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