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首页> 外文期刊>ISPRS Journal of Photogrammetry and Remote Sensing >Automatic detection of residential buildings using LIDAR data and multispectral imagery
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Automatic detection of residential buildings using LIDAR data and multispectral imagery

机译：使用LIDAR数据和多光谱图像自动检测住宅建筑物

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摘要

This paper presents an automatic building detection technique using LIDAR data and multispectral imagery. Two masks are obtained from the LIDAR data: a 'primary building mask' and a 'secondary building mask'. The primary building mask indicates the void areas where the laser does not reach below a certain height threshold. The secondary building mask indicates the filled areas, from where the laser reflects, above the same threshold. Line segments are extracted from around the void areas in the primary building mask. Line segments around trees are removed using the normalized difference vegetation index derived from the orthorectified multispectral images. The initial building positions are obtained based on the remaining line segments. The complete buildings are detected from their initial positions using the two masks and multispectral images in the YIQ. colour system. It is experimentally shown that the proposed technique can successfully detect urban residential buildings, when assessed in terms of 15 indices including completeness, correctness and quality.
机译：本文提出了一种使用LIDAR数据和多光谱图像的自动建筑物检测技术。从LIDAR数据获得两个蒙版：“主要建筑蒙版”和“次要建筑蒙版”。主建筑遮罩指示激光未达到特定高度阈值以下的空白区域。辅助建筑物遮罩指示高于同一阈值的被激光反射的填充区域。线段是从主要建筑遮罩中的空隙区域周围提取的。树木周围的线段使用源自正射多光谱图像的归一化差异植被指数去除。根据剩余的线段获得初始建筑物位置。使用YIQ中的两个蒙版和多光谱图像从其初始位置检测完整的建筑物。色彩系统。实验表明，该技术在完整性，正确性和质量这15个指标上进行评估时，可以成功检测城市住宅建筑。

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