地理视频数据模型设计及网络视频GIS实现

Design of GeoVideo Data Model and Implementation of Web-Based VideoGIS

摘要: 在回顾地理视频与视频GIS的相关研究进展的基础上,提出了地理视频数据模型和视频GIS框架设计,包括地理视频的描述方法、数据处理流程,以及网络视频GIS技术标准、系统设计与实现技术方案,重点介绍了开发视频GIS的关键技术。基于Google Maps和ArcGIS Server平台,采用Flash视频,实现了网络地图环境中地理视频的查询、检索、播放和导航,表明本文提出的地理视频模型和网络视频GIS技术框架是可行的。

Abstract: We present a data model for GeoVideo and a system framework for VideoGIS,including the data structure of GeoVideo data,the processing flow of Geovideo data,key modules of a VideoGIS,and the technical design and implementation issues.Several key technologies,such as Web map design,GeoVideo management,GeoVideo player design and system integration,are discussed in detail.Utilizing Google Maps API,ArcGIS 9.3 map services and Flash video standard,a prototype of VideoGIS is implemented.This VideoGIS provides flexible interfaces for GeoVideo query,index,visualization,navigation in the context of Web maps,and has verified the feasibility of the GeoVideo data model and VideoGIS design.