Journal of Graphic Science of Japan
Online ISSN : 1884-6106
Print ISSN : 0387-5512
ISSN-L : 0387-5512
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Volume 22, Issue 3
Displaying 1-7 of 7 articles from this issue
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  • Classifying Roundnesses of Curves with Shapes of Conic Sections
    Sadao NAKAMURA, Kazuhisa SUGIYAMA
    1988 Volume 22 Issue 3 Pages 1-5
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_1
    JOURNAL FREE ACCESS
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    The ellipse angle is examined to obtain numerical values of roundness of curve. Similarly to the ellipse angle the hyperbola angle is introduced also to express the roundness values of curve. An arc is matched with a similar shape of conic section by examining changes of radiuses of curvature along the curves. The angle value of the selected conic section can represent the roundness value of the arc. Changes of radiuses of curvature of conic section can completely cover those of all types of curves. It shows a fundamental characteristic of the conic section. The roundness values are applied to four curves of fundamental functions.
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  • A study on a measuring system for human body by image prossesing
    —On approximate and estimative values by using Supper Ellipse for horizontal section of ladies' body—
    Kinue HATAKEYAMA, Naoki IIDA, Sadahiko NAGAE, Yoshitsugu NAKATANI, Tak ...
    1988 Volume 22 Issue 3 Pages 7-16
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_7
    JOURNAL FREE ACCESS
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    Recently, computers have been getting avalable for making patterns on women's wares. Generally speaking, it is quite difficult to measure lady's body, because it has more complicated surfaces than man's; such as which observed at shoulder part, breast part, waist part and so on than men's. This paper reports the construction of new measuring system; measuring human body without touching and destroying the object, analizing the data and making patterns on ladies' wares automatically with an image processing unit and a micro cmputer. Furthermore, SUPER ELLIPSE method is applied to get the data on human body's circumference length which has weight with making patterns where the error and accuracy are considered. Nontouch measuring is performed by the automatic measuring system consisted of two CCD cameras and image processing unit. Four pictures aretaken; they are upper front view, upper right side view, lower front view and lower right side view. All these pictures are proccessed by a personal computer connected with the system, calculating the necessary length automatically for making patterns. The error is to be within the allowance of JIS size table. SUPER ELLIPSE method is found to be useful for measuring ladies' body.
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  • [title in Japanese]
    [in Japanese]
    1988 Volume 22 Issue 3 Pages 17-23
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_17
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1988 Volume 22 Issue 3 Pages 25-30
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_25
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1988 Volume 22 Issue 3 Pages 31-36
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_31
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1988 Volume 22 Issue 3 Pages 37-44
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_37
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1988 Volume 22 Issue 3 Pages 45-48
    Published: 1988
    Released on J-STAGE: August 25, 2010
    DOIhttps://doi.org/10.5989/jsgs.22.3_45
    JOURNAL FREE ACCESS
    Download PDF (545K)
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