The Journal of the Society for Art and Science
Online ISSN : 1347-2267
ISSN-L : 1347-2267
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Volume 14, Issue 1
Displaying 1-3 of 3 articles from this issue
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Papers for Special Issues "NICOGRAPH International 2014"
  • Visualization of Pressure and Stress Distributions in Aortic Valve Simulation by Considering Heart's Pulsation and Axial Flow
    Nobuhiko Mukai, Yusuke Abe, Youngha Chang, Kiyomi Niki, Shuichiro Taka ...
    Article type: research-article
    2015 Volume 14 Issue 1 Pages 1-8
    Published: March 25, 2015
    Released on J-STAGE: April 19, 2023
    DOIhttps://doi.org/10.3756/artsci.14.1
    JOURNAL FREE ACCESS
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    We have performed the aortic valve simulation by considering heart's pulsation and axial flow. In the previous simulation, blood flows from the left ventricle into the aorta at a velocity changing sinusoidally. The blood in the aorta, however, flows by the heart's pulsation, which makes a different type of velocity cycle from sinusoidal wave, and also the blood flows in a swirl, which is called axial flow. The simulation has been performed with particle method, and the pressure inside the aorta as well as the stress on the aortic wall and the aortic valve have been visualized by using computer graphics techniques. As the result of the simulation, we have found that there are heavy stresses at the bottom of the aortic valve.
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Papers
  • Development of a Skirt Pattern Design System Based on 3D Human Body Measurement Data Analysis
    Takami Yamamoto, Masanori Nakayama, Rui Katsura, Akira Sakamoto, Issei ...
    2015 Volume 14 Issue 1 Pages 9-19
    Published: March 25, 2015
    Released on J-STAGE: April 19, 2023
    DOIhttps://doi.org/10.3756/artsci.14.9
    JOURNAL FREE ACCESS
    Supplementary material
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    This paper presents a design system encompassing the process from high-precision design to the production of a skirt prototype based on the deployment of design by analysis of 3D body data gathered with a 3D scanner. This system is characterized in that (1) it allows the generation of accurate reference cross-sectional data from polygonal data of the body according to an intended design, (2) automatic drawing functions by the draping method using a reference cross-sectional data, and (3) production of patterns capable of accommodating various body types , As a result, individual 3D body data analysis can be performed rapidly and wear comfortable skirt patterns that fit the body contours can be obtained in a shorter period of time.
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  • Generating Sand Picture-like Images by using Iterative Enhancement Bilateral Filter
    Toru Hiraoka, Minoru Kumano, Kiichi Urahama
    Article type: research-article
    2015 Volume 14 Issue 1 Pages 20-25
    Published: March 25, 2015
    Released on J-STAGE: April 19, 2023
    DOIhttps://doi.org/10.3756/artsci.14.20
    JOURNAL FREE ACCESS
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    We propose a non-photorealistic rendering method for generating sand picture-like images from photographs. The proposed method is performed in two steps. First, images with flow patterns created from finger tracing are generated with an anisotropic filter. Second, sand-pattern images are generated with iterative enhancement bilateral filter which performs the iterative calculation of bilateral filter and unsharp mask. In order to evaluate the performance of our method for generating sand picture-like images, we conduct experiments using image of Lena.
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