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Direct reconstruction of positron emission tomography (PET) data using deep neural networks is a growing field of research. Initial results are promising, but often the networks are complex, memory utilization inefficient, produce…

Image and Video Processing · Electrical Eng. & Systems 2020-06-16 William Whiteley , Vladimir Panin , Chuanyu Zhou , Jorge Cabello , Deepak Bharkhada , Jens Gregor

Recent work has shown improved lesion detectability and flexibility to reconstruction hyperparameters (e.g. scanner geometry or dose level) when PET images are reconstructed by leveraging pre-trained diffusion models. Such methods train a…

Medical Physics · Physics 2025-08-28 George Webber , Alexander Hammers , Andrew P. King , Andrew J. Reader

We propose a novel model named Multi-Channel Attention Selection Generative Adversarial Network (SelectionGAN) for guided image-to-image translation, where we translate an input image into another while respecting an external semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Hao Tang , Philip H. S. Torr , Nicu Sebe

Generative adversarial networks (GANs) have made remarkable achievements in synthesizing images in recent years. Typically, training GANs requires massive data, and the performance of GANs deteriorates significantly when training data is…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Mengping Yang , Zhe Wang , Ziqiu Chi , Dongdong Li , Wenli Du

The generative adversarial network (GAN) is one of the most widely used deep generative models for synthesizing high-quality images with the same statistics as the training set. Finite element method (FEM) based property prediction often…

Materials Science · Physics 2025-07-03 Owais Ahmad , Vishal Panwar , Kaushik Das , Rajdip Mukherjee , Somnath Bhowmick

Generative Adversarial Networks (GANs) have been used in many different applications to generate realistic synthetic data. We introduce a novel GAN with Autoencoder (GAN-AE) architecture to generate synthetic samples for variable length,…

Machine Learning · Computer Science 2022-10-10 Stephanie Ger , Yegna Subramanian Jambunath , Diego Klabjan

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…

Image and Video Processing · Electrical Eng. & Systems 2020-04-08 Yang Zhang , Changhui Hu , Xiaobo Lu

Acquisition of Synthetic Aperture Sonar (SAS) datasets is bottlenecked by the costly deployment of SAS imaging systems, and even when data acquisition is possible,the data is often skewed towards containing barren seafloor rather than…

Image and Video Processing · Electrical Eng. & Systems 2019-10-04 Albert Reed , Isaac Gerg , John McKay , Daniel Brown , David Williams , Suren Jayasuriya

Score-based generative models have demonstrated highly promising results for medical image reconstruction tasks in magnetic resonance imaging or computed tomography. However, their application to Positron Emission Tomography (PET) is still…

Image and Video Processing · Electrical Eng. & Systems 2024-01-24 Imraj RD Singh , Alexander Denker , Riccardo Barbano , Željko Kereta , Bangti Jin , Kris Thielemans , Peter Maass , Simon Arridge

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

Generative adversarial networks (GANs) have drawn enormous attention due to the simple yet effective training mechanism and superior image generation quality. With the ability to generate photo-realistic high-resolution (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Ming Liu , Yuxiang Wei , Xiaohe Wu , Wangmeng Zuo , Lei Zhang

To obtain high-quality Positron emission tomography (PET) images while minimizing radiation exposure, numerous methods have been proposed to reconstruct standard-dose PET (SPET) images from the corresponding low-dose PET (LPET) images.…

Image and Video Processing · Electrical Eng. & Systems 2024-04-10 Jiaqi Cui , Yan Wang , Lu Wen , Pinxian Zeng , Xi Wu , Jiliu Zhou , Dinggang Shen

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,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-16 Antonia Creswell , Anil A Bharath

State-of-the-art methods in image-to-image translation are capable of learning a mapping from a source domain to a target domain with unpaired image data. Though the existing methods have achieved promising results, they still produce…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Hao Tang , Hong Liu , Dan Xu , Philip H. S. Torr , Nicu Sebe

Generative adversarial networks (GANs) are unsupervised Deep Learning approach in the computer vision community which has gained significant attention from the last few years in identifying the internal structure of multimodal medical…

Image and Video Processing · Electrical Eng. & Systems 2020-05-22 Nripendra Kumar Singh , Khalid Raza

Training computer-vision related algorithms on medical images for disease diagnosis or image segmentation is difficult due to the lack of training data, labeled samples, and privacy concerns. For this reason, a robust generative method to…

Image and Video Processing · Electrical Eng. & Systems 2021-11-04 Robert V Bergen , Jean-Francois Rajotte , Fereshteh Yousefirizi , Ivan S Klyuzhin , Arman Rahmim , Raymond T. Ng

Recently deep learning methods, in particular, convolutional neural networks (CNNs), have led to a massive breakthrough in the range of computer vision. Also, the large-scale annotated dataset is the essential key to a successful training…

Image and Video Processing · Electrical Eng. & Systems 2020-11-17 Chang Qi , Junyang Chen , Guizhi Xu , Zhenghua Xu , Thomas Lukasiewicz , Yang Liu

Face aging, which aims at aesthetically rendering a given face to predict its future appearance, has received significant research attention in recent years. Although great progress has been achieved with the success of Generative…

Computer Vision and Pattern Recognition · Computer Science 2019-11-18 Yunfan Liu , Qi Li , Zhenan Sun , Tieniu Tan

As a sensitive functional imaging technique, positron emission tomography (PET) plays a critical role in early disease diagnosis. However, obtaining a high-quality PET image requires injecting a sufficient dose (standard dose) of…

Image and Video Processing · Electrical Eng. & Systems 2024-12-06 Caiwen Jiang , Mianxin Liu , Kaicong Sun , Dinggang Shen

Precision devices play an important role in enhancing production quality and productivity in agricultural systems. Therefore, the optimization of these devices is essential in precision agriculture. Recently, with the advancements of deep…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Tan-Hanh Pham , Kim-Doang Nguyen