丰江帆, 宋虎. 利用随机图语法的地理视频运动要素解析[J]. 武汉大学学报 ( 信息科学版), 2014, 39(2): 206-209. DOI: 10.13203/j.whugis20120711
引用本文: 丰江帆, 宋虎. 利用随机图语法的地理视频运动要素解析[J]. 武汉大学学报 ( 信息科学版), 2014, 39(2): 206-209. DOI: 10.13203/j.whugis20120711
FENG Jiangfan, SONG Hu. Analytical Method for Mobile Elements in Geo-VideoUsing Random Graph Grammar[J]. Geomatics and Information Science of Wuhan University, 2014, 39(2): 206-209. DOI: 10.13203/j.whugis20120711
Citation: FENG Jiangfan, SONG Hu. Analytical Method for Mobile Elements in Geo-VideoUsing Random Graph Grammar[J]. Geomatics and Information Science of Wuhan University, 2014, 39(2): 206-209. DOI: 10.13203/j.whugis20120711

利用随机图语法的地理视频运动要素解析

Analytical Method for Mobile Elements in Geo-VideoUsing Random Graph Grammar

  • 摘要: 目的 提出了一种利用随机图的地理视频流解析方法,用于对地理视频中的运动要素进行相关性分析。利用运动要素在时空上的相关性和连续性,得到一种反映视频流中运动要素空间关联的时序结构,提供了一个将语义信息与运动信息有效整合的思路。实验证明,该方法不仅能够动态、直观地描述地理视频流中运动要素的空间关系,而且为地理视频场景的语义描述提供了新的思路。

     

    Abstract: Objective Decomposition of a Geo-video stream presents the expression of video from spatial featureset.Although it has been studied widely,spatial relations underlying a scenario are not well under-stood.Here we use a method which takes advantage of`random graph theory to investigate the seman-tic knowledge in Geo-video,leading to correlation analysis of the target motion elements in a Geo-vide-o stream.We used the connections of target motion elements,both correlation and continuity,to leadto a structure in time series that reveals clues to the event development of the video stream.Further-more,it provides a method for the effective integration of semantic and campaign information.Ulti-mately,experimental results show that the method offers a better description of video elements thancan be achieved with existing schemes.In addition,the proposed method offers a new way of thinkingabout the semantic description of the geographic video scenarios.

     

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