-视频GIS数据采集系统的设计与实现.pdf

Docin Choose 豆 丁 推 荐 ↓ 精 品 文 档 The Best Literature The Best Literature 6 2 GEOSPATIAL INFORMATION Vo . 6,No. 2 视频GIS 数据采集系统的设计与实现 郭 浩，孔云峰 （河南大学 中澳地理信息分析与应用研究所，河南 开封475004） 摘 要：视频GIS 数据采集系统是将地理信息与视频影像实时自动集成，生成空间位置与视频影像相融合的超视频信息。 在视频GIS 数据模型原理的基础上提出了在视频采集的同时，按照一定的时间或空间间隔，记录地理坐标、速度和相对应 的视频帧数，通过建立视频时间或视频帧与其地理位置坐标、速度的对照表，来实现视频数据与空间地理数据的有机集 成。并详细的阐述了该系统的设计和实现。 关键词：地理信息系统；视频GIS；视频采集；GPS；VFW 中图分类号：P208 文献标志码: B 文章编号: 1672-4623 (2008) 02-0081-03 Design and Implementation of Video GIS Data Capture System GUO Hao ，KONG Yunfeng (China-Australia Cooperative Research Center for Geographic Information Analysis and Applications, Henan University, Kaifeng 475004, China) Abstract ：A video capture system in VideoGIS aims at combining geo-referenced video information with traditional geographic information, and establish intrinsic link between video space and map space in order to provide a more comprehensive understanding over spatial obj ect and spatial phenomenon. A way of integrating video data with spatial data is described in this paper that while capturing video, they are being recorded of geographic coordinates， speed and the corresponding video frame count in a certain interval of time or space, and then the chart is established of video time or video frame with location coordinates and speed. It was introduced design and implementation o