地震灾害后区域生态环境修复三维建模与仿真

地震灾区生态环境复杂，区域修复效果容易受到关联信息的影响，导致修复过程复杂，形成修复碎片化，修复效果不理想。为此设计基于激光扫描的地震灾害后区域生态环境修复的三维模型，通过三维激光扫描原理，获取自然景观和设施的详细位置原始数据；引入平面特征图像分割方法，对原始数据几何纠正，并完成整体数据纠正匹配，根据修正后的生态环境数据，采用法向量实行最小化，获取拼接匹配信息；根据匹配信息进行重采样，完成三维网格模型的构建，获取区域地震灾害后生态环境整体信息；并依据模型构建地形刷物理区域，修复区域地震灾害后的破损地形环境。将该方法应用于某灾区震后生态环境修复工作中，验证得出其可控性较强，且修复后的生态环境破碎化与缩小率都低于其他修复方法，具有一定使用价值。

Three-dimensional Modeling and Simulation of Regional Eco-environmental Restoration after Earthquake Disasters

The ecological environment in an earthquake disaster area is complicated, and area restoration is easily affected by related information. Therefore, the ecological environmental restoration process is complex, and the repair effect is not ideal. In this paper, a three-dimensional model for post-earthquake regional ecological environmental restoration based on laser scanning was designed. Raw data of the tailed position of the natural landscape and facility were acquired through three-dimensional laser scanning. The plane characteristic image segmentation method was used to geometrically correct the original data. Whole data correction and matching was then completed. The normal vector was then used to minimize the modified ecological environment data, and splicing and matching information was obtained. According to the matching information, the re-sampling was carried out to construct the three-dimensional grid model and obtain the overall data from the ecological environment after a regional earthquake disaster. Based on the model, the physical area of the terrain brush was constructed to repair the damaged terrain environment after the earthquake disaster. The method was then applied to the restoration of the ecological environment after the earthquake in a certain disaster area. Results proved that the method has use value.