论文标题
LoopDraw：用于形状合成和编辑的基于循环的自回归模型
LoopDraw: a Loop-Based Autoregressive Model for Shape Synthesis and Editing
论文作者
论文摘要
没有许多替代方案（例如点云，网格，隐式函数和体素）的几何形状的通用3D表示。在这项工作中，我们提出了一种新的，引人注目的替代方案，用于使用一系列横截面闭环来表示形状。所有飞机上的循环构成了组织层次结构，我们将利用自回归形状的综合和编辑。循环是对基本形状的非本地描述，因为简单的环操作（例如偏移）会导致几何形状的显着结构变化。这与操纵局部原语相反，例如点云中的点或三角形网格中的三角形。我们进一步证明，循环是直观和天然原始的，用于分析和编辑形状，包括计算和用户。
There is no settled universal 3D representation for geometry with many alternatives such as point clouds, meshes, implicit functions, and voxels to name a few. In this work, we present a new, compelling alternative for representing shapes using a sequence of cross-sectional closed loops. The loops across all planes form an organizational hierarchy which we leverage for autoregressive shape synthesis and editing. Loops are a non-local description of the underlying shape, as simple loop manipulations (such as shifts) result in significant structural changes to the geometry. This is in contrast to manipulating local primitives such as points in a point cloud or a triangle in a triangle mesh. We further demonstrate that loops are intuitive and natural primitive for analyzing and editing shapes, both computationally and for users.
