A "Raster-Vector" Integrat

第1作者單位：

武漢大學(xué)資源與環(huán)境科學(xué)學(xué)院

論文摘要：

Since vector approach can be applied for accurate geo-processing, while raster approach is suitable for spatial analysis, the integration of raster and vector approaches has been studied for years. This paper attempts to advance a combined approach for geographic feature retrieve in a mechanism so called “raster: relation-vector: entity” combined approach. That is, using a “dimension-plus”relational raster, the topological information is examined within a foreseeable raster index time by reducing the need of calculating exact geometry of spatial objects. Such topological information is in turn to vector organization. Hence the complex geometric objects can be reconstructed using vector data within minimal time consumption. This research realizes the recognition and the rebuild of spatial entities described in geometric and semantic information based on vector data.

關(guān)鍵詞：

Raster Matrix; Vector; Object Identity; Feature Retrieve; Digitization 

發(fā)表日期：

2008年03月10日

同行評議：

文章提出”柵格關(guān)系-矢量實(shí)體”結(jié)合方法來進(jìn)行空間要素的構(gòu)建技術(shù)。本文對這方面的研究綜述較全面，條理清晰，結(jié)構(gòu)較為嚴(yán)謹(jǐn)，從理論和實(shí)驗(yàn)對所提出的方法進(jìn)行了充分論證，結(jié)果可靠。

本文方法的不足之處是，實(shí)例運(yùn)行的速度需要改進(jìn)。

綜合評價：

修改稿：

注：同行評議是由特聘的同行專家給出的評審意見，綜合評價是綜合專家對論文各要素的評議得出的數(shù)值，以1至5顆星顯示。