新型高光谱图像的超分辨率制图方法

由于高光谱图像的应用在很大程度上受限于其较低的空间分辨率,为此提出了一种结合支持向量机和小波变换的高光谱图像超分辨率制图方法．先对高光谱图像进行光谱解混得到分量图,然后对分量图进行一级小波分解．各局域窗内中心像元的3个高频系数与邻域像元低频系数之间的对应关系表示为训练样本,用于支持向量机的学习．训练好的模型用来对低分辨率图像即分量图进行超分辨率制图．实验表明,这种借助小波变换来获取训练样本的学习方法无需先验信息,相比采用BP神经网络学习的方法,支持向量机的超分辨率制图效果更佳．     

左右手运动想象脑电模式识别研究

如何提高左右手运动想象脑电信号的分类率是脑机接口研究领域的一个热点话题。基于美国EGI64导脑电采集系统得到3名健康被试的脑电数据,首先,采用独立成分分析（Independent Component Analysis,ICA）对采集的数据进行去噪处理;然后,利用离散小波变换方法对分解C3/C4处的EEG平均功率信号,选用尺度6上逼近系数A6的重构信号作为脑电特征信号;最后,用Fisher线性判别分析法（Fisher Linear Discriminant Analysis,FLDA）、支持向量机方法 （Support Vector Machines,SVM）和极限学习机分类方法 （Extreme Learning Machine,ELM）分别对特征信号进行分类。分类结果表明：极限学习机分类方法得出的平均分类率要高于Fisher方法与SVM方法的平均分类率,可以达到92%,而且运行速度也高于另两种分类算法。     

语域之于近现代散文英译的指导作用刍议

近现代散文由于其独特的时代背景,语言表达和文本特征,在英译过程中可从形式系统与非形式系统两个角度进行考察。在翻译过程中,译者可根据语域中的语场和语旨要素考察原语文本的形式系统与非形式系统要素：根据语场要素的指导,译者可分析规划译文的语篇性质,进而在译文中再现原语文本的音韵词句等形式系统要素;同时,根据语旨要素的指导,译者可考察原文的非形式系统,确保原文意象在译文中再现的完整性和意境传译的可能性。     

冰山理论下的《乞力马扎罗山上的雪》

海明威的创作具有＂冰山风格＂,《乞力马扎罗山上的雪》就是海明威笔下一篇浓缩了的长篇小说,是体现其冰山理论的代表作。小说中雪、豹子、秃鹫和鬣狗等意象各具意蕴,象征意义深刻,揭示了人物的性格特征,渲染了气氛,达到了深化主题的目的。作者通过对意识流叙事手法的运用,巧妙安排了主人公的意识在时间和空间里的自然流动,省去了大量的笔墨,有利于海明威＂冰山风格＂创作理论的运用。     

探析迟子建乡土小说的意象之美

理解迟子建小说中的意象描写是阅读她作品的关键点,在她的乡土小说中,包含着对生命意象和死亡意象的描写。通过对作家作品的深入解读能逐渐的发现意象之美。     

以生命视角观照狄金森的意象诗意蕴

仔细研读艾米莉·狄金森的诗篇,我们不难发现,一向被学术界称为“隐士”和悲观主义诗人的狄金森,诗中充满了对生命的渴望和激情。对自然万物的吟唱,流露出她对生命的热爱和赞颂;对社会时事的铺叙,显示出她对生命运动的关注和神往;对死亡视死如归的坦述,表达了她对生命终极意义的感悟和对生命永恒的追求。     

The beat goes on: Rhythmic modulation of cortical potentials by imagined tapping.

A frequency analysis was used to tag cortical activity from imagined rhythmic movements. Participants synchronized overt and imagined taps with brief visual stimuli presented at a constant rate, alternating between left and right index fingers. Brain potentials were recorded from across the scalp and topographic maps made of their power at the alternation frequency between left and right taps. Two prominent power foci occurred in each hemisphere for both overt and imagined taps, one over sensorimotor cortex and the other over posterior parietal cortex, with homologous foci in opposite hemispheres arising from oscillations 180° out of phase. These findings demonstrate temporal isomorphism at a neural level between overt and imagined movements and illustrate a new approach to studying covert actions. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

机场行李监视控制系统的设计与实现

机场行李系统对于整个机场系统的正常运行具有重要的作用.本文提出了机场行李监控系统的框架,并详细描述了监视控制系统的实现方法,该系统已在大连周水子机场\长春龙嘉机场等大型的国际机场投入运行、工作可靠。     

Toward a psychophysiology of performance: Sport psychology principles dealing with anxiety.

In this applied case study during an off-season period, a unique and innovative internal imagery/video/electroencephalogram (EEG) biofeedback protocol was used to train visual attention and increase self-confidence of a collegiate baseball player struggling to recover from a serious eye injury. Results from the ensuing competitive season revealed that self-confidence increased and hitting and fielding performance improved dramatically. In the subsequent competitive season, without psychological skill training, hitting and fielding performance declined to preintervention levels. Although EEG biofeedback has been slow to gain acceptance among applied practitioners, used in conjunction with video and internal imagery, it appears to have potential as a tool for training visual attention in athletes within a variety of externally paced sports, such as baseball, softball, and racquet sports. (PsycINFO Database Record (c) 2010 APA, all rights reserved)