Yoshio Yanagihara Minoru Tanaka Shinichi Tamura Kokichi Tanaka Generation of radar echo images from a contour map. 114-128 1983 24 Computer Vision, Graphics, and Image Processing 1 http://dx.doi.org/10.1016/0734-189X(83)90023-3 db/journals/cvgip/cvgip24.html#YanagiharaTTT83