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Xinshuo Weng

27 accepted papers

2025

Gen-Drive: Enhancing Diffusion Generative Driving Policies with Reward Modeling and Reinforcement Learning Fine-Tuning

ICRA 2025

Autonomous driving necessitates the ability to reason about future interactions between traffic agents and to make informed evaluations for planning. This paper introduces the Gen-Drive framework, which shifts from the traditional prediction and deterministic planning framework to a generation-then-

Cited by 39SourcecodeScholar
2025

Language-Image Models with 3D Understanding

ICLR 2025poster

Multi-modal large language models (MLLMs) have shown incredible capabilities in a variety of 2D vision and language tasks. We extend MLLMs’ perceptual capabilities to ground and reason about images in 3-dimensional space. To that end, we first develop a large-scale pretraining dataset for 2D and 3D…

Cited by 15SourcePDFScholar
2024

Augmenting Lane Perception and Topology Understanding with Standard Definition Navigation Maps

ICRA 2024poster

Autonomous driving has traditionally relied heavily on costly and labor-intensive High Definition (HD) maps, hindering scalability. In contrast, Standard Definition (SD) maps are more affordable and have worldwide coverage, offering a scalable alternative. In this work, we systematically explore the…

Cited by 34SourcecodeScholar
2024

EmerNeRF: Emergent Spatial-Temporal Scene Decomposition via Self-Supervision

ICLR 2024poster

We present EmerNeRF, a simple yet powerful approach for learning spatial-temporal representations of dynamic driving scenes. Grounded in neural fields, EmerNeRF simultaneously captures scene geometry, appearance, motion, and semantics via self-bootstrapping. EmerNeRF hinges upon two core components:…

2024

NAVSIM: Data-Driven Non-Reactive Autonomous Vehicle Simulation and Benchmarking

NeurIPS 2024poster

Benchmarking vision-based driving policies is challenging. On one hand, open-loop evaluation with real data is easy, but these results do not reflect closed-loop performance. On the other, closed-loop evaluation is possible in simulation, but is hard to scale due to its significant computational dem…

2024

PARA-Drive: Parallelized Architecture for Real-time Autonomous Driving

CVPR 2024poster

Recent works have proposed end-to-end autonomous vehicle (AV) architectures comprised of differentiable modules achieving state-of-the-art driving performance. While they provide advantages over the traditional perception-prediction-planning pipeline (e.g. removing information bottlenecks between co…

Cited by 37SourcePDFScholar
2024

Tokenize the World into Object-level Knowledge to Address Long-tail Events in Autonomous Driving

CoRL 2024poster

The autonomous driving industry is increasingly adopting end-to-end learning from sensory inputs to minimize human biases in system design. Traditional end-to-end driving models, however, suffer from long-tail events due to rare or unseen inputs within their training distributions. To address this,…

Cited by 13SourceScholar
2023

Language Conditioned Traffic Generation

CoRL 2023poster

Simulation forms the backbone of modern self-driving development. Simulators help develop, test, and improve driving systems without putting humans, vehicles, or their environment at risk. However, simulators face a major challenge: They rely on realistic, scalable, yet interesting content. While re…

Cited by 63SourcecodeScholar
2023

Observation-Centric SORT: Rethinking SORT for Robust Multi-Object Tracking

CVPR 2023poster

Kalman filter (KF) based methods for multi-object tracking (MOT) make an assumption that objects move linearly. While this assumption is acceptable for very short periods of occlusion, linear estimates of motion for prolonged time can be highly inaccurate. Moreover, when there is no measurement avai…

2023

Task-Aware Risk Estimation of Perception Failures for Autonomous Vehicles

RSS 2023poster

Safety and performance are key enablers for autonomous driving: on the one hand we want our autonomous vehicles (AVs) to be safe, while at the same time their performance (e.g., comfort or progression) is key to adoption. To effectively walk the tightrope between safety and performance, AVs need to…

2023

Tree-structured Policy Planning with Learned Behavior Models

ICRA 2023poster

Autonomous vehicles (AVs) need to reason about the multimodal behavior of neighboring agents while planning their own motion. Many existing trajectory planners seek a single trajectory that performs well under all plausible futures simultaneously, ignoring bi-directional interactions and thus leadin…

Cited by 31SourceScholar
2022

Robust Trajectory Prediction against Adversarial Attacks

CoRL 2022oral

Trajectory prediction using deep neural networks (DNNs) is an essential component of autonomous driving (AD) systems. However, these methods are vulnerable to adversarial attacks, leading to serious consequences such as collisions. In this work, we identify two key ingredients to defend trajectory…

Cited by 47SourceScholar
2022

S2Net: Stochastic Sequential Pointcloud Forecasting

ECCV 2022poster

"Predicting futures of surrounding agents is critical for autonomous systems such as self-driving cars. Instead of requiring accurate detection and tracking prior to trajectory prediction, an object agnostic Sequential Pointcloud Forecasting (SPF) task was proposed in prior work, which enables a for…

Cited by 22SourcePDFScholar
2022

Whose Track Is It Anyway? Improving Robustness to Tracking Errors With Affinity-Based Trajectory Prediction

CVPR 2022poster

Multi-agent trajectory prediction is critical for planning and decision-making in human-interactive autonomous systems, such as self-driving cars. However, most prediction models are developed separately from their upstream perception (detection and tracking) modules, assuming ground truth past traj…

Cited by 27PDFScholar
2021

AgentFormer: Agent-Aware Transformers for Socio-Temporal Multi-Agent Forecasting

ICCV 2021poster

Predicting accurate future trajectories of multiple agents is essential for autonomous systems but is challenging due to the complex interaction between agents and the uncertainty in each agent's future behavior. Forecasting multi-agent trajectories requires modeling two key dimensions: (1) time dim…

Cited by 594PDFcodeScholar
2021

Joint Object Detection and Multi-Object Tracking with Graph Neural Networks

ICRA 2021poster

Object detection and data association are critical components in multi-object tracking (MOT) systems. Despite the fact that the two components are dependent on each other, prior works often design detection and data association modules separately which are trained with separate objectives. As a resu…

Cited by 382SourcecodeScholar
2021

Multi-Echo LiDAR for 3D Object Detection

ICCV 2021poster

LiDAR sensors can be used to obtain a wide range of measurement signals other than a simple 3D point cloud, and those signals can be leveraged to improve perception tasks like 3D object detection. A single laser pulse can be partially reflected by multiple objects along its path, resulting in multip…

Cited by 15PDFScholar
2020

3D Multi-Object Tracking: A Baseline and New Evaluation Metrics

IROS 2020poster

3D multi-object tracking (MOT) is an essential component for many applications such as autonomous driving and assistive robotics. Recent work on 3D MOT focuses on developing accurate systems giving less attention to practical considerations such as computational cost and system complexity. In contra…

Cited by 543SourcecodeScholar
2020

GNN3DMOT: Graph Neural Network for 3D Multi-Object Tracking With 2D-3D Multi-Feature Learning

CVPR 2020poster

3D Multi-object tracking (MOT) is crucial to autonomous systems. Recent work uses a standard tracking-by-detection pipeline, where feature extraction is first performed independently for each object in order to compute an affinity matrix. Then the affinity matrix is passed to the Hungarian algorithm…

Cited by 262PDFcodeScholar
2020

Inverting the Pose Forecasting Pipeline with SPF2: Sequential Pointcloud Forecasting for Sequential Pose Forecasting

CoRL 2020

Many autonomous systems forecast aspects of the future in order to aid decision-making. For example, self-driving vehicles and robotic manipulation systems often forecast future object poses by first detecting and tracking objects. However, this detect-then-forecast pipeline is expensive to scale, a

Cited by 0SourcePDFScholar
2019

Forecasting Time-to-Collision from Monocular Video: Feasibility, Dataset, and Challenges

IROS 2019poster

We explore the possibility of using a single monocular camera to forecast the time to collision between a suitcase-shaped robot being pushed by its user and other nearby pedestrians. We develop a purely image-based deep learning approach that directly estimates the time to collision without the need…

Cited by 46SourcecodeScholar
2018

Supervision-by-Registration: An Unsupervised Approach to Improve the Precision of Facial Landmark Detectors

CVPR 2018poster

In this paper, we present supervision-by-registration, an unsupervised approach to improve the precision of facial landmark detectors on both images and video. Our key observation is that the detections of the same landmark in adjacent frames should be coherent with registration, i.e., optical flow.…

Cited by 252SourcePDFScholar