自动设计能呈现正反双面视觉错觉的3D打印物体，无需手动调整。
Mirror Illusion Art
- 联合优化形状与颜色，实现正反双视图一致的视觉效果。
- 仅需约76秒、2.6GB内存即可生成光滑无瑕疵的3D作品。
- 适合数字艺术创作与计算设计领域研究者参考使用。
镜像幻象艺术是一种新型反射条件下的3D视觉错觉，使单一物体在正面和镜像中呈现出两个目标外观。该任务被定义为从两个目标2D图像（正面与镜像）逆向设计可打印的3D物体（含几何与纹理）。以往基于拓扑或阴影的方法依赖大量人工干预，仅优化形状，常导致几何不连续或不完整。为此，本文提出AutoMIA自动化设计流程，联合优化形状与颜色。通过四个机制提升稳定性并抑制伪影：(1) 投影对齐组件（PAC）选择以减少表面噪声；(2) 位置加权自适应（PWA）抑制背景噪声；(3) 内部体素保留（IVP）防止内部断裂；(4) 形状-颜色解耦（SCD）优化以平衡二者训练。AutoMIA成功生成多样化的光滑镜像幻象艺术作品，无论在数字还是物理世界中均表现良好，平均仅需76秒设计时间与2.6GB内存，基于单张RTX 3090显卡。代码已开源于https://github.com/zxp555/AutoMIA。
原文摘要 · Abstract (English)
Mirror Illusion Art is a novel reflection-conditioned 3D illusion where one object yields two target appearances (front and mirror). The task is formulated as inverse design from two target 2D images (front and mirror) to a printable 3D object with geometry and texture. Prior topology-driven and shadow-based approaches demand substantial manual effort, optimize shape only, and often yield non-smooth or incomplete geometry. To address these challenges, we propose AutoMIA, an automated Mirror Illusion Art design pipeline that jointly optimizes shape and color. To stabilize optimization and suppress artifacts, four mechanisms are introduced: (1) projection-alignment component (PAC) selection to reduce surface noise, (2) position-weighted adaptive (PWA) suppression for background noise, (3) internal voxel preservation (IVP) to prevent internal fractures, and (4) shape-color decoupled (SCD) optimization that balance shape and color optimization. AutoMIA generate diverse smooth Mirror Illusion artworks successfully both in the digital and physical world, with only around 76s design time and 2.6 GB memory on average using a single RTX 3090, advancing inverse graphics and computational design. Our code is available at https://github.com/zxp555/AutoMIA.
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