Raster-to-vector conversion by line fitting based on contours and skeletons. - Osamu Hori; Satohide Tanigawa (ICDAR, 1993)

Precise line detection from an engineering drawing using a figure fitting method based on contours and skeletons. - Satohide Tanigawa; Osamu Hori; Shigeyoshi Shimotsuji (ICPR (2), 1994)