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相关论文: A Regularized Conditional GAN for Posterior Sampli…

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In ill-posed imaging inverse problems, there can exist many hypotheses that fit both the observed measurements and prior knowledge of the true image. Rather than returning just one hypothesis of that image, posterior samplers aim to explore…

图像与视频处理 · 电气工程与系统科学 2024-11-04 Matthew C. Bendel , Rizwan Ahmad , Philip Schniter

Image inpainting is a restoration method that reconstructs missing image parts. However, a carefully selected mask of known pixels that yield a high quality inpainting can also act as a sparse image representation. This challenging spatial…

图像与视频处理 · 电气工程与系统科学 2022-12-05 Pascal Peter

In this paper, a methodology is investigated for signal recovery in the presence of non-Gaussian noise. In contrast with regularized minimization approaches often adopted in the literature, in our algorithm the regularization parameter is…

最优化与控制 · 数学 2017-01-23 Yosra Marnissi , Yuling Zheng , Emilie Chouzenoux , Jean-Christophe Pesquet

In this work, we train conditional Wasserstein generative adversarial networks to effectively sample from the posterior of physics-based Bayesian inference problems. The generator is constructed using a U-Net architecture, with the latent…

机器学习 · 统计学 2022-11-21 Deep Ray , Harisankar Ramaswamy , Dhruv V. Patel , Assad A. Oberai

Lack of ground-truth MR images impedes the common supervised training of neural networks for image reconstruction. To cope with this challenge, this paper leverages unpaired adversarial training for reconstruction networks, where the inputs…

图像与视频处理 · 电气工程与系统科学 2021-05-14 Ke Lei , Morteza Mardani , John M. Pauly , Shreyas S. Vasanawala

With the rise of large radio interferometric telescopes, particularly the SKA, there is a growing demand for computationally efficient image reconstruction techniques. Existing reconstruction methods, such as the CLEAN algorithm or proximal…

天体物理仪器与方法 · 物理学 2025-07-30 Matthijs Mars , Tobías I. Liaudat , Jessica J. Whitney , Marta M. Betcke , Jason D. McEwen

Learning based single image super resolution (SISR) task is well investigated in 2D images. However, SISR for 3D Magnetics Resonance Images (MRI) is more challenging compared to 2D, mainly due to the increased number of neural network…

图像与视频处理 · 电气工程与系统科学 2023-03-27 Qi Wang , Lucas Mahler , Julius Steiglechner , Florian Birk , Klaus Scheffler , Gabriele Lohmann

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

There remains an important need for the development of image reconstruction methods that can produce diagnostically useful images from undersampled measurements. In magnetic resonance imaging (MRI), for example, such methods can facilitate…

图像与视频处理 · 电气工程与系统科学 2021-06-28 Varun A. Kelkar , Sayantan Bhadra , Mark A. Anastasio

Synthesizing high resolution photorealistic images has been a long-standing challenge in machine learning. In this paper we introduce new methods for the improved training of generative adversarial networks (GANs) for image synthesis. We…

机器学习 · 统计学 2017-07-24 Augustus Odena , Christopher Olah , Jonathon Shlens

Image reconstruction including image restoration and denoising is a challenging problem in the field of image computing. We present a new method, called X-GANs, for reconstruction of arbitrary corrupted resource based on a variant of…

计算机视觉与模式识别 · 计算机科学 2018-08-15 Longfei Liu , Sheng Li , Yisong Chen , Guoping Wang

As a powerful technique in medical imaging, image synthesis is widely used in applications such as denoising, super resolution and modality transformation etc. Recently, the revival of deep neural networks made immense progress in the field…

图像与视频处理 · 电气工程与系统科学 2021-04-23 Gengyan Zhao , Mary E. Meyerand , Rasmus M. Birn

Positron emission tomography (PET) is an important functional medical imaging technique often used in the evaluation of certain brain disorders, whose reconstruction problem is ill-posed. The vast majority of reconstruction methods in PET…

图像与视频处理 · 电气工程与系统科学 2023-06-09 Tin Vlašić , Tomislav Matulić , Damir Seršić

Image generation and image completion are rapidly evolving fields, thanks to machine learning algorithms that are able to realistically replace missing pixels. However, generating large high resolution images, with a large level of details,…

计算机视觉与模式识别 · 计算机科学 2022-11-29 Renato Cardoso , Sofia Vallecorsa , Edoardo Nemni

Deep generative models are proficient in generating realistic data but struggle with producing rare samples in low density regions due to their scarcity of training datasets and the mode collapse problem. While recent methods aim to improve…

计算机视觉与模式识别 · 计算机科学 2025-01-08 Subeen Lee , Jiyeon Han , Soyeon Kim , Jaesik Choi

This report has several purposes. First, our report is written to investigate the reproducibility of the submitted paper On the regularization of Wasserstein GANs (2018). Second, among the experiments performed in the submitted paper, five…

机器学习 · 计算机科学 2017-12-19 Junghoon Seo , Taegyun Jeon

Deep generative models have achieved conspicuous progress in realistic image synthesis with multifarious conditional inputs, while generating diverse yet high-fidelity images remains a grand challenge in conditional image generation. This…

计算机视觉与模式识别 · 计算机科学 2022-07-25 Fangneng Zhan , Yingchen Yu , Rongliang Wu , Jiahui Zhang , Kaiwen Cui , Changgong Zhang , Shijian Lu

Capturing high-resolution magnetic resonance (MR) images is a time consuming process, which makes it unsuitable for medical emergencies and pediatric patients. Low-resolution MR imaging, by contrast, is faster than its high-resolution…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Sahar Almahfouz Nasser , Saqib Shamsi , Valay Bundele , Bhavesh Garg , Amit Sethi

We present a method to restore a clear image from a haze-affected image using a Wasserstein generative adversarial network. As the problem is ill-conditioned, previous methods have required a prior on natural images or multiple images of…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Joshua Peter Ebenezer , Bijaylaxmi Das , Sudipta Mukhopadhyay

Medical image reconstruction is typically an ill-posed inverse problem. In order to address such ill-posed problems, the prior distribution of the sought after object property is usually incorporated by means of some sparsity-promoting…

图像与视频处理 · 电气工程与系统科学 2020-01-30 Sayantan Bhadra , Weimin Zhou , Mark A. Anastasio
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