Chapter three mainly deals with image restoration in the spatial domain.
第三章主要论述基于空间域的数字图像复原算法。
The principle of micro-zooming is analyzed in spatial domain.
从空域的角度分析了微变焦法的原理。
Encryption algorithms in spatial domain and frequency domain are proposed.
设计了空间域和频率域加密算法。
A spatial domain image watermarking algorithm based on chaotic maps is proposed.
提出一种基于混沌序列的图像空域水印算法。
A novel chaos based spatial domain watermarking algorithm is proposed in this dissertation.
提出了一种新颖的基于混沌的空域数字水印算法。
In this paper, a convenient image steganography scheme based on the spatial domain is proposed.
介绍了一种基于空间域的信息隐藏方案。
The basic theories and procedure of the MAP method and POCS method in spatial domain are summarized.
对MAP和POCS这两种空间域方法进行研究，总结了其基本思想与算法流程。
Operational modal analysis method of bridge was built based on frequency domain and spatial domain decomposition.
利用频域-空间域分解法，建立桥梁运行模态识别方法。
The image de-noising method basically may divide into two kinds: transform domain de-noising and spatial domain de-noising.
图像的去噪方法基本上可分为变换域法和空间域法两大类。
A new method and an experimental unit for realizing phase shift interferometry by means of spatial domain sampling is proposed.
提出了一种利用空域采样实现相移干涉计量的新方法和实验演示装置。
It can be accomplished in spatial domain and frequency domain. This chapter presents the ways of the smoothing of digital image.
数字图像平滑处理可以在空间域或频率域中进行。
Both types have their own advantages: frequency domain methods have strong robustness, while spatial domain methods have higher accuracy.
这两种方法各有特点：频率域法的鲁棒性强，而空间域方法相对精确度更高。
The technology of video stream transcoding can be divided into two types: spatial domain(pixel-domain) and compressed domain(DCT-domain).
目前的视频流转码大致可以分为空域（像素域）转码和压缩域（DCT域）转码两种方法。
A new spatial domain digital image watermark imbedding algorithm is presented in this paper by analyzing some spatial watermark algorithm.
该文通过对多种空域水印算法优缺点的分析，提出了一种新的空域数字图像水印加入算法。
Research on digital watermarking algorithms for the 3d mesh model in the spatial domain and 3d shape model defined as a point set is made.
本论文分析了三维几何模型数字水印的基本原理和方法，研究了空域中的三维网格水印算法和三维点集模型的水印算法。
Rice-duck farming also had definite effects on the occurrence position and spatial domain of main predatory natural enemies on rice plant.
稻鸭共作对天敌在稻株中的发生部位和同域性也具有一定的影响。
Then, a multiscale morphology gradient-based watershed segmentation algorithm is introduced to segment the video frame in the spatial domain.
然后，引入基于多尺度形态梯度的分水岭分割算法，对图像进行空域分割。
The lifting construction exploits predictor and update operator design which is based on the interpolatory discrete splines in a spatial domain.
探讨了空间域中基于离散插值样条的预测算子和更新算子的设计。
In order to increase computing speed, MOM formulations including closed-form spatial domain Green's functions are derived for geometry of microstrip.
为了提高辐射问题的计算效率，推导了微带线结构的含有闭式空域格林函数的矩量法数值计算公式。
Moreover, interpolation in spatial domain is proposed to retrieve signal for space time processing in consideration of the vibration of platform motion.
此外，考虑到实际平台运动速度的波动，本文又提出通过空域插值获得等效阵元信号进行空时二维滤波的方法。
Experimental results show that the proposed scheme can achieve better performance in Fourier domain while maintaining the image quality in spatial domain.
实验结果表明，本文所提出方法在保持空间域图像质量的同时有效的减小了傅里叶域光谱的失真。
Considering the coherence among neighborhood pixels in an image, a kind of spatial domain watermarking scheme based on support vector machine is proposed.
为了使数字水印综合性能更好，根据图像邻域像素之间具有很强的相关性这一特点，提出了一种基于支持向量机的图像水印算法。
Through the analysis of many representative spatial domain watermarking algorithm, a novel image spatial domain blind watermarking algorithm was presented.
通过对多种空域水印算法优缺点的分析，提出了一种新的图像空域盲水印算法。
In this paper, principle analysis shows that tricolor grating has the character of multi-wave superposed in spatial domain and separated in frequency domain.
通过原理分析说明，三色光栅具有的多光谱的空域复用、频域分离的结构特点。
The homogeneity of the sheet is analyzed by image transform, i. e. the spatial domain image is transformed to frequency domain or wavelet domain to obtain the features.
对于纸页的均匀性分析，通过图像变换，将空间域图像变换到频域或小波域进行分析，获取其特征；
The chaotic mapping enables the logo pixels rearrange randomly in the specified spatial domain, and the mixed bits of the logo were embedded in the image DCT coefficients.
使用混沌映射将二进制商标的像素在空间区域中进行随机置乱，然后将置乱的信息分块嵌入在图像的DCT变换系数中。
In traditional approach, people use l_2 -norm to measure data approximation item and regularization item in regularized image restoration and super-restoration in spatial domain.
在传统的空间域正则化图像复原或超分辨率图像复原方法中，是用向量2-范数度量数据逼近项和正则项。
The LSB algorithm based on spatial domain is improved. It took advantage of chaos to preprocess watermarking and to use fixation normalization mutuality to embed watermarking in LSB.
提出一种LSB改进算法．利用混沌序列对水印预处理，而后利用固定归一化相关嵌入图像数据低位，从而改进了传统LSB算法稳健性差的缺点。
The paper, by adopting jointly Artificial Neural Network (ANN), general Amold mapping, and statistical methods, intends to formulate an algorithm based on image spatial domain watermark.
将人工神经网络（ANN）、广义猫映射及概率统计等知识相结合构造了一种图像空间域水印算法。
Compared with existing spatial domain optimization methods, the new spatial spectrum optimization method can effectively improve the practical performance of DOE and save computing time.
与已有空间域优化方法的对比表明，在元件实用效果方面，空间频域优化设计方法优于空域方法。
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