• Journal of Broadcast Engineering
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• v.19 no.4
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• pp.478-490
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• 2014

In order to make 3-D display technique a better tool to provide viewers with realistic stereoscopic experience, various researches have been done in the many relevant fields. This psychophysical study was designed to investigate whether there was any difference in the perceptual processing between a dominant and non-dominant eye when a 3-D cue was provided exclusively to only one eye. We measured the reaction time for detecting a depth change by providing the viewer's each eyes with differential 3-D stimuli, which have systematical patterns. We obtained that there was a consistent 3-D perceptual performance when the 3-D cue was provided to the viewers' left eye regardless of their eye dominance. The result suggests that it might be a better technique to arrange the camera for left eye to carry 3-D cues to get the viewer's consistent 3-D perception.

• Science of Emotion and Sensibility
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• v.7 no.2
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• pp.157-161
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• 2004

The clothing by bias-cut fabric are outstanding in their shilluettes mainly due to their high level of drapability. The clothing, however, need a specific cutting process for being even trimming line skirts. The 3-D trimming system developed in the study has been successful in making high-quality skirts with extremely even trimming line. The system is expected to make quality apparel in shorter manufacturing time.

• Journal of Digital Convergence
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• v.10 no.8
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• pp.239-247
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• 2012

This paper is related to an Object VR-based virtual textile wearing system carrying out textile texture mapping based on viewpoint vector estimation and intensity difference map. The proposed system is characterized as capable of virtually wearing a new textile pattern selected by the user to the clothing shape section segmented from multi-view 2D images of clothes model for Object VR(Object Virtual Reality), and three-dimensionally viewing its virtual wearing appearance at multi-view points of the object. Regardless of color or intensity of model clothes, the proposed system is possible to virtually change the textile pattern with holding the properties of the selected clothing shape section, and also to quickly and easily simulate, compare, and select multiple textile pattern combinations for individual styles or entire outfits. The proposed system can provide higher practicality and easy-to-use interface, as it makes real-time processing possible in various digital environment, and creates comparatively natural and realistic virtual wearing styles, and also makes semi-automatic processing possible to reduce the manual works.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.2
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• pp.101-113
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• 2016

This study was conducted in order to analyze draping and flat pattern according to jacket design, and provide basic materials for developing a jacket pattern that can enhance fitness, functionality, and aesthetic expression of clothes by reflecting esthetic expression of draping and efficiency of flat pattern at the same time. For the experimental jacket designs of a one-piece sleeve jacket and a two-piece sleeve jacket were selected among the entries of the designer Rubina for 2014 F/W Seoul Fashion Week. Designer brand Rubina usually produced clothes using draping and the designer brand company provided the experimental patterns for the study. We also had flat patterns of the same design and size specifications designed by a flat patternmaker who has 30 year-experience in flat pattern like Rubina. The test apparel jacket was made of 20's cotton yarns. Three models wore the jackets and evaluation on appearance fitness was conducted by 7 members in an expert panel group from August 10, 2015 to September 10, 2015. As a result of appearance fitness analysis on one-piece sleeve jacket, there were significant difference in 4 items among 17 items in terms of overall appearance. The appearance of jackets by draping had higher score than those using flat pattern. As for two-piece sleeve jacket, there were significant differences in 7 items among 17 items related to overall appearance. As for the items related to sleeve, 5 items out of 13 showed significant differences. Except for one item, appearance of jackets using draping had higher score than flat pattern. As for motion fitness, draping was evaluated to be more comfortable. Applying the items with high scores in appearance and motion fitness in draping to flat pattern, The study suggests a new jacket pattern development that would increase the satisfaction of consumers for future research.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
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• 2003.05a
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• pp.19-22
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• 2003

경사의 사선방향으로 절단하여 봉제된 바이어 컷 직물로 제조된 의류는 일반 의류와 달리 우아한 외관을 타나낸다. 이 직물의 단점은 형태안정성이 나빠서 완전제품의 형태가 패턴의 형의 형태와 다른 모양을 나타내는 경우가 많으며, 특히 밑단 부분이 불균일하게 쳐지므로, 가지런히 절단하는 트리밍공정을 부가적으로 거치게 된다. 현재의 봉제 공정에서는 트리밍 단계를 모두 숙련공들의 수작업에 의존한 평면 커팅 방법으로 수행하기 때문에 작업자의 피로도에 따라 불량품이 양산되고 그에 따른 소비자들의 불만 요인도 높아지므로, 본 연구에서는 치수 조절 마네킹을 제조하여 실제 의복 착용 상태를 그대로 재현 한 후, 회전시키면서 스스로 회전하는 자동 커터에 의해서 공간상에서 트리밍 하는 3-D 입체 시스템을 개발하였다. 이 시스템에 의하여 제조된 의류는 트리밍 라인이 균일하고 매끄러우며, 안감이 밖으로 밀려나오는 경우가 없어 외관상 품위가 있는 외관을 나타내었다. 또한 수작업에 비하여 제조 속도가 훨씬 빠르므로 봉제 후공정에서의 의류 제조 시간을 획기적으로 단축하는 신속 생산 시스템의 요소로서 충분히 사용될 수 있는 가능성을 나타낸다.

• Proceedings of the Acoustical Society of Korea Conference
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• 1998.08a
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• pp.427-431
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• 1998

스테레오, MIDI, MP3 등등의 신호를 입력으로 하여 음상의 공간감, 거리감, 방향감, 확산감, 위치감 등이 지각을 느끼게 하는 공간적 현장감 시스템을 제안한다. 본 제안은 2채널로 기록된 매체를 2채널 또는 다채널로 표현이 가능하며 영상과 더불어 두 개의 스피커만으로도 입체 음향을 즐길 수 있다. 음악의 경우는 장르에 따라 각각의 특징을 가지고 있다. 그러한 특징은 위치감과 방향감에 의해 음장의 형태를 구현하고 공간감 거리감을 부과하므로 입체 음장 구현을 도모한다. 그리고 확산감을 부과하므로써 실조화 공간 음장을 구현할 수있다. 본 논문은 특정한 음색을 변화하기 위하여 이퀄라이저를 이용할 필요가 없으며, 다양한 음장 형태를 DSP를 이용 알고리즘화 하여 구현하던 것을 본 RSF는 아날로그 방식으로 구현하므로써 노이즈 측면과 PCB 패턴 부분 고려등을 고려하지 않고도 구현할 수 있다.

• The Research Journal of the Costume Culture
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• v.11 no.2
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• pp.208-218
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• 2003

The purpose of the study is to identify the designers' and the patterner's pattern making, draping and the use of dress form in domestic companies of designer's brand to present basic information for effective pattern works. It turned out that the designer brand companies at home use flat pattern and draping at the same time rather than draping only The effects of the use of draping lies in unique designs and elastic materials, which seems proper phenomena for the current design trend such as high duality and diversification. But, draping has such problems that the pattern takes long time to be finished and that the staffs don't acquire well the needed skills due to the lack of draping education. To secure the high added value of fashion, it is required to develop education programs for new skills and to apply draping actively. Also, it requires an educational system in which practice oriented skills are cultivated, and efficient investment into apparel business.

• Journal of the Earthquake Engineering Society of Korea
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• v.3 no.2
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• pp.97-106
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• 1999

In order to check the necessity of seismic reinforcement for a great number of existing structures effectively, it might be desirable to introduce the multi-step seismic evaluation system. This paper presents close relationships between shear-to-moment capacity ratio of a member and seismic performance of structures concerned through the failure mechanism investigation in the view of geological and structural characteristics. Based on it, the simple seismic performance evaluation method has been proposed and its effectiveness was verified by comparing with the damage condition of structures damaged under Hyogo-Ken Nambu Earthquake.

• The Transactions of the Korean Institute of Power Electronics
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• v.12 no.3
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• pp.221-233
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• 2007

In this paper, a simple but effective position profile generation algorithm for single axis high dynamic linear machine drive system is presented. In the recent industrial application fields like as LCD/PDP and semiconductor factory, requirements for the high performance positioning system with optimal position profile generator are highly increased to reduce the overall processing time. There might be various solutions for position profile generating algorithm according to the application type. A square-wave Impact quantity(Jerk) based algorithm with minimal locomotion time is argued in this paper to minimize the total time of one movement under some specific constrains such as maximum speed limit and maximum acceleration limit. In order to reduce the calculation efforts and satisfy the minimal locomotion time condition, the time variants representing each profile sector and a simple condition comparison algorithm are adopted. Also, the actual implementation method for profile generation algorithm and it's real performance results are presented through commercial linear machine drive system.

• Proceedings of the Korean Fiber Society Conference
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• 2002.04a
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• pp.17-19
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• 2002

자외선 조사경화는 자외선조사에 의해 올리고머 등을 광중합/광가교하여 경화시키거나 섬유고분자의 표면을 처리하여 표면성질을 변화시키는 것으로 이를 이용한 섬유의 염색가공은 환경친화성, 에너지 절감, 높은 연속 생산속도, 고 해상도의 패턴 부여가능, 입체적인 구조물의 처리 가능, 장비의 소형화 및 설비면적의 감소 등 우수한 장점을 가지고 있어 차세대 첨단 염색가공기술로서 그 중요성이 부각되고 있다. [l] (중략)