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解码MPEG4视频流中interlace宏块的原理和实现方法
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作者 唐裕峰 王涛 王启美 《现代电子技术》 2004年第22期39-41,共3页
在 MPEG4中 interlace可以做到宏块级。当宏块使用 interlace的方式进行编码的时候 ,可以结合 dct_ type,field_ prediction,forword_ top_ field_ reference,forword_ bot_ field_ reference等标志来确定 interlace宏块的解码方法。
关键词 interlace 宏块 运动矢量 残差 解码
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Evolutionary dynamics analysis of complex network with fusion nodes and overlap edges 被引量:2
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作者 YANG Yinghui LI Jianhua +2 位作者 SHEN Di NAN Mingli CUI Qiong 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2018年第3期549-559,共11页
Multiple complex networks, each with different properties and mutually fused, have the problems that the evolving process is time varying and non-equilibrium, network structures are layered and interlacing, and evolvi... Multiple complex networks, each with different properties and mutually fused, have the problems that the evolving process is time varying and non-equilibrium, network structures are layered and interlacing, and evolving characteristics are difficult to be measured. On that account, a dynamic evolving model of complex network with fusion nodes and overlap edges(CNFNOEs) is proposed. Firstly, we define some related concepts of CNFNOEs, and analyze the conversion process of fusion relationship and hierarchy relationship. According to the property difference of various nodes and edges, fusion nodes and overlap edges are subsequently split, and then the CNFNOEs is transformed to interlacing layered complex networks(ILCN). Secondly,the node degree saturation and attraction factors are defined. On that basis, the evolution algorithm and the local world evolution model for ILCN are put forward. Moreover, four typical situations of nodes evolution are discussed, and the degree distribution law during evolution is analyzed by means of the mean field method.Numerical simulation results show that nodes unreached degree saturation follow the exponential distribution with an error of no more than 6%; nodes reached degree saturation follow the distribution of their connection capacities with an error of no more than 3%; network weaving coefficients have a positive correlation with the highest probability of new node and initial number of connected edges. The results have verified the feasibility and effectiveness of the model, which provides a new idea and method for exploring CNFNOE's evolving process and law. Also, the model has good application prospects in structure and dynamics research of transportation network, communication network, social contact network,etc. 展开更多
关键词 complex network with fusion nodes and overlap edges(CNFNOEs) interlacing layered complex networks(ILCN) local world dynamic evolvement split saturation attraction factor
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特殊图b-色数的相关性质
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作者 王国兴 曹晓军 《工程数学学报》 CSCD 北大核心 2021年第2期293-300,共8页
图染色是图论中研究热点问题之一,在许多领域都有重要的应用.用χ(G)和φ(G)分别表示连通图G的色数和b-色数.对连通图R,S,称图G不含导出{R,S},如果图G不含同构于R和S的导出子图.本文证明了对任意连通的至少4个顶点的图R,S,连通(或者2-... 图染色是图论中研究热点问题之一,在许多领域都有重要的应用.用χ(G)和φ(G)分别表示连通图G的色数和b-色数.对连通图R,S,称图G不含导出{R,S},如果图G不含同构于R和S的导出子图.本文证明了对任意连通的至少4个顶点的图R,S,连通(或者2-边连通或者2-连通)不含{R,S}的图G满足χ(G)=φ(G)当且仅当{R,S}≼{P5,Z1}.其中P5是5个顶点的路,Z1是将P2和三角形的一个顶点粘合所得的图.此外,给出了特殊interlacing图IGn,2和IGn,3的b-色数的下界. 展开更多
关键词 色数 b-色数 导出子图 interlacing图
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