融合优选特征与最优分割参数的矿山开采占地信息提取

    Extraction of mining land occupation information by integrating optimized features and optimal segmentation parameters

    • 摘要: 在矿产资源的开发利用过程中,矿区开采活动对地表环境的影响日益受到关注。传统的矿山开采占地信息提取方法在准确性和可靠性方面存在一定的局限性。为了提高信息提取的精度和效率,本文提出了一种融合优选特征与最优分割尺度的矿山开采占地信息提取方法。该方法以高分辨率的GF-2卫星数据为数据源,通过欧几里得二指数法计算非矿山开采占地信息的最优分割参数,并结合图像分割技术确定开采占地和裸地的最佳分割尺度。在特征选择方面,本研究综合考虑了光谱、纹理和形状特征,通过对特征因子的重要性进行选择,以增强分类模型的性能。选定的特征与随机森林(RF)算法相结合,构建了最优参数的分类模型,用于研究区域内地表信息的提取。实验结果表明,本研究提出的方法在矿区地表信息提取方面取得了显著的效果。总体精度达到了86.00%,Kappa系数为0.78,相较于CART模型有所提高。这表明欧几里得二指数法与图像分割工具的结合能够有效获取矿区地物的最优分割参数,从而提高信息提取的精度。本方法不仅适用于矿山开采占地的前期遥感解译工作,还有助于快速准确地识别主要矿山开采占地,提高解译的精度和效率。综上所述,本研究提出的方法为矿区开采占地信息提取提供了一种新的思路和技术手段,对于矿产资源开发过程中的环境保护和管理具有重要的意义。

       

      Abstract: In the process of developing and utilizing mineral resources, the impact of mining activities in mining areas on the surface environment is increasingly receiving attention. Traditional methods for extracting mining land occupation information exhibit certain limitations in terms of accuracy and reliability. To improve the precision and efficiency of information extraction, this paper proposes a method for extracting mining land occupation information by integrating optimized features and an optimal segmentation scale. This method uses high-resolution GF-2 satellite data as the data source, calculates the optimal segmentation parameters for non-mining land occupation information through the Euclidean II index method, and combines image segmentation technology to determine the optimal segmentation scale for mining land occupation and bare land. In terms of feature selection, this study comprehensively considers spectral, textural, and shape features. By selecting feature factors based on their importance, the performance of the classification model is enhanced. The selected features are associated with the Random Forest (RF) algorithm to construct a classification model with the optimal parameters for extracting surface information within the study area. The experimental results indicate that the method set out in the present study has achieved significant results in extracting surface information from mining areas. The overall accuracy reaches 86.00%, the Kappa coefficient is 0.78, which is an improvement compared to the CART model. This suggests that the combination of Euclidean II index method and image segmentation tools can effectively obtain the optimal segmentation parameters of mining area features, thereby improving the accuracy of information extraction. This method is not only applicable to the primary remote sensing interpretation of mining land occupation, but also helps to quickly and accurately identify the main mining land occupation, improve the accuracy and efficiency of interpretation. In summary, the method presented in this study offers a new approach and technical means for extracting mining land occupation information, which holds significant importance for environmental protection and management in the process of mineral resource development.

       

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