Ninth International Workshop on Frontiers in Handwriting Recognition (2004)
Kokubunji, Tokyo, Japan
Oct. 26, 2004 to Oct. 29, 2004
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/IWFHR.2004.59
Katrin Franke , Fraunhofer Institute for Production Systems and Design Technology
Steffen Rose , Fraunhofer Institute for Production Systems and Design Technology
The paper describes our studies on the influence of physical and biomechanical processes on the ink trace and aims at providing a solid foundation for enhanced signature analysis procedures. By means of a writing robot, simulated human handwriting movements are considered to study the relation between writing process characteristics and ink deposit on paper. Since the robot is able to take up different writing instruments like pencil, ballpoint or fine line pen, the type of inking pen was also varied in the experiments. The results of analyzing these artificial ink traces contribute to a better understanding of the underlying interaction processes and allowfor the formulation of a so-called ink-depositionmodel (IDM). Particularly, we present IDMs that analytically describe the relation of applied pen tip force and relative ink intensity distribution for solid, viscous and fluid ink types. These IDMs might be employed in computer-based analysis of ink trace line quality to recognize skilled forgeries.
forensic handwriting examination, pseudodynamic signature analysis, line quality, stroke phenomena, writing instruments, robotic writing trace synthesis
S. Rose and K. Franke, "Ink-Deposition Model: The Relation of Writing and Ink Deposition Processes," Ninth International Workshop on Frontiers in Handwriting Recognition(IWFHR), Kokubunji, Tokyo, Japan, 2004, pp. 173-178.