...文档资料 关键词: 随机相位模板; 菲涅耳变换; 信息安全; 图像置乱 [gap=926]Key words: random-phase marks; Fresnel transform; information security; image scrambler ...
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菲涅耳变换全息图像 Fresuel-transform holograms
菲涅耳变换公式 fresnel transform formula
菲涅耳变换法再现 Fresnel-transform reconstruction
菲涅耳联合变换相关器 Fresnel Joint Transform Correlator
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该方法对图像分别进行一次菲涅耳变换和分数傅里叶变换，并在图像的菲涅耳域和分数傅里叶域上分别利用随机相位版施行相位编码。
In this paper, image is Fresnel transformed and Fractional Fourier transformed successively, and phase encoding is implemented in both Fresnel domain and Fractional Fourier domain.
基于多重菲涅耳衍射变换和相位密码板，设计了一种新的图像加密计算方法。
The new image encryption algorithm was proposed based on multiple Fresnel diffraction transforms and phase encryption masks.
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。
The digital watermark technique is proposed based on Fresnel hologram and Discrete Cosine Transform.
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