Representations Xiao-Ming Fu
Outline Point cloud Signed distance field Implicit function Grid Pixel, Voxel ◇ Quad-tree, Octree Mesh Triangle, Tetrahedron Data structure Halfedge File format Obj, Off
Point cloud Xi P={P1,,PN,},pi= ER3 Zi 3D scanners A set of data points in some coordinate system
𝒫 = {𝒑1, … , 𝒑𝑁𝑣 }, 𝒑𝑖 = 𝑥𝑖 𝑦𝑖 𝑧𝑖 ∈ ℛ3 A set of data points in some coordinate system 3D scanners
Applications scanners ◇Reverse engineering Physical Part Generate Scan Data Create Mesh Finished Assembly Modeling Process Region Group
Applications scanners Digital preservation of cultural heritage sites and objects 009