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Peiwen Sun

10 accepted papers

2026

OneThinker: All-in-one Reasoning Model for Image and Video

CVPR 2026

Reinforcement learning (RL) has recently achieved remarkable success in eliciting visual reasoning within Multimodal Large Language Models (MLLMs). However, existing approaches typically train separate models for different tasks and treat image and video reasoning as disjoint domains. This results i

Cited by 0SourcecodeScholar
2026

PhoStream: Benchmarking Real-World Streaming for Omnimodal Assistants in Mobile Scenarios

ICML 2026poster

Multimodal Large Language Models excel at offline audio-visual understanding, but their ability to serve as mobile assistants in continuous real-world streams remains underexplored. In daily phone use, mobile assistants must track streaming audio-visual inputs and respond at the right time, yet exis…

Cited by 0SourceScholar
2026

PrismAudio: Decomposed Chain-of-Thought and Multi-dimensional Rewards for Video-to-Audio Generation

ICLR 2026poster

Video-to-Audio (V2A) generation requires balancing four critical perceptual dimensions: semantic consistency, audio-visual temporal synchrony, aesthetic quality, and spatial accuracy; yet existing methods suffer from objective entanglement that conflates competing goals in single loss functions and…

Cited by 0SourcecodeScholar
2026

SpaceVista: All-Scale Visual Spatial Reasoning from mm to km

ICML 2026poster

With the current surge in spatial reasoning, researchers have made significant progress in understanding indoor scenes, but still struggle with more diverse applications. This paper aims to advance all-scale spatial reasoning by tackling two key challenges: 1) the heavy reliance on indoor 3D scans a…

Cited by 0SourcecodeScholar
2025

Both Ears Wide Open: Towards Language-Driven Spatial Audio Generation

ICLR 2025spotlight

Recently, diffusion models have achieved great success in mono-channel audio generation. However, when it comes to stereo audio generation, the soundscapes often have a complex scene of multiple objects and directions. Controlling stereo audio with spatial contexts remains challenging due to high da…

Cited by 2SourcePDFScholar
2025

Codec Does Matter: Exploring the Semantic Shortcoming of Codec for Audio Language Model

AAAI 2025technical

Recent advancements in audio generation have been significantly propelled by the capabilities of Large Language Models (LLMs). The existing research on audio LLM has primarily focused on enhancing the architecture and scale of audio language models, as well as leveraging larger datasets, and general…

2025

OmniAudio: Generating Spatial Audio from 360-Degree Video

ICML 2025poster

Traditional video-to-audio generation techniques primarily focus on perspective video and non-spatial audio, often missing the spatial cues necessary for accurately representing sound sources in 3D environments. To address this limitation, we introduce a novel task, \textbf{360V2SA}, to generate spa…

2024

Can Textual Semantics Mitigate Sounding Object Segmentation Preference?

ECCV 2024poster

"The Audio-Visual Segmentation (AVS) task aims to segment sounding objects in the visual space using audio cues. However, in this work, it is recognized that previous AVS methods show a heavy reliance on detrimental segmentation preferences related to audible objects, rather than precise audio guida…

2024

Ref-AVS: Refer and Segment Objects in Audio-Visual Scenes

ECCV 2024poster

"Traditional reference segmentation tasks have predominantly focused on silent visual scenes, neglecting the integral role of multimodal perception and interaction in human experiences. In this work, we introduce a novel task called Reference Audio-Visual Segmentation (Ref-AVS), which seeks to segme…

2024

Stepping Stones: A Progressive Training Strategy for Audio-Visual Semantic Segmentation

ECCV 2024poster

"Audio-Visual Segmentation (AVS) aims to achieve pixel-level localization of sound sources in videos, while Audio-Visual Semantic Segmentation (AVSS), as an extension of AVS, further pursues semantic understanding of audio-visual scenes. However, since the AVSS task requires the establishment of aud…