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Xiao-Xiao Long

8 accepted papers

2026

ComGS: Efficient 3D Object-Scene Composition via Surface Octahedral Probes

ICLR 2026poster

Gaussian Splatting (GS) enables immersive rendering, but realistic 3D object–scene composition remains challenging. Baked appearance and shadow information in GS radiance fields cause inconsistencies when combining objects and scenes. Addressing this requires relightable object reconstruction and sc…

Cited by 0SourcecodeScholar
2026

DanceTogether: Generating Interactive Multi-Person Video without Identity Drifting

ICLR 2026poster

Controllable video generation (CVG) has advanced rapidly, yet current systems falter when more than one actor must move, interact, and exchange positions under noisy control signals. We address this gap with DanceTogether, the first end-to-end diffusion framework that turns a single reference image…

Cited by 0SourceScholar
2026

LiteVGGT: Boosting Vanilla VGGT via Geometry-aware Cached Token Merging

CVPR 2026

3D vision foundation models like Visual Geometry Grounded Transformer (VGGT) have advanced greatly in geometric perception. However it is time-consuming and memory-intensive for long sequences, limiting application to large-scale scenes beyond hundreds of images. To address this, we propose LiteVGGT

Cited by 0SourcecodeScholar
2026

NeuralGS: Bridging Neural Fields and 3D Gaussian Splatting for Compact 3D Representations

AAAI 2026technical

3D Gaussian Splatting (3DGS) achieves impressive quality and rendering speed, but with millions of 3D Gaussians and significant storage and transmission costs. In this paper, we aim to develop a simple yet effective method called NeuralGS that compresses the original 3DGS into a compact representati

Cited by 0SourcePDFScholar
2026

OLATverse: A Large-scale Real-world Object Dataset with Precise Lighting Control

CVPR 2026

We introduce OLATverse, a large-scale dataset comprising around 9M images of 765 real-world objects, captured from multiple viewpoints under a diverse set of precisely controlled lighting conditions. While recent advances in object-centric inverse rendering, novel view synthesis and relighting have

Cited by 0SourcecodeScholar
2026

SpatialVID: A Large-Scale Video Dataset with Spatial Annotations

CVPR 2026

Significant progress has been made in spatial intelligence, spanning both spatial reconstruction and world exploration. However, the scalability and real-world fidelity of current models remain severely constrained by the scarcity of large-scale, high-quality training data. While several datasets pr

Cited by 0SourcecodeScholar
2025

Boost 3D Reconstruction using Diffusion-based Monocular Camera Calibration

ICCV 2025poster

In this paper, we present DM-Calib, a diffusion-based approach for estimating pinhole camera intrinsic parameters from a single input image. Monocular camera calibration is essential for many 3D vision tasks. However, most existing methods depend on handcrafted assumptions or are constrained by limi…

2025

Epona: Autoregressive Diffusion World Model for Autonomous Driving

ICCV 2025poster

Diffusion models have demonstrated exceptional visual quality in video generation, making them promising for autonomous driving world modeling. However, existing video diffusion-based world models struggle with flexible-length, long-horizon predictions and integrating trajectory planning. This is be…