many entertainments such as films and games. According to the increase of digital films and animations caused by the development of computer graphics, it is easy for us to meet with the cyber characters in those scenes. Characters which appear in computer animation put life into virtual world. The more characters we have in this virtual space, the deeper we are immersed in the space. There were many researches which processed the crowd scene and implemented the crowd behavior system in Korea. They were related to developing VR contents which were available to feel actually in the construction of the virtual environment. But they are far from reaching the step to put to practical use in developing the crowd behavior modeler. Therefore, we suggestion the fish schooling behavior modeler that provides interaction and action behavior in 3D object to present vividly and effectively in underwater world.

• Proceedings of the Korean Information Science Society Conference
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• 2006.06a
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• pp.124-126
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• 2006

가상 해저환경에 존재하는 군중 캐릭터 움직임을 수작업에 의존하는 기존의 애니메이션 제작 방법으로 제작할 경우 많은 시간과 비용이 필요하기 때문에 이를 자동화하여 보다 효율적이고 쉽게 제공하기 위해 장면의 사실성, 시스템의 성능 그리고 사용자와의 상호작용성을 적용하여 자연스러운 해저환경을 표현하고 군중 행동 장면을 생성을 위해서 자동화 기법이 개발되어야 한다. 본 논문에서는 군중 행동 시뮬레이터를 개발하여 해저환경속에서 사실적이고 효율적인 객체 표현을 위해 3D 객체에 군중행동양식을 부여하고, 상호작용이 가능하도록 다수의 Fish 군중행동 시뮬레이터를 설계한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.2 no.1
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• pp.25-33
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• 2007

Crowd behaviors on cyber underwater environment are often produced in entertainment contents, such as films and games. It is easy for us to come in contact with the scenes appearing a lot of characters as digital films and animation works are increased gradually, owing to developing of computer graphics. Though the processing a scene of crowd and the behavior system of crowd, related to the processing techniques of crowd behavior in cyber space, have been implemented so far, the research for developing the natural crowd behavior simulator can not be still satisfying. In this paper, we designed a realistic and efficient Fish Schooling Behavior Simulator for the contents production of cyber underwater environment, which showed each type of fish behavior in cyber underwater smartly, and which generated the animating the behavior automatically, reducing the time and cost.

• Journal of the Korea Convergence Society
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• v.5 no.4
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• pp.137-146
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• 2014

This study investigated the effects of response prompting through 3-steps compliance training to reaction time for child with Asperger's syndrome(AS). The participant was 3 and 8 year-old boy who was diagnostic As with non-compliant, delayed receptive language. Study design was multiple-baseline across behaviors. Target Behaviors were hands-up, following direction, and answering behavior. Dependent variable was latency reaction time during compliance training. This results mean that reaction time was increased raise hands-up behavior, compliance behavior and response ask questions. During intervention, the participant improve the rate on-task behavior as well as reduce off-task behaviors.

• Korean Journal of Cognitive Science
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• v.25 no.2
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• pp.135-157
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• 2014

The present study investigated whether 6- and 12-month-old infants could infer an agent's social preference on the basis of intentions. In Experiment 1, 12-month-old infants were first familiarized with two kinds of event: the helping and the hindering events. In the helping event, an agent (either a square or triangle) tried to help a circle climb up the hill and the movie stopped right before the circle reached the top of the hill. Thus, the outcome of the helping behavior was made to be ambiguous. Similarly, in the hindering movie, another agent tried to hinder the circle from reaching the top of the hill and the movie stopped right before the circle slipped down to the base of the hill making the final outcome of the hindering behavior unclear. During the test trial, infants were either presented with an event in which the circle approached the helper (approach-helper condition) or an event in which the circle approached the hinderer (approach-hinderer condition). The results indicated that both 6- and 12-month-olds looked longer at the approach-helper event than at the approach-hinderer event. Thus, by 6 months of age, infants are sensitive to agents' intentions when reasoning about agents' social preference. The current findings add to the emerging evidence on social evaluation and moral reasoning during infancy.

• Proceedings of the Korean Institute of Interior Design Conference
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• 2003.05a
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• pp.54-58
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• 2003

The purpose of this study is to clarify the daily living activities of the elderly with dementia and user oriented spatial needs of the staff in the common space of nursing home in Japan. Data was taken from six units of the 2 skilled facilities. The results revealed as follows; 4 types of elderly activities were founded, and physical environmental characteristics affected residents' space usage. And it was perceived like as living oriented space, social interaction space, facility space, staff oriented space. Conclusively it was suggested to plan dining space as semi-private space, day corner as semi-public space.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.183-186
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• 2002

MPEG-4는 기존의 MPEG-1, MPEG-2와 달리 멀티미디어를 위한 객체 기반의 부호화에 관한 표준이다. MPEG-4의 장면은 여러 개의 객체로 이루어져 있기 때문에 각 객체들을 시간, 공간적으로 표현하기 위한 장면 기술의 방법으로 BIFS(Binary Format for Scene description)를 규정하고 있다. MPEG-4 단말기에서는 부호화된 BIFS 정보를 복호화하여 각 객체들을 화면에 구성하게 되며, 객체의 특성, 행동들을 정의하거나 변경할 수 있고 새로운 객체들을 포함하는 등의 사용자 상호 작용에 따른 기능을 수행하게 된다. 그러나, 사용자 상호 작용에 따른 장면 재구성은 초기 장면을 구성할 때 기술된 장면 정보를 벗어날 수 없는 제약을 받게 된다. 따라서 본 논문에서는 BIFS 수정 정보 발생기 (BIFS modifier)를 가진 시스템 구조를 제안한다. 제안된 시스템 구조에서 BIFS 수정 발생기는 사용자의 상호 작용이 발생한 노드를 전달 받아 이에 상응하는 BIFS 정보를 기존의 BIFS 정보에서 찾은 후 이를 수정하여 BIFS 변경(BIFS update) 명령을 만들어내고 이에 따라 장면을 재구성하여 동적인 장면 구성을 가능하게 한다. 또한, 제안된 시스템 구조를 주요 응용 분야인 peer-to-peer(P2P)를 가정한 네트웍 기반의 게임에 직접 적용하여 보았다.