Then a grid map is also built in the topological map and landmark information updates related incremental map on Bayesian theory.

In this paper,based on grid maps updated in real time,a fast,suboptimal planning algorithm is proposed to implement collision-free navigation of an autonomous mobile outdoor robot AMOR,who is the winner of autonomous reconnaissance in the 2007 C-ELROB competition.

We study the behaviors of the coverage of the environment and present a feasible method that robot maps; We represent the environment with the grid map, and divide the map of the environment; Adopt a Width-first Search and Depth-first Coverage (WSDC) method to gain a coverage-order of the square free-areas to navigate the robot movement.

The authors introduce the establishment of a Managing System of the provincial digital raster map by combining MapInfo with VB.

This paper proposes a new procedure to erase noises on raster map.

The 3D digital map is a new mapping, this article take the 3D digital map of Fengxian district as an example, introduce key technology, design of digital map、construction of raster map、integration technique of WebGIS and so on, in this project, a new pattern of digital map apply for E-government in government service and business.

For using raster topographic map in AutoCAD directly,Problems are discussed as follows,such as scanning,correction,positioning,joining and display in network.