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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…

Image and Video Processing · Electrical Eng. & Systems 2022-07-19 Shawkh Ibne Rashid , Elham Shakibapour , Mehran Ebrahimi

Anatomical landmark segmentation and pathology localization are important steps in automated analysis of medical images. They are particularly challenging when the anatomy or pathology is small, as in retinal images and cardiac MRI, or when…

Computer Vision and Pattern Recognition · Computer Science 2019-02-19 Dwarikanath Mahapatra , Behzad Bozorgtabar

High-resolution (HR) magnetic resonance images (MRI) provide detailed anatomical information important for clinical application and quantitative image analysis. However, HR MRI conventionally comes at the cost of longer scan time, smaller…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Yuhua Chen , Feng Shi , Anthony G. Christodoulou , Zhengwei Zhou , Yibin Xie , Debiao Li

Generative Adversarial Networks (GAN) have demonstrated the potential to recover realistic details for single image super-resolution (SISR). To further improve the visual quality of super-resolved results, PIRM2018-SR Challenge employed…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Wenlong Zhang , Yihao Liu , Chao Dong , Yu Qiao

Image super-resolution aims to synthesize high-resolution image from a low-resolution image. It is an active area to overcome the resolution limitations in several applications like low-resolution object-recognition, medical image…

Image and Video Processing · Electrical Eng. & Systems 2023-12-05 Neeraj Baghel , Shiv Ram Dubey , Satish Kumar Singh

Video super-resolution (VSR) has become one of the most critical problems in video processing. In the deep learning literature, recent works have shown the benefits of using adversarial-based and perceptual losses to improve the performance…

Computer Vision and Pattern Recognition · Computer Science 2019-06-26 Alice Lucas , Santiago Lopez Tapia , Rafael Molina , Aggelos K. Katsaggelos

In the past few years, Generative Adversarial Network (GAN) became a prevalent research topic. By defining two convolutional neural networks (G-Network and D-Network) and introducing an adversarial procedure between them during the training…

Computer Vision and Pattern Recognition · Computer Science 2017-04-27 Hengyue Pan , Hui Jiang

Image super-resolution (SR) methods can generate remote sensing images with high spatial resolution without increasing the cost, thereby providing a feasible way to acquire high-resolution remote sensing images, which are difficult to…

Image and Video Processing · Electrical Eng. & Systems 2021-07-15 Meng Xu , Zhihao Wang , Jiasong Zhu , Xiuping Jia , Sen Jia

There is a growing demand for high-resolution (HR) medical images in both the clinical and research applications. Image quality is inevitably traded off with the acquisition time for better patient comfort, lower examination costs, dose,…

Image and Video Processing · Electrical Eng. & Systems 2021-06-07 Kuan Zhang , Haoji Hu , Kenneth Philbrick , Gian Marco Conte , Joseph D. Sobek , Pouria Rouzrokh , Bradley J. Erickson

Magnetic resonance imaging (MRI) is an important medical imaging modality, but its acquisition speed is quite slow due to the physiological limitations. Recently, super-resolution methods have shown excellent performance in accelerating…

Image and Video Processing · Electrical Eng. & Systems 2021-07-22 Guangyuan Li , Jun Lv , Xiangrong Tong , Chengyan Wang , Guang Yang

Recently, it has been demonstrated that deep neural networks can significantly improve the performance of single image super-resolution (SISR). Numerous studies have concentrated on raising the quantitative quality of super-resolved (SR)…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Zheng Hui , Jie Li , Xinbo Gao , Xiumei Wang

Real low-resolution (LR) face images contain degradations which are too varied and complex to be captured by known downsampling kernels and signal-independent noises. So, in order to successfully super-resolve real faces, a method needs to…

Image and Video Processing · Electrical Eng. & Systems 2022-02-09 Saurabh Goswami , Aakanksha , Rajagopalan A. N

Many applications such as forensics, surveillance, satellite imaging, medical imaging, etc., demand High-Resolution (HR) images. However, obtaining an HR image is not always possible due to the limitations of optical sensors and their…

Image and Video Processing · Electrical Eng. & Systems 2022-11-23 Dhruv Patel , Abhinav Jain , Simran Bawkar , Manav Khorasiya , Kalpesh Prajapati , Kishor Upla , Kiran Raja , Raghavendra Ramachandra , Christoph Busch

In this work we propose an adversarial learning approach to generate high resolution MRI scans from low resolution images. The architecture, based on the SRGAN model, adopts 3D convolutions to exploit volumetric information. For the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Irina Sanchez , Veronica Vilaplana

Single Image Super-Resolution (SISR) task refers to learn a mapping from low-resolution images to the corresponding high-resolution ones. This task is known to be extremely difficult since it is an ill-posed problem. Recently, Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2020-01-29 Seyed Mehdi Ayyoubzadeh , Xiaolin Wu

Image quality measurement is a critical problem for image super-resolution (SR) algorithms. Usually, they are evaluated by some well-known objective metrics, e.g., PSNR and SSIM, but these indices cannot provide suitable results in…

Computer Vision and Pattern Recognition · Computer Science 2018-11-02 Xiaotong Luo , Rong Chen , Yuan Xie , Yanyun Qu , Cuihua Li

Acquiring High Resolution (HR) Magnetic Resonance (MR) images requires the patient to remain still for long periods of time, which causes patient discomfort and increases the probability of motion induced image artifacts. A possible…

Image and Video Processing · Electrical Eng. & Systems 2019-12-23 Rewa Sood , Binit Topiwala , Karthik Choutagunta , Rohit Sood , Mirabela Rusu

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…

Image and Video Processing · Electrical Eng. & Systems 2024-11-25 Alireza Aghelan , Modjtaba Rouhani

The generative adversarial network (GAN) is successfully applied to study the perceptual single image superresolution (SISR). However, the GAN often tends to generate images with high frequency details being inconsistent with the real ones.…

Image and Video Processing · Electrical Eng. & Systems 2021-12-28 Ziyang Liu , Zhengguo Li , Xingming Wu , Zhong Liu , Weihai Chen

Recently, most of state-of-the-art single image super-resolution (SISR) methods have attained impressive performance by using deep convolutional neural networks (DCNNs). The existing SR methods have limited performance due to a fixed…

Image and Video Processing · Electrical Eng. & Systems 2021-07-08 Rao Muhammad Umer , Asad Munir , Christian Micheloni