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1. 发明申请

US20080298638A1 MAP CHANGE DETECTION DEVICE, MAP CHANGE DETECTION METHOD, AND PROGRAM 有权
标题翻译：地图变更检测装置，地图变更检测方法及程序
公开(公告)号：US20080298638A1
公开(公告)日：2008-12-04
申请号：US12125649
申请日：2008-05-22
申请人： TOHRU MIYAZAKI
发明人： TOHRU MIYAZAKI
IPC分类号： G06K9/00
CPC分类号： G06K9/00637 , G06K9/00664 , G06K9/00704 , G06T7/20 , G06T2200/04 , G06T2207/10021 , G06T2207/10032 , G06T2207/30181
摘要： Changes in houses and buildings on a two-dimensional map are detected using three-dimensional data obtained from stereo images. A change detection device that detects changes in features that are targets described on a map has a stereo processor, a feature height calculator, and a demolition and/or new building detector. The stereo processor is inputted with a plurality of images taken of predetermined regions from a plurality of different positions, and extracts digital surface model data representing surfaces of the regions in three-dimensional coordinates. The feature height calculator extracts feature heights where an elevation of ground level is subtracted from the digital surface model data extracted by the stereo processor. The demolition and/or new building detector detect changes in the feature that are the targets described on a map by comparing feature height data and map data. An elevation region extractor extracts an elevation region that is a set of points having a height greater than or equal to the predetermined value, compares the elevation region and the map data, and detects changes in the feature constituting the targets.
摘要翻译：使用从立体图像获得的三维数据检测二维地图上的房屋和建筑物的变化。检测在地图上描述的目标的特征的变化的变化检测装置具有立体声处理器，特征高度计算器和拆除和/或新的建筑物检测器。立体声处理器输入从多个不同位置拍摄的预定区域的多个图像，并且提取表示三维坐标中的区域的表面的数字表面模型数据。特征高度计算器提取从由立体声处理器提取的数字表面模型数据中减去地平面高程的特征高度。拆除和/或新建筑物检测器通过比较特征高度数据和地图数据来检测作为地图上描述的目标的特征的变化。高程区域提取器提取高度大于或等于预定值的一组点的高程区域，比较高程区域和地图数据，并检测构成目标的特征的变化。

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