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本文首先介绍了视频编码中的速率、质量和复杂度的关系,在此基础上着重引出了几种码率控制机制;然后介绍了分布式视频编码的概念和技术;最后介绍了视频编码的实现,包括软件实现、ASIC实现和高速DSP实现。 相似文献
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本文首先介绍了视频编码中的速率、质量和复杂度的关系,在此基础上着重引出了几种码率控制机制;然后介绍了分布式视频编码的概念和技术;最后介绍了视频编码的实现,包括软件实现、ASIC实现和高速DSP实现。 相似文献
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本文介绍了一个具体的分布式入侵检测系统的总体设计与具体实现。首先介绍了系统总体目标、系统框架,然后介绍了系统实现的总体思路,并给出一些主要功能的实现。 相似文献
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本文着重介绍了小灵通网络内短信业务的技术实现方式.全文从短信业务的技术架构入手,介绍了短信业务实现中涉及的各级网元设备及相关协议.从网络结构、业务实现流程等方面对小灵通网络短信业务的技术实现方式进行了详细的介绍.最后分析了小灵通短信业务漫游问题的产生原因,并介绍了小灵通短信漫游业务实现的技术方案. 相似文献
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李瑞芳 《电视字幕·特技与动画》2001,8(2):54-58
在上一讲,我们先介绍了抠像的基本概念,并且介绍了一种复杂抠像的实现.本讲我们将首先介绍实现抠像的基本方法,然后详细地介绍动态抠像的实现.下面首先介绍在动态抠像方法 Effects软件中实现动态抠像的基本方法,最后通过动态抠像实例来介绍实现动态抠像的过程. 相似文献
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本文介绍了汤姆逊摄像机面板的按键触发EVERTZ矩阵面板信号源选择的实现方式,介绍了从最初猜想到最终实现,这个过程中涉及到的功能实现、针脚定义、软件配置等。 相似文献
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本文介绍了数字集群中越区切换的相关知识和实现方法.首先,介绍了越区切换的产生原因.然后,介绍了越区切换的典型实现方法.接着,以TETRA系统为例着重介绍了数字集群中越区切换的实现过程.包括切换前的测量、切换的策略和如何切换处理.最后介绍了越区切换的考核方法. 相似文献
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介绍了《豪门盛宴》虚拟解说员Mr.Goal的角色定位、形态的设计及实现,并介绍了实现过程中的流程规范。 相似文献
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By means of exact conformal mapping method we have defined character of dependence of squares amounts of angular part of film
element on angled part dimension. We propose relations, approximating obtained dependence. Calculation results and experimental
researches of large-scale models are represented. 相似文献
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Moshrefzadeh R.S. Radcliffe M.D. Lee T.C. Mohapatra S.K. 《Lightwave Technology, Journal of》1992,10(4):420-425
The temperature dependence of refractive index of polymer films was determined for a number of slab waveguides by a grating coupling method. This dependence was examined as a function of parameters such as molecular weight and glass transition temperature of the polymer. Temperature-induced changes in N TE-N TM , N being the effective index, were studied systematically for different slab waveguide compositions. It is shown that with proper device design and choice of polymeric materials, thermal effects can be reduced 相似文献
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The approaches to prepare a uniform and unified scientific terminology of chemical carcinogenesis are presented. The main definitions proposed (carcinogen, initiation, promotion, mutagen, multistage carcinogenesis, anti-carcinogen, cocarcinogen, carcinogenic risk, etc.) are based on the current state of comprehending mechanisms of the action of chemical carcinogens. 相似文献
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The article describes a model representation of radar probing data in form of a mixture of background and target samples, which is the sum of two random variables with very different parameters. For model development we research the behavior of the central moments of the distribution mix without assuming the distribution law form. An example it is described the detection of the signal at the output of compression system of chirp ionosonde. 相似文献
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解决IP网QoS问题是目前通信领域的研究热点之一.虽然研究已经取得了一定的进展,但人们对于IP 网QoS本身的含义及相关的问题还有着不同的理解.本文将从IP网QoS的定义入手讨论相关的一些问题以及解决IP网QoS问题所做的各种努力. 相似文献
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《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1968,56(6):1024-1032
Assuming that visual responses are due to the action of particles on the membrane of the visual cells, the stochastic variability of the response should be a function of the number of particles producing it. Quantitative predictions can be made with the aid of a model proposed in previous articles. It is found that responses produced in visual cells of Limulus by absorption of a single photon have the stochastic properties which would be expected if the response to one photon were brought about by 25 particles. It is concluded from this that the processes leading to visual responses produce multiplication of particles. The effects of temperature and of metabolic poisons suggest that these processes are of chemical nature. 相似文献
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《半导体学报》2008,29(12):2470-2470