True2Form
True2Form
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DOI：
10.1145/2601097.2601128
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
Bao-Xuan Xu;William Chang;A. Sheffer;A. Bousseau;James McCrae;Karan Singh
中科院分区：
文献类型：
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作者：
Bao-Xuan Xu;William Chang;A. Sheffer;A. Bousseau;James McCrae;Karan Singh
True 2Form是一个基于草图的建模系统，可以从典型的设计草图中重建3D曲线。我们从2D图纸中推断3D形式的方法是一种新颖的数学框架，来自感知和设计文献的见解。我们注意到，设计师青睐的观点，最大限度地揭示3D形状信息，并战略性地描绘描述曲线，传达内在的形状属性，如曲率，对称性，或平行。研究表明，观众有选择地应用这些属性来想象一个全球一致的3D形状。我们在算法上模拟这种选择性正则化，通过逐步检测和执行适用的属性，考虑它们对不断发展的3D曲线网络的全局影响。在每一步中平衡规则性强制与草图保真度，使我们能够纠正徒手草图中固有的不准确性。我们感知验证我们的方法，我们的算法和观众之间的协议，在选择适用的广告。我们进一步评估我们的解决方案：重建一系列的3D模型，从dilemos来源的草图;与现有技术的比较;和视觉比较，地面实况和3D重建的设计师。
True2Form is a sketch-based modeling system that reconstructs 3D curves from typical design sketches. Our approach to infer 3D form from 2D drawings is a novel mathematical framework of insights derived from perception and design literature. We note that designers favor viewpoints that maximally reveal 3D shape information, and strategically sketch descriptive curves that convey intrinsic shape properties, such as curvature, symmetry, or parallelism. Studies indicate that viewers apply these properties selectively to envision a globally consistent 3D shape. We mimic this selective regularization algorithmically, by progressively detecting and enforcing applicable properties, accounting for their global impact on an evolving 3D curve network. Balancing regularity enforcement against sketch fidelity at each step allows us to correct for inaccuracy inherent in free-hand sketching. We perceptually validate our approach by showing agreement between our algorithm and viewers in selecting applicable regularities. We further evaluate our solution by: reconstructing a range of 3D models from diversely sourced sketches; comparisons to prior art; and visual comparison to both ground-truth and 3D reconstructions by designers.