六角形サンプリングを利用した画像内の回転に依存しない顔の検出

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概要

• 論文の詳細を見る

• If a circular mask is put on a human face to cover its main parts (an eye, a nose and a mouth), the content is invariant with the rotation in image planes. This invariance can be computed by the magnitude spectrum of Fourier transformation with polar coordinate systems. The correlation and rotation angle compared with a trained face model can further be computed based upon phase correlation method. However, the computation is necessary to carry out polar coordinate transformation at every position of an image for every face-finding processing when we use a normal rectangular input lattice. In this paper, we take advantage of the characteristics of hexagonal lattice, sample an input image of rectangular lattice by hexagonal lattice, approximate the circular mask with a hexagonal one, and find a face independent of its rotation in an image plane.

• 一般社団法人映像情報メディア学会の論文
• 2004-04-01

著者

• Konno Kouichi

  Faculty Of Engineering Iwate Univ.

• Li Shigang

  Faculty Of Engineering Iwate University

• Kaimori Kouichiro

  Faculty of Engineering, Iwate University

• Kaimori Kouichiro

  Faculty Of Engineering Iwate University

関連論文

• POINT CLOUD REGISTRATION BASED ON FEATURE LINES DERIVED FROM DEPTH DIFFERENCE(International Workshop on Advanced Image Technology 2005)
• A STUDY OF SUBDIVISION METHOD TO THREE AND FIVE SIDED FACES BASED ON REGULAR POLYGON(International Workshop on Advanced Image Technology 2009)
• 六角形サンプリングを利用した画像内の回転に依存しない顔の検出

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