Integrated text and line-art extraction from a topographic map

摘要

Our proposed approach to text and line-art extraction required accurately locating a text-string box and identifying external line vectors incident on the box. The results of extrapolating these vectors inside the box Are passed to an experimental single-font optical char- Acter reader(OCR) program, specifically trained for the Font used for street labels. In the second, more com- Prehensive, experiment an operator marks these using a Graphical user interface.