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Tianyang Han

5 accepted papers

2026

PositionIC: Unified Position and Identity Consistency for Image Customization

CVPR 2026

Recent subject-driven image customization excels in fidelity, yet fine-grained instance-level spatial control remains an elusive challenge, hindering real-world applications. This limitation stems from two factors: a scarcity of scalable, position-annotated datasets, and the entanglement of identity

Cited by 0SourcecodeScholar
2025

Personalized Visual Instruction Tuning

ICLR 2025poster

Recent advancements in multimodal large language models (MLLMs) have demonstrated significant progress; however, these models exhibit a notable limitation, which we refer to as "face blindness." Specifically, they can engage in general conversations but fail to conduct personalized dialogues targeti…

2024

MLLM-Protector: Ensuring MLLM’s Safety without Hurting Performance

EMNLP 2024main

The deployment of multimodal large language models (MLLMs) has brought forth a unique vulnerability: susceptibility to malicious attacks through visual inputs. This paper investigates the novel challenge of defending MLLMs against such attacks. Compared to large language models (LLMs), MLLMs include…

2024

Strengthening Multimodal Large Language Model with Bootstrapped Preference Optimization

ECCV 2024oral

"Multimodal Large Language Models (MLLMs) excel in generating responses based on visual inputs. However, they often suffer from a bias towards generating responses similar to their pretraining corpus, overshadowing the importance of visual information. We treat this bias as a “preference” for pretra…

2024

The Instinctive Bias: Spurious Images lead to Illusion in MLLMs

EMNLP 2024main

Large language models (LLMs) have recently experienced remarkable progress, where the advent of multi-modal large language models (MLLMs) has endowed LLMs with visual capabilities, leading to impressive performances in various multi-modal tasks. However, those powerful MLLMs such as GPT-4V still fai…