Estimation of home-address numbers on the basis of relationships and directions among house blocks
Takashi Watanabe, Takamasa Shimasaki · 2002
To extract address information automatically from house map images is an important subject for the construction of house databases which support various kinds of regional services for residents. The extraction procedure of home-address numbers can usually be implemented by character recognition techniques. However, it is difficult for many character recognition methods to distinguish distorted or noise-overlapped home-address numbers precisely. To cope with this difficulty, we address a complementation method to infer indeterminate home-address numbers, using already-established home-address numbers of neighboring house blocks. Our method first estimates the address difference among home-address numbers on the basis of a house-block layout pattern, and then infers the indeterminate home-address number from adjacently-surrounding house blocks. We also evaluate our method through experiments.