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相关论文: A $BV$ Functional and its Relaxation for Joint Mot…

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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

The problem of restoring images corrupted by Poisson noise is common in many application fields and, because of its intrinsic ill posedness, it requires regularization techniques for its solution. The effectiveness of such techniques…

数值分析 · 数学 2021-04-30 Daniela di Serafino , Germana Landi , Marco Viola

Event-based moving object detection is a challenging task, where static background and moving object are mixed together. Typically, existing methods mainly align the background events to the same spatial coordinate system via motion…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Hanyu Zhou , Zhiwei Shi , Hao Dong , Shihan Peng , Yi Chang , Luxin Yan

This paper is concerned with a novel regularisation technique for solving linear ill-posed operator equations in Hilbert spaces from data that is corrupted by white noise. We combine convex penalty functionals with extreme-value statistics…

统计理论 · 数学 2012-04-03 Klaus Frick , Philipp Marnitz , Axel Munk

In this note we introduce and solve a soft classification version of the famous Bayesian sequential testing problem for a Brownian motion's drift. We establish that the value function is the unique non-trivial solution to a free boundary…

概率论 · 数学 2025-01-22 Steven Campbell , Yuchong Zhang

Current algorithmic approaches for piecewise affine motion estimation are based on alternating motion segmentation and estimation. We propose a new method to estimate piecewise affine motion fields directly without intermediate…

计算机视觉与模式识别 · 计算机科学 2018-02-07 Denis Fortun , Martin Storath , Dennis Rickert , Andreas Weinmann , Michael Unser

Optimized for pixel fidelity metrics, images compressed by existing image codec are facing systematic challenges when used for visual analysis tasks, especially under low-bitrate coding. This paper proposes a visual analysis-motivated…

图像与视频处理 · 电气工程与系统科学 2021-04-22 Zhimeng Huang , Chuanmin Jia , Shanshe Wang , Siwei Ma

Recent deep learning approaches focus on improving quantitative scores of dedicated benchmarks, and therefore only reduce the observation-related (aleatoric) uncertainty. However, the model-immanent (epistemic) uncertainty is less…

图像与视频处理 · 电气工程与系统科学 2021-10-25 Dominik Narnhofer , Alexander Effland , Erich Kobler , Kerstin Hammernik , Florian Knoll , Thomas Pock

Background modelling is a fundamental step for several real-time computer vision applications that requires security systems and monitoring. An accurate background model helps detecting activity of moving objects in the video. In this work,…

计算机视觉与模式识别 · 计算机科学 2018-10-22 Şahin Işık , Kemal Özkan , Ömer Nezih Gerek

Speed-of-sound has been shown as a potential biomarker for breast cancer imaging, successfully differentiating malignant tumors from benign ones. Speed-of-sound images can be reconstructed from time-of-flight measurements from ultrasound…

图像与视频处理 · 电气工程与系统科学 2020-07-23 Melanie Bernhardt , Valery Vishnevskiy , Richard Rau , Orcun Goksel

We tackle the problem of estimating a Manhattan frame, i.e. three orthogonal vanishing points, and the unknown focal length of the camera, leveraging a prior vertical direction. The direction can come from an Inertial Measurement Unit that…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Rémi Pautrat , Shaohui Liu , Petr Hruby , Marc Pollefeys , Daniel Barath

This paper focuses on the development of a space-variant regularization model for solving an under-determined linear inverse problem. The case study is a medical image reconstruction from few-view tomographic noisy data. The primary…

图像与视频处理 · 电气工程与系统科学 2024-04-29 Elena Morotti , Davide Evangelista , Andrea Sebastiani , Elena Loli Piccolomini

We propose a new joint image reconstruction method by recovering edge directly from observed data. More specifically, we reformulate joint image reconstruction with vectorial total-variation regularization as an $l_1$ minimization problem…

数值分析 · 数学 2017-12-11 Yunmei Chen , Ruogu Fang , Xiaojing Ye

This paper introduces a lightweight uncertainty estimator capable of predicting multimodal (disjoint) uncertainty bounds by integrating conformal prediction with a deep-learning regressor. We specifically discuss its application for visual…

机器学习 · 计算机科学 2023-09-21 Domenico Parente , Nastaran Darabi , Alex C. Stutts , Theja Tulabandhula , Amit Ranjan Trivedi

Many computer vision and image processing applications rely on local features. It is well-known that motion blur decreases the performance of traditional feature detectors and descriptors. We propose an inertial-based deblurring method for…

计算机视觉与模式识别 · 计算机科学 2018-05-23 Janne Mustaniemi , Juho Kannala , Simo Särkkä , Jiri Matas , Janne Heikkilä

We consider the problem of estimating a multivariate function $f_0$ of bounded variation (BV), from noisy observations $y_i = f_0(x_i) + z_i$ made at random design points $x_i \in \mathbb{R}^d$, $i=1,\ldots,n$. We study an estimator that…

机器学习 · 统计学 2023-01-02 Addison J. Hu , Alden Green , Ryan J. Tibshirani

Video super-resolution aims at generating a high-resolution video from its low-resolution counterpart. With the rapid rise of deep learning, many recently proposed video super-resolution methods use convolutional neural networks in…

计算机视觉与模式识别 · 计算机科学 2020-01-07 Xiaohong Liu , Lingshi Kong , Yang Zhou , Jiying Zhao , Jun Chen

Blind image denoising is an important yet very challenging problem in computer vision due to the complicated acquisition process of real images. In this work we propose a new variational inference method, which integrates both noise…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Zongsheng Yue , Hongwei Yong , Qian Zhao , Lei Zhang , Deyu Meng

Rotation invariance has been studied in the computer vision community primarily in the context of small in-plane rotations. This is usually achieved by building invariant image features. However, the problem of achieving invariance for…

计算机视觉与模式识别 · 计算机科学 2016-11-18 Lokesh Boominathan , Suraj Srinivas , R. Venkatesh Babu

Learning based video compression attracts increasing attention in the past few years. The previous hybrid coding approaches rely on pixel space operations to reduce spatial and temporal redundancy, which may suffer from inaccurate motion…

图像与视频处理 · 电气工程与系统科学 2021-08-24 Zhihao Hu , Guo Lu , Dong Xu