Line accessibility of free form surfaces
作者: Aviv SegallJonathan MizrahiYong Joon KimGershon Elber
作者单位: 1Department of Computer Science, Technion, 32000 Haifa, Israel
2Department of Mathematics, Technion, 32000 Haifa, Israel
刊名: Graphical Models, 2014, Vol.76 (5), pp.301-311
来源数据库: Elsevier Journal
DOI: 10.1016/j.gmod.2014.03.014
关键词: Subdivision solversAlgebraic constraints solvingWire EDMHot wire cuttingVisual hull
英文摘要: Abstract(#br)Given a three dimensional object B ⊂ R 3 , the visual hull of B (a concept introduced by Laurentini in 1992) is the smallest set V B ⊂ R 3 containing B with the following property: for each point p on the boundary of V B there exists a direction from which p is on a silhouette of V B . The notion of the visual hull has applications in computer graphics (visibility and silhouette based algorithms), manufacturing (accessibility, wire EDM and hot wire cutting), and more.(#br)We present a tractable algorithm for computing a decomposition of a C 1 smooth, closed parametric surface S ⊂ R 3 , positioned in an arrangement with other occluding surfaces, into those regions that belong to the visual hull and those that do not (later referred to as the “line-accessible” or...
全文获取路径: Elsevier  (合作)
影响因子:0.697 (2012)

  • accessibility 可达性
  • cutting 伐木
  • solving 求解
  • constraints 系统规定参数
  • EDM Electronic Drafting Machine