• Journal of the Korea Computer Graphics Society
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• v.18 no.4
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• pp.1-8
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• 2012

We present improved deformation energy to enhance the visual quality of a shape deformation technique, where we preserve the local structure of an input planar shape. The deformation energy, in general, consists of several constraints such as Laplacian coordinate constraint to preserve the quality of deformed silhouette edges, mean value coordinates and edge length constraints to preserve the quality of deformed internal shape, and user-specified position constraints to control the shape deformation. When the positions of user-specified vertices change, shape deformation techniques compute the positions of the other vertices by means of nonlinear least squares optimization to minimize the deformation energy. When a user-specified vertex changes its position rapidly, it is frequently observed that the visual quality of the deformed shape decrease rapidly, which is mainly caused by unnecessary enlargement of the Laplacian vectors and unnecessary change of the edge directions along the boundary of the shape. In this paper, we propose improved deformation energy by prohibiting the Laplacian and edge length constraints from changing unnecessarily. The proposed deformation energy incorporated with well-known optimization technique can enhance the visual quality of shape deformation along the silhouette and within the interior of the planar shape while sacrificing only a little execution time.

• KIPS Transactions on Software and Data Engineering
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• v.2 no.5
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• pp.329-334
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• 2013

A positioning based service uses one's position information with GPS. This application also use the position based characters and change the smart phone to the vibration mode at the registered position. If the user register some places to be vibrated in the smart phone, the smart phone will be automatically changed to the vibration mode as the registered position is same with the position of GPS in the smart phone. If the smart phone is being leaving some distance from the position, the phone will be released from the vibration mode. Therefore, this paper propose aims for intelligent smart phone.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.38 no.5
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• pp.486-497
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• 2001

In this paper, we propose a new addressing mode, which can be used for programmable image processor to perform image-processing algorithms effectively. Conventional addressing modes are suitable for one-dimensional data processing such as voice, but the proposed addressing mode consider two-dimensional characteristics of image data. The proposed instruction for two-dimensional addressing requires two operands to specify a pixel and doesn't require any change of memory architecture. The proposed two-dimensional addressing mode for image processor has the following advantages. The proposed instruction combines several instructions to load a pixel data from an external memory to a register. Hence, the proposed instruction reduces required code size so that it satisfies high performance and low power requirements of image processor. In addition, it uses inherent two-dimensional characteristics of image data and offers user-friendly instruction to assembler programmer The proposed two-dimensional addressing mode is applicable to DSP, media processor, graphic device, and so on. In this paper, we propose a new concept of two-dimensional addressing mode and an efficient hardware implementation method of it.

• Bulletin of Food Technology
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• v.25 no.3
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• pp.276-281
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• 2012

우수 외식업지구 지정 및 지원 사업은 정부주도로 2012년부터 4년동안 전국 20개 주요 외식업 지구를 지정해서 매년 국비 20억원 씩 지원(5개소 4년간)하게 된다. 총 4년간 소요예산이 국비만도 400억에 달하며 각 지자체에서 지원되는 지방비를 합하면 800억원에 달하는 규모다. 식품산업이나 제조산업에 비하면 큰 예산이 아닐 수도 있으나 외식업에 대한 정부 차원에서 추진되는 첫 대규모 사업인 만큼 그 기대 또한 크다. 하지만 이러한 지구단위 외식업 육성의 문제점 또한 많다. 일례로 전남 지역 중 가장 많은 연간 650만명의 외지 관광객이 찾는 담양군의 경우 전체 600여개의 외식업소 중 죽녹원 인구 '남도음식 푸드필리지'에 속하는 외식업소는 20여개에 불과해 그 형평성에 대해 지역내 사업자들간에도 불만의 목소리가 터져 나올 수 밖에 없다. 또한 기존 유명관광지 주변에 위치한 외식업 지구에 지정되어 상대적으로 유리한 영업환경에 있었던 사업자들이 여타 불리한 조건하에서 노력하는 외식사업자들에 비해 경영의식이나, 친절도 및 부족한 부분에 대한 개선의지나 노력이 부족하다는 평은 많은 사람들의 입을 통해 회자되어 왔던 터다. 지자체별 그리고 전국 단위의 국제 경쟁력을 갖춘 유명외식업 지구를 육성한다는 취지는 나쁘다고 할 수 없지만, 가장 우선적으로 해당 외식업지구내 사업자들의 경영의식 개선 및 외식업 자체에 대해 공부하고 연구하는 풍토가 선결되어야 할 것이다. 또한 지역사회의 연계도 중요한 성공요인이다.

• Journal of the Korean Geographical Society
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• v.28 no.4
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• pp.312-320
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• 1993

Along with the fade out of the Cold War the world is undergoing a fundamental restructuring. The process is generally refered to regionalization and globalization. In this context, the Paper presents a geopolitical perspective on the future of Northeast Asia. To meet the global trend, it is expected that the countries in the area organize an economically cooperative unity, the concept of which the author calls the northeast Asian Rim (NEAR). With its huge potentials to become the largest economic area in the world and with its rather complicated historical and social background, the Rim is tentatively supposed to have a loose and soft organization, to be flexible in dealing with the intra-and interregional relations. The idea underlying the view is that the former area of confrontation between the land power and the sea power is, under the new world environment, going to recover its proper locational attributes and develop into a merging area, a new core. As a physical framework of the Rim a spatial structurc is assumed to consist of two-subrims and two development axes with four development centers.

• Transactions of the Korean Society of Mechanical Engineers
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• v.17 no.6
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• pp.1478-1485
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• 1993

A shape optimization problem is formulated to determine the optimal position of heating lines in a compression molding die. The objective of the problem is that the cavity surface would be maintained by a prescribed uniform temperature. A boundary integral equation for the sensitivity of the temperature in terms of hole position is derived using the method of shape design sensitivity analysis. The boundary element method is employed to analyze the temperature and sensitivity field of the die. The sensitivity calculation algorithm is incorporated in an optimization routine. To demonstrate a numerical implementation, an example problem arising in thermal design of a compression molding die is dealt with, showing that the number of heating lines chosen for the die strongly affects the ultimate uniformity of the cavity surface temperature.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.04a
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• pp.134-135
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• 2013

2008년 숭례문 화재 이후 국가지정 중요목조문화재에 소화전, 방수총, 감지기, CCTV, 자동화 재탐지설비 등 수많은 방재시설이 설치되었다. 그러나 설치 및 관리에 대한 기준이 없어 안전관리에 많은 문제점이 나타나고 있다. 또한 문화재의 특수성을 고려한 별도의 법률이 아닌 소방시설설치 및 유지관리에 관한 법률에서 특정소방대상물로 분류되어 소방법의 적용을 받고 있는 현실이다. 따라서 본 연구에서는 전국에 위치한 159개 국가지정 중요목조문화재 현장조사를 통하여 방재시설 실태를 알아보고 소방시설 설치 및 관리기준 마련의 필요성을 알아보고자 한다.

• Journal of Korean Institute of Industrial Engineers
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• v.30 no.3
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• pp.190-196
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• 2004

In this paper, we address a layout design problem, PTL[3], for determining an optimal 3-class-based dedicated linear storage layout in a class of unit load storage systems. Our objective is to minimize the expected single command travel time. We analyze PTL[3] to derive a fundamental property that an optimal solution to PTL[3] is one of the partitions based on the PAI(product activity index)-nonincreasing ordering. Using the property and partial enumeration, we construct an efficient exact algorithm with O $(n\;{\lceil}\;log\;n\;{\rceil}\;)$ for solving PTL[3].

• Proceedings of the Korean Society of Computer Information Conference
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• 2011.01a
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• pp.101-104
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• 2011

본 논문에서는 레이저 센서를 장착한 자율 이동 로봇을 이용하여 실내에서 장애물들을 검출한다. 데이터에서 나오는 패턴을 인식해 사람과 정적 장애물을 실시간으로 구분한 후 사람의 속도와 로봇의 속도를 각각 비교하여 따로 지정해준 안전거리를 유지하며 주행한다. 예상치 못한 상황이 발생될 것을 대비해 로봇의 전방에 범퍼 센서를 장착하여 안전성을 고려하였다. 로봇의 자기 위치 인식을 위해 StarGazer센서를 이용하였다. 패턴은 레이저 센서 데이터의 거리, 각 값을 이용하여 다리 패턴의 너비를 구하고 너비의 가운데 점을 중심점으로 지정해 추적하며 구동하는 알고리즘을 구현하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2002.11a
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• pp.240-243
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• 2002

In this paper, we propose a face region detection based on skin-color distribution and facial feature extraction algorithm in color still images. To extract face region, we transform color using general skin-color distribution. Facial features are extracted by edge transformation. This detection process reduces calculation time by a scale-down scanning from segmented region. we can detect face region in various facial Expression, skin-color deference and tilted face images.