|
|
Research of Time Effects on Microscopic Results of Identification #br#
of the Sequence between Stamps and Handwriting#br#
WANG Changliang, LÜ Chen, LU Yan, LIU Xiaoying, GU Yuqing, ZHOU Guanglei, LI Biao
2022(3):
63-69.
Objective Identification of the sequence between stamps and strokes is one of the key issues in the field of document inspection, and it is affected by many factors, e.g. the combination of pigments, etc. This paper focused on the influence of time factors on the identification results after the crossing between stamps and handwriting dicuments, using microscopy methods. Theoretical support was provided for identification of the sequence between stamps and strokes in this paper. Methods The microscopy was employed to conduct twice inspection on the same crossing position of the different combination of the photosensitive stamps and handwriting document, the atomic stamps and handwriting document, as well as the inkpad stamps and handwriting document, and each was lasted for 30 months. Then each changes between the former and later pictures were investigated. Results Different combinations of the sequences were formed, among the photosensitive stamps, atomic stamps, inkpad stamps, handwriting with black pen, handwriting with blue ballpoint pen, handwriting with blue black pen, and handwriting on backing carbon paper. There were no obvious changes for the twice pictures of all the combinations of the sequences above, except that the color of the handwriting with the blue black pen was darker and few parts of the inkpad stamps were fallen off. However, obvious changes appeared on the combinations of the sequences between the photosensitive stamps and the handwriting on carbonless copy paper, the atomic stamps and the handwriting on carbonless copy paper, as well as the inkpad stamps and the handwriting on carbonless copy paper. The handwritings on carbonless copy paper became lighter or even disappeared. Conclusion Different combinations of the sequences were formed, among the photosensitive stamps, atomic stamps, inkpad stamps, handwriting with black pen, handwriting with blue ballpoint pen, handwriting with blue black pen, handwriting on backing carbon paper, and handwriting on carbonless copy paper. There were no obvious changes for all the combinations of the sequences, except for the combination between inkpad stamps and the handwriting on carbonless copy paper. There were obvious changes between the former and later tests for the different kinds of combination of carbonless copy paper and inkpad oil. Furthermore, for the second test, the identifications also could not be performed due to the lighter or even disappeared handwriting on the carbonless copy paper. The influences for identification of the sequence between stamps and handwritings were great.
Related Articles |
Metrics
|
