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根据遥感影像路上桥梁的光谱特征和几何结构特征,提出了一种高分辨率遥感影像路上桥梁的识别方法。首先,利用道路矢量数据确定道路缓冲区,对缓冲区边缘进行检测与矢量化;然后,去除道路两边的防护带、道路上的车辆、道路绿化带、交通标志线等的干扰,以及去除桥梁本身的阴影确定路上桥梁的平行边;最后,利用几何参数完成路上桥梁目标的识别。试验结果表明,该方法能有效识别出高分辨率遥感影像路上桥梁。
According to the spectral characteristics and geometric structural features of bridges on remote sensing images, a method of identifying bridges on the road with high resolution remote sensing images is proposed. Firstly, the road buffer is determined by using the road vector data to detect and vectorize the edge of the buffer zone. Then, the protective strips on both sides of the road, the vehicles on the road, the road green belt, the traffic signs and the like are removed, and the bridge itself is removed The shadow of the road to determine the parallel sides of the bridge; Finally, the use of geometric parameters to complete the bridge on the road recognition. Experimental results show that this method can effectively identify high-resolution remote sensing images of bridges on the road.