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利用光学显微放大原理,运用先进的计算机图形处理和图像计算算法对字迹色痕特征进行分析,为判定文件制成时间给出一种新的检验方法。字迹色痕与纸张色泽感光度鉴别仪可以提取分析文件物证感光度的变化,初步具备了判定文件形成时间的能力,为文件制成时间检验提供了一种新的检测仪器。
The principle of optical microscopic enlargement is used to analyze the characteristics of smudge by using advanced computer graphics processing and image calculation algorithms to provide a new test method for judging the time of file making. Writer’s smudge and paper’s color sensitivity discriminator can extract and analyze the change of the sensitivity of documentary evidence, and initially possess the ability to judge the formation time of the document, which provides a new testing instrument for the test of the time when the document is made.