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題名 | 圖層套疊空間誤差傳播之探討=On Propagation of Spatial Errors in GIS Overlay Operations |
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作者 | 蔡榮得; 李佳龍; | 書刊名 | 測量工程 |
卷期 | 39:3 1997.09[民86.09] |
頁次 | 頁3-17 |
分類號 | 440.98 |
關鍵詞 | 誤差傳播; 疊圖演算; Error propagation; Overlay operations; |
語文 | 中文(Chinese) |
中文摘要 | 地理資訊系統之觀念及技術自發展以來,已經成為輔助決策分析與資源管理之有效 工具,而其所處理之對象,即地理資料庫中各種與空間位置相關的資料,乃為系統之核心與 主要建置成本。對於如何建立正確或具相當精度之地理資料庫,供各層次之使用者參考與應 用,實為一地理資訊系統成敗之關鍵所在。 本論文應用測量誤差傳播定律,針對地理資訊系統空間分析方法中,推導自數位板點圖、坐 標轉換、圖層套疊等過程之空間誤差傳播行為數學模式,並以實例說明其於地理資訊系統中 資料建立、援引使用、推導產生等空間演算過程中,空間位置誤差對成果之資料品質與應用 的影響。 |
英文摘要 | Geographic Information Systems (GIS) have become effective tools for assisting decision-making and resource management since the development concept and techniques. The subject processed in GIS, i.e., the various kinds of spatially referenced data in the geographic database, are the core and the primary cost when implementing the system. How to establish accurate, or at least with certain level of accuracy, geographic database for end-users' reference and applications is the key to the success of a GIS implementation. This paper explores the mathematical models of spatial error propagation in GIS spatial analyses from digitization, coordinate transformation, to map overlay by applying the law of error propagation in Surveying. Experimental examples were used to visually show the influence of positional errors in the data quality and applications of derived results through data acquisition, data usage, and data reduction in GIS spatial operations. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。