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Inverting a Generative Adversarial Network (GAN) facilitates a wide range of image editing tasks using pre-trained generators. Existing methods typically employ the latent space of GANs as the inversion space yet observe the insufficient…

计算机视觉与模式识别 · 计算机科学 2022-07-28 Qingyan Bai , Yinghao Xu , Jiapeng Zhu , Weihao Xia , Yujiu Yang , Yujun Shen

Noise and artifacts are intrinsic to low dose CT (LDCT) data acquisition, and will significantly affect the imaging performance. Perfect noise removal and image restoration is intractable in the context of LDCT due to the statistical and…

医学物理 · 物理学 2019-07-24 Wenchao Du , Hu Chen , Peixi Liao , Hongyu Yang , Ge Wang , Yi Zhang

Generative adversarial networks (GANs) learn a deep generative model that is able to synthesise novel, high-dimensional data samples. New data samples are synthesised by passing latent samples, drawn from a chosen prior distribution,…

计算机视觉与模式识别 · 计算机科学 2018-02-16 Antonia Creswell , Anil A Bharath

Magnetic Resonance Imaging (MRI) is a vital component of medical imaging. When compared to other image modalities, it has advantages such as the absence of radiation, superior soft tissue contrast, and complementary multiple sequence…

图像与视频处理 · 电气工程与系统科学 2021-05-06 Guang Yang , Jun Lv , Yutong Chen , Jiahao Huang , Jin Zhu

Magnetic resonance imaging (MRI) is one of the best medical imaging modalities as it offers excellent spatial resolution and soft-tissue contrast. But, the usage of MRI is limited by its slow acquisition time, which makes it expensive and…

图像与视频处理 · 电气工程与系统科学 2019-08-27 Balamurali Murugesan , Vijaya Raghavan S , Kaushik Sarveswaran , Keerthi Ram , Mohanasankar Sivaprakasam

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

Compressed sensing (CS) leverages the sparsity prior to provide the foundation for fast magnetic resonance imaging (fastMRI). However, iterative solvers for ill-posed problems hinder their adaption to time-critical applications. Moreover,…

图像与视频处理 · 电气工程与系统科学 2021-03-16 Jingshuai Liu , Mehrdad Yaghoobi

Image generation has been heavily investigated in computer vision, where one core research challenge is to generate images from arbitrarily complex distributions with little supervision. Generative Adversarial Networks (GANs) as an implicit…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Hui Ying , He Wang , Tianjia Shao , Yin Yang , Kun Zhou

The field of computational imaging has witnessed a promising paradigm shift with the emergence of untrained neural networks, offering novel solutions to inverse computational imaging problems. While existing techniques have demonstrated…

图像与视频处理 · 电气工程与系统科学 2024-11-28 Abeer Banerjee , Sanjay Singh

Natural images can be regarded as residing in a manifold that is embedded in a higher dimensional Euclidean space. Generative Adversarial Networks (GANs) try to learn the distribution of the real images in the manifold to generate samples…

图像与视频处理 · 电气工程与系统科学 2021-01-12 Sheng Zhong , Shifu Zhou

Generative networks are fundamentally different in their aim and methods compared to CNNs for classification, segmentation, or object detection. They have initially not been meant to be an image analysis tool, but to produce naturally…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Markus Wenzel

In recent years, Generative Adversarial Networks have become ubiquitous in both research and public perception, but how GANs convert an unstructured latent code to a high quality output is still an open question. In this work, we…

计算机视觉与模式识别 · 计算机科学 2021-06-07 Lucy Chai , Jonas Wulff , Phillip Isola

Recent advancements in real image editing have been attributed to the exploration of Generative Adversarial Networks (GANs) latent space. However, the main challenge of this procedure is GAN inversion, which aims to map the image to the…

计算机视觉与模式识别 · 计算机科学 2023-09-01 Egor Sevriugov , Ivan Oseledets

Generative Adversarial Networks (GANs) have surfaced as a revolutionary element within the domain of low-dose computed tomography (LDCT) imaging, providing an advanced resolution to the enduring issue of reconciling radiation exposure with…

图像与视频处理 · 电气工程与系统科学 2025-02-05 Yunuo Wang , Ningning Yang , Jialin Li

In recent years, neural network approaches have been widely adopted for machine learning tasks, with applications in computer vision. More recently, unsupervised generative models based on neural networks have been successfully applied to…

机器学习 · 计算机科学 2018-02-06 Maya Kabkab , Pouya Samangouei , Rama Chellappa

Solving inverse problems continues to be a challenge in a wide array of applications ranging from deblurring, image inpainting, source separation etc. Most existing techniques solve such inverse problems by either explicitly or implicitly…

计算机视觉与模式识别 · 计算机科学 2018-06-05 Rushil Anirudh , Jayaraman J. Thiagarajan , Bhavya Kailkhura , Timo Bremer

The traditional approach of hand-crafting priors (such as sparsity) for solving inverse problems is slowly being replaced by the use of richer learned priors (such as those modeled by generative adversarial networks, or GANs). In this work,…

机器学习 · 计算机科学 2018-10-09 Chinmay Hegde

We propose a GAN-based image compression method working at extremely low bitrates below 0.1bpp. Most existing learned image compression methods suffer from blur at extremely low bitrates. Although GAN can help to reconstruct sharp images,…

图像与视频处理 · 电气工程与系统科学 2023-06-01 Shoma Iwai , Tomo Miyazaki , Yoshihiro Sugaya , Shinichiro Omachi

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

Generative adversarial networks (GANs) have been extensively studied in the past few years. Arguably their most significant impact has been in the area of computer vision where great advances have been made in challenges such as plausible…

机器学习 · 计算机科学 2021-01-01 Zhengwei Wang , Qi She , Tomas E. Ward