A framework for document pre-processing in forensic handwriting analysis

摘要

We propose an open layered framework, which might be adapted to fulfill sophisticated demands in forensic handwriting analysis. Due to the contradicting requirements of processing a huge amount of different document types as well as providing high quality processed images of singular document classes, neither a standardized queue of processing stages and fixed parameter sets nor fixed image operations are qualified for such a framework concept. The open layered framework, proposed in this paper, provides adaptation abilities at the parameter level, the operator level and the algorithm level. Moreover, an embedded module that uses genetic programming might generate specific filters for background removal on the fly. In the following the layered framework will be presented, aspects of the implementation and results of its application will be given.