• 한국의류학회지
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• 제47권1호
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• pp.171-190
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• 2023

This study aims to develop algorithms for automatic extraction landmarks from the lower body of women aged 20-54 using the Grasshopper programming language, based on 3D scan data in the 8th SizeKorea dataset. First, 11 landmarks were defined using the morphological features of 3D body surfaces and clothing applications, from which automatic landmark extraction algorithms were developed. To verify the accuracy of the algorithm, this study developed an additional algorithm that could automatically measure 16 items, and algorithm-derived measurements and SizeKorea measurements were compared using paired t-test analysis. The statistical differences between the scan-derived measurements and the SizeKorea measurements were compared, with an allowable tolerance of ISO 20685-1:2018. This study found that the algorithm successfully identified most items except for the crotch point and gluteal fold point. In the case of landmarks with significant differences, the algorithms were modified. This study was significant because scan editing, landmark search, and measurement extraction were successfully performed in one interface, and the developed algorithm has a high efficiency and strong adaptability.

• 한국BIM학회 논문집
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• 제13권2호
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• pp.1-15
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• 2023

Since the 1960s, the Korean Peninsula, which consists of 77.4 of the country's land and mountains, has seen a surge in demand for buildings due to population concentration due to urbanization and industrialization. Since then, the development of slopes has been inevitable due to the concentration and expansion of the city's population. When building a building on a slope, it is important to set the height of the surface. In this case, the means of regulating buildings in construction-related laws, such as the building closure ratio, floor area ratio, number of floors and total floor area of buildings, have an overall effect on buildings through the height of the surface. In the Korean Building Act, the setting of the height of the ground affects the calculation of the building height limit standard and the calculation of the underground floor, and it takes a long time to calculate. Therefore, the time required for attempts to change various design plans of buildings increases. The purpose of this study is to speed up the time required to calculate the weighted average of the surface when constructing buildings on slopes. In addition, the existing calculation process allows various design attempts compared to the same time given.

• 한국의류산업학회지
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• 제25권5호
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• pp.603-614
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• 2023

Body shape is the most influential factor in determining the quality of clothing fit. Women's body shape begins to change significantly in their mid-30s; therefore, this study aimed to classify and analyze the torso shapes of women aged 35-54 years. This study selected 200 3D body scans of women from the 8th Size Korea Survey database (2021). Using the Grasshopper algorithm developed in a previous study, 17 landmarks were automatically detected and 57 measurement values were generated. Using principal component analysis, 11 components (overall body size, upper body length, back protrusion, upper body slope, neck position, neck inclination, hip length, bust prominence, abdominal prominence, shoulder slope, and buttock prominence) were extracted. Three torso types were identified using K-means cluster analysis. The three body types were significantly different on nine component scores. Among the three torso types, Type 1 (37.5%) has the longest upper body and the flattest back and hips. Type 2 (31.0%) has the most curved back and forward upper body. Its abdomen is the flattest, and its shoulders are the most sloped. Type 3 (31.5%) has the shortest upper body, the most protruding hips, and the largest overall body size. This paper proposes two discriminant functions for identifying a new person's torso type.

• 한국조경학회지
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• 제49권2호
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• pp.1-16
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• 2021

조경의 설계 행위는 설계가의 사고체계 내에서 형성되는 개념과 그것이 형상화되는 구체적인 재현 그리고 이를 실질적인 재료로 구축하는 일련의 과정으로 이루어지며, 이러한 디자인 프로세스는 4차 산업혁명 시대의 컴퓨터 기술과 IT 생태계의 비약적인 발전으로 많은 변화를 마주하고 있다. 컴퓨터 테크놀로지는 산업 초기에 수학적 계산(calculation)과 입력 데이터의 시각적 표현(graphic representation on display) 등 비교적 단순한 목적으로 개발되었다. 하지만 ibm과 매킨토시(macintosh)를 시작으로 개인용 컴퓨터(personal computer)의 성공적인 보급 이후 프로그램 언어와 하드웨어가 급속히 발전하고, 알고리즘(algorithm) 및 응용 소프트웨어가 전문화되면서 컴퓨터의 활용 목적이 사회 전반에 걸쳐 매우 다양해졌다. 본 연구는 이러한 디지털 사회 맥락의 변화를 바탕으로 컴퓨테이셔널 디자인(computational design), 파라메트릭 디자인(parametric design) 및 알고리즘 디자인(algorithm design) 등의 새로운 설계 방법들이 조경 설계 과정에서 어떠한 기능과 역할을 할 수 있는지에 관한 현황 및 쟁점을 진단하였으며, 그중 최근 가장 주목받는 파라메트릭 테크놀로지를 적극적으로 이용하는 디자인 방법론에 집중해 연구를 진행했다. 우선 현대 조경 및 건축 전반에서 파라메트릭 디자인의 주요 개념 및 특징들에 대해 살펴 논의의 근거를 마련했다. 그리고 이를 바탕으로 조경 분야에서 파라메트릭 디자인 활용에 관한 선행 연구를 분석하고, 조경 설계 회사들의 실제 활용 현황에 대해 분석했다. 그 결과, 조경 분야에서 파라메트릭 디자인 활용에 관한 연구는 연구의 수나 다양성 측면에서 타 분야와 비교했을 때 아직 충분한 논의가 진행되지 않은 것을 확인할 수 있었고, 사용 현황 분석에서는 최근 국외 조경 회사들을 중심으로 새로운 테크놀로지를 적극적으로 활용하려는 다양한 움직임이 조사되었다. 마지막으로 이러한 논의를 바탕으로 조경 설계 분야에서 파라메트릭 디자인 활용의 구체적인 사례 및 추후 다양한 가능성에 대해 검토했다.