500-fps face tracking system

  • Authors:
  • Idaku Ishii;Tomoki Ichida;Qingyi Gu;Takeshi Takaki

  • Affiliations:
  • 1-4-1 Kagamiyama, Higashi-Hiroshima, Japan 739-8527;1-4-1 Kagamiyama, Higashi-Hiroshima, Japan 739-8527;1-4-1 Kagamiyama, Higashi-Hiroshima, Japan 739-8527;1-4-1 Kagamiyama, Higashi-Hiroshima, Japan 739-8527

  • Venue:
  • Journal of Real-Time Image Processing
  • Year:
  • 2013

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Abstract

In this paper, we propose a high-speed vision system that can be applied to real-time face tracking at 500 fps using GPU acceleration of a boosting-based face tracking algorithm. By assuming a small image displacement between frames, which is a property of high-frame rate vision, we develop an improved boosting-based face tracking algorithm for fast face tracking by enhancing the Viola---Jones face detector. In the improved algorithm, face detection can be efficiently accelerated by reducing the number of window searches for Haar-like features, and the tracked face pattern can be localized pixel-wise even when the window is sparsely scanned for a larger face pattern by introducing skin color extraction in the boosting-based face detector. The improved boosting-based face tracking algorithm is implemented on a GPU-based high-speed vision platform, and face tracking can be executed in real time at 500 fps for an 8-bit color image of 512 脳 512 pixels. In order to verify the effectiveness of the developed face tracking system, we install it on a two-axis mechanical active vision system and perform several experiments for tracking face patterns.