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Video Denoising is one of the fundamental tasks of any videoprocessing pipeline. It is different from image denoising due to the tem-poral aspects of video frames, and any image denoising approach appliedto videos will result in flickering.…

图像与视频处理 · 电气工程与系统科学 2020-08-28 Aryansh Omray , Samyak Jain , Utsav Krishnan , Pratik Chattopadhyay

This paper presents a novel approach for denoising binary images using simulated annealing (SA), a global optimization technique that addresses the inherent challenges of non convex energy functions. Binary images are often corrupted by…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Milind Cherukuri

The proliferation of imaging devices and countless image data generated every day impose an increasingly high demand on efficient and effective image denoising. In this paper, we establish a theoretical connection between principal…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Zhaoming Kong , Xiaowei Yang , Jiahuan Zhang

This paper proposes a novel method to filter out the false alarm of LiDAR system by using the temporal correlation of target reflected photons. Because of the inevitable noise, which is due to background light and dark counts of the…

仪器与探测器 · 物理学 2017-08-22 Zhenchao Feng , Weiji He , Jian Fang , Guohua Gu , Qian Chen , Ping Zhang , Yuanjin Chen , Beibei Zhou , Minhua Zhou

In spite of the improvements achieved by the several denoising algorithms over the years, many of them still fail at preserving the fine details of the image after denoising. This is as a result of the smooth-out effect they have on the…

图像与视频处理 · 电气工程与系统科学 2021-07-15 Basit O. Alawode , Mudassir Masood , Tarig Ballal , Tareq Al-Naffouri

A novel method for noise reduction in the setting of curve time series with error contamination is proposed, based on extending the framework of functional principal component analysis (FPCA). We employ the underlying, finite-dimensional…

统计方法学 · 统计学 2023-07-06 Cees Diks , Bram Wouters

Image dehazing is a crucial image pre-processing task aimed at removing the incoherent noise generated by haze to improve the visual appeal of the image. The existing models use sophisticated networks and custom loss functions which are…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Pavan A , Adithya Bennur , Mohit Gaggar , Shylaja S S

Low-dose CT images are essential for reducing radiation exposure in cancer screening, pediatric imaging, and longitudinal monitoring protocols, but their quality is often degraded by noise from low-dose acquisition, patient motion, or…

计算机视觉与模式识别 · 计算机科学 2026-03-12 Jitindra Fartiyal , Pedro Freire , Sergei K. Turitsyn , Sergei G. Solovski

In this paper, an image denoising algorithm is proposed for salt and pepper noise. First, a generative model is built on a patch as a basic unit and then the algorithm locates the image noise within that patch in order to better describe…

计算机视觉与模式识别 · 计算机科学 2018-07-17 Bo Fu , Xiao-Yang Zhao , Yong-Gong Ren , Xi-Ming Li , Xiang-Hai Wang

Background noise in many fields such as medical imaging poses significant challenges for accurate diagnosis, prompting the development of denoising algorithms. Traditional methodologies, however, often struggle to address the complexities…

图像与视频处理 · 电气工程与系统科学 2025-02-03 Amirreza Hashemi , Sayantan Dutta , Bertrand Georgeot , Denis Kouame , Hamid Sabet

In this paper, we present DEMC, a deep Dual-Encoder network to remove Monte Carlo noise efficiently while preserving details. Denoising Monte Carlo rendering is different from natural image denoising since inexpensive by-products (feature…

多媒体 · 计算机科学 2021-03-29 Xin Yang , Wenbo Hu , Dawei Wang , Lijing Zhao , Baocai Yin , Qiang Zhang , Xiaopeng Wei , Hongbo Fu

Remote sensing images are widely utilized in many disciplines such as feature recognition and scene semantic segmentation. However, due to environmental factors and the issues of the imaging system, the image quality is often degraded which…

图像与视频处理 · 电气工程与系统科学 2025-04-16 Kelum Gajamannage , Dilhani I. Jayathilake , Maria Vasilyeva

Recently, impressive denoising results have been achieved by Bayesian approaches which assume Gaussian models for the image patches. This improvement in performance can be attributed to the use of per-patch models. Unfortunately such an…

计算机视觉与模式识别 · 计算机科学 2017-12-08 Cecilia Aguerrebere , Andrés Almansa , Julie Delon , Yann Gousseau , Pablo Musé

Non-local patch based methods were until recently state-of-the-art for image denoising but are now outperformed by CNNs. Yet they are still the state-of-the-art for video denoising, as video redundancy is a key factor to attain high…

计算机视觉与模式识别 · 计算机科学 2019-07-03 Axel Davy , Thibaud Ehret , Jean-Michel Morel , Pablo Arias , Gabriele Facciolo

As quotidian use of sophisticated cameras surges, people in modern society are more interested in capturing fine-quality images. However, the quality of the images might be inferior to people's expectations due to the noise contamination in…

图像与视频处理 · 电气工程与系统科学 2022-03-08 Yonggi Park , Kelum Gajamannage , Alexey Sadovski

This paper describes a simple image noise removal method which combines a preprocessing step with the Yaroslavsky filter for strong numerical, visual, and theoretical performance on a broad class of images. The framework developed is a…

计算机视觉与模式识别 · 计算机科学 2015-03-20 Joseph Salmon , Rebecca Willett , Ery Arias-Castro

This paper deals with impulse noise removal from color images. The proposed noise removal algorithm employs a novel approach with morphological filtering for color image denoising; that is, detection of corrupted pixels and removal of the…

计算机视觉与模式识别 · 计算机科学 2017-07-12 Alexey Ruchay , Vitaly Kober

Natural images are often affected by random noise and image denoising has long been a central topic in Computer Vision. Many algorithms have been introduced to remove the noise from the natural images, such as Gaussian, Wiener filtering and…

计算机视觉与模式识别 · 计算机科学 2013-08-07 Hyuntaek Oh

To denoise a reference patch, the Non-Local-Means denoising filter processes a set of neighbor patches. Few Nearest Neighbors (NN) are used to limit the computational burden of the algorithm. Here here we show analytically that the NN…

计算机视觉与模式识别 · 计算机科学 2017-11-22 Iuri Frosio , Jan Kautz

Microsatellites and drones are often equipped with digital cameras whose sensing system is based on color filter arrays (CFAs), which define a pattern of color filter overlaid over the focal plane. Recent commercial cameras have started…

图像与视频处理 · 电气工程与系统科学 2023-06-05 Matthieu Muller , Daniele Picone , Mauro Dalla Mura , Magnus O Ulfarsson