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Junfu Pu

6 accepted papers

2026

Verb Mirage: Unveiling and Assessing Verb Concept Hallucinations in Multimodal Large Language Models

AAAI 2026technical

Multimodal Large Language Models (MLLMs) have garnered significant attention recently and demonstrate outstanding capabilities in various tasks such as OCR, VQA, captioning, etc. However, hallucination remains a persistent issue. While numerous methods have been proposed to mitigate hallucinations,

Cited by 0SourcePDFScholar
2025

Taming Rectified Flow for Inversion and Editing

ICML 2025poster

Rectified-flow-based diffusion transformers like FLUX and OpenSora have demonstrated outstanding performance in the field of image and video generation. Despite their robust generative capabilities, these models often struggle with inversion inaccuracies, which could further limit their effectivenes…

2025

UniPixel: Unified Object Referring and Segmentation for Pixel-Level Visual Reasoning

NeurIPS 2025poster

Recent advances in Large Multi-modal Models (LMMs) have demonstrated their remarkable success as general-purpose multi-modal assistants, with particular focuses on holistic image- and video-language understanding. Conversely, less attention has been given to scaling fine-grained pixel-level understa…

Cited by 0SourceScholar
2024

How to Make Cross Encoder a Good Teacher for Efficient Image-Text Retrieval?

CVPR 2024poster

Dominant dual-encoder models enable efficient image-text retrieval but suffer from limited accuracy while the cross-encoder models offer higher accuracy at the expense of efficiency. Distilling cross-modality matching knowledge from cross-encoder to dual-encoder provides a natural approach to harnes…

Cited by 2SourcePDFScholar
2021

Improving Sign Language Translation With Monolingual Data by Sign Back-Translation

CVPR 2021poster

Despite existing pioneering works on sign language translation (SLT), there is a non-trivial obstacle, i.e., the limited quantity of parallel sign-text data. To tackle this parallel data bottleneck, we propose a sign back-translation (SignBT) approach, which incorporates massive spoken language text…

Cited by 249PDFScholar