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RESEARCH ON ACTIVE CONTOUR MODELS USING A PRIORI KNOWLEDGE OBTAINED FROM AN INITIAL CONTOUR

Research Project

Project/Area Number 14580441
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報システム学(含情報図書館学)
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

ABE Toru  Tohoku University, Information synergy Center, Associate Professor, 情報シナジーセンター, 助教授 (80222652)

Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2003: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2002: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywordsimage processing / region extraction / active contour model / a priori knowledge / shape information / symbolic description
Research Abstract

Region extraction from images is an important topic in image processing. For this issue, active contour model (ACM) has achieved considerable success.
In region extraction with ACM, a user first draws a contour C around a target region and defines its evaluation (energy) function B. This C is iteratively deformed so as to decreases B, and the deformed C that minimizes E is extracted as a target region boundary. Since naive ACM evaluates only the certainty that C is located on a region boundary, when an image has several object regions, there is no guarantee that C is deformed to correspond with the target region boundary. To solve this problem, several methods have been proposed for employing the a priori knowledge of a target region shape. However, the existing methods need the making of prototypes or training with samples, and thus they require time-consuming preparation work and impose tight restrictions on their target regions.
To overcome the difficulties in the existing methods, we propose a novel method for employing the a priori knowledge of a target region shape. The proposed method is based on an idea that an initial value of C (an initial contour Cini drawn around a target region by a user) can include the shape features of a target region. In this method, the sequence of shape features (such as corner, line, and curve) is obtained from Cini. This sequence is encoded into a symbolic description and used as the a priori knowledge of a target region shape. During region extraction procedure, by finding the optimal assignment of the symbols (shape features) to the control points of C and determining the optimal positions for these points, the a priori knowledge is reflected on the extracted region shape.

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] Toru Abe: "Clustering-based control of active contour model"Proc. of 16th Int. Conf. on Pattern Recognition, ICPR2002. vol.II. 663-667 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 松澤 悠樹: "初期輪郭線から得られる形状情報を用いた動的輪郭モデル"電子情報通信学会論文誌. J85-D-II・9. 1436-1445 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yasutaka Etou: "Corner detection using slit rotational edge-feature detector"Proc. of 2002 IEEE Int. Conf. on Image Processing, ICIP2002. vol.II. 797-800 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐々木 典則: "マルチエージェントシステムによる適応的な画像処理の実現"2003年 情報科学技術フォーラム 講演論文集. 405-406 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toru Abe: "Active contour model using a priori knowledge of region shape"Proc. of 2003 IEEE Int. Conf. on Image Processing, ICIP2003. Vol.III. 409-412 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 村松 孝俊: "エージェント化された動的輪郭モデルによる領域抽出"2003年 電子情報通信学会総合大会 講演論文集. D-12-20 (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toru ABE: "Clustering-based control of active contour model"Proc.16th International Conf.on Pattern Recognition (ICPR2002). Vol.II. 663-667 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yuki MATSUZAWA: "Active contour model using shape information obtained from initial contour"Trans.IEICE. vol.J85-D-II, no.9. 1436-1445 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yasutaka ETOU: "Corner detection using slit rotational edge-feature detector"Proc.of 2002 IEEE international Conf.on Image Processing (ICIP2002). vol.II. 797-800 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Fuminori SASAKI: "Adaptive image processing using multi-agent system"Proc.of Forum on Information Technology 2003 (FIT2003). 405-406 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Toru ABE: "Active contour model using a priori knowledge of region shape"Proc.of 2003 IEEE International Conf.on Image Processing (ICIP2003). vol.III. 406-412 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Takatoshi MURAMATSU: "Region extraction by using active contour model agents"Proc.of 2004 IEICE General Conf.. D-12-D-20 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 佐々木 典則: "マルチエージェントによる適応的画像処理手順の生成法"平成15年度 電気関係学会東北支部連合大会 講演論文集. 2J-3 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 佐々木 典則: "マルチエージェントシステムによる適応的な画像処理の実現"2003年 情報科学技術フォーラム 講演論文集. 405-406 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Toru Abe: "Active contour model using a priori knowledge of region shape"Proc.2003 IEEE Int.Conf.Image Processing, ICIP2003. III. 409-412 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 村松 孝俊: "エージェント化された動的輪郭モデルによる領域抽出"2004年 電子情報通信学会総合大会 講演論文集. D-12-20 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Toru Abe: "Clustering-based control of active contour model"Proc. of 16th Int. Conf. on Pattern Recognition, ICPR2002. vol.II. 663-667 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 松澤 悠樹: "初期輪郭線から得られる形状情報を用いた動的輪郭モデル"電子情報通信学会論文誌. J85-D-II・9. 1436-1445 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yasutaka Etou: "Corner detection using slit rotational edge-feature detector"Proc. of 2002 IEEE Int. Conf. on Image Processing, ICIP2002. vol.II. 797-800 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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