• Journal of information and communication convergence engineering
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• v.9 no.5
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• pp.567-572
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• 2011

As the mobile devices have powerful CPUs and memories, it is possible to carry the large volumes of design drawings, such as DXF files, on mobile devices. However, since the format of a DXF file is the ASCII, it has the shortcoming where the size of a file is larger than a binary formatted file and it is difficult to display the entities of drawings quickly on mobile devices. In this paper, we design the DXF manager system on a smart phone. To speed up the rate of the display and panning, the DXF manager hires the spatial index, the fixed grid file. We also implement the system on the Samsung Omnia-1$^{(R)}$ to exploit the Windows Mobile$^{(R)}$ operating system.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2013.06a
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• pp.60-63
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• 2013

In this research, a mono-to-stereo upmixing algorithm based on music source separation is proposed. For the upmixing, a harmonic and percussive separation for jazz music is implemented. Then, the sources are re-panned by equalizing the loudness of left and right sides of listeners in the one proposed approach. In the other approach, the harmonic sources are spread by a decorrelator while the percussive sources are panned to the center. In the experiments, the re-panning algorithm showed advanced performance in terms of localization and timbral quality.

• Proceedings of the KIEE Conference
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• 2006.11a
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• pp.164-166
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• 2006

Wien Automatic System Planning Package (WASP) which is used to draw out generation expansion planning applies Dynamic Programming in Korea power system panning. While this package has an advantage that computes annual capacity, it has a disadvantage that can't consider environmental constraints. With the effectuation of the Kyoto Protocol in February, 2005, it is expected that CO2 emission has a severe effect on Korean power system. Therefore, as the most important issue, the generation expansion planning considering environmental constraints is rising in power system. This paper develops a mathematic model including not only generation expansion planning but transmission planning and considering regional supply-demand and environmental constraints, especially CO2 emission, and verifies propriety through the case study.

• Information and Communications Magazine
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• v.28 no.4
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• pp.35-40
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• 2011

본고에서는 지능형 국방 감시시스템에 적용할 수 있는 핵심 기술인 PTZ(Pan-Tilt-Zoom) 네트워크 카메라를 이용한 액티브 객체 추적 및 객체 특성 분석 기법을 소개한다. 본고에서 소개하는 기법은 기존의 적응적 배경 모델링 기반의 객체 검출에서 발생하는 고스트 현상을 제거하고 정지객체를 안정적으로 추적할 수 있는 방법과 PTZ 카메라의 Panning, Tilting, Zooming을 통하여 카메라의 FOV를 지속적으로 추적하기 위한 카메라 이동 위치 예측 알고리즘을 포함하고 있다. 본고에서는 또한, 지능형 감시시스템의 한 종류로서 일반인이 통행할 수 있는 구역에서 출입자의 의상 특성을 분석하여 비인증 출입자를 검출하는 방법과 추적하는 객체가 차량일 경우, 차량의 종류를 자동 분류하는 기법을 소개한다.

• Proceedings of the KIEE Conference
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• 2005.10b
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• pp.442-444
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• 2005

방사선을 센싱하는 센서들에는 어려 종류가 있으며, 그 센서에 따라서 감도나 센싱방식이 다양하다. 본 연구에서는 해상도가 높은 범용 CCD 센서를 이용하여 방사선을 검출하는데, 감도를 높이기 위해서 신실레이터라는 물질을 CCD CHIP 앞에 부착하였고, 들어오는 영상에서 방사선에 반응하여 생기는 백색량을 처리하여 방사선량을 측정할 수 있다는 것을 보여주고 있다. 또한 Panning을 하며 공간상에서 방사선이 가장 많이 나오는 포인터를 제시할 수 있다. 추후 스테레오 카메라 방식을 구현하여 방사선원까지의 거리 산출과 영상을 합성하여 입체화 시키는 연구도 진행할 예정이다. 논 연구의 결과물로 예기치 않은 방사선 사고의 경우 효과적인 사고처리에 활용될 수 있을 것이다.

• Journal of Institute of Control, Robotics and Systems
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• v.18 no.12
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• pp.1115-1121
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• 2012

This paper proposes a method to extract accurate plane of an object in unstructured environment for a humanoid robot by using a laser scanner. By panning and tilting 2D laser scanner installed on the head of a humanoid robot, 3D depth map of unstructured environment is generated. After generating the 3D depth map around a robot, the proposed plane extraction method is applied to the 3D depth map. By using the hierarchical clustering method, points on the same plane are extracted from the point cloud in the 3D depth map. After segmenting the plane from the point cloud, dimensions of the planes are calculated. The accuracy of the extracted plane is evaluated with experimental results, which show the effectiveness of the proposed method to extract planes around a humanoid robot in unstructured environment.

• Proceedings of the IEEK Conference
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• 1999.11a
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• pp.621-624
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• 1999

This paper describes a distance estimation method of object's motion in soccer image sequence by tracking field features. And we quantitatively evaluate the estimation accuracy We suppose that the input image sequence is taken with a camera on static axis and includes only zooming and panning transformation between frames. Adaptive template matching is adopted for non-rigid object tracking. For background compensation, feature templates selected from reference frame image are matched in following frames and the matched feature point pairs are used in computing Affine motion parameters. A perspective displacement field model is used for estimating the real distance between two position on Input Image. To quantitatively evaluate the accuracy of the estimation, we synthesized a 3 dimensional virtual stadium with graphic tools and experimented on the synthesized 2 dimensional image sequences. The experiment shows that the average of the error between the actual moving distance and the estimated distance is 1.84%.

• Journal of Electrical Engineering and Technology
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• v.8 no.1
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• pp.130-136
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• 2013

This paper presents the magnetic equivalent circuit analysis of a double-excited, two-degree-of-freedom (DOF) motor. The double-excited, 2-DOF motor is a laminated structure, making it easy to manufacture and giving it simple operating principles. We explain the structure of the 2-DOF motor and analyze the static characteristics using a magnetic equivalent circuit (MEC) to reduce analysis time. The feasibility of MEC analysis was confirmed by experimental results of the tilting, panning motion. We also confirmed the occurrence of holding torque in every motion.

• Proceedings of the KSRS Conference
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• 2007.10a
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• pp.85-89
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• 2007

This paper presents the method to provide a fast service for user in image manipulation such as zooming and panning of huge size high resolution satellite image (e.g. Giga bytes per scene). The proposed technique is based on the hierarchical structure that has 3D-Tiling in horizontal and vertical direction to provide the image service more effectively than 2D-Tiling technique in the past does. The essence of the proposed technique is to create tiles that have optimum level of horizontal as well as vertical direction on the basis of current displaying area which changes as user manipulates huge image. So this technique provides seamless service, and will be very powerful and useful for manipulation of images of huge size without data conversion.

• Fashion & Textile Research Journal
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• v.9 no.5
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• pp.500-506
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• 2007

This study aims to examine what consumers perceive about affection and control in association with personified brands, and to explore what effects such perception has on consumer behavior. The research methodology employed a questionnaire surveying female university students in the Seoul. The data were analyzed by SPSS Hangul 10.0 Statistic Package. 16 apparel brands that had been selected by a preliminary study were surveyed. The data analysis method employed a factor analysis, analysis of variance, and multiple regression analysis. The study found that consumers' perception of personified brands is divided into Friendliness and control like in interpersonal communication, and consumers' preference and purchase intention becomes different depending on affection and control perception. In particular, it was analyzed that more important factor that decides preference and purchase intention is the perception in the aspect of control, not in the aspect of Friendliness.