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Super-resolution (SR) techniques designed for real-world applications commonly encounter two primary challenges: generalization performance and restoration accuracy. We demonstrate that when methods are trained using complex, large-range…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Ruofan Zhang , Jinjin Gu , Haoyu Chen , Chao Dong , Yulun Zhang , Wenming Yang

We establish a general, non-asymptotic error analysis framework for understanding the effects of incremental approximations made by practical approaches for Bayesian sequential learning (BSL) on their long-term inference performance. Our…

Statistics Theory · Mathematics 2025-07-29 Liliang Wang , Alex A. Gorodetsky

The performance of image super-resolution relies heavily on the accuracy of degradation information, especially under blind settings. Due to the absence of true degradation models in real-world scenarios, previous methods learn distinct…

Computer Vision and Pattern Recognition · Computer Science 2026-03-13 Hongda Liu , Longguang Wang , Ye Zhang , Kaiwen Xue , Shunbo Zhou , Yulan Guo

Barycenter problems encode important geometric information about a metric space. While these problems are typically studied with positive weight coefficients associated to each distance term, more general signed Wasserstein barycenter…

Optimization and Control · Mathematics 2026-02-06 Matt Jacobs , Bohan Zhou

Ongoing and planned weak lensing (WL) surveys are becoming deep enough to contain information on angular scales down to a few arcmin. To fully extract information from these small scales, we must capture non-Gaussian features in the…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Tianhuan Lu , Zoltán Haiman , José Manuel Zorrilla Matilla

This paper presents a cross-modal learning framework that exploits complementary information from depth and grayscale images for robust navigation. We introduce a Cross-Modal Wasserstein Autoencoder that learns shared latent representations…

Robotics · Computer Science 2026-03-24 Omkar Sawant , Luca Zanatta , Grzegorz Malczyk , Kostas Alexis

Recent advances in diffusion-based Large Restoration Models (LRMs) have significantly improved photo-realistic image restoration by leveraging the internal knowledge embedded within model weights. However, existing LRMs often suffer from…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Hang Guo , Tao Dai , Zhihao Ouyang , Taolin Zhang , Yaohua Zha , Bin Chen , Shu-tao Xia

Image restoration is a classic low-level problem aimed at recovering high-quality images from low-quality images with various degradations such as blur, noise, rain, haze, etc. However, due to the inherent complexity and non-uniqueness of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Yuhong Zhang , Hengsheng Zhang , Xinning Chai , Zhengxue Cheng , Rong Xie , Li Song , Wenjun Zhang

Learning suitable Whole slide images (WSIs) representations for efficient retrieval systems is a non-trivial task. The WSI embeddings obtained from current methods are in Euclidean space not ideal for efficient WSI retrieval. Furthermore,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Sobhan Hemati , Shivam Kalra , Morteza Babaie , H. R. Tizhoosh

In large-scale distributed scenarios, increasingly complex tasks demand more intelligent collaboration across networks, requiring the joint extraction of structural representations from data samples. However, conventional task-specific…

Machine Learning · Computer Science 2026-04-21 Zhuojun Tian , Chaouki Ben Issaid , Mehdi Bennis

Image reconstruction from corrupted images is crucial across many domains. Most reconstruction networks are trained on post-ISP sRGB images, even though the image-signal-processing pipeline irreversibly mixes colors, clips dynamic range,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Nate Rothschild , Moshe Kimhi , Avi Mendelson , Chaim Baskin

Unsupervised learning aims to capture the underlying structure of potentially large and high-dimensional datasets. Traditionally, this involves using dimensionality reduction (DR) methods to project data onto lower-dimensional spaces or…

Machine Learning · Computer Science 2025-06-30 Hugues Van Assel , Cédric Vincent-Cuaz , Nicolas Courty , Rémi Flamary , Pascal Frossard , Titouan Vayer

The computer vision community has developed numerous techniques for digitally restoring true scene information from single-view degraded photographs, an important yet extremely ill-posed task. In this work, we tackle image restoration from…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Yucheng Mao , Boyang Wang , Nilesh Kulkarni , Jeong Joon Park

Image restoration models often face the simultaneous interaction of multiple degradations in real-world scenarios. Existing approaches typically handle single or composite degradations based on scene descriptors derived from text or image…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jiawei Mao , Yu Yang , Xuesong Yin , Ling Shao , Hao Tang

In a variety of research areas, the weighted bag of vectors and the histogram are widely used descriptors for complex objects. Both can be expressed as discrete distributions. D2-clustering pursues the minimum total within-cluster variation…

Computation · Statistics 2017-01-10 Jianbo Ye , Panruo Wu , James Z. Wang , Jia Li

All-in-one image restoration aims to recover clear images from various degradation types and levels with a unified model. Nonetheless, the significant variations among degradation types present challenges for training a universal model,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Xiangpeng Tian , Xiangyu Liao , Xiao Liu , Meng Li , Chao Ren

In this paper we tackle the problem of comparing distributions of random variables and defining a mean pattern between a sample of random events. Using barycenters of measures in the Wasserstein space, we propose an iterative version as an…

Statistics Theory · Mathematics 2013-12-12 Emmanuel Boissard , Thibaut Le Gouic , Jean-Michel Loubes

Distributed systems require fusing heterogeneous local probability distributions into a global summary over sparse and unreliable communication networks. Traditional consensus algorithms, which average distributions in Euclidean space,…

Systems and Control · Electrical Eng. & Systems 2026-05-26 Ali Baheri , Alireza Vahid

This paper introduces the Raw Natural Image Noise Dataset (RawNIND), a diverse collection of paired raw images designed to support the development of denoising models that generalize across sensors, image development workflows, and styles.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Benoit Brummer , Christophe De Vleeschouwer

We propose a study of a distribution registration model for general deformation functions. In this framework, we provide estimators of the deformations as well as a goodness of fit test of the model. For this, we consider a criterion which…

Statistics Theory · Mathematics 2015-10-02 Eustasio Del Barrio , Hélène Lescornel , Jean-Michel Loubes