- 空间性领域
- 空间域
- spatial: adj. 1.空间的；在空间中存在[发生，占有位置]的。 ...
- domain: n. 1.领土，版图；领地。 2.管区，势力圈；(特定动 ...
- simply connected spatial domain: 单连通空间域
- spatial domain method: 空域法
- spatial frequency domain: 空间频率域
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spatial domain中文什么意思
- 空间性领域
- 空间域
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例句与用法
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- This paper employed the characteristics of the hvs ( human visual system ) responded to the image contents and realized the two kinds of image - adaptive watermark algorithm , one is in the spatial domain based on the statistics theory and another in the dct domain with meaningful digital watermark
本文利用hvs人类视觉系统模型，提出了图像内容自适应的数字水印算法，分别实现了时空域中的统计原理水印算法和dct变换域中的有意义水印算法。 - Discuss the wavelet interpolation method in spatial domain with the multiresolution anaysis , and give a model of multi - scale reconstruction from multiframes to superresolution . 4 . develop a practical superresolution image restoration system , which includes some basic image processing and the superresolution of image
4 、应用文中的研究结果，在微机上建立了一套简单实用的超分辨率影像重建系统，该系统包括了对影像的基本预处理和影像重建的基本过程。 - Based upon practical engineering applications , the variant separating - variable algorithms of hyper - surface fitting for arbitrary multivariate scattered data are presented by separating positional variables in a spatial domain from certain physical variables such as time , mach number , angle of attack and so on , followed by their comparison . when compared with existing scatted data interpolation algorithms , the new ones are more effective . a sufficient condition to exchangeable order of separation is obtained and order of continuity on the hyper - surfaces above is discussed
三、以实际工程应用为背景，将具有某种物理意义的量(如时间、 ma数、迎角等)与空间位置变量分开处理，给出任意散乱数据超曲面拟合变量分离的各种算法，对它们进行了算法的分析比较，获得了分离次序可交换性的充分条件，给出了变量分离法构造的超曲面的光滑阶。 - In the discussion of image fusion methods based on spatial domain , the paper introduces the simple image fusion method and then suggests , on the basis of fusion with weighted average , to figure out the weighted average coefficient by using pca transform , which helps to form images of better fusion effect
在基于空域的图像融合方法一章中，首先介绍了简单融合方法，在加权平均融合方法的基础上，提出利用pca变换确定加权平均系数，并通过实验证明利用该方法可得到融合效果更佳的图像。 - But , though considerable process has been made in the last ten years , digital watermarking is still in its infancy , and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor , a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above , by defining the measures of capacity and robustness of digital watermarking , an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark , we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation , and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above , and combined with the masking effects of hvs , a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation . the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes , which embed watermark by modifying the values of pixels in spatial domain and transformed domain , are confronted with the conflict between the imperceptibility and robustness , we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed
本文重点对灰度图象数字水印技术进行研究，主要工作如下： 1 )鉴于目前数字水印的理论研究比较薄弱的现状，本文通过分析数字水印的特点，建立了一个数字水印的数学模型，为进一步研究数字水印打下了基础； 2 )根据以上建立的模型，通过引入容量和稳健度的概念为数字水印提供了一个客观评价方法，并对一些数字水印算法进行了分析； 3 )为增强数字水印抵抗几何攻击的能力，研究了受几何攻击的图象的复原问题，并给出了一个计算图象几何变换参数的方法； 4 )通过分析图象灰度插值算法和haar小波变换的特点，结合hvs的掩蔽效应，设计了一个公开的有意义数字水印算法，实验结果表明本算法具有较强的稳健性； 5 )目前许多水印算法都是通过在空域或频域修改象素值的方法嵌入水印的，这种方法面临着透明性和稳健性的矛盾，为解决这个矛盾，本文提出以图象的某些稳定的数字特征为水印的观点，并结合hermite矩阵的特点设计了相应的水印算法，实验结果表明该算法具有较好的稳健性。