• 전기전자학회논문지
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• 제24권2호
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• pp.638-648
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• 2020

현재 지능화 된 협동로봇의 사용자 추종 방법은 비젼 시스템 기반 및 라이다를 이용한 사례가 일반적이고 성능도 우수하다. 그러나 2020년 전세계로 확산된 코로나19 사태에 폐쇄된 공간에서 의료진과 협동을 위한 로봇의 활약은 미흡한 실정이였다. 그 이유는 의료진들은 바이러스 감염 방지를 위하여 모두 방호복을 입고 있어 기존 연구된 기술로는 적용이 쉽지 않기 때문이다. 따라서 본 논문에서는 이러한 문제점을 해결하기 위하여 초음파 센서를 송신부와 수신부로 분리하여 이를 바탕으로 사용자의 위치를 추정하고 능동적으로 모바일 플랫폼이 사람을 따라다니며 협동 할 수 있는 기법을 제안하였다. 그러나 초음파센서는 경면반사 및 수, 발신 간 통신 단락으로 인한 불규칙 오차가 발생하고, 오차를 줄이기 위해 메디안 필터 일부 개선하여 적용하였으며 협소한 공간에서 원활한 작업 수행을 위해 곡률궤적을 적용해 주행기술을 향상시켰다. 실험 결과 메디안 필터 전, 후 거리, 각도의 오차는 약 70% 감소하였으며 'S', '8'자 코스 주행을 통해 주행 안정성을 확인하였다.

• 패션비즈니스
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• 제10권4호
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• pp.16-28
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• 2006

The purpose of this study is to investigate the content and changes of modern Korean men's wear advertisement from the 1960s to the 1990s by reviewing fashion magazines and pictorials. Research problems were as follows.; First, analyze the types and their units of measurement in men's fashion advertisements from 1962 to 1998. Second, examine the differences of quantitative change in men's fashion advertisements according to each period. The total 857 advertisements were selected from Shin Dong-A, Joongang Magazine, and Bokjangwolbo from 1972 to 1998. For analyze the result, frequency analysis and $x^2$-test were used. Results were as follows. First, through the review of literatures and pre-tests, 6 units of measurement were identified. They were product type(formal wear, casual wear, sports wear, dress shirts, accessory, inner wear, fabric and the others), brand type(national brand, licensed brand, imported brand, others), appeal type(image, product, others), representation type(photograph, illustration, others), medium type(man, product, others), and color type of advertisement(black & white picture, color picture). Second, for the types of advertisements, formal wear, national brand, image appeal, figure medium, photograph for presentation and color picture are the most frequently shown in men's fashion advertisements from 1962 to 1998. Third, for product, more accessory advertisements were found than the clothing in the 60s and the 70s, and casual wear advertisements in the 80s and formal wear advertisements in the 90s were dominated. National brand type was dominant through all four period. Product appeal type in the 60s and the 70s and image appeal type in the 80s and the 90s were prevailed. For medium, product type in the 60s and the 70s and figure type in the 80s and the 90s were dominated. Black & white picture in the 60s and the 70s and color picture in the 80s and the 90s were prevailed. Lastly, photograph was the most frequently used for presentation type through all periods.

• 대한가정학회지
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• 제46권9호
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• pp.1-6
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• 2008

홍화 황색소와 홍색소로 염색을 한 나일론 직물에 자외선을 조사 한 후 시료들의 염착량과 색채변화, 표면 특성 변화와 인장 강도 변화를 측정한 결과는 다음과 같다. 1. 색소의 종류에 상관없이 자외선 조사시간 증가에 따라 염착량이 감소되었다 그러나 홍색 소보다는 황색소로 염색한 시료들의 자외선 조사 28일 후의 염착량 보유율이 더욱 낮았다. 2. 색채변화의 경우, 황색소로 염색한 시료들은 $L^*$은 증가하고 $a^*$와 $b^*$는 감소하였으며, H/VC, ${\Delta}E$등 색채 전반에 퇴색이 나타났다. 홍색소로 염색한 시료들 도 자외선 조사 시간 증가에 따라 $L^*$은 증가하고 $a^*$는 감소하였으며, $b^*$는 증가하였고, H/VC, ${\Delta}E$등 색채 전반에 퇴색이 나타났다. 그러나 홍색소와 황색 소로 염색한 나일론 직물 시료의 조사 28일 후의 색차는 황색소가 더욱 낮아 나일론 직물에는 황색소가 자외선에 대한 견뢰도가 더욱 높은 것으로 보인다. 3. 자외선 조사 시간에 따른 표면 특성 변화의 결과, 색소의 종류와 상관없이 조사 28일 후 모든 시료들에서 심한 손상을 관찰할 수 있었다. 4. 자외선 조사 시간에 따른 인장 강도 변화 결과, 모든 종류의 시료에서 자외선 조사 시간 증가에 따른 강도의 손실을 알 수 있었다. 그러나 홍색소보다는 황 색소로 염색한 나일론 직물 시료들의 인장 강도 보유율이 상대적으로 높은 것으로 나타났다.

• 대한가정학회지
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• 제46권9호
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• pp.99-112
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• 2008

The increasing rate of obesity in school aged children has become a conspicuous social phenomenon in Korea. This has been linked to greater economic growth, increasingly westernized dietary habits, and a consumer driven society. Given that obesity can lead to social exclusion or unfavorable attention by other students in a school setting, the design of plus-size garments have become important for effective appearance management skills. This research aimed to establish a somatotype database for obese school boys, aged 10 to 12, in order to develop a sizing system for plus-size upper garments. In order to measure somatotype of average and obese school boys, five categories were recorded; height, obesity, length of trunk, thickness of neck and chest. For obese boys, subcutaneous fat thickness and position of B.P/shoulder point factors were recorded. Obesity factor was subdivided into overall and specific ones, and while the deviation of obese body types was severe compared to the average type. Obese body type showed significantly higher measurements in width, girth, thickness. This is linked to the fact that the frequency ratio of obesity increases with age. Stature and chest were chosen as control dimensions for boys' wear. As crosstabulation of stature(5cm interval) and chest girth(2, 3 and 4cm), and stature(5cm interval)/chest girth(3cm interval) sizing system showed, the most effective cover ratio and adaptability to the data distribution $25{\sim}75$ quartile. Based on the findings, 10 sizes were formulated for average body type, while 18 sizes were formulated for obese type, whose size cover ratios were 48% and 62.9%, respectively. The primary ranges of stature were $145cm{\sim}150cm$, while those of chest girth were $79{\sim}82cm$. Each size was declared as "chest-somatotype{A(average)/O(obesity)-stature". This study proposed a plus-size upper garment sizing systems for obese boys, accompanied with reference measurements for suit, casual wear and underwear. The finding showed that the two systems were totally separate and not overlapping, meaning that plus-size sizing system is essential for obese school boys. The obesity type system had more size and wider range specs.

• 복식
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• 제62권4호
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• pp.107-122
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• 2012

The purpose of this study is to investigate the changes and developments that occurred as a result of the exchanges of gyeong-geum(經錦), a warp-faced compound weave of East Asia, and wie-geum(緯錦), a weft-faced compound weave of West Asia. In order to maximize the efficiency of this research, topics were narrowed down to the weaving skills and patterns, and the period was limited to the Tang dynasty. The systematic characteristics and differences of gyeong-geum and wie-geum were compared and contrasted through different works of literature. Then the excavated remains of geum-textiles were analyzed and the characteristics of the geum-textiles were defined in chronological order. The origin of wie-geum is traced back to the time when West Asia started to imitate the weaving style of the East Asian gyeong-geum. When combined with the weaving skills of the West Asian, gyeong-geum, which broke through the West and developed into the weft-faced compound twill silk, or samite. The exchange of geum-textiles took place as the techniques of gastric filament woven geum-textiles returned to the East. Along with the pearl roundel motifs of Sassanian Persia, mythical animals and western motifs of hunter patterns were used for the patterns of wie-geumin during the early Tang dynasty. This tendency is related to pa-sa-geum(波斯錦), ho-geum(胡錦), beon-geum(番錦) according to the recorded literature. The 8th and 9th century are periods when the West Asian Persian style was abandoned and the East Asian style, samite, was established. Not only did S twist silk threads replace Z twists, but also the repetition of patterns unfolded along with the weft and the warp. As this tendency was strengthened after the 9th century, the expression of patterns became more vividly colorful and showed both elements of naturalism and realism. The characteristics of the Bosangwha(寶相花) pattern in the Tang period were established with the rampantly repeated rosettes with birds often holding auspicious branches, that fly amid floral compositions.

• 한국의류산업학회지
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• 제13권4호
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• pp.600-613
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• 2011

The purpose of this study is to provide Torso pattern for Korean middle-aged women using 3D human body scan data. 155 women in their 40's or 50's were measured by Martin's anthropometry. Merging the data of 914 middle aged women provided by Korean agency for technology and standards, total of 1,069 subjects' data were analyzed. For data analysis, ANOVA, factor analysis and cluster analysis were done using SPSS PC+. And representative subject of each cluster was selected and they participated in 3D scanning and Torso pattern suggested for middle-aged women Torso pattern which investing the amount of ease according to each group for diffuse front interscye 30%, armscye circumference 30%, back interscye 40% using 3D human body scan data. The results of this study are as follows. Firstly, as a result of the factor analysis, the first factor was 'obesity index of body', The second factor was 'verticality size of body', The third factor was 'verticality length of upper bodice', The fourth factor was 'drop value to represent silhouette', and the fifth factor was 'physique of upper bodice'. And, middle-aged women type were classified 3 types according to the cluster analysis. Type 1(Y-type) was the long upper Torso with wide shoulder. Type 2(H-type) was flat-body type with comparatively thin upper bodice and thin lower bodice. And type 3(A-type) was the obese type with comparatively thin upper bodice and fat lower bodice. Secondly, using CAD program, point filtering was performed and approximated surface model was made. It used that generated surface smoothing corrected for abnormally extruded points and scattered points based on the curvature information. And 3D surfaces were flatted onto the plane by the internal tools of CAD program. Difference ratios of outline length and area between 3D curves and 2D plane were 0.42% and 0.54%, respectively. Third, wearing test by the sensory evaluation showed that distinct difference almost every category. The movement functionality test shows that, in all the tests which reveal significant differences, especially, 'comparison pattern A' experienced inconvenience to neck width and neck depth.

• 복식문화연구
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• 제1권1호
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• pp.33-68
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• 1993

The purpose of this paper is to survey the influence of the culture change on the dress and personal adornments, and to survey the change of factors from the August 15. 1945 to 1960, in connection with the social and cultural background, applying B. Malinowski′s "Theory of Culture Change" which means an acculturation is the change′s elements of the dress and its ornaments. It is remarkable that the dress and personal adornments of Korean women after August 15, 1945 has great change from the traditional dress of the thousands years. Through the Liveration on August 15, 1945, American military government and the establishment of the Korean government, American democracy has brought many changes on Korean society. Advancement of education, an society with developed economic life, and introduction of scientific skill have influenced on the women′s way of thinking and a style of behavior and the view of value. The acculturation, the supply of mass communication, introduction of new institution and the reorganization of the old institution, the change of the economic situation, the change of the educational system, the change of the point of value, the development of scientific skill have greatly influenced on the dress and personal adornments. Modern dress and personal adornments of Korean women has the following developing procedure. The Liberation from Japan on the 15th, of August, 1945, the stationing of American Soldiers during hte Koran War, returning of the oversea′s brethern, and the mass communication have the direct and indirect contact with western civilization, and bring the occasion of development of the modern dress of Korean women. The increase of mass communication, such as radio, TV, newspaper, magazines and the frequent fashion shows showed fine design and practical western style dress to the women. This was the real beginning of the western style dress in Korea. By the increase of employment and the improvement of the economic situation, the consumption of clothing and the adornments was increased, so that a wide variety of fashions was set, and numerous kind and form of dress came in. As the increase of the number of women students, their practical and free dress life demanded western style dress. After the Liberation from Japan, the open-door policy of sex, public morals and traditional ethics became lax, and in this disordered society, indecent expose of the body was common. By the different kind of technological development, the form, fabrics, colors and patterns in clothes were much influenced and the hair style, make up, shoes and adornments were much influenced too. As shown above, the change of the dress has the same connection with that of society and culture. This shows that the dress and personal adornments represent clearly the cultural phenomenon of the society and cultural change of the society.

• 감성과학
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• 제18권2호
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• pp.45-54
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• 2015

본 연구에서는 LED 광원에 대하여 재실자의 업무 효율성과 에너지 저감 효과를 알아보기 위한 실험을 실시하였다. 이를 위해 LED 광원의 특성인 펄 스 폭변조(PWM, pulse width modulation)와 조도(lux)를 제어하여 총 9가지의 다양한 조명환경을 구성하였다. LED 조명의 펄스변조 비율은 각각 R:G:B=1:1:1, R:G:B=4:1:5, R:G:B=8:7:7으로 하였으며, 조도는 각각 400 lx, 700 lx, 1000 lx 으로 설정하였다. 또한, 실내환경은 온도 $20{\sim}24^{\circ}C$, 습도 50~60%, 착의량 1 clo 로 설정하였다. 각각의 주어진 9개의 조명환경에서 업무 효율성과 에너지 소비에 대해 분석하였다. 업무 효율성 분석을 위해 오류검색수정 작업을 실시하였으며, 에너지 소비 분석을 위해 각 조명환경에서 누적 소비전력을 측정하였다. 제안한 조명환경을 통해 실험한 결과, 업무 효율성은 400 lx 보다 700 lx 이상에서 정확도 및 소요시간의 효율이 좋았으며, 소요시간의 경우 제안한 펄스변조 R:G:B=8:7:7 에서 가장 좋은 효율을 나타냈다. 또한, 각각의 조도에 대한 소비전력은 펄스변조 R:G:B=8:7:7 > RGB=1:1:1 > R:G:B=4:1:5의 순으로 낮게 나타났다. 따라서, 본 논문에서 제안한 펄스 폭 변조 효과가 업무효율성 및 에너지 저감에 영향을 미치는 것을 확인할 수 있었다.

• 감성과학
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• 제20권1호
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• pp.17-30
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• 2017

하이테크놀로지를 여러 가지 다른 영역과 융합하고자 하는 노력이 다양한 연구 분야에서 시도되고 있으며, 스포츠웨어를 개발함에 있어 운동선수의 운동능력을 향상시키기 위한 분야에 이러한 첨단 기술들이 도입되고 있다. 본 연구는 스포츠 훈련에 도움이 되는 동작 센싱 스마트 스포츠웨어를 개발하기 위한 기초 연구로서, 조정 동작 시 관절의 움직임을 측정할 수 있는 동작 센서를 부착하기 위한 인체상의 최적 위치를 탐색하는 것을 목적으로 한다. 본 연구에서는 일관된 동작을 반복적으로 수행할때 관절의 변화가 큰 조정을 대상 스포츠로 선정하였으며, 조정 선수의 대표 체급인 중량급과 경량급의 피험자를 선정하여 동작에 따른 피부의 변화율을 측정하여 체급별 차이를 분석하였다. 먼저, 3차원 모션캡처 시스템을 이용하여 조정 동작 시 등, 팔꿈치, 엉덩이, 무릎 부위의 피부 변화를 촬영하고, 각 마커 간 거리의 변화율을 분석함으로써 체급에 따른 차이를 보이지 않으면서 동작에 따라 피부의 변화가 큰 부분을 인체 상에 도시하였다. 이를 바탕으로 동작 센싱용 스마트 스포츠웨어를 위한 센서 부착의 가이드라인을 제시하였다.

• 한국산업정보학회논문지
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• 제24권6호
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• pp.25-34
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• 2019

가상착용기술(VTON: Virtual try-on)은 의상의 온라인 유통을 활성화를 위하여 중요한 기술이다. 그러나 3차원 그래픽스기반 방식은 의상과 인체의 3차원 정보의 확보가 필요하여 범용화에 어려움이 있고, 이러한 제약을 해소하기 위해 개발되는 이미지 기반 방식들의 연구들은 그 기술적 한계가 불명확하다. 구체적으로 VITON (Virtual image try-on) 과 CP-VTON (Content preserving VTON)등은 가능성 위주의 매우 단편적인 결과만을 제시하고 있다. 본 논문은 이미지기반 기술의 상용화의 한계를 파악하기 위해, 세 가지 대표적 방식(SCMM 기반의 비-딥러닝 방식, 딥러닝기반 VITON 과 CP-VTON에 대하여 인물의 자세 및 체형, 의상의 가려짐 정도, 의상의 특성 등에 따라 분석을 하였다. 객관적인 평가를 위하여 변형단계와 합성단계의 성능을 각각 IoU와 SSIM로 평가하였고, 상대적인 비교 분석을 하였다. 그 결과, CP-VTON이 가장 좋은 성능을 보이지만, 자세와 의상의 복잡도에 따라 성능의 한계가 크게 차이가 남을 보였다. 그 주 원인은 2차 기하변형의 한계와 GAN을 통한 합성 기술의 한계로 파악되었다.