Automatic layout recycling based on layout description and linear programming. - Yuji Shigehiro; Takashi Nagata; Isao Shirakawa; Itthichai Arungsrisangchai; Hiromitsu Takahashi (IEEE Trans. Comput. Aided Des. Integr. Circuits Syst., 1996)

Extracting circular road signs using specific color distinction and region limitation. - Daisuke Matsuura; Hitoshi Yamauchi; Hiromitsu Takahashi (Syst. Comput. Jpn., 2007)