• Journal of Korea Society of Digital Industry and Information Management
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• v.8 no.1
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• pp.55-64
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• 2012

The advantage of direct volume rendering is to visualize structures of interest in the volumetric data. However it is still difficult to simultaneously show interior and exterior structures. Recently, cone beam computed tomography(CBCT) has been used for dental diagnosis. Despite of its usefulness, there is a limitation in the detection of interior structures such as pulp and inferior alveolar nerve canal. In this paper, we propose an efficient volume rendering model for visualizing important interior as well as exterior structures of dental CBCT. It is based on the concept of illustrative volume rendering and enhances boundary and silhouette of structures. Moreover, we present a new method that assigns a different color to structures in the rear so as to distinguish the front ones from the rear ones. This proposed rendering model has been implemented on graphics hardware, so that we can achieve interactive performance. In addition, we can render teeth, pulp and canal without cumbersome segmentation step.

• Journal of the Korea Furniture Society
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• v.24 no.3
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• pp.217-225
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• 2013

The furniture of the Joseon era, life sense of human forms a culture has appeared well. Feeling of life refers to the sense of feel natural to the history and traditional culture of the area and their own customs. Further, it is possible to be a sense that reflects the mental contents ego, ethical and religious. Furniture traditional and sophisticated sense like this is to take care of the sophistication that comes out from the inside than the beauty artificial as a function of the sense and user preferences. This is a feeling of unique Korean. Due to changes in the housing, the beauty of these illustrates the altered form mechanically a uniform in modern times. Have that desired to be manufactured furniture by applying the neck Korean furniture of our living environment that will change in Western Europe of today, with the tradition of the modern lifestyle.

• Journal of the Korean Society of Clothing and Textiles
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• v.25 no.5
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• pp.880-890
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• 2001

The purpose of this study was to find out the correlation between the spirit of the times and the characteristics of each eras fashionable silhouette and clothing in Gothic and Modern Period. Theoretical studies about the spirit of times, and the characteristics of clothing about each times were preceded. The results were as follows: The similarities of spirit of times were 1) emphasis on reason and rationality 2) centralization by christianity in Gothic Period, and modernism theory in Modern Period 3) times of the nobility and the churchman in Gothic, and elite class in Modern era. The similarities of characteristics of clothing were 1) preference of slim body form as the ideal body figure, 2) emphasis on convenience and function for freedom in action, 3) discontinuation of traditional way of clothing attitude, 4) emphasis on straight and simple on the silhouette and design, 5) tendency of eliminating ornaments on clothing.

• Journal of Fashion Business
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• v.10 no.3
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• pp.1-22
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• 2006

This study aims at strengthening the national competitiveness of Korea's clothing industry as it provides substantial information on type characteristics and body types for Chinese women and improves the fitness of clothing, considering human proportion in the production of clothing products for export to China. This study measured for 1,381 women between 19 and 50 aged residing in Beijing and Shanghai, China from June 23 to August 7, 2004 by the simple random sampling. Data was analyzed by used SPSS/WIN 10.0 Program. As for the of method of this study, the technical statistical analysis, F-test, and Duncan-test were made. The results of this study are as follows. As age increases, the shoulders seem higher with less curvature on waist, while the front has turned into the straight silhouette with the side turned into the flat silhouette without curvature, and waist and belly turn into the body type of short and thick.

• Journal of the Korean Home Economics Association
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• v.39 no.12
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• pp.177-188
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• 2001

The purpose of this study is to investigate the fitness according to drafting method of the block patterns for women in Korea. The major findings of this study are as follows: 1. According to each sensory test of the frontal view, back view, side view and silhouette Block Pattern I is the best of them in summation of the sensory tests score. Block, Pattern D and I have good shape too. However the best block Pattern D shows good score in evaluation of overall fitness and silhouette. 2. Most of block patterns, which show high scores in sensory tests, are the Compromise Method taking merits of the Proportional Method and Short Measure Method among the Pattern Drafting Methods. Box-shape patterns show low score in the sensory tests. 3. Regarding to the number of measurement, the patterns of the Compromise Method using 6-8 measurements seem to be optimal. In degree of fitness, loose fit type basic patterns are better than other patterns from a viewpoint of the total satisfaction.

• Journal of Institute of Control, Robotics and Systems
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• v.14 no.2
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• pp.178-183
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• 2008

Human motion analysis is researched as a new method for human-robot interaction (HRI) because it concerns with the key techniques of HRI such as motion tracking and pose recognition. To analysis human motion, extracting features of human body from sequential images plays an important role. After finding the silhouette of human body from the sequential images obtained by CCD color camera, the skeleton model is frequently used in order to represent the human motion. In this paper, using the silhouette of human body, we propose the feature extraction method based on hybrid skeleton for detecting human motion. Finally, we show the effectiveness and feasibility of the proposed method through some experiments.

• Proceedings of the IEEK Conference
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• summer
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• pp.361-364
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• 2004

This paper describes an automatic 3D models generation algorithm based on 2D silhouette images, using X-ray camera without camera parameters. The algorithm takes a multi steps process approach. First, a series of 2D silhouette images is captured from different directions of object and then converted to binary images. An octree data structure is constructed for voxel-based representation of object. An estimate 3D volume of object can be reconstructed by intersecting voxels and the 2D silhouettes. The marching cube algorithm is applied to get triangle mesh representing of the obtained 3D model for rendering.

• Korean Journal of Computational Design and Engineering
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• v.11 no.6
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• pp.455-463
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• 2006

Hidden line removal(HLR) algorithms can be devised either in the image space or in the object space. This paper describes a hidden line removal algorithm in the object space specifically for the CAD viewer data. The approach is based on the Appel's 'Quantitative Invisibility' algorithm and fundamental concept of 'back face culling'. Input data considered in this algorithm can be distinguished from those considered for HLR algorithm in general. The original QI algorithm can be applied for the polyhedron models. During preprocessing step of our proposed algorithm, the self intersecting surfaces in the view direction are divided along the silhouette curves so that the QI algorithm can be applied. By this way the algorithm can be used for any triangulated freeform surfaces. A major advantage of this algorithm is the applicability to general CAD models and surface-based visualization data.

• Journal of Fashion Business
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• v.16 no.6
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• pp.52-62
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• 2012

This study researched the jeans street fashion for young men looked like 20s and 30s in Seoul, and analyzed jeans by silhouette by fit and color by washing. The photos were of jeans from the waist to the bottom; and among a total of 1,159 images, 847 images that could be analyzed were selected and used for the analysis. From the images used in the analysis, the jeans fits were categorized according to silhouette and color that were used for the visual selection. As a result, young men preferred fashion jeans like slim or skinny jeans. Most of the tight fitting skinny and slim jeans were slim baggy style jeans, like low waist & long rise with a low back york, which was a key trendy pants style. The jeans color analysis by washing finish showed that dark jeans were most frequently, most of the dark jeans had the original denim color based on the non or normal wash techniques. It is hoped that the results of this study can be used as basic data for the development of designs for jeans brands.

• Journal of Korea Game Society
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• v.20 no.3
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• pp.65-74
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• 2020

In the shadow map method, if the shadow map is magnified, the shadow has a jagged silhouette. Herein, we propose a soft shadow method that filters reshaped silhouettes analytically. First, the shadow silhouette is reshaped through sub-texel edge detection, which is based on linear or quadratic curve models. Second, an integral shadow filtering algorithm is used to accurately obtain the average shadow intensity from a definite integral estimation. The implementation demonstrates that our solution can effectively eliminate jagged aliasing and efficiently generate soft shadows.