Automatic Camera Calibration Method Using Brightness Variance of a Disparity Map

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  • Ishino Ryuichi
    Communication & Information Research Laboratory, Central Research Institute of Electric Power Industry

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  • 視差画像の輝度値分散を利用したステレオカメラの位置ずれ補正法
  • シサ ガゾウ ノ キドチ ブンサン オ リヨウ シタ ステレオカメラ ノ イチズレ ホセイホウ

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Abstract

When we use a stereo camera system, we have to calibrate each camera using the pattern whose 3-dimension structure is known. In this case, some points which are extracted as a feature point from an image plane of each camera are related to the points of another camera. But feature points are not always extracted stably. Therefore some points must be corrected by hand. This has made it difficult to calibrate a stereo camera system automatically. To solve this problem, we developed an automatic camera calibration method with minization of variance of brightness value of a disparity map.

Journal

  • ITE Technical Report

    ITE Technical Report 24.49 (0), 7-12, 2000

    The Institute of Image Information and Television Engineers

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