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- 2018
基于栅格填充的直角多边形建筑物轮廓规则化方法
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Abstract:
智慧城市建设需要以城市全面感知与三维建模作为空间基础，而建筑物轮廓的自动提取和规则化则是建筑物三维建模的关键。现有的规则化方法由于只利用了轮廓的局部信息，存在拐点位置极难准确判断且容易漏判误判，规则化之后的轮廓并非规范正交等问题。提出一种基于栅格填充的规则化方法，利用轮廓的整体信息进行规则化，并利用图像处理中的腐蚀、膨胀算法进行优化，无需定位拐点且规则化结果规范正交。实验分析，该算法对噪声点的抑制力强，规则化结果与实际轮廓相似性高，尤其适用于从激光雷达扫描点云、倾斜摄影密集匹配点云中提取的直角多边形建筑物轮廓的规则化
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