DreamSat-2.0: Towards a General Single-View Asteroid 3D Reconstruction

• URL: http://arxiv.org/abs/2508.01079v1
• Date: Fri, 01 Aug 2025 21:23:28 GMT
• Title: DreamSat-2.0: Towards a General Single-View Asteroid 3D Reconstruction
• Authors: Santiago Diaz, Xinghui Hu, Josiane Uwumukiza, Giovanni Lavezzi, Victor Rodriguez-Fernandez, Richard Linares,
• Abstract summary: We introduce DreamSat-2.0, a pipeline that benchmarks three state-of-the-art 3D reconstruction models.<n>New benchmarks are established, with Hunyuan-3D achieving top perceptual scores on spacecraft but its best geometric accuracy on asteroids.
• Score: 0.728731933993601
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: To enhance asteroid exploration and autonomous spacecraft navigation, we introduce DreamSat-2.0, a pipeline that benchmarks three state-of-the-art 3D reconstruction models-Hunyuan-3D, Trellis-3D, and Ouroboros-3D-on custom spacecraft and asteroid datasets. Our systematic analysis, using 2D perceptual (image quality) and 3D geometric (shape accuracy) metrics, reveals that model performance is domain-dependent. While models produce higher-quality images of complex spacecraft, they achieve better geometric reconstructions for the simpler forms of asteroids. New benchmarks are established, with Hunyuan-3D achieving top perceptual scores on spacecraft but its best geometric accuracy on asteroids, marking a significant advance over our prior work.

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