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The optics of any camera degrades the sharpness of photographs, which is a key visual quality criterion. This degradation is characterized by the point-spread function (PSF), which depends on the wavelengths of light and is variable across…

图像与视频处理 · 电气工程与系统科学 2022-08-02 Thomas Eboli , Jean-Michel Morel , Gabriele Facciolo

We propose a hybrid method for stereo disparity estimation by combining block and region-based stereo matching approaches. It generates dense depth maps from disparity measurements of only 18 % image pixels (left or right). The methodology…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Subhayan Mukherjee , Ram Mohana Reddy Guddeti

The problem of deblurring an image when the blur kernel is unknown remains challenging after decades of work. Recently there has been rapid progress on correcting irregular blur patterns caused by camera shake, but there is still much room…

计算机视觉与模式识别 · 计算机科学 2013-02-08 Paul Shearer , Anna C. Gilbert , Alfred O. Hero

Non-blind deblurring methods achieve decent performance under the accurate blur kernel assumption. Since the kernel uncertainty (i.e. kernel error) is inevitable in practice, semi-blind deblurring is suggested to handle it by introducing…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Xiaole Tang , Xile Zhao , Jun Liu , Jianli Wang , Yuchun Miao , Tieyong Zeng

Marginalising over families of Gaussian Process kernels produces flexible model classes with well-calibrated uncertainty estimates. Existing approaches require likelihood evaluations of many kernels, rendering them prohibitively expensive…

机器学习 · 统计学 2023-03-16 Saad Hamid , Sebastian Schulze , Michael A. Osborne , Stephen J. Roberts

Successfully training end-to-end deep networks for real motion deblurring requires datasets of sharp/blurred image pairs that are realistic and diverse enough to achieve generalization to real blurred images. Obtaining such datasets remains…

计算机视觉与模式识别 · 计算机科学 2025-04-03 Guillermo Carbajal , Patricia Vitoria , José Lezama , Pablo Musé

Many deblurring and blur kernel estimation methods use a maximum a posteriori (MAP) approach or deep learning-based classification techniques to sharpen an image and/or predict the blur kernel. We propose a regression approach using…

图像与视频处理 · 电气工程与系统科学 2024-11-07 Luis G. Varela , Laura E. Boucheron , Steven Sandoval , David Voelz , Abu Bucker Siddik

We present a new method for blind motion deblurring that uses a neural network trained to compute estimates of sharp image patches from observations that are blurred by an unknown motion kernel. Instead of regressing directly to patch…

计算机视觉与模式识别 · 计算机科学 2016-08-02 Ayan Chakrabarti

In the classical bilateral filter, a fixed Gaussian range kernel is used along with a spatial kernel for edge-preserving smoothing. We consider a generalization of this filter, the so-called adaptive bilateral filter, where the center and…

计算机视觉与模式识别 · 计算机科学 2018-11-07 Ruturaj G. Gavaskar , Kunal N. Chaudhury

This paper introduces a novel unsupervised approach for image deblurring that utilizes a simple process for training data collection, thereby enhancing the applicability and effectiveness of deblurring methods. Our technique does not…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Bang-Dang Pham , Anh Tran , Cuong Pham , Minh Hoai

Over the past decades, a large number of techniques have emerged in modern imaging systems to capture the exact information of the original scene regardless of shake, motion, lighting conditions and etc., These developments have…

计算机视觉与模式识别 · 计算机科学 2018-08-28 Pushparaja Murugan

Dynamic scene deblurring is a challenging problem in computer vision. It is difficult to accurately estimate the spatially varying blur kernel by traditional methods. Data-driven-based methods usually employ kernel-free end-to-end mapping…

图像与视频处理 · 电气工程与系统科学 2020-08-20 Xiaoguang Li , Feifan Yang , Kin Man Lam , Li Zhuo , Jiafeng Li

One popular approach for blind deconvolution is to formulate a maximum a posteriori (MAP) problem with sparsity priors on the gradients of the latent image, and then alternatingly estimate the blur kernel and the latent image. While several…

计算机视觉与模式识别 · 计算机科学 2017-08-29 Sunghyun Cho , Seungyong Lee

This paper attempts to undertake the study of Restored Gaussian Blurred Images. by using four types of techniques of deblurring image as Wiener filter, Regularized filter, Lucy Richardson deconvlutin algorithm and Blind deconvlution…

计算机视觉与模式识别 · 计算机科学 2010-04-27 Salem Saleh Al-amri , N. V. Kalyankar , Khamitkar S. D

Two types of framework for blurred image classification based on adaptive dictionary are proposed. Given a blurred image, instead of image deblurring, the semantic category of the image is determined by blur insensitive sparse coefficients…

计算机视觉与模式识别 · 计算机科学 2013-07-30 Guangling Sun , Guoqing Li , Jie Yin

Sparse Multi-view Images can be Learned to predict explicit radiance fields via Generalizable Gaussian Splatting approaches, which can achieve wider application prospects in real-life when ground-truth camera parameters are not required as…

计算机视觉与模式识别 · 计算机科学 2024-11-28 Yanyan Li , Yixin Fang , Federico Tombari , Gim Hee Lee

We introduce GeMS, a framework for 3D Gaussian Splatting (3DGS) designed to handle severely motion-blurred images. State-of-the-art deblurring methods for extreme blur, such as ExBluRF, as well as Gaussian Splatting-based approaches like…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Gopi Raju Matta , Trisha Reddypalli , Vemunuri Divya Madhuri , Kaushik Mitra

The goal of blind image deblurring is to recover a sharp image from a motion blurred one without knowing the camera motion. Current state-of-the-art methods have a remarkably good performance on images with no noise or very low noise…

计算机视觉与模式识别 · 计算机科学 2019-05-17 Jérémy Anger , Mauricio Delbracio , Gabriele Facciolo

In the Full-Reference Image Quality Assessment context, Mean Opinion Score values represent subjective evaluations based on retinal perception, while objective metrics assess the reproduced image on the display. Bridging these subjective…

图像与视频处理 · 电气工程与系统科学 2025-03-04 Paolo Giannitrapani , Elio D. Di Claudio , Giovanni Jacovitti

We propose Bayesian methods for Gaussian graphical models that lead to sparse and adaptively shrunk estimators of the precision (inverse covariance) matrix. Our methods are based on lasso-type regularization priors leading to parsimonious…

统计方法学 · 统计学 2013-10-07 Rajesh Talluri , Veerabhadran Baladandayuthapani , Bani K. Mallick