利用复合迭代策略进行断裂等高线重建

发布时间：2019-03-09 08:30

【摘要】：多种原因导致彩色栅格地形图分割后得到的等高线图像中存在大量断线,断裂等高线重建是目前的一个研究热点。分析了近5年来4种最新方法的优缺点,在模拟和分解人工智能识别判断过程的基础上,提出了一种利用复合迭代策略的断裂等高线重建方法。该方法首先总结归纳了断裂间隙区间和断裂形态的划分规律,然后制定了多种算法、运行参数、图像数据源相结合的增量式循环迭代断点匹配连接策略,对断点方向角和方向差异算法进一步优化改进,建立了断点方向差异约束规则,最终实现了各种复杂情况下的断点正确匹配连接。实验结果表明,该方法的处理效果和定量指标均优于几种最新方法,具有更好的稳定性和适用性。
[Abstract]:Many reasons lead to a large number of broken lines in the contour images obtained from the segmentation of color grid topographic maps, and the reconstruction of the contour lines is a hot research topic at present. The advantages and disadvantages of four new methods in the past five years are analyzed. Based on the simulation and decomposition of the identification and judgment process of artificial intelligence, a new method of fault contour reconstruction using composite iterative strategy is proposed. In this method, the division rules of fracture gap interval and fracture form are summarized firstly, and then several algorithms, running parameters and image data sources are formulated, and the incremental iterative break point matching connection strategy is proposed, which is based on the combination of several algorithms, operation parameters and image data sources. The algorithm of direction angle and direction difference of breakpoint is further optimized and improved, and the constraint rule of direction difference of breakpoint is established. Finally, the correct matching connection of breakpoint under various complicated conditions is realized. The experimental results show that the treatment effect and quantitative index of this method are better than that of several new methods, and it has better stability and applicability.
【作者单位】：信息工程大学地理空间信息学院;西安测绘总站;西安测绘研究所数字制图与地理信息研究室;地理信息工程国家重点实验室;
【基金】：国家自然科学基金(41271447)~~
【分类号】：P208

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