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Zehan Wang

41 accepted papers

2026

AlignSep: Temporally-Aligned Video-Queried Sound Separation with Flow Matching

ICLR 2026poster

Video Query Sound Separation (VQSS) aims to isolate target sounds conditioned on visual queries while suppressing off-screen interference—a task central to audiovisual understanding. However, existing methods often fail under conditions of homogeneous interference and overlapping soundtracks, due to…

Cited by 0SourcecodeScholar
2026

FineFocus: Benchmarking and Improving Fine-Grained Text-to-Image Alignment via Paired Reinforcement Learning

ICML 2026poster

While recent autoregressive models have achieved text-to-image generation performance comparable to diffusion models, they significantly struggle with fine-grained semantic alignment. To rigorously evaluate this limitation, we introduce DeltaBench, a benchmark featuring paired prompts with subtle fi…

Cited by 0SourceScholar
2026

SpatialHand: Generative Object Manipulation from 3D Prespective

ICLR 2026poster

We introduce SpatialHand, a novel framework for generative object insertion with precise 3D control. Current generative object manipulation methods primarily operate within the 2D image plane, but often fail to grasp 3D scene complexities, leading to ambiguities in an object's 3D position, orientati…

Cited by 0SourceScholar
2026

WiseEdit: Benchmarking Cognition- and Creativity-Informed Image Editing

CVPR 2026

Recent image editing models boast next-level intelligent capabilities, facilitating cognition- and creativity-informed image editing. Yet, existing benchmarks provide too narrow a scope for evaluation, failing to holistically assess these advanced abilities. To address this, we introduce WiseEdit, a

Cited by 0SourcecodeScholar
2026

WorldCompass: Reinforcement Learning for Long-Horizon World Models

ICML 2026poster

This work presents WorldCompass, a novel Reinforcement Learning (RL) post-training framework for the long-horizon, interactive video-based world models, enabling them to explore the world more accurately and consistently based on interaction signals. To effectively "steer" the world model's explorat…

Cited by 0SourceScholar
2026

WorldPlay: Towards Long-Term Geometric Consistency for Real-Time Interactive World Modeling

ICML 2026poster

This paper presents WorldPlay, a streaming video diffusion model that enables real-time, interactive world modeling with long-term geometric consistency, resolving the trade-off between speed and memory that limits current methods. WorldPlay draws power from three key innovations. 1) We use a Dual A…

Cited by 0SourceScholar
2025

AHa-Bench: Benchmarking Audio Hallucinations in Large Audio-Language Models

NeurIPS 2025poster

Hallucinations present a significant challenge in the development and evaluation of large language models (LLMs), directly affecting their reliability and accuracy. While notable advancements have been made in research on textual and visual hallucinations, there is still a lack of a comprehensive be…

Cited by 0SourceScholar
2025

ControlSpeech: Towards Simultaneous and Independent Zero-shot Speaker Cloning and Zero-shot Language Style Control

ACL 2025long

In this paper, we present ControlSpeech, a text-to-speech (TTS) system capable of fully cloning the speaker’s voice and enabling arbitrary control and adjustment of speaking style. Prior zero-shot TTS models only mimic the speaker’s voice without further control and adjustment capabilities while pri…

2025

Data-Efficiently Learn Large Language Model for Universal 3D Scene Perception

NAACL 2025findings

3D scene understanding has gained significant attention due to its wide range of applications. However, existing methods for 3D scene understanding are limited to specific downstream tasks, which hinders their practicality in real-world applications. This paper presents Chat-3D, which combines the 3…

Cited by 0SourcePDFScholar
2025

Diff-Prompt: Diffusion-Driven Prompt Generator with Mask Supervision

ICLR 2025poster

Prompt learning has demonstrated promising results in fine-tuning pre-trained multimodal models. However, the performance improvement is limited when applied to more complex and fine-grained tasks. The reason is that most existing methods directly optimize the parameters involved in the prompt gener…

2025

GenSpace: Benchmarking Spatially-Aware Image Generation

NeurIPS 2025poster

Humans can intuitively compose and arrange scenes in the 3D space for photography. However, can advanced AI image generators plan scenes with similar 3D spatial awareness when creating images from text or image prompts? We present GenSpace, a novel benchmark and evaluation pipeline to comprehensivel…

Cited by 0SourceScholar
2025

Improving Long-Text Alignment for Text-to-Image Diffusion Models

ICLR 2025poster

The rapid advancement of text-to-image (T2I) diffusion models has enabled them to generate unprecedented results from given texts. However, as text inputs become longer, existing encoding methods like CLIP face limitations, and aligning the generated images with long texts becomes challenging. To ta…

2025

MJPR: Multi-Modal Joint Predictive Representation in Deep Reinforcement Learning

ICRA 2025

Multi-modal reinforcement learning (RL) has been brought into focus due to its ability to provide complementary information from different sensors, enriching observations of agents. However, the introduction of multi-modal highdimensional observations brings challenges to sample efficiency. There is

Cited by 0SourceScholar
2025

OmniBind: Large-scale Omni Multimodal Representation via Binding Spaces

ICLR 2025poster

Recently, human-computer interaction with various modalities has shown promising applications, like GPT-4o and Gemini. Meanwhile, multimodal representation models have emerged as the foundation for these versatile multimodal understanding and generation pipeline. Models like CLIP, CLAP and ImageBind…

Cited by 11SourcePDFScholar
2025

OmniSep: Unified Omni-Modality Sound Separation with Query-Mixup

ICLR 2025poster

Query-based sound separation (QSS) effectively isolate sound signals that match the content of a given query, enhancing the understanding of audio data. However, most existing QSS methods rely on a single modality for separation, lacking the ability to fully leverage homologous but heterogeneous inf…

2025

Orient Anything V2: Unifying Orientation and Rotation Understanding

NeurIPS 2025spotlight

This work presents Orient Anything V2, an enhanced foundation model for unified understanding of object 3D orientation and rotation from single or paired images. Building upon Orient Anything V1, which defines orientation via a single unique front face, V2 extends this capability to handle objects w…

Cited by 0SourceScholar
2025

Orient Anything: Learning Robust Object Orientation Estimation from Rendering 3D Models

ICML 2025poster

Orientation is a fundamental attribute of objects, essential for understanding their spatial pose and arrangement. However, practical solutions for estimating the orientation of open-world objects in monocular images remain underexplored. In this work, we introduce Orient Anything, the first foundat…

2025

RoboGround: Robotic Manipulation with Grounded Vision-Language Priors

CVPR 2025poster

Recent advancements in robotic manipulation have highlighted the potential of intermediate representations for improving policy generalization. In this work, we explore grounding masks as an effective intermediate representation, balancing two key advantages: (1) effective spatial guidance that spec…

Cited by 0SourcePDFScholar
2025

SpatialCLIP: Learning 3D-aware Image Representations from Spatially Discriminative Language

CVPR 2025poster

Contrastive Language-Image Pre-training (CLIP) learns robust visual models through language supervision, making it a crucial visual encoding technique for various applications. However, CLIP struggles with comprehending spatial concepts in images, potentially restricting the spatial intelligence of…

2025

T2A-Feedback: Improving Basic Capabilities of Text-to-Audio Generation via Fine-grained AI Feedback

ACL 2025long

Text-to-audio (T2A) generation has achieved remarkable progress in generating a variety of audio outputs from language prompts. However, current state-of-the-art T2A models still struggle to satisfy human preferences for prompt-following and acoustic quality when generating complex multi-event audio…

Cited by 0SourcePDFScholar
2025

VoxDialogue: Can Spoken Dialogue Systems Understand Information Beyond Words?

ICLR 2025poster

With the rapid advancement of large models, voice assistants are gradually acquiring the ability to engage in open-ended daily conversations with humans. However, current spoken dialogue systems often overlook multi-modal information in audio beyond text, such as speech rate, volume, emphasis, and b…

2025

WavTokenizer: an Efficient Acoustic Discrete Codec Tokenizer for Audio Language Modeling

ICLR 2025poster

Language models have been effectively applied to modeling natural signals, such as images, video, speech, and audio. A crucial component of these models is the codec tokenizer, which compresses high-dimensional natural signals into lower-dimensional discrete tokens. In this paper, we introduce WavTo…

2024

Action Imitation in Common Action Space for Customized Action Image Synthesis

NeurIPS 2024poster

We propose a novel method, \textbf{TwinAct}, to tackle the challenge of decoupling actions and actors in order to customize the text-guided diffusion models (TGDMs) for few-shot action image generation. TwinAct addresses the limitations of existing methods that struggle to decouple actions from othe…

Cited by 10SourcePDFScholar
2024

Chat-Scene: Bridging 3D Scene and Large Language Models with Object Identifiers

NeurIPS 2024poster

Recent advancements in 3D Large Language Models (LLMs) have demonstrated promising capabilities for 3D scene understanding. However, previous methods exhibit deficiencies in general referencing and grounding capabilities for intricate scene comprehension. In this paper, we introduce the use of objec…

2024

Extending Multi-modal Contrastive Representations

NeurIPS 2024poster

Multi-modal contrastive representation (MCR) of more than three modalities is critical in multi-modal learning. Although recent methods showcase impressive achievements, the high dependence on large-scale, high-quality paired data and the expensive training costs limit their further development. Ins…

2024

FreeBind: Free Lunch in Unified Multimodal Space via Knowledge Fusion

ICML 2024poster

Unified multi-model representation spaces are the foundation of multimodal understanding and generation. However, the billions of model parameters and catastrophic forgetting problems make it challenging to further enhance pre-trained unified spaces. In this work, we propose FreeBind, an idea that t…

2024

Frieren: Efficient Video-to-Audio Generation Network with Rectified Flow Matching

NeurIPS 2024poster

Video-to-audio (V2A) generation aims to synthesize content-matching audio from silent video, and it remains challenging to build V2A models with high generation quality, efficiency, and visual-audio temporal synchrony. We propose Frieren, a V2A model based on rectified flow matching. Frieren regres…

2024

InstructSpeech: Following Speech Editing Instructions via Large Language Models

ICML 2024poster

Instruction-guided speech editing aims to follow the user's natural language instruction to manipulate the semantic and acoustic attributes of a speech. In this work, we construct triplet paired data (instruction, input speech, output speech) to alleviate data scarcity and train a multi-task large l…

2024

Lumina-Next : Making Lumina-T2X Stronger and Faster with Next-DiT

NeurIPS 2024poster

Lumina-T2X is a nascent family of Flow-based Large Diffusion Transformers (Flag-DiT) that establishes a unified framework for transforming noise into various modalities, such as images and videos, conditioned on text instructions. Despite its promising capabilities, Lumina-T2X still encounters chall…

2024

Make-A-Voice: Revisiting Voice Large Language Models as Scalable Multilingual and Multitask Learners

ACL 2024long

Large language models (LLMs) have successfully served as a general-purpose interface across multiple tasks and languages, while the adaptation of voice LLMs is mostly designed for specific purposes (either single-task or monolingual), where the advantages of LLMs especially for low-resource language…

2024

MimicTalk: Mimicking a personalized and expressive 3D talking face in minutes

NeurIPS 2024poster

Talking face generation (TFG) aims to animate a target identity's face to create realistic talking videos. Personalized TFG is a variant that emphasizes the perceptual identity similarity of the synthesized result (from the perspective of appearance and talking style). While previous works typically…

2024

TransFace: Unit-Based Audio-Visual Speech Synthesizer for Talking Head Translation

ACL 2024findings

Direct speech-to-speech translation achieves high-quality results through the introduction of discrete units obtained from self-supervised learning. However, talking head translation, converting audio-visual speech (i.e., talking head video) from one language into another, still confronts several ch…

2023

3DRP-Net: 3D Relative Position-aware Network for 3D Visual Grounding

EMNLP 2023long main

3D visual grounding aims to localize the target object in a 3D point cloud by a free-form language description. Typically, the sentences describing the target object tend to provide information about its relative relation between other objects and its position within the whole scene. In this work, w…

Cited by 0SourceScholar
2023

Connecting Multi-modal Contrastive Representations

NeurIPS 2023poster

Multi-modal Contrastive Representation (MCR) learning aims to encode different modalities into a semantically aligned shared space. This paradigm shows remarkable generalization ability on numerous downstream tasks across various modalities. However, the reliance on massive high-quality data pairs l…

2023

Distilling Coarse-to-Fine Semantic Matching Knowledge for Weakly Supervised 3D Visual Grounding

ICCV 2023poster

3D visual grounding involves finding a target object in a 3D scene that corresponds to a given sentence query. Although many approaches have been proposed and achieved impressive performance, they all require dense object-sentence pair annotations in 3D point clouds, which are both time-consuming an…

Cited by 19PDFcodeScholar
2023

MixSpeech: Cross-Modality Self-Learning with Audio-Visual Stream Mixup for Visual Speech Translation and Recognition

ICCV 2023poster

Multi-media communications facilitate global interaction among people. However, despite researchers exploring cross-lingual translation techniques such as machine translation and audio speech translation to overcome language barriers, there is still a shortage of cross-lingual studies on visual spee…

Cited by 25PDFcodeScholar
2023

Scene-robust Natural Language Video Localization via Learning Domain-invariant Representations

ACL 2023findings

Natural language video localization(NLVL) task involves the semantic matching of a text query with a moment from an untrimmed video. Previous methods primarily focus on improving performance with the assumption of independently identical data distribution while ignoring the out-of-distribution data.…

Cited by 6SourcePDFScholar
2017

Photo-Realistic Single Image Super-Resolution Using a Generative Adversarial Network

CVPR 2017oral

Despite the breakthroughs in accuracy and speed of single image super-resolution using faster and deeper convolutional neural networks, one central problem remains largely unsolved: how do we recover the finer texture details when we super-resolve at large upscaling factors? The behavior of optimiza…

Cited by 14895PDFcodeScholar
2017

Real-Time Video Super-Resolution With Spatio-Temporal Networks and Motion Compensation

CVPR 2017poster

Convolutional neural networks have enabled accurate image super-resolution in real-time. However, recent attempts to benefit from temporal correlations in video super-resolution have been limited to naive or inefficient architectures. In this paper, we introduce spatio-temporal sub-pixel convolution…

Cited by 888PDFScholar
2016

Real-Time Single Image and Video Super-Resolution Using an Efficient Sub-Pixel Convolutional Neural Network

CVPR 2016poster

Recently, several models based on deep neural networks have achieved great success in terms of both reconstruction accuracy and computational performance for single image super-resolution. In these methods, the low resolution (LR) input image is upscaled to the high resolution (HR) space using a sin…

Cited by 8215PDFScholar