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Noisy images are a challenge to image compression algorithms due to the inherent difficulty of compressing noise. As noise cannot easily be discerned from image details, such as high-frequency signals, its presence leads to extra bits…

图像与视频处理 · 电气工程与系统科学 2024-02-09 Yuxin Xie , Li Yu , Farhad Pakdaman , Moncef Gabbouj

Image denoising is a fundamental problem in image processing whose primary objective is to remove the noise while preserving the original image structure. In this work, we proposed a new architecture for image denoising. We have used…

图像与视频处理 · 电气工程与系统科学 2019-03-25 Sutanu Bera , Avisek Lahiri , Prabir Kumar Biswas

Poisson denoising plays a central role in photon-limited imaging applications such as microscopy, astronomy, and medical imaging. It is common to train deep learning models for denoising using the mean-squared error (MSE) loss, which…

信号处理 · 电气工程与系统科学 2025-10-09 Shirin Shoushtari , Edward P. Chandler , Ulugbek S. Kamilov

We propose a new microscopy simulation system that can depict atomistic models in a micrograph visual style, similar to results of physical electron microscopy imaging. This system is scalable, able to represent simulation of electron…

定量方法 · 定量生物学 2026-03-27 Ngan Nguyen , Feng Liang , Dominik Engel , Ciril Bohak , Peter Wonka , Timo Ropinski , Ivan Viola

Most state of the art deep neural networks are overparameterized and exhibit a high computational cost. A straightforward approach to this problem is to replace convolutional kernels with its low-rank tensor approximations, whereas the…

Digital image devices have been widely applied in many fields, including scientific imaging, recognition of individuals, and remote sensing. As the application of these imaging technologies to autonomous driving and measurement, image noise…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Yang Shao , Toshie Yaguchi , Toshiaki Tanigaki

This paper presents a comparison of several Convolutional Neural Network (CNN) models for extracting target signals in highly noisy measurement conditions. Four CNN architectures were investigated. The first comprises six consecutive…

信号处理 · 电气工程与系统科学 2024-10-11 Andrea Faúndez Quezada , Salvatore La Cavera , Sidahmed A Abayzeed

Fingerprint image denoising is a very important step in fingerprint identification. to improve the denoising effect of fingerprint image,we have designs a fingerprint denoising algorithm based on deep encoder-decoder network,which encoder…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Weiya Fan

Image restoration, including image denoising, super resolution, inpainting, and so on, is a well-studied problem in computer vision and image processing, as well as a test bed for low-level image modeling algorithms. In this work, we…

计算机视觉与模式识别 · 计算机科学 2016-08-31 Xiao-Jiao Mao , Chunhua Shen , Yu-Bin Yang

In this paper, we propose an iterative source error correction (ISEC) decoding scheme for deep-learning-based joint source-channel coding (Deep JSCC). Given a noisy codeword received through the channel, we use a Deep JSCC encoder and…

机器学习 · 计算机科学 2023-02-21 Changwoo Lee , Xiao Hu , Hun-Seok Kim

Image denoising is always a challenging task in the field of computer vision and image processing. In this paper, we have proposed an encoder-decoder model with direct attention, which is capable of denoising and reconstruct highly…

机器学习 · 统计学 2018-01-17 Kazi Nazmul Haque , Mohammad Abu Yousuf , Rajib Rana

Positron emission tomography (PET) is widely used in various clinical applications, including cancer diagnosis, heart disease and neuro disorders. The use of radioactive tracer in PET imaging raises concerns due to the risk of radiation…

计算机视觉与模式识别 · 计算机科学 2017-12-13 Junshen Xu , Enhao Gong , John Pauly , Greg Zaharchuk

Differential dynamic microscopy (DDM) typically relies on movies containing hundreds or thousands of frames to accurately quantify motion in soft matter systems. Using movies much shorter in duration produces noisier and less accurate…

软凝聚态物质 · 物理学 2024-11-05 Gildardo Martinez , Justin Siu , Steven Dang , Dylan Gage , Emma Kao , Juan Carlos Avila , Ruilin You , Ryan McGorty

For reliable transmission across a noisy communication channel, classical results from information theory show that it is asymptotically optimal to separate out the source and channel coding processes. However, this decomposition can fall…

机器学习 · 计算机科学 2019-05-15 Kristy Choi , Kedar Tatwawadi , Aditya Grover , Tsachy Weissman , Stefano Ermon

This paper studies the removal of salt-and-pepper noise from images using median filter (MF) and simple three-layer autoencoder (AE) within recursive threshold algorithm. The performance of denoising is assessed with two metrics: the…

图像与视频处理 · 电气工程与系统科学 2025-11-18 Petr Boriskov , Kirill Rudkovskii , Andrei Velichko

In this work we introduce a new method that combines Parallel MRI and Compressed Sensing (CS) for accelerated image reconstruction from subsampled k-space data. The method first computes a convolved image, which gives the convolution…

医学物理 · 物理学 2021-09-20 Efrat Shimron , Andrew G. Webb , Haim Azhari

A flexible discriminative image denoiser is introduced in which multi-task learning methods are applied to a densoising FCN based on U-Net. The activations of the U-Net model are modified by affine transforms that are a learned function of…

图像与视频处理 · 电气工程与系统科学 2020-11-26 Anthony Kelly

Low fluence illumination sources can facilitate clinical transition of photoacoustic imaging because they are rugged, portable, affordable, and safe. However, these sources also decrease image quality due to their low fluence. Here, we…

图像与视频处理 · 电气工程与系统科学 2020-04-21 Ali Hariri , Kamran Alipour , Yash Mantri , Jurgen P. Schulze , Jesse V. Jokerst

Deep Convolutional Neural Networks (DCNNs) are used extensively in medical image segmentation and hence 3D navigation for robot-assisted Minimally Invasive Surgeries (MISs). However, current DCNNs usually use down sampling layers for…

机器学习 · 计算机科学 2020-06-05 Xiao-Yun Zhou , Jian-Qing Zheng , Peichao Li , Guang-Zhong Yang

Traditional supervised denoisers are trained using pairs of noisy input and clean target images. They learn to predict a central tendency of the posterior distribution over possible clean images. When, e.g., trained with the popular…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Benjamin Salmon , Alexander Krull