Since the traditional coding technology for image and video is using of dct , the blocked and whole dct technology in frequency domain was used in order to embed watermarking 由于以前的图像和视频编码标准采用dct编码，在变换域嵌入水印大多使用分块或整体dct技术。
According to the concept and basic form of svpsf , the cavity and duct scattering is examined , and a method is developed to remove the duct - induce dispersion effect 推演了典型非点散射结构?腔体结构的二维svpdf的具体形式，得到消除其散焦效应的积分变换域滤波方法。
To deal with the problem of digital products copyright protection , an effective blind water - marking algorithm based on the wavelet transform and frequency hopping is proposed 摘要为了有效地解决数字产品版权保护问题，提出一种基于静止图像小波变换域的盲检测数字水印算法。
The technique constructs bpof based watermark from the image discrete fourier transformation and embeds the watermark into the bit plane ( s ) of the corresponding magnitude spectrum 它在图像离散fourier变换域构造基于二元纯位相滤波器的水印,并嵌入到其相应的幅值位平面中。
This arithmetic has also embody the idea of information layered dispose of diversification field dealing , which exist in the mutual transition between 24 bit color picture and two - value characteristic picture 算法中24位彩色图与二值特征图之间相互转换的过程,体现了利用变换域处理和信息分层处理的思想。
In this paper , we introduced two watermarking channel models and analyzed discrete cosine transform domain ( dct domain ) watermarking channel model for copyright protection of still digital images 在本文中，我们介绍了两种水印信道模型，同时分析了一种用于静态图象版权保护的oct变换域的数字水印信道模型。
We adjust the strength of embedded watermark in according to the visual model in the ridgelet domain . experimental results show that our algorithm is very effective . performance improvement is obtained 论文根据小脊变换域中的视觉模型，按照小脊变换域中计算出水印嵌入强度的权重，用扩频的方法来嵌入水印信息。
( 3 ) after comparing many traditional fusion methods in spatial or frequency domain , in the paper a self - adaptive image fusion method based on dynamic weighting of regional features is proposed 3 、在对传统的空间域和变换域多源影像融合方法进行比较的基础上，提出了一种基于区域特征动态加权的自适应遥感图像融合方法。
Ridgelet transform decompose the spatial frequency domain into some subbands with different directions and frequencies . this hierarchy matchs the multi - channel model of hvs ( human visual system ) better than wavelet transform 由于小脊变换的特点，使得在小脊变换域中建立视觉模型比在dct 、 dwt域中建模更自然，更有优势。
Firstly , this paper establishes the contact model of pavement and vehicles , and uses the method of transform domain analysis to get structural characteristic of pavement slab and the relation between suffered loads and its response 本文首先建立了路面-车辆接触模型,采用变换域分析的方法得到板的结构特性和所受载荷及其响应的关系。
