手绘输入的三维建模和编辑技术

对当前基于手绘建模技术的研究现状进行分析,提出一个融合手绘识别与几何约束推理为一体的智能化建模体系,突出了概念建模过程中的逐步提纯、快速三维模型生成和编辑特性;针对手绘输入的二义性,提出对于多笔画连续输入的适应性逻辑推理模型以及自顶向下的约束树求解方法,不断组合历史信息,确定并创建出任意的三维模型.实验结果有效地显示和验证了此技术的高效性.

3D Modeling and Editing Technique by Sketching

Based on the State of the Art about sketch-based research works,we present an intelligent modeling system which combed sketching recognition with geometric constraint reasoning.It addresses the issue of exploiting the stepwise refinement process and fast editing functions typical of conceptual designing.Further aiming at the ambiguity of the sketching input,it makes use of adaptive constraint reasoning techniques for multi-input sketches by introducing a decision-tree structure for top-down designing,the 3D...