Study on Revealing Pen Pressure Features of Signatures
Liu Nin · Zhongguo sifa jianding · 2014
Objective To establish effective methods of extracting pen pressure features for the identification of signatures. Methods To portray pen pressure apart from other handwriting features, five methods were experimentally investigated, including stereomicroscopy with oblique lighting, infrared imaging with oblique lighting, electrostatic detection apparatus, three-dimensional reconstruction and confocal laser scanning microscopy. Results Each of the five methods has advantages and disadvantages. Conclusion Questioned document examiners should use as many approaches as possible to utilize the pen pressure features, so as to improve the reliability of the signature examination results.