A Technique for Specifying Region of Interest (ROI) in the Vector Field Based on 3D LIC

• SAKAI Koji

  Graduate School of Software and Information Science, Iwate Prefectural University

• KOYAMADA Koji

  Academic Center for Computing and Media Studies, Kyoto University

• SAKAMOTO Naohisa

  Academic Center for Computing and Media Studies, Kyoto University

• MATSUDA Koichi

  Graduate School of Software and Information Science, Iwate Prefectural University

• DOI Akio

  Graduate School of Software and Information Science, Iwate Prefectural University

Bibliographic Information

Other Title

• 三次元LICに基づくベクタ場の興味領域制限可視化手法
• 3ジゲン LIC ニ モトヅク ベクタジョウ ノ キョウミ リョウイキ セイゲン カシカ シュホウ

Abstract

Line integral convolution (LIC) is an effective and powerful technique for generating images from vector fields. In the 3D-LIC, it is very important to select an adequate region of interest (ROI) in the vector field. A way for specifying ROI is to use a surface defined in the vector field. Another way is to use a significance setting that defines a ROI related values at each point in the vector field. To represent an anisotropic vector field around a vortex center in an understandable way, we introduced a time-oriented significance setting. Our technique for specifying ROI is to use a passage-time for a mass-less particle to travel from near a vortex center to a pixel location.<br>  In our technique, what we call “restricted LIC technique”, we refer to the passage-time buffer before we start the convolution process at a pixel location. The original RLIC technique is based on 2 -D. In this paper, we extend this technique to 3 -D. To confirm the effectiveness of our technique, we use an anisotropic swirl vector field and construct two types of significance settings, which are a distance-oriented and a time-oriented setting. We will show the difference in the resulting images between a distance-oriented and time-oriented significance settings.<br>

Journal

• The Journal of the Institute of Image Electronics Engineers of Japan

  The Journal of the Institute of Image Electronics Engineers of Japan 32 (6), 815-824, 2003

  The Institute of Image Electronics Engineers of Japan

Keywords

• Line Integral Convolution
• Region of interest
• Restriction
• Visualization
• Vector field

Details

• CRID: 1390001204612097920
• NII Article ID: 130004437431
• NII Article ID: 10011891334
• NII Book ID: AN00041650
• DOI: 10.11371/iieej.32.815
• ISSN: 13480316
• ISSN: 02859831
• NDL BIB ID: 6793686
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6793686
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed