数字视频接口数据模型 Digital Video Interface Data Model
第二章：国内外研究进展，系统总结了近些年地理视频数据模型、视频GIS设计与应用的研究进展。
Chapter II: Literature Review has outlined the research progresses in Geo Video data model, VideoGIS design and various applications in recent years.
第四章：系统设计，重点讨论了系统的总体设计、功能设计、地理视频数据模型设计、数据库设计等内容。
Chapter IV: system Design introduces a general system framework, in which the data model, data management workflow and the subsystems are discussed detailedly.
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