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Event-based sensors offer significant advantages over traditional frame-based cameras, especially in scenarios involving rapid motion or challenging lighting conditions. However, event data frequently suffers from considerable noise,…

计算机视觉与模式识别 · 计算机科学 2025-06-05 Marcin Kowalczyk , Kamil Jeziorek , Tomasz Kryjak

Post-training quantization (PTQ) is a practical path to deploy large diffusion models, but quantization noise can accumulate over the denoising trajectory and degrade generation quality. We propose Q-Drift, a principled sampler-side…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Sooyoung Ryu , Mathieu Salzmann , Saqib Javed

Denoising Diffusion Probabilistic Models (DDPMs) are emerging in text-to-speech (TTS) synthesis because of their strong capability of generating high-fidelity samples. However, their iterative refinement process in high-dimensional data…

音频与语音处理 · 电气工程与系统科学 2023-01-02 Zehua Chen , Yihan Wu , Yichong Leng , Jiawei Chen , Haohe Liu , Xu Tan , Yang Cui , Ke Wang , Lei He , Sheng Zhao , Jiang Bian , Danilo Mandic

Diffusion models excel in generating high-quality images. However, current diffusion models struggle to produce reliable images without guidance methods, such as classifier-free guidance (CFG). Are guidance methods truly necessary?…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Donghoon Ahn , Jiwon Kang , Sanghyun Lee , Jaewon Min , Minjae Kim , Wooseok Jang , Hyoungwon Cho , Sayak Paul , SeonHwa Kim , Eunju Cha , Kyong Hwan Jin , Seungryong Kim

We introduce a new class of generative diffusion models that, unlike conventional denoising diffusion models, achieve a time-homogeneous structure for both the noising and denoising processes, allowing the number of steps to adaptively…

机器学习 · 统计学 2026-01-23 Sören Christensen , Jan Kallsen , Claudia Strauch , Lukas Trottner

This work aims to improve the applicability of diffusion models in realistic image restoration. Specifically, we enhance the diffusion model in several aspects such as network architecture, noise level, denoising steps, training image size,…

计算机视觉与模式识别 · 计算机科学 2023-04-18 Ziwei Luo , Fredrik K. Gustafsson , Zheng Zhao , Jens Sjölund , Thomas B. Schön

Diffusion models have shown great promise for image and video generation, but sampling from state-of-the-art models requires expensive numerical integration of a generative ODE. One approach for tackling this problem is rectified flows,…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Sangyun Lee , Zinan Lin , Giulia Fanti

We present Noisy Student Training, a semi-supervised learning approach that works well even when labeled data is abundant. Noisy Student Training achieves 88.4% top-1 accuracy on ImageNet, which is 2.0% better than the state-of-the-art…

机器学习 · 计算机科学 2020-06-22 Qizhe Xie , Minh-Thang Luong , Eduard Hovy , Quoc V. Le

Noise is a part of data whether the data is from measurement, experiment or ... A few techniques are suggested for noise reduction to improve the data quality in recent years some of which are based on wavelet, orthogonalization and neural…

计算工程、金融与科学 · 计算机科学 2023-08-02 Negin Bagherpour , Abbas Mohammadiyan

We propose an efficient neural network for RAW image denoising. Although neural network-based denoising has been extensively studied for image restoration, little attention has been given to efficient denoising for compute limited and power…

图像与视频处理 · 电气工程与系统科学 2021-03-19 Lucas D. Young , Fitsum A. Reda , Rakesh Ranjan , Jon Morton , Jun Hu , Yazhu Ling , Xiaoyu Xiang , David Liu , Vikas Chandra

Although the advances of self-supervised blind denoising are significantly superior to conventional approaches without clean supervision in synthetic noise scenarios, it shows poor quality in real-world images due to spatially correlated…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Kanggeun Lee , Kyungryun Lee , Won-Ki Jeong

The complicated architecture and high training cost of vision transformers urge the exploration of post-training quantization. However, the heavy-tailed distribution of vision transformer activations hinders the effectiveness of previous…

计算机视觉与模式识别 · 计算机科学 2023-04-20 Yijiang Liu , Huanrui Yang , Zhen Dong , Kurt Keutzer , Li Du , Shanghang Zhang

Recent advances in text-to-3D generation have made significant progress. In particular, with the pretrained diffusion models, existing methods predominantly use Score Distillation Sampling (SDS) to train 3D models such as Neural RaRecent…

计算机视觉与模式识别 · 计算机科学 2024-10-10 Hangyu Li , Xiangxiang Chu , Dingyuan Shi , Wang Lin

Text-conditioned image generation models have recently shown immense qualitative success using denoising diffusion processes. However, unlike discriminative vision-and-language models, it is a non-trivial task to subject these…

计算机视觉与模式识别 · 计算机科学 2023-11-06 Benno Krojer , Elinor Poole-Dayan , Vikram Voleti , Christopher Pal , Siva Reddy

The disparity between the computational demands of deep learning and the capabilities of compute hardware is expanding drastically. Although deep learning achieves remarkable performance in countless tasks, its escalating requirements for…

机器学习 · 计算机科学 2025-09-12 Xiao Wang , Hendrik Borras , Bernhard Klein , Holger Fröning

Diffusion inversion aims to recover the initial noise corresponding to a given image such that this noise can reconstruct the original image through the denoising diffusion process. The key component of diffusion inversion is to minimize…

计算机视觉与模式识别 · 计算机科学 2025-12-10 Yifei Chen , Kaiyu Song , Yan Pan , Jianxing Yu , Jian Yin , Hanjiang Lai

Denoising Score Matching estimates the score of a noised version of a target distribution by minimizing a regression loss and is widely used to train the popular class of Denoising Diffusion Models. A well known limitation of Denoising…

机器学习 · 计算机科学 2024-02-14 Valentin De Bortoli , Michael Hutchinson , Peter Wirnsberger , Arnaud Doucet

Recent studies on learning-based image denoising have achieved promising performance on various noise reduction tasks. Most of these deep denoisers are trained either under the supervision of clean references, or unsupervised on synthetic…

图像与视频处理 · 电气工程与系统科学 2021-03-30 Rui Zhao , Daniel P. K. Lun , Kin-Man Lam

Recent studies on learning with noisy labels have shown remarkable performance by exploiting a small clean dataset. In particular, model agnostic meta-learning-based label correction methods further improve performance by correcting noisy…

机器学习 · 计算机科学 2022-07-13 Seong Min Kye , Kwanghee Choi , Joonyoung Yi , Buru Chang

Generative processes that involve solving differential equations, such as diffusion models, frequently necessitate balancing speed and quality. ODE-based samplers are fast but plateau in performance while SDE-based samplers deliver higher…

机器学习 · 计算机科学 2023-11-02 Yilun Xu , Mingyang Deng , Xiang Cheng , Yonglong Tian , Ziming Liu , Tommi Jaakkola