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This paper presents a parallel Salt and Pepper (SP) noise removal algorithm in a grey level digital image based on the Hypergraph Based Root Mean Square (HGRMS) approach. HGRMS is generic algorithm for identifying noisy pixels in any…

Distributed, Parallel, and Cluster Computing · Computer Science 2013-07-02 Tejaswi Agarwal , Saurabh Jha , B. Rajesh Kanna

When solving stochastic partial differential equations (SPDEs) driven by additive spatial white noise, the efficient sampling of white noise realizations can be challenging. Here, we present a new sampling technique that can be used to…

Numerical Analysis · Mathematics 2023-01-10 Matteo Croci , Michael B. Giles , Marie E. Rognes , Patrick E. Farrell

This paper attempts to undertake the study of three types of noise such as Salt and Pepper (SPN), Random variation Impulse Noise (RVIN), Speckle (SPKN). Different noise densities have been removed between 10% to 60% by using five types of…

Computer Vision and Pattern Recognition · Computer Science 2010-02-08 Salem Saleh Al-amri , N. V. Kalyankar , S. D. Khamitkar

In this paper, we firstly introduce a method to efficiently implement large-scale high-dimensional convolution with realistic memristor-based circuit components. An experiment verified simulator is adapted for accurate prediction of analog…

Neural and Evolutionary Computing · Computer Science 2018-10-05 Fan Zhang , Miao Hu

Memory circuit elements, namely memristive, memcapacitive and meminductive systems, are gaining considerable attention due to their ubiquity and use in diverse areas of science and technology. Their modeling within the most widely used…

Computational Physics · Physics 2016-06-24 D. Biolek , M. Di Ventra , Y. V. Pershin

When an image is formed, factors such as lighting (spectra, source, and intensity) and camera characteristics (sensor response, lenses) affect the appearance of the image. Therefore, the prime factor that reduces the quality of the image is…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Vivek Kumar , Atul Samadhiya

We consider the problem of image denoising in the presence of noise whose statistical properties are a combination of two different distributions. We focus on noise distributions that are frequently considered in applications, in particular…

Optimization and Control · Mathematics 2016-11-22 Luca Calatroni , Juan Carlos De Los Reyes , Carola-Bibiane Schönlieb

We analyse a variational regularisation problem for mixed noise removal that was recently proposed in [14]. The data discrepancy term of the model combines $L^1$ and $L^2$ terms in an infimal convolution fashion and it is appropriate for…

Optimization and Control · Mathematics 2020-01-08 Luca Calatroni , Kostas Papafitsoros

This paper introduces a novel filter, the Adaptive Weight Modified Riesz Mean Filter (AWMRmF), designed for the effective removal of high-density salt and pepper noise (SPN). AWMRmF integrates a pixel weight function and adaptivity…

Image and Video Processing · Electrical Eng. & Systems 2025-09-26 Md Jahidul Islam

The memristor is promising to be the basic cell of next-generation computation systems. Compared to the traditional MOSFET device, the memristor is efficient over energy and area. But one of the biggest challenges faced with researchers is…

Emerging Technologies · Computer Science 2016-11-22 Junyi Li , Fulin Peng , Fan Yang , Xuan Zeng

Universal sound separation faces a fundamental misalignment: models optimized for low-level signal metrics often produce semantically contaminated outputs, failing to suppress perceptually salient interference from acoustically similar…

Sound · Computer Science 2026-02-18 Zihan Zhang , Xize Cheng , Zhennan Jiang , Dongjie Fu , Jingyuan Chen , Zhou Zhao , Tao Jin

Multiplicative noise, also known as speckle or pepper noise, commonly affects images produced by synthetic aperture radar (SAR), lasers, or optical lenses. Unlike additive noise, which typically arises from thermal processes or external…

Image and Video Processing · Electrical Eng. & Systems 2024-12-16 An Vuong , Thinh Nguyen

The data-centric machine learning aims to find effective ways to build appropriate datasets which can improve the performance of AI models. In this paper, we mainly focus on designing an efficient data-centric scheme to improve robustness…

Machine Learning · Computer Science 2022-03-09 Xiaogeng Liu , Haoyu Wang , Yechao Zhang , Fangzhou Wu , Shengshan Hu

In recent years, low-rank based tensor completion, which is a higher-order extension of matrix completion, has received considerable attention. However, the low-rank assumption is not sufficient for the recovery of visual data, such as…

Computer Vision and Pattern Recognition · Computer Science 2016-09-21 Tatsuya Yokota , Qibin Zhao , Andrzej Cichocki

In this paper, we propose a new method to reconstruct a signal corrupted by noise where both signal and noise are sparse but in different domains. The problem investigated in this paper arises in different applications such as impulsive…

Signal Processing · Electrical Eng. & Systems 2019-04-02 Sahar Sadrizadeh , Nematollah Zarmehi , Ehsan Asadi , Hamidreza Abin , Farokh Marvasti

This paper presents a detailed noise analysis and a noise-based optimization procedure for resonant MEMS structures. A design for high sensitivity of MEMS structures needs to take into account the noise shaping induced by damping phenomena…

Other Computer Science · Computer Science 2008-12-18 Mrigank Sharma , Akila Kannan , Edmond Cretu

This paper examines the performance of a Spatial Pooler (SP) of a Hierarchical Temporal Memory (HTM) in the task of noisy object recognition. To address this challenge, a dedicated custom-designed system based on the SP, histogram…

Computer Vision and Pattern Recognition · Computer Science 2017-03-14 Maciej Wielgosz , Marcin Pietroń

To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

Despite phenomenal progress in recent years, state-of-the-art music separation systems produce source estimates with significant perceptual shortcomings, such as adding extraneous noise or removing harmonics. We propose a post-processing…

Sound · Computer Science 2022-08-29 Noah Schaffer , Boaz Cogan , Ethan Manilow , Max Morrison , Prem Seetharaman , Bryan Pardo

The aim of this study is to implement a method to remove ambient noise in biomedical sounds captured in auscultation. We propose an incremental approach based on multichannel non-negative matrix partial co-factorization (NMPCF) for ambient…