• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2007.04a
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• pp.121-125
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• 2007

Recently, constructing and complementing the road network database are a main key in all social operation in our life. However it needs high expenses for constructing and complementing the data, and relies on many people for finishing the tasks. This study propose a novel method to extract urban road networks from 3-D LiDAR data automatically. This method integrates height, reflectance, and clustered road point information. Geometric information of general roads is also applied to cluster road points group correctly. The proposed method has been tested on various urban areas which contain complicated road networks. The results conclude that the integration of height, reflectance, and geometric information worked reliably to cluster road points.

• Journal of the Korean Professional Engineers Association
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• v.33 no.4
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• pp.44-47
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• 2000

Recently number of reinstrumentation projects in the process plants has grown to meet the needs to modernize or upgrade the exsisting control systems in a bid to boost productivity and quality. Design, installation and start-up of these process automation systems can be successful and trouble-free only if decision points are addressed properly. The critical decision points are encountered from tile design through the start-up phases of implementing a modernization project and discussed extensively here on a practical basis. Key points are ;to assign a project manager out of the plant instrument engineers for him to organize and lead a project team. ;to follow three critical steps in designing and implementing. :to think ahead of the critical steps and to induce a positive cooperation from all level of participants in the effort to prevent possible schedule delays.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.1056-1064
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• 2003

The Euclidean steiner tree problem (ESTP) is to find a minimum-length euclidean interconnection of a set of points in the plane. It is well known that the solution to this problem will be the minimal spanning tree (MST) on some set steiner points, and the ESTP is NP-complete. The ESTP has received a lot of attention in the literature, and heuristic and optimal algorithms have been proposed. In real field, heuristic algorithms for ESTP are popular. A key performance measure of the algorithm for the ESTP is the reduction rate that is achieved by the difference between the objective value of the ESTP and that of the MST without steiner points. In recent survey for ESTP, the best heuristic algorithm showed around $3.14\%$ reduction in the performance measure. We present a evolution programming (EP) for ESTP based upon the Prim algorithm for the MST problem. The computational results show that the EP can generate better results than already known heuristic algorithms.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2000.11a
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• pp.934-938
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• 2000

This paper presents a laser cutting of 2D image. 2D image in pixel graphic format is converted into vector graphic image by image processing. Bitmap graphics are made easily, but can not being used in application works for geometry transition. The Sobel's Edge detection method is used to find boundary points on 2D image. The points are fitted into curves with sampling and filtering. Sampling can provide efficient computation and filtering reconstuct features in image. The NC code is generated on MURBS curve of the points. Also, the offset of contour and cutting conditions are considered.

• Proceedings of the Korea Society for Simulation Conference
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• 2003.11a
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• pp.201-206
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• 2003

In clinical practice, CT Angiography is a powerful technique for the visualziation of blood flow in arterial vessels throughout the body. However CT Angiography images of blood vessels anywhere in the body may be fuzzy if the patient moves during the exam. In this paper, we propose a novel technique for removing global motion artifacts in the 3D space. The proposed methods are based on the two key ideas as follows. First, the method involves the extraction of a set of feature points by using a 3D edge detection technique based on image gradient of the mask volume where enhanced vessels cannot be expected to appear, Second, the corresponding set of feature points in the contrast volume are determined by correlation-based registration. The proposed method has been successfully applied to pre- and post-contrast CTA brain dataset. Since the registration for motion correction estimates correlation between feature points extracted from skull area in mask and contrast volume, it offers an accelerated technique to accurately visualize blood vessels of the brain.

• 한국생물공학회:학술대회논문집
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• 2005.04a
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• pp.39-39
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• 2005

Large scale mammalian cell culture has become, over the past two decades, the preferred method to produce therapeutic monoclonal antibodies. In this presentation, I will introduce disposable bioreactor system and analyze key factors and points for consideration during mammalian cell culture process development. Example will be provided highlighting the selection of master cell, culture media and environmental factors based on productivity and product quality.

• The monthly packaging world
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• s.299
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• pp.114-117
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• 2018

2018년 들어 노동시장을 둘러싼 환경변화가 한층 빨라지면서 기업이 준비해야 할 인사관리 제도도 더욱 많아지고 중요해지고 있다. 다음에 대한상공회의소의 '대한상의 브리프 제51호(2018년 1월 29일)'에 소개된 "기업이 챙겨야 할 '2018년 인사관리 핵심 포인트'"를 통해 새로운 노동환경에 맞는 기업의 인사관리 핵심 포인트에 대해 살펴보도록 한다.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 1993.10a
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• pp.473-477
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• 1993

Improving the legal system is one of the key points in strengthening the control of environment . The coordination of economic development with environment protection and the legislation in Guangdong since 1980 is described. Some proposals for stimulating the economy by enhancing the environment protection in accordance with the law are offered.

• Magazine of RCR
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• v.17 no.3
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• pp.50-53
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• 2022

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.11
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• pp.2478-2484
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• 2010

In this paper, real-time detection methods for Panorama system Key-Points offers. A recent study in PANORAMA system real-time area navigation or DVR to apply such research has recently been actively. The detection of the Key-Point is the most important elements that make up a Panorama system. Not affected by contrast, scale, Orientation must be detected Key-Point. Existing research methods are difficult to use in real-time Because it takes a lot of computation time. Therefore, this paper propose BLOG(BitRate Laplacian Of Gaussian)method for faster time Key-Point Detecting and Through various experiments to detect the Speed, Computation, detection performance is compared against.