Visual Information Sensing Technology. Multiple-Camera Based Hand Pose Estimation Method using Distance Transformation.

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  • Utsumi Akira
    ATR Media Integration & Communications Research Laboratories
  • Miyasato Tsutomu
    ATR Media Integration & Communications Research Laboratories
  • Kishino Fumio
    Department of Electronic, Information and Energy Engineering, Osaka University
  • Ohya Jun
    ATR Media Integration & Communications Research Laboratories
  • Nakatsu Ryohei
    ATR Media Integration & Communications Research Laboratories

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Other Title
  • 映像情報センシングのための処理技術　　距離変換処理を用いた多視点画像による手姿勢推定法
  • キョリ ヘンカン ショリ オ モチイタ タ シテン ガゾウ ニヨル シュシセイ

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Abstract

We describe a method for detecting hand position, posture, and finger bendings using multiple camera images. Stable detection can be achieved using distance transformed images. We detect the maximum point in each distance transformed image as the center of gravity (COG) point of the hand region and calculate its 3D position by stereo matching. The distance value of a COG point varies according to the angle between the camera axis and normal axis of the hand plane. Hand rotation angle can be determined in maximum likelihood estimation from the distance values in all camera images. Using the detected position and posture, the best camera for hand shape detection can be selected. This camera selection makes the hand shape detection simple and stable. This system can be used as a user interface device in a virtual environment, replacing glove-type devices and overcoming most of the disadvantages of contact-type devices.

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