arXiv Computer Vision

Binaural Audio-Visual Instance Segmentation

arXiv Computer Vision
6d ago

Semantic-Critical Regions for Video-to-Audio Generation

The paper introduces SCR-V2A, a video-to-audio generation framework that focuses on Semantic-Critical Regions (SCRs)—localized visual cues directly related to sound events. SCR-V2A first identifies these regions via sound-related visual localization, then encodes them with an adapter-based dual visual encoder to produce a control representation that captures both global context and fine-grained sound evidence. This representation conditions an audio generation model, and experiments on in-domain and out-of-domain benchmarks show improved distribution matching and audio quality with few trainable parameters.

By Yun Fang, Wei Guo, Zhuonan Liang, Heng Wang, Weidong Cai
arXiv Computer Vision
4d ago

Frequency-Domain Decomposition and Recomposition for Robust Audio-Visual Segmentation

The paper introduces Frequency-Aware Audio-Visual Segmentation (FAVS), a framework that treats audio-visual segmentation as a frequency-domain decomposition and recomposition task. It comprises a Frequency-Domain Enhanced Decomposer (FDED) that iteratively separates modality-specific semantics and structural features, and a Synergistic Cross-Modal Consistency (SCMC) module that uses a mixture-of-experts architecture to maintain semantic consistency and preserve modality-specific features. Experiments on three benchmark datasets show that FAVS achieves state-of-the-art performance, with qualitative visualizations supporting the effectiveness of both modules.

By Kai Peng, Yunzhe Shen, Miao Zhang, Jia Wang, Leiye Liu, Wei Ji, Jingjing Li, Yongri Piao, Huchuan Lu
arXiv Computer Vision
Sep 3

From Visual Cues to Spoken Narration: Rethinking Audio Description

The paper introduces Cue2Narrate, a two‑stage pipeline that jointly predicts what visual events to narrate and when to insert the narration in long, untrimmed movie clips. It uses a dual‑head audio‑visual localizer to identify visual cue and narration windows, followed by a LoRA‑adapted vision‑language model that generates concise audio descriptions, trained with a Description Ranking Loss. The authors also present the LongLSMDC benchmark, comprising up to 8‑minute clips, and show that Cue2Narrate outperforms video‑only and audio‑only baselines by 5–12 points in average mAP and improves AD generation over fine‑tuned base VLMs.

By Akshita Gupta, Aditya Arora, Federico Tombari, Marcus Rohrbach, Anna Rohrbach
arXiv Computer Vision
Oct 16

Hear, Localize, and Reason: Spatially Aware Scene Understanding for Audio-Visual LLMs

The paper introduces HLR-AVSceneQA, a benchmark that tests audio‑visual large language models on a hear‑localize‑reason hierarchy, assessing recognition of sounds, localization in egocentric and allocentric views, and reasoning about their relation to the visual scene. It also presents HLR‑LLM, a model that adds a binaural spatial audio branch to a strong audio‑visual foundation and is trained with a curriculum including chain‑of‑thought supervision for multi‑step spatial reasoning. Experiments show that existing AV‑LLMs are limited in spatial grounding and relational reasoning, while HLR‑LLM markedly improves spatial audio‑visual scene understanding without hurting semantic perception.

By Kim Sung-Bin, Lee Jung-Mok, Jinwoo Jung, Oh Hyun-Bin, Hyeonggon Ryu, David Harwath, Tae-Hyun Oh
arXiv AI
Oct 2

Supervising Sound Localization by In-the-wild Egomotion

The paper introduces a method for learning binaural sound localization by using egomotion as a supervisory signal. By tracking how a camera’s direction changes relative to a sound source during a video, the authors train an audio model to predict sound directions that align with visual estimates of camera motion derived from multi‑view geometry. They evaluate this approach on a newly proposed dataset of real‑world audio‑visual videos with egomotion, demonstrating that the model can learn from real data and perform well on sound localization tasks.

By Anna Min, Ziyang Chen, Hang Zhao, Andrew Owens
arXiv Machine Learning
Sep 10

BinauralVAE: Spatial Audio Reconstruction For World Models

BinauralVAE is an open‑source pipeline that reconstructs spatial audio using various Variational Autoencoder architectures, including complex‑valued variants, to learn latent representations of binaural signals. The project builds on realistic acoustic data from a simulated robot navigating an environment, providing a foundation for audio‑centric world models. It aims to map the causal link between navigational actions and their acoustic outcomes, positioning sound as a complementary modality for spatial awareness.

By Luis Vitor Zerkowski, Luiz Velho