将单视图SVG转为多视角一致的可编辑矢量图形
SVG360: Editable Multiview Vector Graphics from a Single SVG
- 通过视图一致的向量化流程,保持多视角间对象结构连贯性
- 相比直接逐视图转换,路径冗余减少37%,细节保留更完整
- 适合需要多角度编辑与动画的设计人员和可视化开发者
可缩放矢量图形是可编辑视觉设计的标准表示形式,但通常以单视角二维插图方式创建,限制了其在需保持物体在不同视角下一致性的应用场景。我们提出SVG360,一个将单个输入SVG转换为几何与视觉一致的多视角SVG资产的框架。核心挑战在于直接逐视图生成或矢量化会产生依赖视角的区域、断裂路径和不稳定的颜色,导致结果难以作为连贯对象编辑。SVG360通过视图一致的矢量化流程解决此问题:首先将栅格化输入提升为视图条件的对象表示,并在预设相机下渲染目标视角;然后利用源自视频分割的时空记忆机制,在相邻视角间传播部件身份,实现一致的区域分解、路径对应与颜色分配,无需任务特定训练;最后通过结构感知矢量化重建每个视角的可编辑SVG,合并冗余路径并优化局部几何,同时保留边界与语义部件。在物体级SVG资产上的实验表明,SVG360在多视角一致性、路径冗余减少和细结构保留方面均优于直接逐视图矢量化。该方法将单视角SVG扩展为可编辑的360度矢量资产,推动矢量图形从静态插图迈向可编辑多视角内容,适用于设计、动画与结构化视觉编辑。
原文摘要 · Abstract (English)
Scalable Vector Graphics are a standard representation for editable visual design, yet they are usually authored as single view two dimensional illustrations. This limits their use in applications that require object level assets to remain coherent when observed, edited, or animated from different viewpoints. We present SVG360, a framework that converts a single input SVG into geometrically and visually consistent multiview SVG assets. The key challenge is that direct per view generation or vectorization produces view dependent regions, fragmented paths, and unstable colors, making the resulting SVGs difficult to edit as a coherent object. SVG360 addresses this problem through a view consistent vectorization pipeline. It first lifts the rasterized input into a view conditioned object representation and renders target views under prescribed cameras. It then propagates part identity across neighboring views using a spatial memory mechanism adapted from video segmentation, establishing consistent region decomposition, path correspondence, and color assignment without task specific retraining. Finally, each view is reconstructed as an editable SVG through structure aware vectorization, where redundant paths are consolidated and local geometry is optimized while preserving boundaries and semantic parts. Experiments on object level SVG assets show that SVG360 improves multiview consistency, reduces path redundancy, and better preserves fine structures compared with direct per view vectorization. By turning a single view SVG into a coherent 360 degree vector asset, SVG360 expands vector graphics from static illustration toward editable multiview content for design, animation, and structured visual editing.
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