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Junlin Xie

10 accepted papers

2026

InSpire: Vision-Language-Action Models with Intrinsic Spatial Reasoning

ICRA 2026poster

Leveraging pretrained Vision-Language Models (VLMs) to map language instruction and visual observations to raw low-level actions, Vision-Language-Action models (VLAs) hold great promise for achieving general-purpose robotic systems. Despite their advancements, existing VLAs tend to spuriously correl…

2026

Policy Contrastive Decoding for Robotic Foundation Models

ICLR 2026poster

Generalist robot policies, or robotic foundation models, hold immense potential to enable flexible, general-purpose and dexterous robotic systems. Despite their advancements, our empirical experiments reveal that existing robot policies are prone to learning spurious correlations from pre-training t…

Cited by 0SourcecodeScholar
2026

StreamRAG: Enhancing Real-Time Video Understanding with Retrieval Augmentation

CVPR 2026

The transition of Retrieval-Augmented Generation (RAG) from offline video analysis to online, streaming scenarios presents a set of critical, unexplored challenges. These include the need for on-the-fly semantic segmentation of continuous video, the inherent tension between low-latency processing an

Cited by 0SourceScholar
2025

AdaDrive: Self-Adaptive Slow-Fast System for Language-Grounded Autonomous Driving

ICCV 2025poster

Effectively integrating Large Language Models (LLMs) into autonomous driving requires a balance between leveraging high-level reasoning and maintaining real-time efficiency. Existing approaches either activate LLMs too frequently, causing excessive computational overhead, or use fixed schedules, fai…

2025

Free-MoRef: Instantly Multiplexing Context Perception Capabilities of Video-MLLMs within Single Inference

ICCV 2025poster

Video Multimodal Large Language Models (Video-MLLM) have achieved remarkable advancements in video understanding tasks. However, constrained by the context length limitation in the underlying LLMs, existing Video-MLLMs typically exhibit suboptimal performance on long video scenarios. To understand e…

2025

Lumina-T2X: Scalable Flow-based Large Diffusion Transformer for Flexible Resolution Generation

ICLR 2025spotlight

Sora unveils the potential of scaling Diffusion Transformer (DiT) for generating photorealistic images and videos at arbitrary resolutions, aspect ratios, and durations, yet it still lacks sufficient implementation details. In this paper, we introduce the Lumina-T2X family -- a series of Flow-based…

2025

PixWizard: Versatile Image-to-Image Visual Assistant with Open-Language Instructions

ICLR 2025poster

This paper presents a versatile image-to-image visual assistant, PixWizard, designed for image generation, manipulation, and translation based on free-from language instructions. To this end, we tackle a variety of vision tasks into a unified image-text-to-image generation framework and curate an Om…

2025

Shortcut Learning in Generalist Robot Policies: The Role of Dataset Diversity and Fragmentation

CoRL 2025poster

Generalist robot policies trained on large-scale datasets such as Open X-Embodiment (OXE) demonstrate strong performance across a wide range of tasks. However, they often struggle to generalize beyond the distribution of their training data. In this paper, we investigate the underlying cause of this…

Cited by 0SourceScholar
2024

WhodunitBench: Evaluating Large Multimodal Agents via Murder Mystery Games

NeurIPS 2024spotlight

Recently, large language models (LLMs) have achieved superior performance, empowering the development of large multimodal agents (LMAs). An LMA is anticipated to execute practical tasks requires various capabilities including multimodal perception, interaction, reasoning, and decision making. Howeve…

Cited by 1SourcePDFScholar
2022

Compositional Temporal Grounding With Structured Variational Cross-Graph Correspondence Learning

CVPR 2022poster

Temporal grounding in videos aims to localize one target video segment that semantically corresponds to a given query sentence. Thanks to the semantic diversity of natural language descriptions, temporal grounding allows activity grounding beyond pre-defined classes and has received increasing atten…

Cited by 80PDFcodeScholar