A new approach to document analysis based on modified fractal signature.

Yuan Yan Tang Hong Ma Xiaogang Mao Dan Liu Ching Y. Suen A new approach to document analysis based on modified fractal signature. 567-570 1995 ICDAR http://computer.org/proceedings/icdar/7128/vol_2/71280567abs.htm db/conf/icdar/icdar1995-2.html#TangMMLS95