HD-VGGT: High-Resolution Visual Geometry Transformer

TL;DR

HD-VGGT is a dual-branch transformer architecture that enables efficient, high-resolution 3D reconstruction by combining coarse global predictions with detail refinement, while suppressing unstable features.

Contribution

It introduces a novel dual-branch design and feature modulation technique to improve high-resolution 3D reconstruction efficiency and robustness.

Findings

Achieves state-of-the-art reconstruction quality on high-resolution images.

Effectively suppresses unreliable features in ambiguous regions.

Reduces computational costs compared to full-resolution transformer models.

Abstract

High-resolution imagery is essential for accurate 3D reconstruction, as many geometric details only emerge at fine spatial scales. Recent feed-forward approaches, such as the Visual Geometry Grounded Transformer (VGGT), have demonstrated the ability to infer scene geometry from large collections of images in a single forward pass. However, scaling these models to high-resolution inputs remains challenging: the number of tokens in transformer architectures grows rapidly with both image resolution and the number of views, leading to prohibitive computational and memory costs. Moreover, we observe that visually ambiguous regions, such as repetitive patterns, weak textures, or specular surfaces, often produce unstable feature tokens that degrade geometric inference, especially at higher resolutions. We introduce HD-VGGT, a dual-branch architecture for efficient and robust high-resolution 3D reconstruction. A low-resolution branch predicts a coarse, globally consistent geometry, while a high-resolution branch refines details via a learned feature upsampling module. To handle unstable tokens, we propose Feature Modulation, which suppresses unreliable features early in the transformer. HD-VGGT leverages high-resolution images and supervision without full-resolution transformer costs, achieving state-of-the-art reconstruction quality.