卫星图秒变3D世界，AI造地球只要10分钟每平方公里
你看到的3D地图大多是手工建模或激光扫描，成本高、更新慢。现在有个叫ABot-Earth 0.5的AI，只看卫星照片就能自动生成逼真的3D城市，每平方公里不到10分钟，还能在网页上实时浏览。它用了一种叫3D高斯泼溅的技术，直接学习真实城市的样子，然后根据卫星图“脑补”出完整的立体场景。虽然你明天用不上它来造自己的房子，但无人机、自动驾驶的模拟训练从此有了无限逼真的虚拟世界，再也不用担心真实数据不够用了。
📄 原文摘要(英文)
We present ABot-Earth 0.5, a generative 3D framework designed to synthesize vast, seamless 3D environments from ubiquitous, geospatially referenced satellite imagery. To achieve this, we propose a novel generative model formulated directly with the 3D Gaussian Splatting (3DGS) representation. The model is trained on a diverse corpus of existing real-world urban reconstructions, learning to generate realistic geometry and textures. At inference, it synthesizes novel 3D scenes conditioned solely on satellite imagery at a scalable rate of under 10 minutes per square kilometer, while demonstrating exceptional realism. The framework is designed for accessibility, with integrated hierarchical level-of-detail (LOD) structures that permit real-time, interactive visualization on web-based map engines. This high-fidelity simulation sandbox effectively mitigates the sim-to-real domain gap, enabling critical downstream Embodied AI applications like closed-loop UAV navigation. By providing an ultra-low-cost and high-efficiency solution, ABot-Earth 0.5 significantly lowers the technical and financial barriers to large-scale 3D reconstruction and empowers the future of global digital earth visualization.