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Zunnan Xu

15 accepted papers

2026

Unsupervised Camouflaged Object Detection with Dual-Eigenvector Spectral Pseudo-Labeling and Contrastive Refinement

ICML 2026poster

Unsupervised Camouflaged Object Detection (UCOD) aims to identify objects concealed in their surroundings without relying on pixel-level labels. Existing methods rely solely on simple post-processing of DINO high-dimensional features to generate pseudo labels for training. However, these methods suf…

Cited by 0SourceScholar
2026

Zo3T: Zero-Shot 3D-Aware Trajectory-Guided Image-to-Video Generation via Test-Time Training

AAAI 2026technical

Trajectory-Guided image-to-video (I2V) generation aims to synthesize videos that adhere to user-specified motion instructions. Existing methods typically rely on computationally expensive fine-tuning on scarce annotated datasets. Although some zero-shot methods attempt to trajectory control in the l

Cited by 0SourcePDFScholar
2025

AToM: Aligning Text-to-Motion Model at Event-Level with GPT-4Vision Reward

CVPR 2025poster

Recently, text-to-motion models open new possibilities for creating realistic human motion with greater efficiency and flexibility. However, aligning motion generation with event-level textual descriptions presents unique challenges due to the complex, nuanced relationship between textual prompts an…

Cited by 1SourcePDFScholar
2025

Audio-visual Controlled Video Diffusion with Masked Selective State Spaces Modeling for Natural Talking Head Generation

ICCV 2025poster

Talking head synthesis is vital for virtual avatars and human-computer interaction. However, most existing methods are typically limited to accepting control from a single primary modality, restricting their practical utility. To this end, we introduce ACTalker, an end-to-end video diffusion framewo…

2025

Densely Connected Parameter-Efficient Tuning for Referring Image Segmentation

AAAI 2025technical

In the domain of computer vision, Parameter-Efficient Tuning (PET) is increasingly replacing the traditional paradigm of pre-training followed by full fine-tuning. PET is particularly favored for its effectiveness in large foundation models, as it streamlines transfer learning costs and optimizes ha…

2025

FireEdit: Fine-grained Instruction-based Image Editing via Region-aware Vision Language Model

CVPR 2025poster

Currently, instruction-based image editing methods have made significant progress by leveraging the powerful cross-modal understanding capabilities of visual language models (VLMs). However, they still face challenges in three key areas: 1) complex scenarios; 2) semantic consistency; and 3) fine-gra…

Cited by 2SourcePDFScholar
2025

HunyuanPortrait: Implicit Condition Control for Enhanced Portrait Animation

CVPR 2025poster

We introduce HunyuanPortrait, a diffusion-based condition control method that employs implicit representations for highly controllable and lifelike portrait animation. Given a single portrait image as an appearance reference and video clips as driving templates, HunyuanPortrait can animate the chara…

2025

REPARO: Compositional 3D Assets Generation with Differentiable 3D Layout Alignment

ICCV 2025poster

Traditional image-to-3D models often struggle with scenes containing multipleobjects due to biases and occlusion complexities. To address this challenge, wepresent REPARO, a novel approach for compositional 3D asset generation fromsingle images. REPARO employs a two-step process: first, it extracts…

2025

SAM-R1: Leveraging SAM for Reward Feedback in Multimodal Segmentation via Reinforcement Learning

NeurIPS 2025poster

Leveraging multimodal large models for image segmentation has become a prominent research direction. However, existing approaches typically rely heavily on manually annotated datasets that include explicit reasoning processes, which are costly and time-consuming to produce. Recent advances suggest t…

Cited by 0SourceScholar
2024

BATON: Aligning Text-to-Audio Model Using Human Preference Feedback

IJCAI 2024poster

With the development of AI-Generated Content (AIGC), text-to-audio models are gaining widespread attention. However, it is challenging for these models to generate audio aligned with human preference due to the inherent information density of natural language and limited model understanding ability.…

2024

Chain of Generation: Multi-Modal Gesture Synthesis via Cascaded Conditional Control

AAAI 2024technical

This study aims to improve the generation of 3D gestures by utilizing multimodal information from human speech. Previous studies have focused on incorporating additional modalities to enhance the quality of generated gestures. However, these methods perform poorly when certain modalities are missing…

Cited by 14SourcePDFScholar
2024

FreeTalker: Controllable Speech and Text-Driven Gesture Generation Based on Diffusion Models for Enhanced Speaker Naturalness

ICASSP 2024accepted

Current talking avatars mostly generate co-speech gestures based on audio and text of the utterance, without considering the non-speaking motion of the speaker. Furthermore, previous works on co-speech gesture generation have designed network structures based on individual gesture datasets, which re…

Cited by 0SourceScholar
2024

MaPPER: Multimodal Prior-guided Parameter Efficient Tuning for Referring Expression Comprehension

EMNLP 2024main

Referring Expression Comprehension (REC), which aims to ground a local visual region via natural language, is a task that heavily relies on multimodal alignment. Most existing methods utilize powerful pre-trained models to transfer visual/linguistic knowledge by full fine-tuning. However, full fine-…

2024

MambaTalk: Efficient Holistic Gesture Synthesis with Selective State Space Models

NeurIPS 2024poster

Gesture synthesis is a vital realm of human-computer interaction, with wide-ranging applications across various fields like film, robotics, and virtual reality. Recent advancements have utilized the diffusion model to improve gesture synthesis. However, the high computational complexity of these t…

2023

Bridging Vision and Language Encoders: Parameter-Efficient Tuning for Referring Image Segmentation

ICCV 2023poster

Parameter efficient tuning (PET) has received considerable attention owing to its applicability to reduce the number of parameters that need to be updated while maintaining competitive performance and providing better hardware resource savings. Although substantial progress has been made, most exist…

Cited by 73PDFcodeScholar