从地图轮廓生成带细节的3D建筑模型，支持几何与外观精准控制。
GeoTexBuild: 3D Building Model Generation from Map Footprints
- 分三阶段生成：先定高度图，再重建几何，最后风格化外观。
- 结合ControlNet与多视角扩散模型，实现结构一致的建筑生成。
- 适合建筑师和城市规划者快速构建高保真3D建筑场景。
我们提出GeoTexBuild，一个模块化的生成框架，可将来自场地规划或地图设计的建筑轮廓直接转化为3D建筑模型。该系统面向建筑师与城市规划者，采用三阶段流程：高度图生成、几何重建与外观风格化，最终输出具备精细几何与视觉属性的建筑模型。通过集成定制化的ControlNet、神经风格场（Neural Style Field, NSF）与多视图扩散模型，有效控制生成过程中的几何与视觉特征。本方法解决了现有建筑3D生成技术中单面图像导致结构不一致的问题。各阶段实验结果验证了GeoTexBuild从轮廓生成细节丰富且准确建筑模型的能力。
原文摘要 · Abstract (English)
We introduce GeoTexBuild, a modular generative framework for creating 3D building models from footprints derived from site planning or map designs. The system is designed for architects and city planners, offering a seamless solution that directly converts map features into 3D buildings. The proposed framework employs a three-stage process comprising height map generation, geometry reconstruction, and appearance stylization, culminating in building models with detailed geometry and appearance attributes. By integrating customized ControlNet, Neural style field (NSF), and Multi-view diffusion model, we explore effective methods for controlling both geometric and visual attributes during the generation process. Our approach eliminates the problem of structural variations in a single facade image in existing 3D generation techniques for buildings. Experimental results at each stage validate the capability of GeoTexBuild to generate detailed and accurate building models from footprints.
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