activity
20192026
most citedSQ-VAE: Variational Bayes on Discrete Representation with Self-annealed Stochastic Quantization

13 citations · 41 across the 41 of their papers we have counts for

collaborators

49 papers

cs.CV2026

Disen-Forcing: Disentangling Semantic Anchoring from Motion for Autoregressive Video Diffusion

Zhengyang Yu, Akio Hayakawa, Masato Ishii +5

Autoregressive video diffusion models (AR-VDMs) enable real-time, long-horizon video generation but degrade rapidly once the inference horizon outruns the training horizon, due to…

cs.AI2026

AVIO: Learning to Add and Remove Sounding Objects in Audiovisual Scenes

Weihan Xu, Kan Jen Cheng, Koichi Saito +8

Adding or removing a sounding object requires coordinated changes to visual content and sound while preserving the surrounding scene. Yet paired supervision for localized non-speec…

cs.RO2026

LYRIC: Language-Driven Physics-Based Character Control for Contact-Rich Whole-Body Object Interaction

Zeyu Han, Zichong Meng, Julian Tanke +8

We present LYRIC, a generative flow-matching controller for language-driven physics-based contact-rich interaction control, that enables simulated characters to perform contact-ric…

cs.AI2026

Omni-Interactive Universal Embedder

Wei-Yao Wang, Kazuya Tateishi, Shuyang Cui +4

Multimodal representation learning has been shifting from traditional two-tower architectures to large language model (LLM)-based embedders due to their strong instruction-followin…

cs.CV2026

Spectral Prior for Reducing Exposure Bias in Diffusion Models

Yuya Kobayashi, Masato Ishii, Yuhta Takida +2

Diffusion models typically suffer from error accumulation during iterative sampling, commonly referred to as exposure bias. We reveal systematic frequency-dependent discrepancies b…

cs.CV2026

Odoriko: A Shape-Aware Multimodal Diffusion Framework for Human Motion

Dongseok Shim, Julian Tanke, Kengo Uchida +5

Human motion generation has been widely studied across diverse input modalities, text, music, and video, and recent efforts have unified these into single multimodal frameworks. Ho…

cs.SD2026

Spatio-Temporal Audio Language Modeling for Dynamic Sound Sources

Oh Hyun-Bin, Kazuki Shimada, Yuhta Takida +6

Sound events have semantic identities, locations, and trajectories, yet existing audio-language models typically encode clips as global event content. Conversely, sound event local…

cs.CV2026

Echoes Over Time: Unlocking Length Generalization in Video-to-Audio Generation Models

Christian Simon, Masato Ishii, Wei-Yao Wang +8

Scaling multimodal alignment between video and audio is challenging, particularly due to limited data and the mismatch between text descriptions and frame-level video information.…

cs.CV2025

AutoRefiner: Improving Autoregressive Video Diffusion Models via Reflective Refinement Over the Stochastic Sampling Path

Zhengyang Yu, Akio Hayakawa, Masato Ishii +4

Autoregressive video diffusion models (AR-VDMs) show strong promise as scalable alternatives to bidirectional VDMs, enabling real-time and interactive applications. Yet there remai…

cs.CV2025

Schrodinger Audio-Visual Editor: Object-Level Audiovisual Removal

Weihan Xu, Kan Jen Cheng, Koichi Saito +10

Joint editing of audio and visual content is crucial for precise and controllable content creation. This new task poses challenges due to the limitations of paired audio-visual dat…

cs.MM2025

Coherent Audio-Visual Editing via Conditional Audio Generation Following Video Edits

Masato Ishii, Akio Hayakawa, Takashi Shibuya +1

We introduce a novel pipeline for joint audio-visual editing that enhances the coherence between edited video and its accompanying audio. Our approach first applies state-of-the-ar…

eess.AS2025

Towards Blind Data Cleaning: A Case Study in Music Source Separation

Azalea Gui, Woosung Choi, Junghyun Koo +5

The performance of deep learning models for music source separation heavily depends on training data quality. However, datasets are often corrupted by difficult-to-detect artifacts…

cs.SD2025

StereoSync: Spatially-Aware Stereo Audio Generation from Video

Christian Marinoni, Riccardo Fosco Gramaccioni, Kazuki Shimada +3

Although audio generation has been widely studied over recent years, video-aligned audio generation still remains a relatively unexplored frontier. To address this gap, we introduc…

cs.LG2025

SONA: Learning Conditional, Unconditional, and Mismatching-Aware Discriminator

Yuhta Takida, Satoshi Hayakawa, Takashi Shibuya +6

Deep generative models have made significant advances in generating complex content, yet conditional generation remains a fundamental challenge. Existing conditional generative adv…

cs.SD2025

SoundReactor: Frame-level Online Video-to-Audio Generation

Koichi Saito, Julian Tanke, Christian Simon +7

Prevailing Video-to-Audio (V2A) generation models operate offline, assuming an entire video sequence or chunks of frames are available beforehand. This critically limits their use…

cs.CV2025

TITAN-Guide: Taming Inference-Time AligNment for Guided Text-to-Video Diffusion Models

Christian Simon, Masato Ishii, Akio Hayakawa +4

In the recent development of conditional diffusion models still require heavy supervised fine-tuning for performing control on a category of tasks. Training-free conditioning via g…

cs.SD2025★ 1 cited

Stereo Sound Event Localization and Detection with Onscreen/offscreen Classification

Kazuki Shimada, Archontis Politis, Iran R. Roman +10

This paper presents the objective, dataset, baseline, and metrics of Task 3 of the DCASE2025 Challenge on sound event localization and detection (SELD). In previous editions, the c…

cs.CV2025

Vid-CamEdit: Video Camera Trajectory Editing with Generative Rendering from Estimated Geometry

Junyoung Seo, Jisang Han, Jaewoo Jung +9

We introduce Vid-CamEdit, a novel framework for video camera trajectory editing, enabling the re-synthesis of monocular videos along user-defined camera paths. This task is challen…

cs.CV2025

Efficiency without Compromise: CLIP-aided Text-to-Image GANs with Increased Diversity

Yuya Kobayashi, Yuhta Takida, Takashi Shibuya +1

Recently, Generative Adversarial Networks (GANs) have been successfully scaled to billion-scale large text-to-image datasets. However, training such models entails a high training…

cs.CV2025

Step-by-Step Video-to-Audio Synthesis via Negative Audio Guidance

Akio Hayakawa, Masato Ishii, Takashi Shibuya +1

We propose a step-by-step video-to-audio (V2A) generation method that provides finer control over the generation process and more realistic audio synthesis. Inspired by traditional…

cs.CV2025

Dyadic Mamba: Long-term Dyadic Human Motion Synthesis

Julian Tanke, Takashi Shibuya, Kengo Uchida +2

Generating realistic dyadic human motion from text descriptions presents significant challenges, particularly for extended interactions that exceed typical training sequence length…

cs.CV2025

Forging and Removing Latent-Noise Diffusion Watermarks Using a Single Image

Anubhav Jain, Yuya Kobayashi, Naoki Murata +6

Watermarking techniques are vital for protecting intellectual property and preventing fraudulent use of media. Most previous watermarking schemes designed for diffusion models embe…

cs.CV2025

HumanGif: Single-View Human Diffusion with Generative Prior

Shoukang Hu, Takuya Narihira, Kazumi Fukuda +3

Previous 3D human creation methods have made significant progress in synthesizing view-consistent and temporally aligned results from sparse-view images or monocular videos. Howeve…

cs.SD2025★ 1 cited

CCStereo: Audio-Visual Contextual and Contrastive Learning for Binaural Audio Generation

Yuanhong Chen, Kazuki Shimada, Christian Simon +3

Binaural audio generation (BAG) aims to convert monaural audio to stereo audio using visual prompts, requiring a deep understanding of spatial and semantic information. However, cu…