← Search

Zhenghao Peng

21 accepted papers

2026

Counterfactual VLA: Self-Reflective Vision-Language-Action Model with Adaptive Reasoning

CVPR 2026

Recent reasoning-augmented Vision-Language-Action (VLA) models have improved the interpretability of end-to-end autonomous driving by generating intermediate reasoning traces. Yet these models primarily describe what they perceive and intend to do, rarely questioning whether their planned actions ar

Cited by 0SourceScholar
2025

Bidirectional Motion Transformer for Safety-Critical Traffic Scenario Generation

NeurIPS 2025poster

Scenario-based testing is essential for validating the performance of autonomous driving (AD) systems. However, such testing is limited by the scarcity of long-tailed, safety-critical scenarios in existing datasets collected in the real world. To tackle the data issue, we propose the Adv-BMT framewo…

Cited by 0SourceScholar
2025

Embodied Scene Understanding for Vision Language Models via MetaVQA

CVPR 2025poster

Vision Language Models (VLMs) demonstrate significant potential as embodied AI agents for various mobility applications. However, a standardized, closed-loop benchmark for evaluating their spatial reasoning and sequential decision-making capabilities is lacking. To address this, we present MetaVQA:…

2025

Robot-Gated Interactive Imitation Learning with Adaptive Intervention Mechanism

ICML 2025poster

Interactive Imitation Learning (IIL) allows agents to acquire desired behaviors through human interventions, but current methods impose high cognitive demands on human supervisors. We propose the Adaptive Intervention Mechanism (AIM), a novel robot-gated IIL algorithm that learns an adaptive criteri…

2025

Vid2Sim: Realistic and Interactive Simulation from Video for Urban Navigation

CVPR 2025poster

Sim-to-real gap has long posed a significant challenge for robot learning in simulation, preventing the deployment of learned models in the real world. Previous work has primarily focused on domain randomization and system identification to mitigate this gap. However, these methods are often limited…

Cited by 4SourcePDFScholar
2024

Improving Agent Behaviors with RL Fine-tuning for Autonomous Driving

ECCV 2024poster

"A major challenge in autonomous vehicle research is modeling agent behaviors, which has critical applications including constructing realistic and reliable simulations for off-board evaluation and forecasting traffic agents motion for onboard planning. While supervised learning has shown success in…

2024

Shared Autonomy with IDA: Interventional Diffusion Assistance

NeurIPS 2024poster

The rapid development of artificial intelligence (AI) has unearthed the potential to assist humans in controlling advanced technologies. Shared autonomy (SA) facilitates control by combining inputs from a human pilot and an AI copilot. In prior SA studies, the copilot is constantly active in determi…

Cited by 1SourcePDFScholar
2024

SimGen: Simulator-conditioned Driving Scene Generation

NeurIPS 2024poster

Controllable synthetic data generation can substantially lower the annotation cost of training data. Prior works use diffusion models to generate driving images conditioned on the 3D object layout. However, those models are trained on small-scale datasets like nuScenes, which lack appearance and lay…

Cited by 9SourcePDFScholar
2023

CAT: Closed-loop Adversarial Training for Safe End-to-End Driving

CoRL 2023poster

Driving safety is a top priority for autonomous vehicles. Orthogonal to prior work handling accident-prone traffic events by algorithm designs at the policy level, we investigate a \textbf{C}losed-loop \textbf{A}dversarial \textbf{T}raining (CAT) framework for safe end-to-end driving in this paper t…

Cited by 33SourcecodeScholar
2023

Guarded Policy Optimization with Imperfect Online Demonstrations

ICLR 2023top-25%

The Teacher-Student Framework (TSF) is a reinforcement learning setting where a teacher agent guards the training of a student agent by intervening and providing online demonstrations. Assuming optimal, the teacher policy has the perfect timing and capability to intervene in the learning process of…

2023

Learning from Active Human Involvement through Proxy Value Propagation

NeurIPS 2023spotlight

Learning from active human involvement enables the human subject to actively intervene and demonstrate to the AI agent during training. The interaction and corrective feedback from human brings safety and AI alignment to the learning process. In this work, we propose a new reward-free active human i…

2023

ScenarioNet: Open-Source Platform for Large-Scale Traffic Scenario Simulation and Modeling

NeurIPS 2023poster

Large-scale driving datasets such as Waymo Open Dataset and nuScenes substantially accelerate autonomous driving research, especially for perception tasks such as 3D detection and trajectory forecasting. Since the driving logs in these datasets contain HD maps and detailed object annotations which a…

2023

TrafficGen: Learning to Generate Diverse and Realistic Traffic Scenarios

ICRA 2023poster

Diverse and realistic traffic scenarios are crucial for evaluating the AI safety of autonomous driving systems in simulation. This work introduces a data-driven method called TrafficGen for traffic scenario generation. It learns from the fragmented human driving data collected in the real world and…

Cited by 119SourcecodeScholar
2022

Efficient Learning of Safe Driving Policy via Human-AI Copilot Optimization

ICLR 2022poster

Human intervention is an effective way to inject human knowledge into the training loop of reinforcement learning, which can bring fast learning and ensured training safety. Given the very limited budget of human intervention, it remains challenging to design when and how human expert interacts with…

Cited by 65SourcePDFScholar
2022

Human-AI Shared Control via Policy Dissection

NeurIPS 2022accept

Human-AI shared control allows human to interact and collaborate with autonomous agents to accomplish control tasks in complex environments. Previous Reinforcement Learning (RL) methods attempted goal-conditioned designs to achieve human-controllable policies at the cost of redesigning the reward fu…

2022

Learning to Drive by Watching YouTube Videos: Action-Conditioned Contrastive Policy Pretraining

ECCV 2022poster

"Deep visuomotor policy learning, which aims to map raw visual observation to action, achieves promising results in control tasks such as robotic manipulation and autonomous driving. However, it requires a huge number of online interactions with the training environment, which limits its real-world…

2022

SwinTextSpotter: Scene Text Spotting via Better Synergy Between Text Detection and Text Recognition

CVPR 2022poster

End-to-end scene text spotting has attracted great attention in recent years due to the success of excavating the intrinsic synergy of the scene text detection and recognition. However, recent state-of-the-art methods usually incorporate detection and recognition simply by sharing the backbone, whic…

Cited by 151PDFcodeScholar
2021

Learning to Simulate Self-driven Particles System with Coordinated Policy Optimization

NeurIPS 2021poster

Self-Driven Particles (SDP) describe a category of multi-agent systems common in everyday life, such as flocking birds and traffic flows. In a SDP system, each agent pursues its own goal and constantly changes its cooperative or competitive behaviors with its nearby agents. Manually designing the co…