A method and system for detecting ink types of documents
A technology for detecting documents and ink marks, applied in the direction of color/spectral characteristic measurement, fluorescence/phosphorescence, material excitation analysis, etc., can solve the problems of work impact, increase the detection cycle, cannot achieve fast, efficient and accurate, and save detection Time, the effect of reducing the error
Active Publication Date: 2017-03-08
GUANGDONG NANTIAN JUDICIAL APPRAISAL FIRM
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[0003] In the prior art, the comparison and analysis of ink types between comparison samples and inspection materials often need to be realized manually through professional equipment and methods. Different types of ink marks can only obtain one or a few types of ink marks in practical applications, which cannot effectively solve the problem of distinguishing various types of ink marks, and cannot achieve the purpose of speed, efficiency and accuracy, especially in In more complex cases, the detection cycle will often be increased, which will have a greater impact on the later work; on the other hand, there will also be certain errors in manual comparisons, which will affect the detection accuracy of the time when the document is made
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[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0043] like figure 1 As shown, in the embodiment of the present invention, a method for detecting the ink type of a document is provided, and the method includes:
[0044] Step S100. Obtain the spectral data and multi-light source detection results of the ink sample of the document to be inspected, and process the obtained spectral data and multi-light source detection results to obtain one or more characteristic data; wherein, the characteristic data is data formed by feature items including spectroscopic spectrum data, peak values associated with said spectroscopic spectrum data, fluorescence quantification data, infrared light quantification data, ultraviolet light quantification data, extended light quantification data, color, type and creation time;
[0045]...
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The invention provides a method for detecting the types of file writings. The method for detecting the types of file writings comprises the steps that spectra data and multiple-light-source detection results of file writing samples to be detected are obtained, and one or more characteristic data are obtained after the obtained spectra data and multiple-light-source detection results are processed, wherein the characteristic data are formed by characteristic items including light splitting spectrum data, wave peak values correlated with the light splitting spectrum data, quantitative data of fluorescence, quantitative data of infrared light, quantitative data of ultraviolet light, quantitative data of extended light, colors, types and creation time; the obtained one or more characteristic data are compared with the comparative data in a preset database, the comparative data with the comparison results meeting the preset conditions serve as file writing types of the file writing samples to be detected for output. The method for detecting the types of file writings is rapid, efficient and accurate and can reduce errors of manual operation and save detection time, and detected materials are not damaged.
Description
technical field [0001] The invention relates to the technical field of ink marks identification, in particular to a method and system for detecting types of document ink marks. Background technique [0002] The time of document creation is an important content of criminal science appraisal, and it is also a difficult problem in document inspection technology, and the inspection of document production time needs to provide comparison samples. The final comparison and analysis can only be carried out when there is the same type of ink stain between the inspection material and the comparison sample. [0003] In the prior art, the comparison and analysis of ink types between comparison samples and inspection materials often need to be realized manually through professional equipment and methods. Different types of ink marks can only obtain one or a few types of ink marks in practical applications, which cannot effectively solve the problem of distinguishing various types of ink...
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IPC IPC(8): G01N21/31G01N21/33G01N21/35G01N21/64
Inventor 徐期林周永芳孙威陈壵翰葛姣菊张海山徐代化
Owner GUANGDONG NANTIAN JUDICIAL APPRAISAL FIRM