The all-digital holography is based on the optical theory, combined with the strong manipulated ability of the computer, which is applied to the information security fields.
全数字全息术以光学原理为其理论基础，与计算机强大的处理能力相结合，应用于信息安全领域。
As a highlight in the optical research today, digital holography is a mix of optical holography, computer technology and electronic imaging technology.
作为当今信息光学研究领域中的一个热点，数字全息技术是光学全息术、计算机技术及电子成像技术相结合的产物。
Firstly, the coding principle of computer-generated holography (CGH) in applications of 3d display and arithmetic of the digital reconstruction of holograms is introduced briefly.
首先简要介绍了在三维显示的应用中计算全息的编码原理，以及全息图数字化再现的几种算法。
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