一种基于非抽样小波变换的模糊逻辑图像融合算法

提出了一种基于非抽样小波变换的模糊逻辑图像融合方法.该方法利用非抽样小波对红外与可见光图像进行多尺度分解变换,可分别得到原图像的高频子带系数和低频子带系数;低频子带系数的融合准则采用自适应模糊逻辑算法,高频子带系数的融合准则采用绝对值最大法,最后对融合后的各子带系数进行非抽样小波逆变换得到融合图像.仿真实验表明,该方法对红外与可见光图像融合效果好且运算处理速度更快.     

基于小波变换与LBP算子的遥感图像融合研究

提出一种新的基于小波变换与LBP算子相结合的遥感图像融合算法．该算法在源图像小波变换的高频子带内，利用局部LBP算子极大的方法得到小波重构高频系数，而低频系数则利用源图像小波分解后低频子带系数的非线性加权得到．然后由此高频和低频系数进行小波重构得到融合图像．实验采用可见光图像与SAR图像融合，结果表明这种方法可以很好地在保留源图像各自信息的同时融合源图像的细节信息，并且能够有效抑制源图像中孤立噪声点．     

一种有效的形态小波多聚焦图像融合算法

多聚焦图像融合的关键问题是如何更好地保持源图像的轮廓信息和细节信息。形态小波具有小波变换的多层次分解特性和形态学的非线性特性。提出了一种基于形态小波变换的多聚焦图像融合算法。根据形态小波分解信号的特点,分别对高频系数和低频系数设计不同的融合规则:高频系数采用方向相关方法,最大程度保留细节和细节信息的方向特性;低频系数采用加权平均方法,该方法轮廓明显,最大程度地保留了轮廓信息。实验结果表明:该方法融合图像效果优于传统图像融合方法。     

基于双窗口小波-Contourlet变换的图像融合算法

提出一种基于双窗口小波-Contourlet变换的图像融合算法.首先采用小波一Contourlet变换对图像进行分解,接着采用两种不同尺寸的窗口计算系数的特征值:低频子带采用区域能量法和高频子带采用区域方差法,分别比较双窗口下的高频子带和低频子带的系数特征值,比较的结果作为得到融合系数选择的依据,最后采用逆小波-Contourlet变换得到融合图像.仿真实验证实,在特征类型选择一致的情况下,该方法的融合性能优于小波变换法和Contourlet变换法,融合图像质量较好.     

一种基于小波变换的图像融合改进算法

提出了一种基于小波变换的图像融合改进算法,该算法对多源图像进行小波分解,并针对分解后的低频分量和高频分量各自的特点,选用不同的融合规则进行融合,即低频分量采用局部均方误差加权平均的方法,高频分量采用区域能量比的加权融合规则.实验结果表明,无论是从主观分析还是客观统计参数评价,本文方法的融合图像效果最好,优于文中的其他算法.     

基于小波变换区域的PET/CT医学图像像素级融合

为了使PET/CT医学图像融合达到更好的效果,讨论了小波变换和区域的最优融合方法。首先将PET图像和CT图像通过二维离散小波变换,得到低频子带和高频子带|其次采用邻域能量、邻域方差、邻域梯度3种算法对高频子带进行规范化,融合规则均选用绝对值取大的方法|然后选用取平均值的方法对低频子带进行融合,将融合后的PET/CT图像通过小波逆变换,获得最终的融合图像|最后对3种融合算法进行比较,得出最优算法。实验结果表明,基于邻域梯度的融合方法在客观评价指标和人眼视觉效果上均优于其它方法,且鲁棒性较强。     

多聚焦图像融合的最佳小波分解层数

多聚焦图像融合的最佳小波分解层数的确定是图像融合研究中的一个热点,本文提出了一种确定多聚焦图像融合的最佳小波分解层数的方法。本文采用四种经典的图像相似性度量指标计算不同小波分解层的低频子带信号的相似度,根据相似性度量的计算结果来确定最佳的小波分解层数。然后比较不同分解层的融合后的图像与原始图像,来验证最佳小波分解层数的选择的合理性。实验结果表明了该方法是可行的、有效的。     

基于字典学习的医学图像融合

稀疏表示能够有效地表示图像的固有特征,利用KSVD学习算法对30幅自然图像训练得到了鲁棒的字典,利用“滑窗”策略对两幅源图像进行分块,使用OMP算法在字典上对各图像块进行稀疏分解,分解后的系数采用系数绝对值选大法进行融合,进而得到融合后和图像块.理论分析与实验结果表明,该方法能够有效地对已配准的待融合图像进行融合,融合后的结果无论是视觉效果还是客观评价参数均优于文中对比方法的效果.     

遥感图像薄云覆盖下地物信息恢复算法

针对遥感图像薄云覆盖下地物细节模糊问题,给出一种融合对偶树复小波变换和支持向量滤波的遥感图像薄云覆盖下地物信息恢复算法.利用对偶树复小波变换和支持向量滤波器将薄云覆盖遥感图像分解为高频方向子带和低频子带;分别对高频方向子带系数进行自适应增强,对低频子带系数加以抑制;对不同方法处理后的低频系数采用基于匹配度的选择和加权相结合方法进行融合,对高频系数采用基于轮廓波对比度的方法进行融合,获得地物细节清晰的融合图像.实验结果表明,算法在视觉效果和定量指标上优于对偶树复小波变换方法和支持向量滤波方法.     

基于小波变换的图像融合算法及性能评价

在阐述小波图像融合算法的基础上,针对小波分解后各频域融合算子和融合规则的选择,提出一种新的基于FPGA动态可重构的图像融合算法。该方法对小波分解后的图像低频子带采用平均融合算子处理,在高频子带的融合中依据小波系数树状结构特点提出了一种新的自适应融合方法,最后经过小波逆变换得到融合图像。核心算法集成到一片FPGA中实现,提高算法的实时性,降低系统的实际功耗,有效地减少融合图像的失真。对多组图像进行实验,实验结果表明,该方法是有效的。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

The Reader Response Approach to Teaching of English Literature

During interview with English majors, it was found that a majority of students expressed disappointment with their experience of English literature classes. Students' dislike of learning English literature appears to be the major problem of teaching English literature in China. Reader response approach is a good way to solve this problem. In this paper, I explain the rationale behind the reader response approach, such as its origin, definition, features, assumptions, and strategies. Then I illustrate how reader response approach works as a teaching strategy by presenting several teaching models. At last I evaluate its usefuiness for teachers and present the advantages of reader response approach in Chinese context.