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Diffusion probabilistic models (DPMs) have shown remarkable results on various image synthesis tasks such as text-to-image generation and image inpainting. However, compared to other generative methods like VAEs and GANs, DPMs lack a…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Yipeng Leng , Qiangjuan Huang , Zhiyuan Wang , Yangyang Liu , Haoyu Zhang

The increasing realism of synthetic images generated by advanced models such as VAEs, GANs, and LDMs poses significant challenges for synthetic image detection. To address this issue, we explore two artifact types introduced during the…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Shuqiao Liang , Jian Liu , Renzhang Chen , Quanlong Guan

Tokenizers are a key component of state-of-the-art generative image models, extracting the most important features from the signal while reducing data dimension and redundancy. Most current tokenizers are based on KL-regularized variational…

计算机视觉与模式识别 · 计算机科学 2025-10-07 Théophane Vallaeys , Jakob Verbeek , Matthieu Cord

In this paper, we propose an end-to-end mixed-resolution image compression framework with convolutional neural networks. Firstly, given one input image, feature description neural network (FDNN) is used to generate a new representation of…

计算机视觉与模式识别 · 计算机科学 2018-08-03 Lijun Zhao , Huihui Bai , Feng Li , Anhong Wang , Yao Zhao

Neural approximations of scalar and vector fields, such as signed distance functions and radiance fields, have emerged as accurate, high-quality representations. State-of-the-art results are obtained by conditioning a neural approximation…

计算机视觉与模式识别 · 计算机科学 2022-06-16 Towaki Takikawa , Alex Evans , Jonathan Tremblay , Thomas Müller , Morgan McGuire , Alec Jacobson , Sanja Fidler

Image Restoration (IR) methods based on a pre-trained diffusion model have demonstrated state-of-the-art performance. However, they have two fundamental limitations: 1) they often assume that the degradation operator is completely known and…

计算机视觉与模式识别 · 计算机科学 2024-11-06 Hamadi Chihaoui , Abdelhak Lemkhenter , Paolo Favaro

Recent work has shown the possibility of training generative models of 3D content from 2D image collections on small datasets corresponding to a single object class, such as human faces, animal faces, or cars. However, these models struggle…

计算机视觉与模式识别 · 计算机科学 2023-02-15 Kyle Sargent , Jing Yu Koh , Han Zhang , Huiwen Chang , Charles Herrmann , Pratul Srinivasan , Jiajun Wu , Deqing Sun

Recent advances in diffusion models have greatly improved image generation and editing, yet generating or reconstructing layered PSD files with transparent alpha channels remains highly challenging. We propose OmniPSD, a unified diffusion…

计算机视觉与模式识别 · 计算机科学 2025-12-11 Cheng Liu , Yiren Song , Haofan Wang , Mike Zheng Shou

Projecting the point cloud on the 2D spherical range image transforms the LiDAR semantic segmentation to a 2D segmentation task on the range image. However, the LiDAR range image is still naturally different from the regular 2D RGB image;…

计算机视觉与模式识别 · 计算机科学 2021-09-09 Yiming Zhao , Lin Bai , Xinming Huang

Diffusion models have emerged as powerful generative approaches for missing-data imputation, yet most existing methods operate directly in data space and degrade when training data are heavily incomplete. We investigate whether shifting…

机器学习 · 计算机科学 2026-05-28 Alberte Heering Estad , Ignacio Peis , Jes Frellsen

NIR-to-RGB spectral domain translation is a challenging task due to the mapping ambiguities, and existing methods show limited learning capacities. To address these challenges, we propose to colorize NIR images via a multi-scale progressive…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Xingxing Yang , Jie Chen , Zaifeng Yang

Blind image restoration remains a significant challenge in low-level vision tasks. Recently, denoising diffusion models have shown remarkable performance in image synthesis. Guided diffusion models, leveraging the potent generative priors…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Jun Xiao , Zihang Lyu , Hao Xie , Cong Zhang , Yakun Ju , Changjian Shui , Kin-Man Lam

Phase-field models have been widely used to investigate the phase transformation phenomena. However, it is difficult to solve the problems numerically due to their strong nonlinearities and higher-order terms. This work is devoted to…

数值分析 · 数学 2024-07-23 Gang Bao , Chang Ma , Yuxuan Gong

Classical nonlinear dimensionality reduction (NLDR) techniques like t-SNE, Isomap, and LLE excel at creating low-dimensional embeddings for data visualization but fundamentally lack the ability to map these embeddings back to the original…

机器学习 · 计算机科学 2025-10-16 Riddhish Thakare , Kingdom Mutala Akugri

In recent years we have witnessed an increasing interest in applying Deep Neural Networks (DNNs) to improve the rate-distortion performance in image compression. However, the existing approaches either train a post-processing DNN on the…

图像与视频处理 · 电气工程与系统科学 2020-10-27 Yannick Strümpler , Ren Yang , Radu Timofte

Image deblurring task is an ill-posed one, where exists infinite feasible solutions for blurry image. Modern deep learning approaches usually discard the learning of blur kernels and directly employ end-to-end supervised learning. Popular…

计算机视觉与模式识别 · 计算机科学 2022-08-30 Sidun Liu , Peng Qiao , Yong Dou

Recently deep learning-based methods have been applied in image compression and achieved many promising results. In this paper, we propose an improved hybrid layered image compression framework by combining deep learning and the traditional…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Haisheng Fu , Feng Liang , Bo Lei , Nai Bian , Qian zhang , Mohammad Akbari , Jie Liang , Chengjie Tu

In recent times, the need for effective super-resolution (SR) techniques has surged, especially for large-scale images ranging 2K to 8K resolutions. For DNN-based SISR, decomposing images into overlapping patches is typically necessary due…

计算机视觉与模式识别 · 计算机科学 2024-08-01 Jinho Jeong , Jinwoo Kim , Younghyun Jo , Seon Joo Kim

Equivariant Graph Neural Networks (GNNs) have achieved remarkable success across diverse scientific applications. However, existing approaches face critical efficiency challenges when scaling to large geometric graphs and suffer significant…

机器学习 · 计算机科学 2025-06-25 Yuelin Zhang , Jiacheng Cen , Jiaqi Han , Wenbing Huang

How to effectively explore multi-scale representations of rain streaks is important for image deraining. In contrast to existing Transformer-based methods that depend mostly on single-scale rain appearance, we develop an end-to-end…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Xiang Chen , Jinshan Pan , Jiangxin Dong