Improved fast intra prediction algorithm of H.264/AVC

With advanced prediction modes of intra prediction, intra coding of H.264/AVC offers significant coding gains compared with previous video coding standards. It uses an important tool called Lagrangian rate-distortion optimization (RDO) technique to decide the best coding mode for a block, but the computational burden is extremely high. In this paper, we proposed an improved fast intra prediction algorithm including block type selection and mode decision algorithm based on analysis of edge feature of a block. Our algorithm filters out unlikely block type and candidate modes to reduce the RDO calculations. Experimental results showed that the proposed algorithm can reduce the computation complexity of intra prediction from 52.90% to 56.31%, with 0.04 dB PSNR degradation and 2% increase of bit rate.     

试析爱默生对狄金森诗歌的影响

爱米莉·狄金森被公认为美国镀金时代崛起的伟大作家之一,美国罕见的文学天才,西方现代主义诗歌的先驱。本文拟通过分析爱默生思想在其诗歌中体现,探索其创作思想,从而使读者更好的理解她诗中所蕴藏的丰富内涵。     

以党的十七大精神为指导构建和谐校园,促进教育学院事业和谐发展

和谐校园建设具有非常重要的意义,可以为社会主义和谐社会建设提供良好的文化氛围,引领并推动社会文明的发展,有利于增强校园创造活力,为社会主义和谐社会建设提供强大的人才支撑。所以,应当坚持以人为本、共建共享、全方位的原则构建和谐校园,具体来说就是要树立以人为本的理念,建立强有力的领导机制,创设公平、公正的制度环境,建立民主管理体系,营造轻松、愉快的民主氛围,构建和谐的校内外关系,建设和谐健康的文化环境,促进和谐校园建设。     

硇洲岛沿海腹足类的种类组成和生态分布

本文报道了广东湛江硇洲岛沿海的腹足类软体动物１１４种，隶属于６８属４２科；介绍了硇洲岛的自然环境及潮汐；对腹足类的种类组成、生态分布、优势种和区系特点等进行了分析．     

Flow shop rescheduling problem under rush orders

INTRODUCTION Rescheduling problem in manufacturing system is considered as a particularly hard combinatorial optimization problem,closely related with uncer-tainty caused by exterior business environment and interior production conditions.Production resched-uling is a common practice in manufacturing compa-nies all over the world.Four sources of production disturbances have been identified:(1)incorrect work;(2)machine breakdowns;(3)rework due to quality problem;and(4)rush orders(Rangsarit…     

教学仪器订购系统设计

介绍了一种为中小学校进行教学仪器、器材、设备的订购、配备及管理的计算机管理软件系统，对其主要功能、数据库表、操作性能、用户界面、编程方法等作了扼要说明。     

近年来上海物理高考改革实例分析

素质教育要求将学生从由死记硬背造成的过重地学业负担中解放出来，要求让学生感受、理解知识产生和发展的过程，要求教育以德育为核心、以创新精神和实践能力为重点、以学生发展为目标。由此对高考内容改革提出了如何设置试卷结构，如何设计试题形式，如何确立考查目标，如何根据当前现况对教学进行平稳导向等一系列问题。这几年高考物理(上海卷)力图就上述几个方面的问题作进一步探索。     

语文网络教学案例分析和启示

通过语文教学中运用网络的案例分析，证明了网络教学是有利于激发学生学习兴趣，有利于分层教学的实施，有利于构建平等的师生关系和高效轻负的教学模式。     

Modeling water and carbon fluxes above summer maize field in North China Plain with back-propagation neural networks

INTRODUCTION Dynamics of carbon and water vapor fluxesexchange between the atmosphere and the ecosystembiosphere, depend on complex and non-liner interplayamong physiological, ecological, biochemical andedaphic factors and meteorological conditions (Jarvis,1995; Leuning et al., 1995). There are many studiesquantifying the fluxes across different time and spacescales as well as assessing the environment con-straints on them by some kinds of biophysical orempirical models whose resul…     

民间投资乏力的原因及对策

改革开放以来 ,我国民间投资 ,逐步成长壮大 ,在促进经济增长、增加就业、提高人民生活水平、促进经济体制改革等方面发挥了重要的作用。特别是近两年 ,在国家积极财政政策的支持下 ,民间投资增长速度明显加快 ,民间投资开始启动。但制约民间投资发展的因素并未从根本上消除。本文就这些因素进行分析并提出相应的对策 ,以促进民间投资的进一步发展。