衛星高解析度數值影像的出現，使得地表上自然與人爲所造成地形的變化可即時地在影像上發現。此時以立體數位影像製圖技術製作數值圖，並將其建立在地理資訊系統資料庫中，使所使用的資料能反映近乎即時的資訊，資料庫建立需要龐大的時間與經費，完成後的資料庫若要與現實的真實環境符合，必須進行資料庫的經常性更新。融接技術可對不同來源資料進行整合，透過共同點蒐尋、三角網建構、橡皮紙轉換主要程序，完成原有寶貴資料的保存與及時資料的更新。本研究使用融接技術，取交通網路資料進行試驗。採用民國八十年版二萬五千分一之TM2°與民國八十四年版UTM的道路圖爲測試資料。研究實驗發現兩圖最多共同點的最短蒐尋距離量爲40公尺，並利用節點切割線段，完成90%屬性資料的轉換，驗證融接技術於資料更新之效益。

Due to the advent of high resolution satellite imagery, the changes of earth surface by natural and artificial power can be detected almost simultaneously. By the tools of digital photogrammetry workstation, digital mapping system, and geographic information system, the extraction of ground features and update of the geographic data base become feasible and also necessary to ensure correctness and timely information. The main components of Map conflation, include nearest neighborhood searching, Delaunay triangulation, rubber sheeting, provide the function for data base update. The technique ensure the original valuable data can be kept, and the out-dated data can be updated timelinessly. In this article, the history and the processing procedure is briefly discussed. The conflation is tested by using the data from two sources. The results are discussed and some conclusions are drawn from the experiment.