• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.741-744
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• 2008

In this paper, tone mapping method by local contrast and detail enhancement for High Dynamic Range (HDR) is proposed. By applying Piecewise Dynamic Range Histogram Adjustment (PDRHA) and Detail Enhancement Volume (DEV) with decomposed layers, tone mapping is performed effectively. The experimental results show that the proposed method preserves local contrast and overall impression with naturalness of original images.

• 대한수학회논문집
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• 제17권4호
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• pp.593-606
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• 2002

We prove local existence and global uniqueness in one dimensional nonlinear hyperbolic inverse problems. The basic key for showing the local existence of inverse solution is the principle of contracted mapping. As an application, we consider a hyperbolic inverse problem with damping term.

• 전자공학회논문지A
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• 제29A권2호
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• pp.88-99
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• 1992

This paper presents an efficient method of mapping Boolean equations to a set of library gates. The proposed system performs technology mapping by graph covering. To select optimal area cover, a new cost function and local area optimization are proposed. Experimental results show that the proposed algorithm produces effective mapping using given library.

• 한국정보통신학회논문지
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• 제23권3호
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• pp.299-304
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• 2019

현재 지역 주민들 간의 커뮤니티 활성화가 중요시 되고 있는 가운데 마을재생 사업, 마을 문화 활성화 사업 등이 주민 참여를 바탕으로 다양하게 추진되고 있다. 이처럼 지역사회의 주민이 주체가 되어 마을의 문제점을 제시하고 개선하는 것 중 하나가 커뮤니티 매핑이다. 이러한 커뮤니티 매핑은 주민들이 직접 마을 내 주요 이슈들을 지도화하는 과정을 통해 마을에 대한 주민들의 관심을 유도하고, 마을 계획과 정책을 결정하는데 있어 주민들의 자발적인 참여를 이끌어내는 것을 가능하게 한다. 본 연구에서는 커뮤니티 매핑을 활용해 부산 안창마을 지역 주민들의 쌍방향 소통을 위한 안전지도 애플리케이션을 개발하였다. 개발된 앱은 지역의 안전과 관련된 항목을 4가지로 분류해 지역의 현안과 문제점에 대한 정보를 지역주민이 직접 올리고 공유하는 역할을 한다. 또한 개발된 앱을 사용하여 작성된 마을의 안전 관련 현안과 문제점을 관련 행정 기관과 공유하고 개선할 수 있는 방안을 모색하는데 그 목적이 있다.

• 천문학회보
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• 제41권1호
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• pp.38.2-38.2
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• 2016

The mapping of dark matter clustering from real to redshift spaces introduces the anisotropic property to the measured density power spectrum in redshift space, known as the Redshift Space Distortion (hereafter RSD) effect. The mapping formula is intrinsically non-linear, which is complicated by the higher order polynomials due to the indefinite cross correlations between the density and velocity fields, and the Finger-of-God (hereafter FoG) effect due to the randomness of the peculiar velocity field. Furthermore, the rigorous test of this mapping formula is contaminated by the unknown non-linearity of the density and velocity fields, including their auto- and cross-correlations, for calculating which our theoretical calculation breaks down beyond some scales. Whilst the full higher order polynomials remains unknown, the other systematics can be controlled consistently within the same order truncation in the expansion of the mapping formula, as shown in this paper. The systematic due to the unknown non-linear density and velocity fields is removed by separately measuring all terms in the expansion using simulations. The uncertainty caused by the velocity randomness is controlled by splitting the FoG term into two pieces, 1) the non-local FoG term being independent of the separation vector between two different points, and 2) the local FoG term appearing as an indefinite polynomials which is expanded in the same order as all other perturbative polynomials. Using 100 realizations of simulations, we find that the best fitted non-local FoG function is Gaussian, with only one scale-independent free parameter, and that our new mapping formulation accurately reproduces the observed power spectrum in redshift space at the smallest scales by far, up to k ~ 0.3 h/Mpc, considering the resolution of future experiments.

• Asian Journal for Public Opinion Research
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• 제2권2호
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• pp.103-120
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• 2015

Since 1795, 106 districts in Japan have been selected as Important Historic Preservation Districts (Juuyo dentouteki kenzoubutsugun hozon chiku [Juudenken]). The system for protection of cultural properties enables the local government to name a "Preservation District" and allows for the development of a preservation plan based on local ordinances. Moreover, the well-organized, bottom-up networks, which are groups for community development activities on the basis of local participation, play an important role in raising awareness and conducting several preservation projects in their own towns. This study mainly focused on cultural resources management in the local community. The system, which possibly bridged the gap between the local authorities and the community, was revealed. Fifty non-profit groups and active citizens, who were engaged in an advanced stage of community participation in Juudenken, were selected to be interviewed. The results then were analyzed using STAT program. The significant associations were shown by mapping the associations related to the public process of community involvement. Each variable had its own significant meaning and contributed credible indirect association to community involvement. The network mapping indicated that balancing the local economy and technical conservation was important in generating community involvement, which provided a model on how local authorities and communities could articulate and maintain their own cultural resources.

• Journal of Platform Technology
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• 제6권3호
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• pp.3-9
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• 2018

This paper describes the design and trial development of a system that supports continuous hazard mapping by local residents in their daily life. We performed an interview survey to design our system in a model traditional town in Saga Prefecture, Japan. The results show that despite continued efforts, many practical problems remain and residents feel unsafe. Considering these results, we designed and developed a unique information and communication technology-based support system that contributes to community-based disaster prevention and reduction. The continuous resident participation and posting design are the core concept for our community-based approach. Our system continues to support making a hazard map by integrating the community-based hazard information. Local residents register information (disaster types, risk level, photographs, comments, positional information) about locations that could be dangerous in a disaster. In addition, our system enables information sharing through a Web server. We expect that this information sharing will allow local hazard information for each district to be used.

• International Journal of Advanced Culture Technology
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• 제6권3호
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• pp.193-200
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• 2018

This paper describes the design and trial development of a system that supports continuous hazard mapping by local residents in their daily life. We performed an interview survey to design our system in a model traditional town in Saga Prefecture, Japan. The results show that despite continued efforts, many practical problems remain and residents feel unsafe. Considering these results, we designed and developed a unique information and communication technology-based support system that contributes to community-based disaster prevention and reduction. The continuous resident participation and posting design are the core concept for our community-based approach. Our system continues to support making a hazard map by integrating the community-based hazard information. Local residents register information (disaster types, risk level, photographs, comments, positional information) about locations that could be dangerous in a disaster. In addition, our system enables information sharing through a Web server. We expect that this information sharing will allow local hazard information for each district to be used.

• 대한기계학회논문집
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• 제18권11호
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• pp.2902-2912
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• 1994

The ultrasonic array sensor system, consisting of one transmitter and fourreceivers instead of the traditional combination of a transmitter and a receiver is proposed in order to identify the location of objects. From the theoretical analysis and the experimental results, it is found that this new array sensor system could derive the information on the position of objects accurately, while the traditional sensor system could provide only the informatioin on the distance to objects. This sensor system is used to develop a sonar-based local mapping algorithm. The local map is used to find the existence of possible gates, through which the mobile robots can pass, and to select the suitable one in order for the robots to reach the goal safely in the presence of obstacles. The performance of the proposed local map algorithm is demonstrated experimentally in a small working area with several obstacles. It is found that the quality of the resulting local map is sufficient for the avoidance of collisions between the robots and obstacles and for the selection of the suitable gate leading to the goal. It is also shown that the global map of the working area could be obtained by integrating several local maps constructed from different locations and that it matches the actual layout of the working area well.

• 문화기술의 융합
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• 제8권4호
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• pp.37-44
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• 2022

본 연구는 지역사회사례관리협의체가 협의체 활동의 정체성과 활동방향을 설정하기 위하여 참여주체들이 기대하고 있는 협의체와 사례관리 서비스 성과를 어떻게 인식하고 있는지 컨셉트 맵핑을 통해 알아보고자 한 것이다. 총 12명의 참여기관의 실무자들이 지역사회사례관리협의체와 사례관리서비스 성과에 대해 브래인스토밍 방식으로 자유롭게 의견을 표현·공유하여, 총 42개의 서술문을 생산해 냈다. 유사성에 근거하여 서술문을 분류화하였고, 이를 42×42 유사성 매트릭스로 전환하여 다차원척도법을 실시하였다. 사례관리협의체의 협의체 조직과 사례관리 서비스의 성과를 논의하는 의사결정과정도 합리적으로 운영하기 위해 컨셉트 맵핑이라는 도구를 활용하였다. 컨셉트 맵핑을 통하여 참여자들이 의사결정과정에서 임파워링되었으며, 그들의 의견이 소외되지 않고, 모두 수용되어 합리적으로 처리되는 과정을 경험하였다. 의사결정과정에서 참여자들이 동등한 위치에서 논의되도록 기회를 마련하는 것이 중요하다고 할 수 있다. 이를 통해 사례관리협의체와 사례관리서비스의 성과에 대한 합의도출이 신속하게 이루어졌으며 이후 활동에 대한 방향성이 명확하게 설정되었다고 볼 수 있다.