دانلود مقاله ISI انگلیسی شماره 151648
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
151648 2018 8 صفحه PDF سفارش دهید 5011 کلمه
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عنوان انگلیسی
Accurate facade feature extraction method for buildings from three-dimensional point cloud data considering structural information
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : ISPRS Journal of Photogrammetry and Remote Sensing, Volume 139, May 2018, Pages 146-153

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چکیده انگلیسی

Facade features represent segmentations of building surfaces and can serve as a building framework. Extracting facade features from three-dimensional (3D) point cloud data (3D PCD) is an efficient method for 3D building modeling. By combining the advantages of 3D PCD and two-dimensional optical images, this study describes the creation of a highly accurate building facade feature extraction method from 3D PCD with a focus on structural information. The new extraction method involves three major steps: image feature extraction, exploration of the mapping method between the image features and 3D PCD, and optimization of the initial 3D PCD facade features considering structural information. Results show that the new method can extract the 3D PCD facade features of buildings more accurately and continuously. The new method is validated using a case study. In addition, the effectiveness of the new method is demonstrated by comparing it with the range image-extraction method and the optical image-extraction method in the absence of structural information. The 3D PCD facade features extracted by the new method can be applied in many fields, such as 3D building modeling and building information modeling.

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