TY JOUR TI Data preparation methods for recovering three-dimensional structure of the scene KW camera-obscura KW SURF (Speeded Up Robust Feature) KW singular points KW three-dimensional structure KW Kalman filter KW Canny filter KW non-maxima suppression KW scene KW gradient. JO Vestnik of Don State Technical University AU Taranenko, S.. AU Kovalev, O.. PY 2014 IS 14 PB Don state technical University