Mutual mapping between surveillance video and 2D geospatial data

被引：0

作者：

Zhang, Xingguo ^{[1
]}

Liu, Xuejun ^{[2
]}

Wang, Sining ^{[2
]}

Liu, Yang ^{[2
]}

机构：

[1] College of Urban and Environmental Science, Xinyang Normal University, Xinyang

[2] Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing

来源：

Wuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University | 2015年 / 40卷 / 08期

基金：

中国国家自然科学基金;

关键词：

2D geospatial data; GIS; Mapping; Surveillance video;

D O I：

10.13203/j.whugis20130817

中图分类号：

学科分类号：

摘要：

In order to achieve the mutual enhancement between surveillance videos and 2D geo-spatial data, a modal including geometric and content mapping is proposed. Firstly, based on the pin-hole camera model of photogrammetry and computer vision, we assume the ground is composed of multiple planes and propose a mapping model. The mapping model has clear physical meaning, convenient and flexible. Through the model, the videos and 2D geospatial data can be mutually projected. Secondly, because the true ground is not flat, undulation has an impact on the mapping between videos and 2D geospatial data, a formula for the impact is provided. Thirdly, the objects in videos are larger nearby and smaller at far distances. In order to get the real space of each pixel, we propose an indicator, video spatial resolution and discuss the spatial distribution. The model is suitable for multiple planes but not suitable for complex geographic scenes.

引用

页码：1130 / 1136

页数：6

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