如今,意大利罗马第三大学的科学家们研发了一种揭露伪造笔迹的新工具,利用全息影像技术(hologram-based technique)制作了手写件的三维影像图,经由影像处理(imageprocessing)与虚拟实境(Virtual Reality)技术,很容易就可找出笔划交叉点的突起处。
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CGH element is designed and fabricated based on the computer generated hologram and the binary optical technique, and is applied in wavefront transformation.
运用计算全息原理与二元光学技术设计制作了用于波面变换的计算全息cgh元件。
A new anti-counterfeit technique based on computer generated hologram identification marks was proposed.
提出了一种新的计算全息标识证件防伪方法。
The digital watermark technique is proposed based on Fresnel hologram and Discrete Cosine Transform.
提出了一种基于数字菲涅耳全息和离散余弦变换的数字水印技术。
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