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Recently, super-resolution ultrasound imaging with ultrasound localization microscopy (ULM) has received much attention. However, ULM relies on low concentrations of microbubbles in the blood vessels, ultimately resulting in long…

Image denoising stands as a critical challenge in image processing and computer vision, aiming to restore the original image from noise-affected versions caused by various intrinsic and extrinsic factors. This process is essential for…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Peter Luvton , Alfredo Castillejos , Jim Zhao , Christina Chajo

Image denoising is an essential part of many image processing and computer vision tasks due to inevitable noise corruption during image acquisition. Traditionally, many researchers have investigated image priors for the denoising, within…

Computer Vision and Pattern Recognition · Computer Science 2021-01-19 Jae Woong Soh , Nam Ik Cho

In this paper, we propose a novel convolutional neural network (CNN) architecture considering both local and global features for image enhancement. Most conventional image enhancement methods, including Retinex-based methods, cannot restore…

Image and Video Processing · Electrical Eng. & Systems 2019-05-09 Yuma Kinoshita , Hitoshi Kiya

Since convolutional neural networks perform well in learning generalizable image priors from large-scale data, these models have been widely used in image denoising tasks. However, the computational complexity increases dramatically as well…

Image and Video Processing · Electrical Eng. & Systems 2022-07-29 Yuanfan Zhang , Gen Li , Lei Sun

During the acquisition of an image from its source, noise always becomes an integral part of it. Various algorithms have been used in past to denoise the images. Image denoising still has scope for improvement. Visual information…

Image and Video Processing · Electrical Eng. & Systems 2019-09-17 Santosh Paudel , Ajay Kumar Shrestha , Pradip Singh Maharjan , Rameshwar Rijal

In breast ultrasound images, precise lesion segmentation is essential for early diagnosis; however, low contrast, speckle noise, and unclear boundaries make this difficult. Even though deep learning models have demonstrated potential,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Prateek Singh , Moumita Dholey , P. K. Vinod

Due to the fast inference and good performance, discriminative learning methods have been widely studied in image denoising. However, these methods mostly learn a specific model for each noise level, and require multiple models for…

Computer Vision and Pattern Recognition · Computer Science 2018-08-01 Kai Zhang , Wangmeng Zuo , Lei Zhang

We introduce a paradigm for nonlocal sparsity reinforced deep convolutional neural network denoising. It is a combination of a local multiscale denoising by a convolutional neural network (CNN) based denoiser and a nonlocal denoising based…

Image and Video Processing · Electrical Eng. & Systems 2018-08-15 Cristóvão Cruz , Alessandro Foi , Vladimir Katkovnik , Karen Egiazarian

Low-dose computed tomography (LDCT) has become the technology of choice for diagnostic medical imaging, given its lower radiation dose compared to standard CT, despite increasing image noise and potentially affecting diagnostic accuracy. To…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Bin Wang , Fei Deng , Peifan Jiang , Shuang Wang , Xiao Han , Zhixuan Zhang

Ultrasonic imaging is being used to obtain information about the acoustic properties of a medium by emitting waves into it and recording their interaction using ultrasonic transducer arrays. The Delay-And-Sum (DAS) algorithm forms images…

Image and Video Processing · Electrical Eng. & Systems 2021-11-23 Georgios Pilikos , Lars Horchens , Tristan van Leeuwen , Felix Lucka

Segmenting ultrasound images is critical for various medical applications, but it offers significant challenges due to ultrasound images' inherent noise and unpredictability. To address these challenges, we proposed EUIS-Net, a CNN network…

Image and Video Processing · Electrical Eng. & Systems 2024-08-23 Shahzaib Iqbal , Hasnat Ahmed , Muhammad Sharif , Madiha Hena , Tariq M. Khan , Imran Razzak

The non-local network has become a widely used technique for semantic segmentation, which computes an attention map to measure the relationships of each pixel pair. However, most of the current popular non-local models tend to ignore the…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Qi Song , Jie Li , Hao Guo , Rui Huang

Convolutional Neural Network (CNN) has been widely used in unstructured datasets, one of which is image denoising. Image denoising is a noisy image reconstruction process that aims to reduce additional noise that occurs from the noisy image…

Computer Vision and Pattern Recognition · Computer Science 2025-02-14 Bintang Pradana Erlangga Putra , Heri Prasetyo , Esti Suryani

In image denoising networks, feature scaling is widely used to enlarge the receptive field size and reduce computational costs. This practice, however, also leads to the loss of high-frequency information and fails to consider within-scale…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Hao Shen , Zhong-Qiu Zhao , Wandi Zhang

Accurate detection of ultrasound nodules is essential for the early diagnosis and treatment of thyroid and breast cancers. However, this task remains challenging due to irregular nodule shapes, indistinct boundaries, substantial scale…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Jingjing Wang , Zhuo Xiao , Xinning Yao , Bo Liu , Lijuan Niu , Xiangzhi Bai , Fugen Zhou

Ultrasound Shear Wave Elastography (SWE) is a noteworthy tool for in-vivo noninvasive tissue pathology assessment. State-of-the-art techniques can generate reasonable estimates of tissue elasticity, but high-quality and noise-resiliency in…

Image and Video Processing · Electrical Eng. & Systems 2024-07-31 Md. Jahin Alam , Ahsan Habib , Md. Kamrul Hasan

Achieving high-performance audio denoising is still a challenging task in real-world applications. Existing time-frequency methods often ignore the quality of generated frequency domain images. This paper converts the audio denoising…

Sound · Computer Science 2023-10-26 Youshan Zhang , Jialu Li

Spectroscopy represents the ideal observational method to maximally extract information from galaxies regarding their star formation and chemical enrichment histories. However, absorption spectra of galaxies prove rather challenging at high…

Instrumentation and Methods for Astrophysics · Physics 2025-10-10 Oliver Camilleri , Zahra Sharbaf , Ignacio Ferreras

Accurate segmentation of breast tumors in magnetic resonance images (MRI) is essential for breast cancer diagnosis, yet existing methods face challenges in capturing irregular tumor shapes and effectively integrating local and global…

Image and Video Processing · Electrical Eng. & Systems 2025-09-22 Yue Zhang , Jiahua Dong , Chengtao Peng , Qiuli Wang , Dan Song , Guiduo Duan
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