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題名 | 開放街圖之三維建物模型品質評估:以交通大學校區為例=Quality Assessment of the 3D Building Models from OpenStreetMap: A Case Study of NCTU Campus |
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作者 | 張智安; 謝旻哲; | 書刊名 | 航測及遙測學刊 |
卷期 | 21:3 2016.11[民105.11] |
頁次 | 頁199-211 |
分類號 | 440.9 |
關鍵詞 | 自願性地理資訊; 開放街圖; 三維建物模型; Volunteered geographic information; Open street map; 3D building model; |
語文 | 中文(Chinese) |
中文摘要 | 自願性地理資訊( Volunteered Geographic Information, VGI)為地理資訊領域重要的空間資料來源之一,其特點為志工繪製、資料更新便利及資料開放。 VGI的資料品質為一重要的議題,本研究建立開放街圖( OpenStreetMap, OSM)之三維建物模型驗證程序並驗證其精度,由 OSM平台擷取群眾力量建立的三維建物模型,與專業測繪人員使用航照立體像繪製的三維建物模型進行比較分析,分析比較包含建物模型的完整性、形狀差異、面積差異及樓高差異。本研究選定區域為新竹市交通大學, OSM建物模型由該校學生志工繪製,實驗分析成果顯示建物數量的完整性超過 90%;形狀差異主要為建築物輪廓的細緻度;僅二棟建物樓高差異大於一層樓;建物面積差異值多小於 30%。本研究成果顯示,由學生志工在特定區域繪製的三維建物模型,可滿足小比例尺繪圖的應用需求。 |
英文摘要 | Volunteered Geographic Information (VGI) has become an important geospatial data source for GIS applications. The data quality of VGI is an important issue as it is produced by non-professional volunteers. The objectives of this study are to establish the evaluation procedure and analyze the data quality for 3D building models of National Chiao Tung University (NCTU) from Open Street Map (OSM). The reference 3D building models are measured by professional mapping agency using stereo aerial images. The evaluation procedure includes completeness, shape analysis, surface distance analysis and building story analysis. In the experiments, the completeness of building model reached 90%; the shape difference usually occurred on small building parts; only two buildings showed height difference larger than 1 floor; most of the surface distance was better than 30%. The experimental results indicated that the 3D building models from OSM may satisfy the needs of small scale mapping in particular areas. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。