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Removal of noise from an image is an extensively studied problem in image processing. Indeed, the recent advent of sophisticated and highly effective denoising algorithms lead some to believe that existing methods are touching the ceiling…

计算机视觉与模式识别 · 计算机科学 2017-09-05 Yaniv Romano , Michael Elad , Peyman Milanfar

Recent deep learning-based image denoising methods have shown impressive performance; however, many lack the flexibility to adjust the denoising strength based on the noise levels, camera settings, and user preferences. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Youngjin Oh , Junhyeong Kwon , Keuntek Lee , Nam Ik Cho

We propose a new method for reconstruction of sparse signals with and without noisy perturbations, termed the subspace pursuit algorithm. The algorithm has two important characteristics: low computational complexity, comparable to that of…

数值分析 · 计算机科学 2009-01-08 Wei Dai , Olgica Milenkovic

A problem of image denoising when images are corrupted by a non-stationary noise is considered in this paper. Since in practice no a priori information on noise is available, noise statistics should be pre-estimated for image denoising. In…

图像与视频处理 · 电气工程与系统科学 2021-09-27 Sheyda Ghanbaralizadeh Bahnemiri , Mykola Ponomarenko , Karen Egiazarian

In ground based infrared imaging a well-known technique to reduce the influence of thermal and background noise is chopping and nodding, where four different signals of the same object are recorded from which the object is reconstructed…

天体物理学 · 物理学 2009-11-11 Frank Lenzen , Otmar Scherzer , Sabine Schindler

Single-molecule localization microscopy techniques, like stochastic optical reconstruction microscopy (STORM), visualize biological specimens by stochastically exciting sparse blinking emitters. The raw images suffer from unwanted…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Patris Valera , Josué Page Vizcaíno , Tobias Lasser

There have been many image denoisers using deep neural networks, which outperform conventional model-based methods by large margins. Recently, self-supervised methods have attracted attention because constructing a large real noise dataset…

图像与视频处理 · 电气工程与系统科学 2023-07-31 Yeong Il Jang , Keuntek Lee , Gu Yong Park , Seyun Kim , Nam Ik Cho

This paper proposes a deep learning architecture that attains statistically significant improvements over traditional algorithms in Poisson image denoising espically when the noise is strong. Poisson noise commonly occurs in low-light and…

计算机视觉与模式识别 · 计算机科学 2018-09-28 Po-Yu Liu , Edmund Y. Lam

Real-world imaging systems acquire measurements that are degraded by noise, optical aberrations, and other imperfections that make image processing for human viewing and higher-level perception tasks challenging. Conventional cameras…

计算机视觉与模式识别 · 计算机科学 2021-05-11 Steven Diamond , Vincent Sitzmann , Frank Julca-Aguilar , Stephen Boyd , Gordon Wetzstein , Felix Heide

Noise synthesis is a promising solution for addressing the data shortage problem in data-driven low-light RAW image denoising. However, accurate noise synthesis methods often necessitate labor-intensive calibration and profiling procedures…

图像与视频处理 · 电气工程与系统科学 2025-05-02 Feiran Li , Haiyang Jiang , Daisuke Iso

Many computer vision applications, such as object recognition and segmentation, increasingly build on superpixels. However, there have been so far few superpixel algorithms that systematically deal with noisy images. We propose to first…

计算机视觉与模式识别 · 计算机科学 2018-03-21 Ruobing Shen , Xiaoyu Chen , Xiangrui Zheng , Gerhard Reinelt

During the image acquisition process, noise is usually added to the data mainly due to physical limitations of the acquisition sensor, and also regarding imprecisions during the data transmission and manipulation. In that sense, the…

Existing denoising methods typically restore clear results by aggregating pixels from the noisy input. Instead of relying on hand-crafted aggregation schemes, we propose to explicitly learn this process with deep neural networks. We present…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Xiangyu Xu , Muchen Li , Wenxiu Sun , Ming-Hsuan Yang

Coherent imaging systems, such as medical ultrasound and synthetic aperture radar (SAR), are subject to corruption from speckle due to sub-resolution scatterers. Since speckle is multiplicative in nature, the constituent image regions…

图像与视频处理 · 电气工程与系统科学 2023-11-21 Soumee Guha , Scott T. Acton

Nowadays, many applications rely on images of high quality to ensure good performance in conducting their tasks. However, noise goes against this objective as it is an unavoidable issue in most applications. Therefore, it is essential to…

计算机视觉与模式识别 · 计算机科学 2017-04-20 Ahmed Ben Said , Rachid Hadjidj , Kamel Eddine Melkemi , Sebti Foufou

Fully supervised deep-learning based denoisers are currently the most performing image denoising solutions. However, they require clean reference images. When the target noise is complex, e.g. composed of an unknown mixture of primary…

图像与视频处理 · 电气工程与系统科学 2020-08-03 Florian Lemarchand , Erwan Nogues , Maxime Pelcat

Many low-light enhancement methods ignore intensive noise in original images. As a result, they often simultaneously enhance the noise as well. Furthermore, extra denoising procedures adopted by most methods ruin the details. In this paper,…

计算机视觉与模式识别 · 计算机科学 2018-05-01 Xutong Ren , Mading Li , Wen-Huang Cheng , Jiaying Liu

Modern digital cameras rely on the sequential execution of separate image processing steps to produce realistic images. The first two steps are usually related to denoising and demosaicking where the former aims to reduce noise from the…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Filippos Kokkinos , Stamatios Lefkimmiatis

Tunneling spectroscopy is an important tool for the study of both real-space and momentum-space electronic structure of correlated electron systems. However, such measurements often yield noisy data. Machine learning provides techniques to…

Poisson distribution is used for modeling noise in photon-limited imaging. While canonical examples include relatively exotic types of sensing like spectral imaging or astronomy, the problem is relevant to regular photography now more than…

计算机视觉与模式识别 · 计算机科学 2017-01-09 Tal Remez , Or Litany , Raja Giryes , Alex M. Bronstein