查询词典 visual image

Because we mainly involve visual fields of medical science , have placed more contents on the development in the field of medical image of visual technology and argumentation used. Second part It is the visual technology knowledge, the generalization in such respects as the basic principle , basic functions, function store and three-dimensional animation technology to OpenGL ,etc. The realization of the system using OpenGL functions finish that three-dimension demonstration. The third part It is number value that calculate knowledge, three-dimension rebuild technology is it is it is it punish to fit to go on to need, the research of interpolator technology that cant leave, So this part has quoted the Hermite function principle , define cubic Hermite function to begin, calculate the differential coefficient among them draws cubic spline again.

由于我们主要是涉及医学可视化领域，所以将更多的内容放在了可视化技术在医学影像领域的发展与应用的论述；第二部分是可视化技术方面的知识，主要对 OpenGL 的基本原理、基本功能、函数库及三维动画技术等方面的概括，在系统实现时就是通过调用 OpenGL 函数库实现三维显示的；第三部分是数值计算方面的知识，三维重建技术需要进行拟合处理，离不开插值技术的研究，所以这一部分从埃尔米特函数原理开始讨论，引入三次埃尔米特函数，进一步计算时又引用三次样条函数。

Modern advertising to people's daily lives play an invaluable role, But advertising in the media image of women more than men based visual culture product either as a metaphor or image of a beautiful image, in fact, are female image of the reification of space.

现代广告对人们的日常生活起着不可估量的作用，但在传媒广告中的女性形象多是男本位视觉文化的产物，无论是做为隐喻的形象还是美丽的形象，其实都是女性形象的物化与空间化。

An image fusion scheme based on the wavelet transform and an image compression algorithm based on zero-tree coding are proposed, aiming at the demand of the Intelligent Transportation System. The algorithm is used to fuse visible image and infrared image with wavelet transform and then to compress the fused image by fully employing the importance degree of the subband coefficients and visual characteristic of mankind. So it enhances the integrality and oneness of the traffic information availably and also improves the quality of the system greatly.

针对智能交通系统信息采集的需要，提出基于小波分析的图像融合和零树编码的小波图像压缩算法，利用小波变换将红外和可见光图像进行融合，利用各子带小波系数对图像恢复的重要程度和人眼的视觉特性对融合图像进行压缩，算法的实际应用提高了所采集的交通信息的完整性、统一性和容错性，并改善了智能交通系统的服务质量。

Third, it has a discussion on the development of modern and traditional artificial neural network technology and their application in image processing. It summaries that the model of the Pulse-coupled neural network based on Elkhorn's model of the cat visual cortex was constructed according to the mammalian vision systems. The nonlinear modulation property, which is a generic and pervasive biological pulse-coupling mechanism, is used in the construction of PCNN. So, PCNN finds many applications in image processing, including segmentation, edge extraction et al. As all known, the performance of the image segmentation depends not only directly on the adjustment of PCNN parameters and the statistical properties of image but also on the cyclic iteration times N of PCNN. If the parameters have been properly set, it turns out to be essential to select a suitable criterion to determine N.

回顾了神经网络技术的现状，指出传统人工神经网络只利用了生物神经元有限的属性进行模型构建，而90年代产生的脉冲耦合神经网络充分利用了哺乳动物视神经网络特有属性，其神经元模型除了考虑生物神经元特有的线性相加、兴奋与抑制属性外，还考虑到生物神经元特有的非线性相乘调制耦合特性；考虑了哺乳动物视神经系统视野受到适当刺激时，相邻连接神经元同步激发产生35Hz～70Hz振荡脉冲串特性等，所以PCNN网络模型更靠近真实生物视觉特性，特别是哺乳动物视神经网络，特别适合计算机图像处理应用，尤其在生物细胞图像分割、图像平滑、降噪及图像中目标的分类、计数等方面的研究。

To reach the aim, this paper designs a group of proper evaluation criterions on the basis of the qualitative and quantitative criterions, which is on the basis of visual interpretation, adopting average gradient and wavelet energy for analyzing the space resolution difference between fusion image and original undegraded multi-spectral image, adopting standard variance, standard deviation and covariance matrix determinant value for analyzing the difference of information between fusion image and original undegraded multi-spectral image, adopting mean, median and normalization least variance for analyzing the maintenance degree of spectrum information.

将待融合图像降解到原来分辨率的一半，用现有的一些融合算法进行融合实验，并用定性和定量评价方法对融合图像进行质量评价，得到10种较好的融合方法。

Based on visual perception and image statistic characteristics, propose new techniques for content-aware key feature measurement, extraction and encryption of vidual media, consolidate foundations of mathematic theories of information hiding and embedding, propose robust capacity models and estimation methods for visual media information hiding and embedding; solve the key problems inherent in digital content certification of visual media, systematically establish controllable content-aware security mechanism of visual media

基于视觉感知和图像统计特性，提出可视媒体基于内容的关键特征度量、提取和加密的新方法；完善信息嵌入与隐藏的数学理论基础，提出高鲁棒性的可视媒体信息嵌入与隐藏的容量模型和方法，解决可视媒体的内容认证问题，系统地建立可控的可视媒体内容安全新机制。

Relative to the traditional way of predetermining basis functions, basis functions generated by learning algorithms are adapted to image characteristics and hence more efficient in image representation. Basis function-based image representation is currently a frontier research in the field of image processing, involving multiple disciplines such as statistics, geometry, visual physiology etc.

图像信息的描述能力很大程度上取决于基函数的选择，相比传统的预先设定的基函数，通过学习算法获得与图像特性相匹配的基函数能够实现对图像信息更有效的描述。

Firstly,two chaotic maps are suggested and their statistic characteristics are also analyzed.Secondly,to accomplish a controllable visual effect of encrypted image,a visual quality control model is presented,and on the basis of which,a chaotic image encryption scheme is constructed by chaotically adjusting the randomly selected approximate coefficients at the coarsest level in wavelet domain.Then,the security and efficiency of the algorithm are analyzed.

首先给出了两个混沌映射，并分析了其统计特性；为实现基于质量可控的图像加密，构建了加密的视觉质量控制模型；在此基础上，通过对随机选取的最粗级小波近似系数进行深度可控的混沌调节，实现了图像加密；最后，对加密算法进行了有效性分析。

Firstly, visual attention mechanism, visual attention computing model and the art state are introduced. Secondly, the need and importance of visual saliency in image are analyzed. In addition, the levels, extraction and measurement of visual saliency are discussed in detail. At last, open problems are put forward.

本文首先介绍了视觉注意力、视觉注意力计算模型及研究现状，其次分析了图像中引入视觉显著性的必要性和重要性，论述了图像视觉显著性的层次、显著性特征的选择及度量；最后给出了有待研究的重点问题。

In the pre-experiment stage, we analyze the colors and shapes of 135 visual illusions by Kitaoka, a Japanese scholar. The result is referenced in the formal experiment. Formal experiment includes three sub-experiments: Experiment 1 is to discuss the effect of the displacement of disjunctive center on visual illusions' movement; Experiment 2 is to discuss the effect of image layout on visual illusions' movement; Experiment 3 is to discuss the effect of color configuration on visual illusions' movement. Post-experiment stage is a repeat of formal experiment to confirm the results.

前测实验是进行日本学者北冈明佳的135幅错视动态作品之造形与色彩的分析，并将分析结果作为正式实验样本之参考；正式实验分成三个实验进行探讨，实验一在探讨分割点中心的位移对於错视图形在视觉动态上的影响，实验二在探讨图形配置对於错视图形在视觉动态上的影响，实验三在探讨色彩配置对於错视图形在视觉动态上的影响；而后测实验则是将正式实验之实验结果进行再实验，以印证正式实验之结果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。