Study on a New Method for Transferring Grid to Vector Using the Topological Theory
基于拓扑关系原理的栅格转换矢量方法的研究

With the different view of traditional methods, in the light of the topological theory, this paper studies a new method for converting raster data to vector data. Compared with traditional methods, the new method does not need to pro process the raster image, created topological structure of vector data during the conversion. This method processed raster data row by row just one time, and could fit for large image. It, therefore, has high efficiency high speed, and gives good experimental results.