Digital Map Updating Aided by Map Conflation Approach---Take Road Maps as an Example

• Main Authors: Guo-Hao Huang, 黃國豪
• Other Authors: Ying-Jean Kuo
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/97609834042158621861

碩士 === 國立成功大學 === 測量工程學系碩博士班 === 91 === 　　The acquisition of digital maps are very costly and time consuming.With topographic feature changes and the course of human events,maps that lack of updated will not truly reflect current status of the terrain.As traditional map updating method checks features changes comprehensively and collects new data globally, it requires a lot of labour involved and tremendous expenditure.As a result,updating digital maps locally and gradually will become the main stream of map updating in the future.However,map updating cycle will not always catch up with feature changes. How to integrate the different sources of data to update map efficiently has become an important research issue. 　　The thesis discusses how to solve map updating problem by map conflation approach.Map conflation refers to a combining of two digital maps to produce third map which is better than each of the component source maps.In this study,object-oriented technology is used to develop Map Conflation and Updating System.Map Conflation and Updating System provides fundamental GIS functionality and map conflation capability.Making use of this system,users may follow system instructions to perform map updating procedures progressively and have map updated with little amount of labour work.Research result shows that digital map updating can be efficently carried out by map conflation approach.