Image fusion refers to the techniques that integrate complementary information from multi - image sensor data such that the new images are more suitable for the purpose of human visual perception and computer process such as segmentation , feature extraction , and object recognition 多传感器图象信息融合是指对多个传感器采集的关于同一目标或场景的图象进行适当的处理，充分利用多传感器成像间存在的冗余性和互补性，提高图象信息利用效率的技术。
We have found the best ways to optimize the growth of quality zno films and got highly c - axis oriented zno films . the microstructures of the films were observed by afm . after analyzing the crystal structures , the crystal tropism and the surface conformation flatness , we found the result that the substrate temperature of 400 ? is ideal for silicon substrates , which conforms to the result of the structure analyse . by analyzing the magnetism of zno films , we found that the films appropriately doped with fe , co ions have magnetism at room temperature and their magnetism can be improved by doping other little cu ion , but it is not certain that the content of cu is higher , the film has more magnetism , so it has the best content of cu . moreover , the films which have best crystal structures may not have the best magnetism 我们采用原子力显微镜( afm )方法观察薄膜的显微结构，利用所得的图象信息对薄膜的晶粒结构、晶粒取向、表面形态平整度等进行分析讨论，认为400的衬底温度对硅衬底薄膜是合适的，与结构分析的结果一致。通过对薄膜磁性能的分析和研究，我们得出一些有意义的结果：适量过渡金属离子fe 、 co掺杂的zno薄膜，在室温下具有铁磁性，而在此基础上掺入少量的cu离子能改善薄膜的磁性。掺cu量有个最佳值，而且结构最好的薄膜磁性不一定最好。
With the development of the technology of multimedia and internet , visual information is used more widely . as a result , the management and retrieval of image information are more important . as a key technique , content - based image retrieval ( cbir ) has become one of the most active research areas in the past few years 随着多媒体技术及internet技术的迅速发展，各行各业对图象的使用越来越广泛，图象信息资源的管理和检索显得越来越重要，其中基于内容的图象检索( cbir , content - basedimageretrieval )已经成为近几年来最活跃的研究领域之一。
This thesis discusses the theoretical models and some key techniques of information hiding in digital images . in this thesis , we attempt to establish a theoretical framework for image information hiding . at fist , a modification of a simmon ' s " prisoners " problem is proposed to admit typcal image information hiding scenarios 通过考察图象信息隐藏与攻击的典型应用场景，从发信方和收信方的知识约束、隐写密钥管理、收信方的行为模式和攻击方的行为约束等几方面对simmons提出的“囚犯问题”进行扩充，提出了一个扩展的理论模型。
The double - color method and theory for stereodisplay of the torpedo ' s trajectory are presented in this article . program which is using the programming language of visual c + + 6 . 0 + mfc + opengl has been compiled . in this program , torpedo can be displayed in stereodisplay mode , which can be controlled adapting to the changing of time and space 本文提出了鱼雷弹道双色立体显示技术，系统的介绍了鱼雷弹道立体显示的原理和方法，并采用visualc + + 6 . 0 + mfc + opengl软件结构编制了相应的程序，使鱼雷最终能够直观的，以图象信息表示出其随时间和空间变化过程，即以立体图象呈现在研究者面前，从而能够更为方便地模拟和计算，对鱼雷弹道的研究和设计具有十分重要的意义。
In this thesis , some new methods and applications of pixel - level multisensor image fusion are presented . in chapter 1 , the fundamental concept , methods and applications of multisensor image fusion are introduced . some existed methods for image fusion are averaging and weighted averaging , color mapping , nonlinear method , optimization approach , markov random fields and simulated annealing , artificial neural networks , pyramids , wavelets 论文在第一章介绍了图象信息融合的概念、融合的优点、通用融合结构以及目前常用的像素级图象融合方法，包括算术平均、彩色映射、非线性组合、马尔可夫随机场、神经网络、金字塔变换（梯度金字塔、比率低通金字塔、形态学金字塔等）和小波变换等，在第一章还介绍了像素级图象融合的应用。
