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Ultrasound imaging is pivotal in various medical diagnoses due to its non-invasive nature and safety. In clinical practice, the accuracy and precision of ultrasound image analysis are critical. Recent advancements in deep learning are…

图像与视频处理 · 电气工程与系统科学 2024-08-26 Yuhan Song , Nak Young Chong

Point clouds captured by scanning sensors are often perturbed by noise, which have a highly negative impact on downstream tasks (e.g. surface reconstruction and shape understanding). Previous works mostly focus on training neural networks…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Junsheng Zhou , Xingyu Shi , Haichuan Song , Yi Fang , Yu-Shen Liu , Zhizhong Han

The availability of large-scale datasets has helped unleash the true potential of deep convolutional neural networks (CNNs). However, for the single-image denoising problem, capturing a real dataset is an unacceptably expensive and…

图像与视频处理 · 电气工程与系统科学 2020-03-18 Syed Waqas Zamir , Aditya Arora , Salman Khan , Munawar Hayat , Fahad Shahbaz Khan , Ming-Hsuan Yang , Ling Shao

Building on recent advances in Bayesian statistics and image denoising, we propose Noise2Score3D, a fully unsupervised framework for point cloud denoising. Noise2Score3D learns the score function of the underlying point cloud distribution…

计算机视觉与模式识别 · 计算机科学 2025-10-08 Xiangbin Wei , Yuanfeng Wang , Ao XU , Lingyu Zhu , Dongyong Sun , Keren Li , Yang Li , Qi Qin

Computed tomography (CT) is a popular medical imaging modality in clinical applications. At the same time, the x-ray radiation dose associated with CT scans raises public concerns due to its potential risks to the patients. Over the past…

计算机视觉与模式识别 · 计算机科学 2018-08-13 Chenyu You , Qingsong Yang , Hongming Shan , Lars Gjesteby , Guang Li , Shenghong Ju , Zhuiyang Zhang , Zhen Zhao , Yi Zhang , Wenxiang Cong , Ge Wang

Modeling and synthesizing real sRGB noise is crucial for various low-level vision tasks, such as building datasets for training image denoising systems. The distribution of real sRGB noise is highly complex and affected by a multitude of…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Young Joo Han , Ha-Jin Yu

This work provides a solution to the challenge of small amounts of training data in Non-Destructive Ultrasonic Testing for composite components. It was demonstrated that direct simulation alone is ineffective at producing training data that…

图像与视频处理 · 电气工程与系统科学 2023-11-06 Shaun McKnight , S. Gareth Pierce , Ehsan Mohseni , Christopher MacKinnon , Charles MacLeod , Tom OHare , Charalampos Loukas

Deep Convolutional Neural Networks (CNNs) have been successfully used in many low-level vision problems like image denoising. Although the conditional image generation techniques have led to large improvements in this task, there has been…

图像与视频处理 · 电气工程与系统科学 2020-03-10 Ioannis Marras , Grigorios G. Chrysos , Ioannis Alexiou , Gregory Slabaugh , Stefanos Zafeiriou

In PET, the amount of relative (signal-dependent) noise present in different body regions can be significantly different and is inherently related to the number of counts present in that region. The number of counts in a region depends, in…

图像与视频处理 · 电气工程与系统科学 2022-12-20 Ye Li , Jianan Cui , Junyu Chen , Guodong Zeng , Scott Wollenweber , Floris Jansen , Se-In Jang , Kyungsang Kim , Kuang Gong , Quanzheng Li

As one of the most commonly ordered imaging tests, computed tomography (CT) scan comes with inevitable radiation exposure that increases the cancer risk to patients. However, CT image quality is directly related to radiation dose, thus it…

图像与视频处理 · 电气工程与系统科学 2021-04-27 Xiaowe Xu , Jiawei Zhang , Jinglan Liu , Yukun Ding , Tianchen Wang , Hailong Qiu , Haiyun Yuan , Jian Zhuang , Wen Xie , Yuhao Dong , Qianjun Jia , Meiping Huang , Yiyu Shi

In this work, a denoising Cycle-GAN (Cycle Consistent Generative Adversarial Network) is implemented to yield high-field, high resolution, high signal-to-noise ratio (SNR) Magnetic Resonance Imaging (MRI) images from simulated low-field,…

图像与视频处理 · 电气工程与系统科学 2023-07-14 Fernando Vega , Abdoljalil Addeh , M. Ethan MacDonald

In the last several years deep learning based approaches have come to dominate many areas of computer vision, and image denoising is no exception. Neural networks can learn by example to map noisy images to clean images. However, access to…

图像与视频处理 · 电气工程与系统科学 2023-06-13 Jason Lequyer , Reuben Philip , Amit Sharma , Laurence Pelletier

The explosive rise of the use of Computer tomography (CT) imaging in medical practice has heightened public concern over the patient's associated radiation dose. However, reducing the radiation dose leads to increased noise and artifacts,…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Sutanu Bera , Prabir Kumar Biswas

This paper proposes a deep learning-based denoising method for noisy low-dose computerized tomography (CT) images in the absence of paired training data. The proposed method uses a fidelity-embedded generative adversarial network (GAN) to…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Hyoung Suk Park , Jineon Baek , Sun Kyoung You , Jae Kyu Choi , Jin Keun Seo

Speech enhancement, particularly denoising, is vital in improving the intelligibility and quality of speech signals for real-world applications, especially in noisy environments. While prior research has introduced various deep learning…

Utilizing a low-dose CT approach significantly reduces the radiation exposure for patients, yet it introduces challenges, such as increased noise and artifacts in the resultant images, which can hinder accurate medical diagnostics.…

图像与视频处理 · 电气工程与系统科学 2024-04-03 Helena Shawn , Thompson Chyrikov , Jacob Lanet , Lam-chi Chen , Jim Zhao , Christina Chajo

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

The vast work in Deep Learning (DL) has led to a leap in image denoising research. Most DL solutions for this task have chosen to put their efforts on the denoiser's architecture while maximizing distortion performance. However, distortion…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Guy Ohayon , Theo Adrai , Gregory Vaksman , Michael Elad , Peyman Milanfar

This work tackles the issue of noise removal from images, focusing on the well-known DCT image denoising algorithm. The latter, stemming from signal processing, has been well studied over the years. Though very simple, it is still used in…

图像与视频处理 · 电气工程与系统科学 2022-07-13 Sébastien Herbreteau , Charles Kervrann

Recently, the cycle-consistent generative adversarial networks (CycleGAN) has been widely used for synthesis of multi-domain medical images. The domain-specific nonlinear deformations captured by CycleGAN make the synthesized images…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Chengjia Wang , Gillian Macnaught , Giorgos Papanastasiou , Tom MacGillivray , David Newby