Personalized Color System For Robust Extraction of Skin-color

DOI Web Site 7 Citations 6 References
  • Tamaki Emi
    Graduate School of Systems and Information Engineering, University of Tsukuba
  • Hoshino Kiyoshi
    Graduate School of Systems and Information Engineering, University of Tsukuba

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Other Title
  • 安定した肌色抽出のための個人別表色系(「バーチャルVR～VR技術の応用・転用・新展開」特集)
  • 安定した肌色抽出のための個人別表色系
  • アンテイシタ ハダイロ チュウシュツ ノ タメノ コジンベツ ヒョウショクケイ

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Abstract

The skin-color extraction at high accuracy and with high speed is indispensable for user interfaces where the human gestures are used as the input and cues to a system. The conventional color systems for skin-color extraction may often lose the accuracy due to the change of light conditions. When the accuracy is satisfying, the calculating speed may slow down. In this paper, therefore, the authors propose a new color system acquired by two vectors of individual persons' color distribution, where the skin-color area is extracted by a rectangle which optimally fits the skin-color ellipsoid. And the ranges in each axis are simply specified in extraction by the rectangle. This method can decrease the extraction error, as well as drastically reduce the calculation amount. The experimental results showed that the skin-color system proposed in the paper can extract the skin area at the speed of 149 fps, and at the rate of 94 % of correction, or more. Our system can also extract the human nail area.

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