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Digital subtraction angiography (DSA) plays a central role in the diagnosis and treatment of cerebrovascular disease, yet its invasive nature and high acquisition cost severely limit large-scale data collection and public data sharing.…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Qiwen Xu , David Rügamer , Holger Wenz , Johann Fontana , Nora Meggyeshazi , Andreas Bender , Máté E. Maros

LiDAR-based semantic segmentation is a key component for autonomous mobile robots, yet large-scale annotation of LiDAR point clouds is prohibitively expensive and time-consuming. Although simulators can provide labeled synthetic data,…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Tomoya Miyawaki , Kazuto Nakashima , Yumi Iwashita , Ryo Kurazume

Conditional generative models of high-dimensional images have many applications, but supervision signals from conditions to images can be expensive to acquire. This paper describes Diffusion-Decoding models with Contrastive representations…

机器学习 · 计算机科学 2021-06-15 Abhishek Sinha , Jiaming Song , Chenlin Meng , Stefano Ermon

Diffusion-based semantic communication methods have shown significant advantages in image transmission by harnessing the generative power of diffusion models. However, they still face challenges, including generation randomness that leads…

图像与视频处理 · 电气工程与系统科学 2024-11-12 Weixuan Chen , Qianqian Yang

Non-contrast CT (NCCT) imaging may reduce image contrast and anatomical visibility, potentially increasing diagnostic uncertainty. In contrast, contrast-enhanced CT (CECT) facilitates the observation of regions of interest (ROI). Leading…

图像与视频处理 · 电气工程与系统科学 2024-11-18 Tingyi Lin , Pengju Lyu , Jie Zhang , Yuqing Wang , Cheng Wang , Jianjun Zhu

Recent advances in latent diffusion models have demonstrated state-of-the-art performance in high-dimensional time-series data synthesis while providing flexible control through conditioning and guidance. However, existing methodologies…

机器学习 · 计算机科学 2025-11-11 Matteo Pettenó , Alessandro Ilic Mezza , Alberto Bernardini

We introduce Diffusion-based Audio Captioning (DAC), a non-autoregressive diffusion model tailored for diverse and efficient audio captioning. Although existing captioning models relying on language backbones have achieved remarkable…

计算与语言 · 计算机科学 2025-06-03 Manjie Xu , Chenxing Li , Xinyi Tu , Yong Ren , Ruibo Fu , Wei Liang , Dong Yu

Distributed learning on the edge often comprises self-centered devices (SCD) which learn local tasks independently and are unwilling to contribute to the performance of other SDCs. How do we achieve forward transfer at zero cost for the…

机器学习 · 计算机科学 2023-03-29 Antonio Carta , Andrea Cossu , Vincenzo Lomonaco , Davide Bacciu , Joost van de Weijer

Vocal-to-accompaniment (V2A) generation, which aims to transform a raw vocal recording into a fully arranged accompaniment, inherently requires jointly addressing an accompaniment trilemma: preserving acoustic authenticity, maintaining…

声音 · 计算机科学 2026-04-14 Qi Wang , Zhexu Shen , Meng Chen , Guoxin Yu , Chaoxu Pang , Weifeng Zhao , Wenjiang Zhou

Automatic drum transcription (ADT) is traditionally formulated as a discriminative task to predict drum events from audio spectrograms. In this work, we redefine ADT as a conditional generative task and introduce Noise-to-Notes (N2N), a…

声音 · 计算机科学 2026-03-06 Michael Yeung , Keisuke Toyama , Toya Teramoto , Shusuke Takahashi , Tamaki Kojima

This study introduces a text-conditioned approach to generating drumbeats with Latent Diffusion Models (LDMs). It uses informative conditioning text extracted from training data filenames. By pretraining a text and drumbeat encoder through…

声音 · 计算机科学 2024-08-07 Pushkar Jajoria , James McDermott

Semantic image synthesis (SIS) is a task to generate realistic images corresponding to semantic maps (labels). However, in real-world applications, SIS often encounters noisy user inputs. To address this, we propose Stochastic Conditional…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Juyeon Ko , Inho Kong , Dogyun Park , Hyunwoo J. Kim

Generating continuous sign language videos from discrete segments is challenging due to the need for smooth transitions that preserve natural flow and meaning. Traditional approaches that simply concatenate isolated signs often result in…

计算机视觉与模式识别 · 计算机科学 2024-11-27 Shengeng Tang , Jiayi He , Lechao Cheng , Jingjing Wu , Dan Guo , Richang Hong

While traditional and neural video codecs (NVCs) have achieved remarkable rate-distortion performance, improving perceptual quality at low bitrates remains challenging. Some NVCs incorporate perceptual or adversarial objectives but still…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Naifu Xue , Zhaoyang Jia , Jiahao Li , Bin Li , Zihan Zheng , Yuan Zhang , Yan Lu

Diffusion models excel at generation, but their latent spaces are high dimensional and not explicitly organized for interpretation or control. We introduce ConDA (Contrastive Diffusion Alignment), a plug-and-play geometry layer that applies…

Diffusion models have recently enabled state-of-the-art reconstruction of positron emission tomography (PET) images while requiring only image training data. However, domain shift remains a key concern for clinical adoption: priors trained…

医学物理 · 物理学 2025-10-16 George Webber , Alexander Hammers , Andrew P. King , Andrew J. Reader

Building upon Diff-A-Riff, a latent diffusion model for musical instrument accompaniment generation, we present a series of improvements targeting quality, diversity, inference speed, and text-driven control. First, we upgrade the…

声音 · 计算机科学 2024-10-31 Javier Nistal , Marco Pasini , Stefan Lattner

Diffusion Model (DM) based Semantic Image Communication (SIC) systems face significant challenges, such as slow inference speed and generation randomness, that limit their reliability and practicality. To overcome these issues, we propose a…

图像与视频处理 · 电气工程与系统科学 2025-07-24 Bilal Khalid , Pedro Freire , Sergei K. Turitsyn , Jaroslaw E. Prilepsky

Sign language transition generation seeks to convert discrete sign language segments into continuous sign videos by synthesizing smooth transitions. However,most existing methods merely concatenate isolated signs, resulting in poor visual…

计算机视觉与模式识别 · 计算机科学 2025-06-17 Jiashu He , Jiayi He , Shengeng Tang , Huixia Ben , Lechao Cheng , Richang Hong

Dance-to-music (D2M) generation aims to automatically compose music that is rhythmically and temporally aligned with dance movements. Existing methods typically rely on coarse rhythm embeddings, such as global motion features or binarized…

声音 · 计算机科学 2026-03-03 Jinting Wang , Chenxing Li , Li Liu
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