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Generative adversarial networks (GANs) offer an effective solution to the image-to-image translation problem, thereby allowing for new possibilities in medical imaging. They can translate images from one imaging modality to another at a low…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Agnieszka Tomczak , Aarushi Gupta , Slobodan Ilic , Nassir Navab , Shadi Albarqouni

Image denoising aims to remove noise while preserving structural details and perceptual realism, yet distortion-driven methods often produce over-smoothed reconstructions, especially under strong noise and distribution shift. This paper…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Nam Nguyen , Thinh Nguyen , Bella Bose

Most of current display devices are with eight or higher bit-depth. However, the quality of most multimedia tools cannot achieve this bit-depth standard for the generating images. De-quantization can improve the visual quality of low…

图像与视频处理 · 电气工程与系统科学 2020-04-08 Yang Zhang , Changhui Hu , Xiaobo Lu

Enhanced Super-Resolution Generative Adversarial Network (ESRGAN) is a perceptual-driven approach for single image super resolution that is able to produce photorealistic images. Despite the visual quality of these generated images, there…

图像与视频处理 · 电气工程与系统科学 2020-07-16 Nathanaël Carraz Rakotonirina , Andry Rasoanaivo

The cryo-electron microscopy (Cryo-EM) becomes popular for macromolecular structure determination. However, the 2D images which Cryo-EM detects are of high noise and often mixed with multiple heterogeneous conformations or contamination,…

图像与视频处理 · 电气工程与系统科学 2022-02-22 Hanlin Gu , Yin Xian , Ilona Christy Unarta , Yuan Yao

In this paper, a novel strategy of Secure Steganograpy based on Generative Adversarial Networks is proposed to generate suitable and secure covers for steganography. The proposed architecture has one generative network, and two…

计算机视觉与模式识别 · 计算机科学 2018-11-27 Haichao Shi , Jing Dong , Wei Wang , Yinlong Qian , Xiaoyu Zhang

Electron tomography is becoming an increasingly important tool in materials science for studying the three-dimensional morphologies and chemical compositions of nanostructures. The image quality obtained by many current algorithms is…

Deep generative models provide powerful tools for distributions over complicated manifolds, such as those of natural images. But many of these methods, including generative adversarial networks (GANs), can be difficult to train, in part…

机器学习 · 统计学 2017-11-08 Akash Srivastava , Lazar Valkov , Chris Russell , Michael U. Gutmann , Charles Sutton

We propose a noise-resilient deep reconstruction algorithm for X-ray tomography. Our approach shows strong noise resilience without obtaining noisy training examples. The advantages of our framework may further enable low-photon tomographic…

图像与视频处理 · 电气工程与系统科学 2022-11-29 Zhen Guo , Zhiguang Liu , Qihang Zhang , George Barbastathis , Michael E. Glinsky

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

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 most interactive image generation tasks, given regions of interest (ROI) by users, the generated results are expected to have adequate diversities in appearance while maintaining correct and reasonable structures in original images. Such…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Jinshu Chen , Qihui Xu , Qi Kang , MengChu Zhou

Spatial resolution of medical images can be improved using super-resolution methods. Real Enhanced Super Resolution Generative Adversarial Network (Real-ESRGAN) is one of the recent effective approaches utilized to produce higher resolution…

图像与视频处理 · 电气工程与系统科学 2022-07-19 Shawkh Ibne Rashid , Elham Shakibapour , Mehran Ebrahimi

The objective optimization of medical imaging systems requires full characterization of all sources of randomness in the measured data, which includes the variability within the ensemble of objects to-be-imaged. This can be accomplished by…

图像与视频处理 · 电气工程与系统科学 2020-01-28 Weimin Zhou , Sayantan Bhadra , Frank J. Brooks , Hua Li , Mark A. Anastasio

In the field of medical image analysis, there is a substantial need for high-resolution (HR) images to improve diagnostic accuracy. However, it is a challenging task to obtain HR medical images, as it requires advanced instruments and…

图像与视频处理 · 电气工程与系统科学 2024-11-25 Alireza Aghelan , Modjtaba Rouhani

We propose an end-to-end differentiable architecture for tomography reconstruction that directly maps a noisy sinogram into a denoised reconstruction. Compared to existing approaches our end-to-end architecture produces more accurate…

图像与视频处理 · 电气工程与系统科学 2020-11-30 Matteo Ronchetti , Davide Bacciu

Inverse problems generally require a regularizer or prior for a good solution. A recent trend is to train a convolutional net to denoise images, and use this net as a prior when solving the inverse problem. Several proposals depend on a…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Kyle Luther , H. Sebastian Seung

Computed tomography (CT) is widely used in screening, diagnosis, and image-guided therapy for both clinical and research purposes. Since CT involves ionizing radiation, an overarching thrust of related technical research is development of…

图像与视频处理 · 电气工程与系统科学 2019-06-25 Chenyu You , Guang Li , Yi Zhang , Xiaoliu Zhang , Hongming Shan , Shenghong Ju , Zhen Zhao , Zhuiyang Zhang , Wenxiang Cong , Michael W. Vannier , Punam K. Saha , Ge Wang

We present a learned image compression system based on GANs, operating at extremely low bitrates. Our proposed framework combines an encoder, decoder/generator and a multi-scale discriminator, which we train jointly for a generative learned…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Eirikur Agustsson , Michael Tschannen , Fabian Mentzer , Radu Timofte , Luc Van Gool

The quality of the reconstructed photoacoustic image largely depends on the amount of photoacoustic (PA) boundary data available, which in turn is proportional to the number of detectors employed. In case of limited data (owing to less…

图像与视频处理 · 电气工程与系统科学 2020-01-20 Navchetan Awasthi , Rohit Pardasani , Sandeep Kumar Kalva , Manojit Pramanik , Phaneendra K. Yalavarthy