The technique of inserting node in reverse is used in NURBS surface subdivision,and a method for the accurate collision detection using distance testing between control points is presented.

• 提出了一种针对非均匀有理B样条(NURBS)曲面的碰撞检测算法,它将节点反插技术引入到NURBS曲面细分中,通过控制点间距离测试进行精确碰撞检测。