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Dian Chen

25 accepted papers

2026

Efficient Equivariant Transformer for Self-Driving Agent Modeling

CVPR 2026

Accurately modeling agent behaviors is an important task in self-driving. It is also a task with many symmetries, such as equivariance to the order of agents and objects in the scene or equivariance to arbitrary roto-translations of the entire scene as a whole; i.e., SE(2)-equivariance. The transfor

Cited by 0SourceScholar
2026

ExpoCM: Exposure-Aware One-Step Generative Single-Image HDR Reconstruction

CVPR 2026

Single-image HDR reconstruction aims to recover high dynamic range radiance from a single low dynamic range (LDR) input, but remains highly ill-posed due to detail saturation in over-exposed regions and noise amplification in under-exposed areas. While recent diffusion-based approaches offer powerfu

Cited by 0SourcecodeScholar
2026

MedLesionVQA: A Multimodal Benchmark Emulating Clinical Visual Diagnosis for Body Surface Health

ICLR 2026poster

Body-surface health conditions, spanning diverse clinical departments, represent some of the most frequent diagnostic scenarios and a primary target for medical multimodal large language models (MLLMs). Yet existing medical benchmarks are either built from publicly available sources with limited ex…

Cited by 0SourceScholar
2026

UniLDiff: Unlocking the Power of Diffusion Priors for All-in-One Image Restoration

CVPR 2026

All-in-One Image Restoration (AiOIR) has emerged as a promising yet challenging research direction. To address the core challenges of diverse degradation modeling and detail preservation, we propose UniLDiff, a unified framework enhanced with degradation- and detail-aware mechanisms, unlocking the p

Cited by 0SourceScholar
2026

XSpecMesh: Quality-Preserving Auto-Regressive Mesh Generation Acceleration via Multi-Head Speculative Decoding

ICML 2026poster

Current auto-regressive models can generate high-quality, topologically precise meshes; however, they necessitate thousands—or even tens of thousands—of next-token predictions during inference, resulting in substantial latency. We introduce XSpecMesh, a quality-preserving acceleration method for aut…

Cited by 0SourceScholar
2025

OmniShape: Zero-Shot Multi-Hypothesis Shape and Pose Estimation in the Real World

ICRA 2025

We would like to estimate the pose and full shape of an object from a single observation, without assuming known 3D model or category. In this work, we propose OmniShape, the first method of its kind to enable probabilistic pose and shape estimation. OmniShape is based on the key insight that shape

Cited by 1SourceScholar
2025

Zero-Shot Novel View and Depth Synthesis with Multi-View Geometric Diffusion

CVPR 2025poster

Current methods for 3D scene reconstruction from sparse posed images employ intermediate 3D representations such as neural fields, voxel grids, or 3D Gaussians, to achieve multi-view consistent scene appearance and geometry. In this paper we introduce MVGD, a diffusion-based architecture capable of…

Cited by 0SourcePDFScholar
2024

$SE(3)$ Equivariant Ray Embeddings for Implicit Multi-View Depth Estimation

NeurIPS 2024poster

Incorporating inductive bias by embedding geometric entities (such as rays) as input has proven successful in multi-view learning. However, the methods adopting this technique typically lack equivariance, which is crucial for effective 3D learning. Equivariance serves as a valuable inductive prior,…

Cited by 1SourcePDFScholar
2024

FSD: Fast Self-Supervised Single RGB-D to Categorical 3D Objects

ICRA 2024poster

In this work, we address the challenging task of 3D object recognition without the reliance on real-world 3D labeled data. Our goal is to predict the 3D shape, size, and 6D pose of objects within a single RGB-D image, operating at the category level and eliminating the need for CAD models during inf…

Cited by 13SourcecodeScholar
2024

Learning to Drive via Asymmetric Self-Play

ECCV 2024poster

"Large-scale data is crucial for learning realistic and capable driving policies. However, it can be impractical to rely on scaling datasets with real data alone. The majority of driving data is uninteresting, and deliberately collecting new long-tail scenarios is expensive and unsafe. We propose as…

Cited by 1SourcePDFScholar
2024

pix2gestalt: Amodal Segmentation by Synthesizing Wholes

CVPR 2024highlight

We introduce pix2gestalt a framework for zero-shot amodal segmentation which learns to estimate the shape and appearance of whole objects that are only partially visible behind occlusions. By capitalizing on large-scale diffusion models and transferring their representations to this task we learn a…

2023

Depth Is All You Need for Monocular 3D Detection

ICRA 2023poster

A key contributor to recent progress in 3D detection from single images is monocular depth estimation. Existing methods focus on how to leverage depth explicitly, by generating pseudo-pointclouds or providing attention cues for image features. More recent works leverage depth prediction as a pretrai…

Cited by 11SourcecodeScholar
2023

MotionLM: Multi-Agent Motion Forecasting as Language Modeling

ICCV 2023poster

Reliable forecasting of the future behavior of road agents is a critical component to safe planning in autonomous vehicles. Here, we represent continuous trajectories as sequences of discrete motion tokens and cast multi-agent motion prediction as a language modeling task over this domain. Our model…

Cited by 104PDFScholar
2023

Standing Between Past and Future: Spatio-Temporal Modeling for Multi-Camera 3D Multi-Object Tracking

CVPR 2023poster

This work proposes an end-to-end multi-camera 3D multi-object tracking (MOT) framework. It emphasizes spatio-temporal continuity and integrates both past and future reasoning for tracked objects. Thus, we name it "Past-and-Future reasoning for Tracking" (PF-Track). Specifically, our method adapts th…

2023

Towards Zero-Shot Scale-Aware Monocular Depth Estimation

ICCV 2023poster

Monocular depth estimation is scale-ambiguous, and thus requires scale supervision to produce metric predictions. Even so, the resulting models will be geometry-specific, with learned scales that cannot be directly transferred across domains. Because of that, recent works focus instead on relative d…

Cited by 145PDFcodeScholar
2023

Viewpoint Equivariance for Multi-View 3D Object Detection

CVPR 2023poster

3D object detection from visual sensors is a cornerstone capability of robotic systems. State-of-the-art methods focus on reasoning and decoding object bounding boxes from multi-view camera input. In this work we gain intuition from the integral role of multi-view consistency in 3D scene understandi…

2022

Coopernaut: End-to-End Driving With Cooperative Perception for Networked Vehicles

CVPR 2022poster

Optical sensors and learning algorithms for autonomous vehicles have dramatically advanced in the past few years. Nonetheless, the reliability of today's autonomous vehicles is hindered by the limited line-of-sight sensing capability and the brittleness of data-driven methods in handling extreme sit…

Cited by 121PDFcodeScholar
2022

Multi-Frame Self-Supervised Depth With Transformers

CVPR 2022poster

Multi-frame depth estimation improves over single-frame approaches by also leveraging geometric relationships between images via feature matching, in addition to learning appearance-based features. In this paper we revisit feature matching for self-supervised monocular depth estimation, and propose…

Cited by 109PDFScholar
2021

CARTL: Cooperative Adversarially-Robust Transfer Learning

ICML 2021oral

Transfer learning eases the burden of training a well-performed model from scratch, especially when training data is scarce and computation power is limited. In deep learning, a typical strategy for transfer learning is to freeze the early layers of a pre-trained model and fine-tune the rest of its…

2018

Zero-Shot Visual Imitation

ICLR 2018oral

The current dominant paradigm for imitation learning relies on strong supervision of expert actions to learn both 'what' and 'how' to imitate. We pursue an alternative paradigm wherein an agent first explores the world without any expert supervision and then distills its experience into a goal-condi…

2017

Combining self-supervised learning and imitation for vision-based rope manipulation

ICRA 2017poster

Manipulation of deformable objects, such as ropes and cloth, is an important but challenging problem in robotics. We present a learning-based system where a robot takes as input a sequence of images of a human manipulating a rope from an initial to goal configuration, and outputs a sequence of actio…

Cited by 367SourceScholar