For legal purposes there is a requirement for the validation of signatures and handwritten documents. A helpful method in this respect is the so-called superposed strokes analysis, based on the observation of some characteristics in the writing, such as some letters and their dynamics. This paper introduces a promising new technique for superposed strokes analysis based on conoscopic holography. Through a non-contact 3D measure a 3D profile is created of the superposed strokes that allows the writing dynamics to be determined, such as, for example, if a stroke was drawn clockwise or counterclockwise. We propose a 3D analysis by an opto-electronic system, in order to improve the graphology analysis for off-line signature verification.

SCHIRRIPA SPAGNOLO, G., Simonetti, C., Cozzella, L. (2004). Superposed strokes analysis by conoscopic holography as an aid for a handwriting expert. JOURNAL OF OPTICS. A, PURE AND APPLIED OPTICS, 6, 869-874 [10.1088/1464-4258/6/9/009].

Superposed strokes analysis by conoscopic holography as an aid for a handwriting expert

SCHIRRIPA SPAGNOLO, Giuseppe;
2004

Abstract

For legal purposes there is a requirement for the validation of signatures and handwritten documents. A helpful method in this respect is the so-called superposed strokes analysis, based on the observation of some characteristics in the writing, such as some letters and their dynamics. This paper introduces a promising new technique for superposed strokes analysis based on conoscopic holography. Through a non-contact 3D measure a 3D profile is created of the superposed strokes that allows the writing dynamics to be determined, such as, for example, if a stroke was drawn clockwise or counterclockwise. We propose a 3D analysis by an opto-electronic system, in order to improve the graphology analysis for off-line signature verification.
SCHIRRIPA SPAGNOLO, G., Simonetti, C., Cozzella, L. (2004). Superposed strokes analysis by conoscopic holography as an aid for a handwriting expert. JOURNAL OF OPTICS. A, PURE AND APPLIED OPTICS, 6, 869-874 [10.1088/1464-4258/6/9/009].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/134010
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