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中文摘要：
采用基于小面积去除方法的中值SUSAN噪声点平滑方法，结合高分辨率遥感影像，对DSM中房屋点的提取进行了探讨。实验表明，本方法能有效地从DSM中提取绝大部分建筑物点，有助于建筑物的精确三维重建。
英文摘要：
According to high-resolution remote sensing image and digital surface model （DSM） the three dimensional building models can be automated established. The key of procedure is to obtain the building points from the DSM. Combining high resolution remote sensing image, the small region elimination method and Median-SUSAN filter is discussed for extracting the building points in this paper. The experiment indicats that this method is effectived for obtaining the major part of buitding points from DSM. It is benefit for the building＇s precise three-dimensional reconstruction.
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