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Tianchang Shen

9 accepted papers

2026

ChronoEdit: Towards Temporal Reasoning for In-Context Image Editing and World Simulation

ICLR 2026poster

Recent advances in large generative models have significantly advanced image editing and in-context image generation, yet a critical gap remains in ensuring physical consistency, where edited objects must remain coherent. This capability is especially vital for world simulation related tasks. In thi…

Cited by 0SourcecodeScholar
2026

Lyra: Generative 3D Scene Reconstruction via Video Diffusion Model Self-Distillation

ICLR 2026poster

The ability to generate virtual environments is crucial for applications ranging from gaming to physical AI domains such as robotics, autonomous driving, and industrial AI. Current learning-based 3D reconstruction methods rely on the availability of captured real-world multi-view data, which is not…

Cited by 0SourcecodeScholar
2025

GEN3C: 3D-Informed World-Consistent Video Generation with Precise Camera Control

CVPR 2025highlight

We present GEN3C, a generative video model with precise Camera Control and temporal 3D Consistency. Prior video models already generate realistic videos, but they tend to leverage little 3D information, leading to inconsistencies, such as objects popping in and out of existence. Camera control, if i…

2025

InfiniCube: Unbounded and Controllable Dynamic 3D Driving Scene Generation with World-Guided Video Models

ICCV 2025poster

We present InfiniCube, a scalable and controllable method to generate unbounded and dynamic 3D driving scenes with high fidelity.Previous methods for scene generation are constrained either by their applicability to indoor scenes or by their lack of controllability.In contrast, we take advantage of…

Cited by 0SourcePDFScholar
2023

Neural Fields Meet Explicit Geometric Representations for Inverse Rendering of Urban Scenes

CVPR 2023poster

Reconstruction and intrinsic decomposition of scenes from captured imagery would enable many applications such as relighting and virtual object insertion. Recent NeRF based methods achieve impressive fidelity of 3D reconstruction, but bake the lighting and shadows into the radiance field, while mesh…

Cited by 89SourcePDFScholar
2022

Extracting Triangular 3D Models, Materials, and Lighting From Images

CVPR 2022oral

We present an efficient method for joint optimization of topology, materials and lighting from multi-view image observations. Unlike recent multi-view reconstruction approaches, which typically produce entangled 3D representations encoded in neural networks, we output triangle meshes with spatially-…

Cited by 404PDFcodeScholar
2022

GET3D: A Generative Model of High Quality 3D Textured Shapes Learned from Images

NeurIPS 2022accept

As several industries are moving towards modeling massive 3D virtual worlds, the need for content creation tools that can scale in terms of the quantity, quality, and diversity of 3D content is becoming evident. In our work, we aim to train performant 3D generative models that synthesize textured me…

2021

Deep Marching Tetrahedra: a Hybrid Representation for High-Resolution 3D Shape Synthesis

NeurIPS 2021poster

We introduce DMTet, a deep 3D conditional generative model that can synthesize high-resolution 3D shapes using simple user guides such as coarse voxels. It marries the merits of implicit and explicit 3D representations by leveraging a novel hybrid 3D representation. Compared to the current implicit…

2020

Interactive Annotation of 3D Object Geometry using 2D Scribbles

ECCV 2020poster

Inferring detailed 3D geometry of the scene is crucial for robotics applications, simulation, and 3D content creation. However, such information is hard to obtain, and thus very few datasets support it. In this paper, we propose an interactive framework for annotating 3D object geometry from both po…

Cited by 17SourcePDFScholar