• 한국컴퓨터정보학회논문지
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• 제24권6호
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• pp.57-65
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• 2019

In this paper, we study on finding the rail space in elevators by analyzing each image captured with CCD camera. We propose a method that applies one-dimensional matched filter to the pixels of a selected search space in the vertical line at a horizontal position and decides the position with the thickness of the space being represented by a black thick line in captured images. The pattern similarity representing how strongly the associated image pixels resemble with the thick line is defined and calculated with respect to each position along the vertical line of pixels. The position and thickness of the line are decided from the point having the maximum in pattern similarity graph. In the experiments of the proposed method under different illuminational conditions, it is observed that all the pattern similarity graphs show similar shape around door area independent of the conditions and the method can effectively detect the rail space if the rails are illuminated with even weak light. The method can be used for real-time embedded systems because of its simple algorithm, in which it is implemented in simple structure of program with small amount of operations in comparison with the conventional approaches using Canny edge detection and Hough transform.

• 복식문화연구
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• 제18권6호
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• pp.1165-1178
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• 2010

This study is aimed at developing low waist slacks pattern with high satisfaction measurements and beauty for the tween generation girls. For this study, the research method was as follows. By extracting and analyzing industrial and educational slacks pattern, beautiful and motion-suitable slacks pattern will be created. This study presents the ideal slacks pattern that has great fit to tween generation girls by comparing and analyzing the previous 2 slacks pattern studies and the real clothing test. The constructed pattern in the 1st step was modified and adjusted from the best industrial patterns' the location of waist line, waist line gradient, rear waist bottom crotch, hip bottom crotch, dart length, the ease of hip girth, the fitness of rear bottom crotch line which were not well-estimated. The 2nd step was appearance and movement test based on the 1st study. In The 3rd step, the 2nd step was chosen as the final slacks study pattern for its superior appearance & movement satisfaction comparing with other patterns.

• 복식문화연구
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• 제2권1호
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• pp.93-104
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• 1994

Nowadays computer technology is being applied in various areas of apparel design. In particular, since the task of pattern making is to be performed by a set of predefined drawing rules, the effect of computer application in pattern making will be significant, There have been a large number of studies on pattern making program. For instance, the previous studies have developed computer programs for pattern making of women's wear, men's wear, children's wear, Han-Bok, etc. Most of them have focused on the development of computer program for a particular kind of apparel only and, however, have disregarded the feasibility of developing a multi-purposed computer program so that is just can be modified to adopt for various styles. For example, by widening the hem-wide of the basic H-Line skirt and then connecting its waist line and widened hem-wide, we can draw the A-Line skirt. Therefore, we have developed a program which can make a pattern for the basic skirt and can mae, with a slight change of he program, other patterns for various style as well. The objective of this paper is to identify and organize modules which will be used for developing a general pattern making computer system. This general pattern making system is a computer program by which we can draw a variety of apparel styles. This system is restricted to skirt pattern making only. there presentation scheme used in organizing these modules is an AND-OR tree, the one being often used in representing a complex problem in artificial intelligence domain.

• 대한수학회보
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• 제53권5호
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• pp.1327-1339
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• 2016

Self-organizing systems arise very naturally in artificial intelligence, and in physical, biological and social sciences. In this paper, we modify the classic Cucker-Smale model at both microscopic and macroscopic levels by taking the target motion pattern driving forces into consideration. Such target motion pattern driving force functions are properly defined for the line-shaped motion pattern and the ball-shaped motion pattern. For the modified Cucker-Smale model with the prescribed line-shaped motion pattern, we have analytically shown that there is a flocking pattern with an asymptotic flocking velocity. This is illustrated by numerical simulations using both symmetric and non-symmetric pairwise influence functions. For the modified Cucker-Smale model with the prescribed ball-shaped motion pattern, our simulations suggest that the solution also converges to the prescribed motion pattern.

• 한국의류학회지
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• 제30권2호
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• pp.207-220
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• 2006

The purpose of the study is to develop the basic pattern of casual jacket for men aged between 25 and 34. Compared to the tailored jackets, casual jackets are designed much more diverse form depending on the target customer, price range and moreover fashion trend. Therefore in order to reduce the cost and time of developing new style, pattern draft from the basic pattern is better approach rather than develop each style form the measurements every time. For men's casual jacket pattern draft, the basic pattern of fit and comfort was developed through following research procedures. 173 men were surveyed about their habit of buying and wearing of casual jackets. MDs and pattern designers of 10 casual wear brands for men were interviewed. As a starting point, 3 different basic patterns were selected. 2 patterns were from the 2 interviewed brands and the last one was the pattern of ESMOD. The 3 patterns were studied by means of comparing measurements and general styling. As a results it was found that the pattern of S brand is featuring I silhouette, the pattern of K brand is featuring H silhouette and the pattern of ESMOD is featuring Y silhouette. The results of wearing test showed that the pattern of S brand is the best among the three. They were to add ease around the chest line and waist line, to relocate the waist line and the break point, to increase the jacket length and upper arm width. The improved pattern was made of polyester for the wearing test. The wearing test showed developed pattern was improved significantly. To verify the use of developed basic pattern, two buttoned single jacket was made.

• 한국생활과학회지
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• 제16권3호
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• pp.577-585
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• 2007

This research aimed for 20 latter man whose body shape of torso alters remarkably to develop nipper pattern of running type considered characteristic of body shape of 20 latter man to keep rather balanced body shape against middle age when body shape changes extremely. 1. running type nipper pattern design. Pattern of running, lining and nipper were designed by flattening surface shell. A basis line of running pattern is completed by applying reduction ratio after 3 times of modification & complement based on surface shell. Nipper pattern is designed with design line set by a plaster cast based on running pattern line. Lining pattern is designed with lining design line set by a plaster cast based on running type outside material and nipper pattern. 2. Functional evaluation of research and commercial nipper. Functional inspection through dress test was applied 5point evaluation method and the result of functional inspection on the sight of a wearer is that research nipper(running reduction ratio 15%, nipper reduction ratio 18%) averaged more 4.8point but commercial nipper averaged less 1.8point in the aspect of 20 items such as wear sensibility, motional function and external appearance aesthetic. Research running type nipper scored high in order of motional function, looks of side, back, front and whole and wear sensibility. Functional inspection in the point of view of an observer is that research nipper(running reduction ratio 15%, nipper reduction ratio 18%) averaged over 4.8point and commercial nipper averaged under 1.9point in 17 items of external appearance beauty. Research running type nipper marked high in order of looks of back, whole, front and side.

• 대한가정학회지
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• 제39권8호
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• pp.137-154
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• 2001

This study was made to draft the tight fitting bodice pattern which horizontal and perpendicular stands are to be lightly set, with the consideration of characteristics of body shape in design of clothes. Measurement of body was conducted on 53 women in twenties, and observation was made on surface development pattern by adhesive tape addition method and gypsum method on three standard objects. In the study, bodice pattern was completed by using already made Somato- measurer, compared with existing bodice pattern, and the results are as follows. The result of the correlation analysis by body measurement shows that chest circumference has a relation to B$.$P-front neck point, side neck point, shoulder point, front interscye breadth point, and the item in spine scapulae point has relation to the item of back neck line, and front & back horizontal values. The degree of shoulder slant, width of armhole and of its depth, the amount of breast, back space, back length were shown to be directly measured from the body. In surface development pattern, tight-fit bodice pattern necessary to the breast volume and back space were shown to be investigated and these volume have to be given in setting up basic line for clothes design together with body measurement value. The result of sensory evaluation for appearance test on fitness shows higher value of research bodice including line of shoulder line, front and back interscye breadth, chest circumference, waist circumference, armhole circumference and of its depth, compared with the research bodice in most items. The result of this study is seen showing high effectiveness for the basic data to design the ready-made dress of high sensitivity of high value added tat.

• 산업기술연구
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• 제19권
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• pp.179-187
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• 1999

The computer pattern sewing machine is an automatic sewing machine that is controlled by an input pattern. Even a novice can run this machine for various tasks fast and reliably such as sewing a button, a belt ring and an airbag, etc. The pattern processing software, which is the main software of this machine, is for editing and modifying pattern data by online teaching or off-line editing, setting up parameters, and calculate a moving distance of working area on the x-y axes. In this paper we propose an algorithm to generate pattern data for sewing by simplifying image data. The pattern data are composed of outline data like dot, line, circle, arc, curve, etc. We need converting this data into sewing data which involve sewing parameter, moving distance of working are an the x-y axes, thread, spindle speed.

• 대한전자공학회논문지TC
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• 제40권10호
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• pp.150-158
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• 2003

라인 소스에 의한 빔 패턴 합성 문제에서 소스 분포함수와 빔 패턴간의 관계는 푸리에 변환쌍으로 표현 될 수 있다. 본 연구에서는 원하는 lobe형 빔 패턴을 만족시키는 라인 소스 분포함수를 반복 샘플링을 통한 비선형 역변환법을 사용하여 합성하는 일반적인 방법을 제안한다. 이 방법은 유전 매질에 TE 및 TM 평면파 입사시 원하는 역산란 반사계수를 갖도록 하는 연속적으로 분포된 유전율 합성에 적용될 수 있으며, 임의 반사계수를 갖는 전송선로 합성에도 적용될 수 있는 장점을 가진다. 대역저지 공간 필터 및 분산 특성을 갖는 전송선로 필터에 적용, 분석하므로서 제안한 방법의 타당성을 보인다.

• 한국광학회지
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• 제8권5호
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• pp.403-409
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• 1997

다양한 특징들을 광학적으로 병렬추출하여 패턴인식을 수행하는 시스템을 제안하고 실험하였다. 추출하려는 특징은 6개의 방향선소들 및 선소특징만으로 구별되지 않는 패턴들에 대한 공분산행렬의 고유벡터들이다. 이 시스템은 크게 특징추출부와 패턴인식부로 구성된다. 전자는 여러 특징을 병렬적으로 추출하기 위해 다중 Vander Lugt 필터를 사용하여 광학적으로 구현되었으며, 후자는 이들 추출된 특징들을 사용하여 패턴인식이 수행되도록 컴퓨터에서 구현되었다. 패턴인식 방법으로는, 추출된 특징을 인공신경망에 학습을 시키는 방법과 단순히 선소들의 논리적인 개수를 사용하는 방법, 두 가지가 각각 사용되었다. 여기서는 선소들로만 구성된 15개의 영문자 패턴들에 대해 실험하였고 그 실험결과를 보고한다.