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In this paper we consider the problem of unsupervised anomaly segmentation in medical images, which has attracted increasing attention in recent years due to the expensive pixel-level annotations from experts and the existence of a large…

Image and Video Processing · Electrical Eng. & Systems 2021-12-20 Raunak Dey , Wenbo Sun , Haibo Xu , Yi Hong

Image inpainting techniques have shown promising improvement with the assistance of generative adversarial networks (GANs) recently. However, most of them often suffered from completed results with unreasonable structure or blurriness. To…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Zheng Hui , Jie Li , Xiumei Wang , Xinbo Gao

In this paper, we propose an efficient blood vessel segmentation method for the eye fundus images using adversarial learning with multiscale features and kernel factorization. In the generator network of the adversarial framework, spatial…

Image and Video Processing · Electrical Eng. & Systems 2019-07-08 Farhan Akram , Vivek Kumar Singh , Hatem A. Rashwan , Mohamed Abdel-Nasser , Md. Mostafa Kamal Sarker , Nidhi Pandey , Domenec Puig

We present a novel approach to image manipulation and understanding by simultaneously learning to segment object masks, paste objects to another background image, and remove them from original images. For this purpose, we develop a novel…

Computer Vision and Pattern Recognition · Computer Science 2019-01-17 Pavel Ostyakov , Roman Suvorov , Elizaveta Logacheva , Oleg Khomenko , Sergey I. Nikolenko

Medical anomaly detection is a critical research area aimed at recognizing abnormal images to aid in diagnosis.Most existing methods adopt synthetic anomalies and image restoration on normal samples to detect anomaly. The unlabeled data…

Image and Video Processing · Electrical Eng. & Systems 2024-05-22 Zerui Zhang , Zhichao Sun , Zelong Liu , Bo Du , Rui Yu , Zhou Zhao , Yongchao Xu

Precise identification and localization of disease-specific features at the pixel-level are particularly important for early diagnosis, disease progression monitoring, and effective treatment in medical image analysis. However, conventional…

Image and Video Processing · Electrical Eng. & Systems 2025-02-26 Muhammad Nawaz , Basma Nasir , Tehseen Zia , Zawar Hussain , Catarina Moreira

Recent works show that Generative Adversarial Networks (GANs) can be successfully applied to chest X-ray data augmentation for lung disease recognition. However, the implausible and distorted pathology features generated from the less than…

Image and Video Processing · Electrical Eng. & Systems 2020-01-23 Yunyan Xing , Zongyuan Ge , Rui Zeng , Dwarikanath Mahapatra , Jarrel Seah , Meng Law , Tom Drummond

Reliable classification and detection of certain medical conditions, in images, with state-of-the-art semantic segmentation networks, require vast amounts of pixel-wise annotation. However, the public availability of such datasets is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Erik Ostrowski , Bharath Srinivas Prabakaran , Muhammad Shafique

The large number of trainable parameters of deep neural networks renders them inherently data hungry. This characteristic heavily challenges the medical imaging community and to make things even worse, many imaging modalities are ambiguous…

Neural and Evolutionary Computing · Computer Science 2017-11-29 Simon Kohl , David Bonekamp , Heinz-Peter Schlemmer , Kaneschka Yaqubi , Markus Hohenfellner , Boris Hadaschik , Jan-Philipp Radtke , Klaus Maier-Hein

Image generation remains a fundamental problem in artificial intelligence in general and deep learning in specific. The generative adversarial network (GAN) was successful in generating high quality samples of natural images. We propose a…

Artificial Intelligence · Computer Science 2016-11-15 Hanock Kwak , Byoung-Tak Zhang

This study delves into the application of Generative Adversarial Networks (GANs) within the context of imbalanced datasets. Our primary aim is to enhance the performance and stability of GANs in such datasets. In pursuit of this objective,…

Machine Learning · Computer Science 2023-12-11 Ali Anaissi , Yuanzhe Jia , Ali Braytee , Mohamad Naji , Widad Alyassine

Fetal brain magnetic resonance imaging serves as an emerging modality for prenatal counseling and diagnosis in disorders affecting the brain. Machine learning based segmentation plays an important role in the quantification of brain…

Image and Video Processing · Electrical Eng. & Systems 2022-09-21 Marina Fernandez Garcia , Rodrigo Gonzalez Laiz , Hui Ji , Kelly Payette , Andras Jakab

We propose a unified Generative Adversarial Network (GAN) for controllable image-to-image translation, i.e., transferring an image from a source to a target domain guided by controllable structures. In addition to conditioning on a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-28 Hao Tang , Hong Liu , Nicu Sebe

Conditional Generative Adversarial Networks (cGANs) have been used in many image processing tasks. However, they still have serious problems maintaining the balance between conditioning the output on the input and creating the output with…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Mohammadreza Naderi , Zahra Nabizadeh , Nader Karimi , Shahram Shirani , Shadrokh Samavi

Computed tomography (CT) uses X-ray measurements taken from sensors around the body to generate tomographic images of the human body. Conventional reconstruction algorithms can be used if the X-ray data are adequately sampled and of high…

Image and Video Processing · Electrical Eng. & Systems 2021-12-28 Ruiwen Xing , Thomas Humphries , Dong Si

Computed medical imaging systems require a computational reconstruction procedure for image formation. In order to recover a useful estimate of the object to-be-imaged when the recorded measurements are incomplete, prior knowledge about the…

Image and Video Processing · Electrical Eng. & Systems 2022-02-21 Varun A. Kelkar , Mark A. Anastasio

Neural network-based approaches can achieve high accuracy in various medical image segmentation tasks. However, they generally require large labelled datasets for supervised learning. Acquiring and manually labelling a large medical dataset…

Image and Video Processing · Electrical Eng. & Systems 2020-06-25 Chen Chen , Chen Qin , Huaqi Qiu , Cheng Ouyang , Shuo Wang , Liang Chen , Giacomo Tarroni , Wenjia Bai , Daniel Rueckert

In medical applications, the same anatomical structures may be observed in multiple modalities despite the different image characteristics. Currently, most deep models for multimodal segmentation rely on paired registered images. However,…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Wenguang Yuan , Jia Wei , Jiabing Wang , Qianli Ma , Tolga Tasdizen

Large, fine-grained image segmentation datasets, annotated at pixel-level, are difficult to obtain, particularly in medical imaging, where annotations also require expert knowledge. Weakly-supervised learning can train models by relying on…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Gabriele Valvano , Andrea Leo , Sotirios A. Tsaftaris

In this paper, we propose an Attentional Generative Adversarial Network (AttnGAN) that allows attention-driven, multi-stage refinement for fine-grained text-to-image generation. With a novel attentional generative network, the AttnGAN can…

Computer Vision and Pattern Recognition · Computer Science 2017-11-30 Tao Xu , Pengchuan Zhang , Qiuyuan Huang , Han Zhang , Zhe Gan , Xiaolei Huang , Xiaodong He