バーチャルスタジオのための投影変換に不変な特徴を用いたカメラパラメータ抽出  [in Japanese] Extraction of Camera Parameters Using projective invariance for Virtual Studio  [in Japanese]

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Author(s)

    • 韓 瑞元 Han SeoWon
    • 韓国全北国立大学大学院工科大学電子工学科:東京工業大学大学院情報理工学研究科計算工学専攻 Graduate School of Engineering of Electronics, Chonbuk National University KOREA : Graduate School of Information Science & Engineering, Tokyo Institute of Technology
    • 中嶋 正之 NAKAJIMA Masayuki
    • 東京工業大学大学院情報理工学研究科計算工学専攻 Graduate School of Information Science & Engineering, Tokyo Institute of Technology

Abstract

Virtual Studio currently uses cromakey method in which a image is captured, and blue portion of that image is replaced by Computer Graphics image or real image. The replaced image must be changed according to the camera motion. This paper proposes a method to extract camera parameters (camera position, rotation and focus) using recognition of pentagonal patterns. At first, we find matching points of two projective images using invariable features of pentagon. Then, we calculate the projective transformation of two projective images and camera parameters using matching points. Simulation results indicate that camera parameters are calculated easily compared with conventional methods.

Journal

  • ITE Technical Report

    ITE Technical Report 21.28(0), 49-54, 1997

    The Institute of Image Information and Television Engineers

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Codes

  • NII Article ID (NAID)
    110003690568
  • NII NACSIS-CAT ID (NCID)
    AN1059086X
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1342-6893
  • Data Source
    CJP  CJPref  NII-ELS  J-STAGE 
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