Point Cloud Data Streamlining And Surface Reconstruction Of Car Seat

With China’s rapid economic development, the process of industrialization progresses,China’s automobile industry has achieved rapid development. The car seat is an importantpart of the car brand, the industrial design in China started relatively late, both for the carseat design or manufacturing process with foreign countries have relatively large gap. Nowthe car on the market for industrial design software CAD software, need to be able to getdata reverse engineering used scanner software for editing, and then on this basis the seat.Streamlined point cloud data is an important means of reverse engineering, the mainmethod of the first phase of the bounding box method, no obvious geometric distributioncharacteristics of scattered point cloud data, presented in a disheveled state sequence, so wecan establish an appropriate data constitute the point cloud data structure, usually in athree.dimensional graphics computer graphics that can take advantage of the octree.Streamline the law of the bounding box octree data constitute image streamline. There areBSP tree streamline method, the BSP tree that is binary space partition tree, it is a binarytree, the space gradually split into two. Iterative segmentation, each partition must select adifferent split faces based on the current node, the current point is divided into two parts.Collection of streamlined point is the final form of the BSP tree leaf node, differentmethods of streamlining each collection center point method, for example, select and retainkey points.This paper summarizes the different methods of streamlining, streamlined hierarchicalmethod into a two dimensional data, compare adjacent layer two.dimensional datadistribution similarity to determine whether to streamline the layer, and then draw on thestreamlining of the three.dimensional data streamlined, layer by layer. Summarizes thedifferent triangulation method, the data triangulation.The research results of this paper havesuccessfully passed the acceptance of the Science and Technology Department of JilinProvince car seat project, at the same time has already applied a software copyright.