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- 空地一体精细化三维模型构建方法
- 作者： 卞敏 徐亮 骆元鹏 周晓波 赵慧峰 杨化超 来源： 测绘通报 年份： 2019 文献类型 ： 期刊 关键词： 空地一体 低空倾斜摄影测量 无人机 精细化建模 三维重建
- 描述： 无人机倾斜摄影测量技术因其成本低、效率高,成为大场景三维重建的首选,而在倾斜摄影三维重建中常常伴随着模型变形、纹理缺失等。本文基于低空倾斜摄影测量技术建设三维数字化校园,针对重建后不同类型地物出现
- 一种航空影像的三维重建全局优化方法
- 作者： 杨阿华 张强 杨阿锋 常鑫 来源： 测绘科学 年份： 2023 文献类型 ： 期刊 关键词： 全局优化 SBA 共面约束 光束法平差 三维重建
- 描述： 针对大规模航空影像三维重建全局优化的存储开销大、无法整体求解的问题,提出了一种改进的全局优化方法。该方法基于同名点对应的同名光线与基线共面这一约束,以相机参数为未知量,由影像间的同名点建立约束方程组
- 航空制造中空间分布圆孔三维定位技术研究
- 作者： 范云龙 王海亮 毛定群 叶南 来源： 航空制造技术 年份： 2025 文献类型 ： 期刊 关键词： 视觉测量 机加圆孔 多视图几何 椭圆提取 三维重建
- 描述： 航空制造中空间分布圆孔三维定位技术研究
- Characterization of the Fels Landslide (Alaska) Using Combined Terrestrial, Aerial, and Satellite Remote Sensing Data
- 作者： Davide Donati Doug Stead Bernhard Rabus Jeanine Engelbrecht John J. Clague Stephen D. Newman Mirko Francioni 来源： Remote Sensing 年份： 2023 文献类型 ： 期刊 关键词： Motion multisensor SAR Analysis LiDAR displacement from landslide monitoring characterization structure
- 描述： The characterization of landslides located in remote areas poses significant challenges due to the costs of reaching the sites and the lack of reliable subsurface data to constrain geological interpretations. In this paper, the advantages of combining field and remote sensing techniques to investigate the deformation and stability of rock slopes are demonstrated. The characterization of the Fels landslide, a large, slowly deforming rock slope in central Alaska, is described. Historical aerial imagery is used to highlight the relationship between glacier retreat and developing instability. Airborne laser scanning (ALS) and Structure-from-Motion (SfM) datasets are used to investigate the structural geological setting of the landslide, revealing a good agreement between structural discontinuities at the outcrop and slope scales. The magnitude, plunge, and direction of slope surface displacements and their changes over time are studied using a multi-temporal synthetic aperture radar speckle-tracking (SAR ST) dataset. The analyses show an increase in displacement rates (i.e., an acceleration of the movement) between 2010 and 2020. Significant spatial variations of displacement direction and plunge are noted and correlated with the morphology of the failure surface reconstructed using the vector inclination method (VIM). In particular, steeper displacement vectors were reconstructed in the upper slope, compared to the central part, thus suggesting a change in basal surface morphology, which is largely controlled by rock mass foliation. Through this analytical approach, the Fels landslide is shown to be a slow-moving, compound rockslide, the displacement of which is controlled by structural geological features and promoted by glacier retreat.