基于视频帧特征区域质心轨迹分析的滑坡变形监测研究

    RESEARCH ON LANDSLIDE DEFORMATION MONITORING USING CENTROID TRAJECTORY ANALYSIS OF VIDEO FRAME FEATURE REGIONS

    • 摘要: 滑坡等地质灾害具有突发性强、成因复杂的特点,尤其在破碎地质体与松散岩土体等复杂地质环境中难以准确预测,常导致重大人员伤亡与财产损失。因此,发展实时、高精度的滑坡变形监测技术具有重要现实意义。本研究提出一种融合机器视觉与质心分析的算法,并基于该算法开发了一套集变形特征智能识别、实时位移监测与预警功能于一体的软件系统。该系统实现了滑坡监测点视频数据的自动采集、连续处理与智能分析,通过高性能图像处理算法精确解算位移矢量,并动态输出特征点运动轨迹图。鉴于研究区当前未发生明显变形,为验证系统的识别精度、时效性与可靠性,开展了室内物理滑坡模型试验,对不同变形过程的识别结果进行了对比分析。试验结果表明,该系统能够稳定、高效地捕捉滑坡变形的全过程,准确识别变形特征(包括位移方向、量级及关键点运动规律),并具备良好的抗干扰能力(如应对光照变化、雨雾遮挡等)与近实时响应能力。该系统为滑坡灾害的早期识别与过程追踪提供了经济有效的技术手段,并为风险评估与防治决策提供了数据支持。

       

      Abstract: Landslides and other geological hazards are characterized by their sudden onset and complex triggering mechanisms,making accurate prediction particularly challenging in complex geological environments such as fractured rock masses and unconsolidated soil deposits. Such events frequently result in substantial casualties and economic losses. Therefore,the development of real-time,high-precision landslide deformation monitoring technology is of considerable practical importance. This study proposes an algorithm that integrates machine vision and centroid analysis,and based on this approach,a software system has been developed with capabilities for intelligent deformation feature recognition,real-time displacement monitoring,and early warning. The system enables automated acquisition,continuous processing,and intelligent analysis of video data from landslide monitoring points. It accurately computes displacement vectors using high-performance image processing algorithms and dynamically outputs motion trajectory diagrams of feature points. As no significant deformation has been observed in the study area to date,indoor physical landslide model tests were conducted to validate the system's recognition accuracy,timeliness,and reliability. A comparative analysis of identification results under different simulated deformation scenarios was performed. The test results demonstrate that the system can stably and efficiently capture the complete landslide deformation process,accurately identify deformation characteristics,including displacement direction,magnitude,and movement patterns of key points,and exhibits strong anti-interference capabilities against factors such as lighting variations,rainfall,and fog. It also achieves near-real-time response performance. This system provides a cost-effective technical solution for the early identification and continuous tracking of landslide hazards,while also supplying valuable data for risk assessment and disaster prevention decision-making.

       

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