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利用光達資料於DEM生產及房屋偵測之研究

DEM Generation and Automatic Building Detection Using LIDAR Data

摘要


本文研究利用光達資料進行二種自動化的作業,一是生產數值高程模型,二是偵測房屋區。第一部份主要是利用二種數學形態學的方法,平坦操作及圓頂轉換,在高程空問中自動重建地形以區隔出地物點,藉由保留的地面點來產生數值地表模型。第二部份則延用第一部份的地物點的群聚區塊,切取高度超過3公尺且面積較大的地物區,經斜率差計算後,使用10種統計量來偵測房屋位置。在數值高程模型產製部份,以新竹科學園區及大坑地區為測試區,本文成果與人工過濾成果進行精度評估,得平均值分別為-0.16m和0.07m、均方根誤差分別為0.45m和0.59m。至於房屋偵測部份,在新竹科學園區的測試區之成功率為87.7%。

並列摘要


There are two main parts in our research. The first is to segment objects and to produce digital terrain model by using two mathematical morphology methods, i.e. flattening operation and H-Dome transformation, and control posts. The second is to detect buildings by slice the objects’ height, filtering out small areas and computing their statistics of differential slope on region-based method. There are two test areas, one is around Hsin-Chu Science Based Industry Park, and the other is around Ta-Keng area. The results of accuracy for digital terrain model production are -0.16m and 0.04m for mean, 0.45m and 1.12m for RMSE, respectively. And the successful rate for building detection is 87.7%

並列關鍵字

LIDAR DEM Classification Building Detection

被引用紀錄


謝其亨(2006)。結合光達點雲及航照影像重建直線與圓弧輪廓建物〔碩士論文,國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0207200917340395

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