θ-ρパラメータによる多角形の物体検出 Object Detection Using Straight Line Matching in θ-ρ Space

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The contours of many industrial parts contain straight lines and positions of the lines are therefore useful information for object detection. This paper presents a matching technique of straight lines in <i>θ</i>-<i>ρ</i> space. Any lines in 2D space are represented with parameters <i>θ</i> and <i>ρ</i> by Hough transform. To find an object is to find combination of line parameters in <i>θ</i>-<i>ρ</i> space. Our matching method contains edge detection, line detection and matching processes. At first, we perform edge detection for model and scene image to detect contour of objects. Next, we extract the straight lines using Hough transform for provided edge image. Then in the matching process, we perform matching with parameters of straight lines. Matching process contains <i>θ</i> matching, <i>ρ</i> matching and pose estimation. In the <i>θ</i> matching, we use the relative <i>θ</i> values of corresponding lines. In the <i>ρ</i> matching, we compute parameters of transfer and deviations of <i>ρ</i> values. Finally, in the pose estimation we compute transfer parameters using corresponding intersection points of the straight lines. The experimental results show our method is robust for rotation, occlusion and scaling of objects.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society  

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 128(4), 600-606, 2008-04-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021132077
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854221
  • NDL 記事登録ID
    9451414
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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