Interpretation of Printed Forms for Blind People

A system is presented enabling blind people to understand and ll in printed forms. Text and graphic components are separated from each other, the rst one presented by a Braille-line or alternatively via synthetic speech and the second one by a special swelling paper supplemented with markers for text events and markers for recognized ll in places. Furthermore a new method for the interpretation of complex structured images is described, which is used in the application mentioned above. This method takes advantage of a compositorial hierarchy of objects to be recognized and makes use of models given as relational structures. A convenient language for model formulation is introduced. First results are demonstrated.