• Title/Summary/Keyword: Moir Photography

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A Study on the Wearing Silhouette of Jackets According to the Mechanical Properties and Hands of 3 types of Fabrics (직물의 역학적 특성 및 태에 따른 재킷의 착의 실루엣 연구)

  • 배정숙;임지영
    • Journal of the Korean Home Economics Association
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    • v.40 no.6
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    • pp.185-195
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    • 2002
  • This study was carried out to investigate the wearing silhouette of jackets according to the mechanical properties, primary hand value and total hand value of the 3 types of wool fabrics. Wool/PET(50/50), wool/PET(80/50) and wool(100%) fabrics were used as test specimens. Mechanical properties of specimens were measured by KES-FB system and primary hand value and total hand value were calculated by equation KN-203-LDY. We made three experimental jackets based on the precious jacket pattern and used Moir Photography to measure the amounts of space between the jacket clothes and body surface from the overlap cross section map. The results were as follows: 1) In mechanical properties, woo/PET(80/20) fabric showed higher bending and shear rigidity. 2) In evaluation of primary hand and total hand, wool 100% fabric showed higher NUMERI and FUKURAMI hand and total hand value. 3) From the reset of Moir Photography, the wearing shapes of the experimental jackets were influenced by the characteristics of fabrics. Except for the hip part, the garment ease of wool/PET(80/20) fabric was estimated more highly.

A Study on the Variation of the Skin Surface According to Arm Movement by $Moir\'{e}$ Photography Method -In the area of uppearm and shoulder blade- ($Moir\'{e}$ Photography법에 의한 동작시 체표면 형태 변화에 관한 연구 -상지 및 견갑골 부위를 중심으로-)

  • Kim Haekyung;Cho Jungmee;Suh Chuyeon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.14 no.4 s.36
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    • pp.292-304
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    • 1990
  • The surface change of upperarm and shoulder blade area are caused by the extensive upper limb movement, thus it is necessary to measure the amount of change for constructing the clothing. Moire photography was taken after plastic casters of upperarm and shoulder blade area was prepared. 1. For the shoulder blade area, subjects showed the same change of surface area for the various limb positions, wherease, for the upperarm only at the $0^{\circ}\;and\;180^{\circ}$ limb position, same change was observed. 2. As the movement of the upperarm was increased, surface area of axillary part was increased and that of shoulder part was decreased. 3. To make a bodice pattern, the minimum size of the back with the ease were $\frac{B}{4}$+3.13 cm R for normal wear and $\frac{B}{4}$+5.75 cm for active wear. 4. As the movement of the arm was increased, the cross section for the upperarm were changed to elliptical shape. 5. For each horizontal basic line, there was a positive correlation between the amount of change of shoulder blad area and that of upperarm area.

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Optimized Optomechanical Anti-Aliasing Filter for Digital Camera Photography

  • Lee, Sang Won;Chang, Ryungkee;Moon, Sucbei
    • Journal of the Optical Society of Korea
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    • v.19 no.5
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    • pp.456-466
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    • 2015
  • We investigated an anti-aliasing (AA) filter for digital camera photography by which the excessively high-frequency components of the image signal are suppressed to avoid the aliasing effect. Our optomechanical AA filter was implemented by applying rapid relative motions to the imaging sensor. By the engineered motion blur of the mechanical dithers, the effective point-spread function (PSF) of the imaging system could be tailored to reject the unwanted high-frequency components of the image. For optimal operations, we developed a spiral filter motion protocol that could produce a Gaussian-like PSF. We experimentally demonstrated that our AA filter provides an improved filtering characteristic with a better compromise of the rejection performance and the signal loss. We also found that the pass band characteristic can be enhanced further by a color-differential acquisition mode. Our filter scheme provides a useful method of digital photography for low-error image measurements as well as for ordinary photographic applications where annoying $moir{\acute{e}}$ patterns must be suppressed efficiently.

A Study on the Feasibility of the 3D Scanning Method of Body Measurement and Wearing Evaluation (3D Scanner를 이용한 인체계측방법 및 플레어스커트의 착의형태평가방법에 관한 연구)

  • 김혜경;석은영;서추연
    • Journal of the Korean Society of Clothing and Textiles
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    • v.24 no.6
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    • pp.895-906
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    • 2000
  • The study planned to testify the accuracy of the 3D scanner through analyzing the human body measurement method and the evaluation of flare skirt with 3D scanner. The results obtained from this study were as follows; First, the results of measurement for the dress form and human body by 3D scanner were more accurate than one or two dimensional measurement method. Second, from the results of the scan for the flare skirts as worn the human body, we could obtain very accurate horizontal section map. Third, in the clothing ergonomics viewpoint, the accuracy of the 3D scanner was very excellent and its utility was higher than that of the moir photography method. Therefore, the 3D scanner is very useful for the human body measurement and the wearing evaluation. In a nutshell, this study illustrates that we have to develop a program of automatic human body measurement system which will enhance the application of the 3D scanner.

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