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Yiren Lu

12 accepted papers

2026

Expo-GS: Exposure-Aware Signed Distance Function in Gaussian Splatting for High Dynamic Range

ICML 2026poster

High dynamic range novel view synthesis (HDR-NVS) remains challenged by geometric artifacts and radiometric distortions under multi-exposure conditions, primarily due to existing methods ignoring exposure and over-relying on color cues. Inspired by the integrated processing of color and structure of…

Cited by 0SourceScholar
2026

MAGNIFIED: RL Fine-Tuning of Multimodal Large Language Models for Motion Planning

ICRA 2026poster

Multi-modal Large Language Models (MLLMs) have demonstrated remarkable capabilities in semantic understanding and common sense reasoning, making them promising candidates for solving planning problems in autonomous driving. However, the next-token text prediction objectives traditionally used in pre…

2025

BARD-GS: Blur-Aware Reconstruction of Dynamic Scenes via Gaussian Splatting

CVPR 2025poster

3D Gaussian Splatting (3DGS) has shown remarkable potential for static scene reconstruction, and recent advancements have extended its application to dynamic scenes. However, the quality of reconstructions depends heavily on high-quality input images and precise camera poses, which is not that trivi…

Cited by 2SourcePDFScholar
2025

S4-Driver: Scalable Self-Supervised Driving Multimodal Large Language Model with Spatio-Temporal Visual Representation

CVPR 2025poster

The latest advancements in multi-modal large language models (MLLMs) have spurred a strong renewed interest in end-to-end motion planning approaches for autonomous driving. Many end-to-end approaches rely on human annotations to learn intermediate perception and prediction tasks, while purely self-s…

Cited by 0SourcePDFScholar
2025

Segment then Splat: Unified 3D Open-Vocabulary Segmentation via Gaussian Splatting

NeurIPS 2025poster

Open-vocabulary querying in 3D space is crucial for enabling more intelligent perception in applications such as robotics, autonomous systems, and augmented reality. However, most existing methods rely on 2D pixel-level parsing, leading to multi-view inconsistencies and poor 3D object retrieval. Mor…

Cited by 0SourceScholar
2024

Cracking the Code of Juxtaposition: Can AI Models Understand the Humorous Contradictions

NeurIPS 2024oral

Recent advancements in large vision language models have demonstrated remarkable proficiency across a wide range of tasks. Yet, these models still struggle with understanding the nuances of human humor through juxtaposition, particularly when it involves nonlinear narratives that underpin many joke…

Cited by 4SourcePDFScholar
2023

Imitation Is Not Enough: Robustifying Imitation with Reinforcement Learning for Challenging Driving Scenarios

IROS 2023poster

Imitation learning (IL) is a simple and powerful way to use high-quality human driving data, which can be collected at scale, to produce human-like behavior. However, policies based on imitation learning alone often fail to sufficiently account for safety and reliability concerns. In this paper, we…

Cited by 106SourceScholar
2023

Waymax: An Accelerated, Data-Driven Simulator for Large-Scale Autonomous Driving Research

NeurIPS 2023poster

Simulation is an essential tool to develop and benchmark autonomous vehicle planning software in a safe and cost-effective manner. However, realistic simulation requires accurate modeling of multi-agent interactive behaviors to be trustworthy, behaviors which can be highly nuanced and complex. To ad…

Cited by 116SourcePDFScholar
2022

Hierarchical Model-Based Imitation Learning for Planning in Autonomous Driving

IROS 2022poster

We demonstrate the first large-scale application of model-based generative adversarial imitation learning (MGAIL) to the task of dense urban self-driving. We augment standard MGAIL using a hierarchical model to enable generalization to arbitrary goal routes, and measure performance using a closed-lo…

Cited by 60SourceScholar
2022

Multical: Spatiotemporal Calibration for Multiple IMUs, Cameras and LiDARs

IROS 2022poster

Spatiotemporal calibration of sensors, especially of those which do not share their fields of view, is becoming increasingly important in the fields of autonomous driving and robotics. This paper presents a general sensor calibration method, named Multical, that makes use of multiple planar calibrat…

Cited by 12SourceScholar