• Journal of Fashion Business
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• v.6 no.2
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• pp.29-40
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• 2002

Honor guards‘ dress represented by royal carriage parade. This thesis studies the ceremonial dress worn by the ceremonial troops during the Hwa-sung Hang-hang Ban-cha drawing (華城幸行班次圖) in the Chosun dynasty of King Jung-jo. The purpose of this study is to understand the national level ceremony by closely looking into the traditional ceremonial dress and the various signs that were used at these events thereby enhancing the cultural status of the Jung-jo King period. The Hwa-sung Hang-hang Ban-cha drawing(華城幸行班次圖) has its characteristics and also has commonality between the garments worn at these ceremonies. These garments are a traditional heritage brought down from many ages before and is a reflection of the changes that have occurred within our everyday life. Among these many records the Bancha-do(班次圖) is a representation of records that show what was worn by both nobles down to the ceremonial troops. The uniforms of the ceremonial troops were not only huge in size but also very diverse according to rank and grade. They used strong true colors with colorful flags, ceremonial items and musical instruments. These all added to the grandeur of the ceremony. The ceremonial flag was itself a symbol and was the core of the whole ceremony and parade. These ceremonial flags represented the heaven, sun, moon, hill and animals as well as supernatural gods. All these showed change in shape, color and content by age and time. Also the Yongmun Gichi(Dragon flag: 龍紋旗幟) is a supernatural being representing the power and wish of the ruler. The Chunsang-mun represents the indivisible relationship between man and heaven and also a metaphor for absolute power. A close look at ceremonial instruments show a direct representation towards power such as an axe, spear and sword and integrated with other large ceremonial items not only provided a shade but was also a representation of worship. These all were a more or less representation of authority. The musical instruments expressed the absolute authority of the ruler and maintained the marching order and also added grandeur to the parade. A summary of the ceremonial troops in the As seen above, these national ceremonies were a representation of the present power of authority and the will to rule. These ideas and the philosophy of “ruled by heaven” is represented here in the uniforms and the ceremony itself. The Bicentennial anniversary of the Nung - hang of February 1795 will be an excellent opportunity to show and inherit the tradition and recreation of our heritage. In this view we must look at the color and shape of traditional dress to be able to inherit and learn from our ancestors.

• Proceedings of the KSRS Conference
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• 2005.10a
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• pp.763-765
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• 2005

In the area of remote sensing, an immense number of images are continuously generated by various remote sensing systems. These images must then be managed by a database system efficient storage and retrieval. There are many types of image database systems, among which the content-based image retrieval (CBIR) system is the most advanced. CBIR utilizes the metadata of images including the feature data for indexing and searching images. Therefore, the performance of image retrieval is significantly affected by the storage method of the image metadata. There are many features of images such as color, texture, and shape. We mainly consider the shape feature because shape can be identified in any remote sensing while color does not always necessarily appear in some remote sensing. In this paper, we propose a metadata representation and storage method for image search based on shape features. First, we extend MPEG-7 to describe the shape features which are not defined in the MPEG-7 standard. Second, we design a storage schema for storing images and their metadata in a relational database system. Then, we propose an efficient storage method for managing the shape feature data using a Wavelet technique. Finally, we provide the performance results of our proposed storage method.

• Journal of Korea Multimedia Society
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• v.7 no.11
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• pp.1531-1539
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• 2004

In this paper, we propose an efficient method for locating human lips. Based on Point Distribution Model and Principle Component Analysis, a lip shape model is built. Lip boundary model is represented based on the concatenated gray level distribution model. We calculate the distribution of shape parameters using Gaussian mixture. The problem to locate lip is simplified as the minimization problem of matching object function. The Down Hill Simplex Algorithm is used for the minimization with Gaussian Mixture for setting initial condition and refining estimate of lip shape parameter, which can refrain iteration from converging to local minima. The experiments have been performed for many images, and show very encouraging result.

• Journal of the Society of Naval Architects of Korea
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• v.44 no.5
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• pp.517-525
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• 2007

This paper presents how to approximate an optimal shape of roll bending process in the fabrication of a curved shell plate. The roll bending process usually makes the cylindrical or conic shape from an initial flat plate. It means that the final shape is developable or its surface representation has zero Gaussian curvature. The fabrication shape is important in order to find process parameters of roil bending. An optimal concept is used to determine the developable fabrication shape which is in the closest proximity to the design surface or the given shell plate and is subject to developability. The results and the efficiency of this algorithm are evaluated by applying to some shell plates. Furthermore, the fabrication shape will be fundamental information for other process parameters of roll bending such as the vertical displacement of the center roller and the rolling directions.

• Communications for Statistical Applications and Methods
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• v.31 no.3
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• pp.309-322
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• 2024

Identifying algae in water is important for managing algal blooms which have great impact on drinking water supply systems. There have been various microscopic approaches developed for algae classification. Many of them are based on the morphological features of algae. However, there have seldom been mathematical frameworks for comparing the shape of algae, represented as a planar continuous curve obtained from an image. In this work, we describe a recent framework for computing shape distance between two different algae based on the elastic metric and a novel functional representation called the square root velocity function (SRVF). We further introduce statistical procedures for multiple shapes of algae including computing the sample mean, the sample covariance, and performing the principal component analysis (PCA). Based on the shape distance, we classify six algal species in watersheds experiencing algal blooms, including three cyanobacteria (Microcystis, Oscillatoria, and Anabaena), two diatoms (Fragilaria and Synedra), and one green algae (Pediastrum). We provide and compare the classification performance of various distance-based and model-based methods. We additionally compare elastic shape distance to non-elastic distance using the nearest neighbor classifiers.

• Architectural research
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• v.2 no.1
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• pp.7-15
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• 2000

A bubble diagram is understood as a graphic medium which bridges program and plan in architectural design process. The role of a bubble diagram is either to generate or to explain a plan in relation to its program. Despite the explicit role of a bubble diagram in architectural design process, what a bubble diagram indicates exactly is very ambiguous. Here I attempt to reveal the nature of the bubble diagram more sharply. My main argument is that the ambiguity of a bubble diagram results from the fact that it is used to range two different types of representational formats. Reviewing the theories of shape recognition and shape representations in vision science, I will also argue that the procedural description of architectural design process should be criticized and that the focus of design method research has to be shifted into the representational format of form description in architectural design process.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2004.10a
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• pp.411-418
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• 2004

Using a level set method we develop a shape optimization method applied to energy flow problems in steady state. The boundaries are implicitly represented by the level set function obtainable from the 'Hamilton-Jacobi type' equation with the 'Up-wind scheme.' The developed method defines a Lagrangian function for the constrained optimization. It minimizes a generalized compliance, satisfying the constraint of allowable volume through the variations of implicit boundary. During the optimization, the boundary velocity to integrate the Hamilton-Jacobi equation is obtained from the optimality condition for the Lagrangian function. Compared with the established topology optimization method, the developed one has no numerical instability such as checkerboard problems and easy representation of topological shape variations.

• Journal of the Korean Society of Costume
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• v.54 no.4
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• pp.113-127
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• 2004

This study examined the trend of pattern which appeared throughout men's clothing fashion magazine from 1999 to 2002 and the influence which the demographic characteristic have on the sensibility dimension of pattern and the preference degree of kinds of pattern. The results of study were as follows. 1) The pattern which was used most frequently on recent men's clothing was a length stripe, and the representation technique which was used most frequently on recent men's clothing was the technique of a geometric expression. 2) The pattern which men and women preferred most out of ten kinds of patterns-length stripe, width stripe, oblique stripe, check, square, waterdrop, paisley, flower of style shape, flower of realistic shape, flower of shape-was a length stripe. 3) The sensibility dimension of pattern image was composed of fascination, dignity, daring, gentleness, and reality. 4) Because sensitivity dimension and kinds of pattern were significant according to the distinction of sex, vocation, academic career, income, this study can conclude the demographic characteristic have an influence on sensitivity dimension and kinds of pattern.

• Korean Journal of Computational Design and Engineering
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• v.15 no.1
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• pp.33-42
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• 2010

In this study, new medial surface calculation methods using Voronoi diagrams are investigated for the point samples extracted on closed surface models. The medial surface is defined by the closure of all points having more than one closest point on the shape boundary. It is a one of essential geometric information in 3D and can be used in many areas such as 3D shape analysis, dimension reduction, freeform shape deformation, image processing, computer vision, FEM analysis, etc. In industrial parts, the idealized solid parts and shell shapes including sharp edges and vertices are frequently used. Other medial surface extraction methods using Voronoi diagram have inherent separation and branch problems, so that they are not appropriate to the sharp edged objects and have difficulties to be applied to industrial parts. In addition, the branched surfaces on sharp edges in shell shapes should be eliminated to obtain representative medial shapes. In order to avoid separation and branch problems, the new approach by analyzing the shapes and specially sampling on surfaces has been developed.

• Archives of design research
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• no.16
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• pp.199-210
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• 1996

시사일러스트레이션은 80년대 이후 인쇄매체의 다양화로 인하여 매우 활발하게 적용되어지고 있는 실정이다. 그러나 시사일러스트레이션의 경우 시각적 커뮤니케이션 매체로서의 기능을 독립적으로 발휘하지 못하고, 아직도 과거의 일러스트레이션과 같이 텍스트의 복조역활을 하고 있거나 또는 지면을 장식해주는 단순한 그래픽 적 요소로서의 역할만 하는 경우가 많이 있다. 현재 시사 매거진의 주당 발행 부수가 70여만에 이른다는 점을 감안할 때 그 역할이 매우 중요하다고 볼 수 있으므로, 본 논문에서는 그 동안 일러스트레이션의 평가가“잘 그렸다”,“못 그렸다”는 식의 평가방식을 벗어나 가능한 한 학술적인 근거를 갖는 평가 기준을 세워 보고자 하는 데에 연구의 목적을 두었다. 평가의 기준으로서는 우선 일러스트레이션을 시각적 정보전달 매체로서의 기능적 측면이 될 수 있는“소통 성(Communicability)”과 모든 시각적 조형예술작품의 경우와 마찬가지로 그의“조형성(Shape-Quality)”측면에서 검토가 가능하도록 하여“유사성 문제”,“가시적 특징 파악의 문제”그리고“객관성 문제”등 8가지의 기준을 세워보고자 하는 데에 그 의의를 두고 있다.