At last , an image - based modeling and rendering system is cast , which can display a geometry model with images after sampling six depth images around a model ' s bounding box , displaying geometry models in real - time is realized under ordinary computer 最后本文构建了一个软件系统，能够采样几何模型6个面的深度图像，按包围盒方式对整个模型重新进行基于图像的建模绘制，在微机上实现了大数据量几何模型的快速实时显示。
Secondly , a new method on man - machine control is proposed . the axis - aligned bounding boxes arithmetic ( aabb ) and sphere area query arithmetic is applied to realize the collision effect of the virtual people in the launch vehicle testing hall 其次,本文对人机交互控制提出了一种新的实现方法,漫游时碰撞检测则采用了轴向包围盒法( axis - alignedboundingboxes : aabb算法)和球体区域查询算法来实现虚拟人物与火箭测试大厅内物体的碰撞效果。
This dissertation presents a concrete deduce for factoring the 3d image - warping equation ; confirmed the correctness and robustness of id warp and reconstruction ; realizes the whole modeling procedure after sampling six depth images around the model ' s bounding box 本文在理论上详细推导了3dwarp等式的数学分解；实践上系统论证了图像一维warp变换的正确性和健壮性；实现了采样几何模型6个面的深度图像后按包围盒方式重新绘制模型的具体过程。
Then , incremental algorithm for convex hull and gjk algorithm are employed to improve the spilt algorithm ' s performance . then , the thought of uniform - cost search is applied to improve the algorithm . the implement shows that the improved split algorithm is more quickly 并且，根据分裂算法的特点，综合使用求解nurbs曲面控制顶点的凸包围多面体的增量算法和求解凸多面体之间距离的gjk算法替代了包围盒( aabb )算法，对于分裂算法做了改进。
In order to slove collision detection problem in virtual surgery , a fast collision detection algorithm based on oriented bounding box ( obb ) was presented , which simplifies geometric representation to facilitate the process of collision detection between complex geometric objects 摘要为了解决虚拟手术的快速碰撞检测问题，提出了一种新的基于方向包围盒层次树的快速碰撞检测算法，利用简化的几何模型表示一方向包围盒层次树来实现复杂物体间的实时碰撞检测。
The dividing process is recorded by octree , and then we make out the rapid adjacent - field searching algorithm using envelopment - box ' s recursion feature . this algorithm can also kick off some noise - points from the data cloud . it make the consequent process of surface reconstruction more convenience and precise 分割过程采用八叉树来记录，并利用包围盒的递归特性实现了点的邻域的快速搜索算法，同时可以有效地排除噪声点，显著减少了密集散乱数据点云几何建模所花费的时间，提高了建模效率。
Put forward several kinds of system optimizing methods . this paper introduces the process of 3d max models input opengl , interaction , and implemention of the bounding box collision detection methods , and illustrates the process and technology of system optimizing methods such as multi - display list , double buffer , system startging speed and screen shaking removed when mouse moving 论文对3dmax模型导入opengl的过程、交互操作、包围盒碰撞检测方法的实现作了具体介绍，阐述了多重显示列表、双缓存技术、系统启动速度和鼠标移动屏幕晃动消除等系统优化方法的实现过程。
Based on researching and developing intrinsic character of fixed direction hulls , this paper develops and proves the property which make it can be apply to collision detection in complex environment and resolves the problems about intersection tests between bounding volumes , updating bounding volumes after rotation and updating bounding volume hierarchy after deformation 本文在充分研究了固定方向凸包的固有特性的基础上，开发并证明了它适用于复杂环境中软体碰撞检测的性质，并着重解决了包围盒间的相交测试、对象运动后包围盒的更新、对象变形后包围盒树的更新等问题。
The idea behind it is to approximate the object with a simpler bounding volume that is a little bigger than the object . in building hierarchies on object , one can obtain increasingly more accurate approximations of the objects . so during traversing bounding volume hierarchy , it speeds up collision detection by prune away primitive pairs , which will not intersect clearly though rapid intersection test between bounding volumes and just deal with those whose bounding volume is intersected 层次包围盒方法是解决碰撞检测问题固有时间复杂性的一种有效的方法，它是用体积略大而几何特性简单的包围盒来近似地描述复杂的几何对象，并通过构造树状层次结构来逼近对象的几何模型，从而在对包围盒树进行遍历的过程中，通过包围盒间的快速相交测试来及早地排除明显不可能相交的基本几何元素对，而只对包围盒重叠的部分元素进行进一步的相交测试，以提高碰撞检测的速度。
This paper analysis three kinds of deformations and propose resolving method respectively . a bottom - up updating method is propose especially which can compute the bounding volume of parent node through bounding volumes of the two children by k comparison . furthermore , a traverse tracing strategy that can speed up collision detection is proposed in this paper based on developing and utilizing temporal - spatial coherence in virtual environment 本文在对几种变形情况进行分析的基础上，分别提出了相应的解决方法，并着重提出了一种自底向上的包围盒树快速更新算法，通过k次比较运算由子结点的包围盒得到父结点的包围盒，以解决拉压变形和拓扑变化后包围盒树的更新问题。
