Accurate Extraction of Cableways Based on the LS-PCA Combination Analysis Method

In order to maintain a ski resort efficiently, regular inspections of the cableways are essential. However, there some difficulties in discovering and observing cable car resort. This paper proposes high-precision segmentation extraction method based on 3D laser point cloud data collected by airborne lidar address these problems. this method, first, an elevation filtering algorithm is used remove ground points low-height vegetation, followed preliminary cableway using spatial distribution characteristics cloud. The ropeway then completed least squares-principal component combination analysis for parameter fitting. Additionally, we selected three samples from National Alpine Ski Center be as test objects. real value determined number clouds manually deducted CloudCompare. accuracy defined ratio extracted extracted. While environmental complexities differ, proposed capable segmenting extracting with great accuracy, achieving comprehensive effective rate 90.59%, which sufficient meet project’s requirements.