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Skin cancer is one of the most common types of cancer around the world. For this reason, over the past years, different approaches have been proposed to assist detect it. Nonetheless, most of them are based only on dermoscopy images and do…

Image and Video Processing · Electrical Eng. & Systems 2019-11-20 Andre G. C. Pacheco , Renato A. Krohling

Photoacoustic tomography (PAT) has the potential to recover morphological and functional tissue properties with high spatial resolution. However, previous attempts to solve the optical inverse problem with supervised machine learning were…

Image and Video Processing · Electrical Eng. & Systems 2022-10-26 Melanie Schellenberg , Janek Gröhl , Kris K. Dreher , Jan-Hinrich Nölke , Niklas Holzwarth , Minu D. Tizabi , Alexander Seitel , Lena Maier-Hein

Deep learning has shown excellent performance in analysing medical images. However, datasets are difficult to obtain due privacy issues, standardization problems, and lack of annotations. We address these problems by producing realistic…

Image and Video Processing · Electrical Eng. & Systems 2022-02-18 Enric Moreu , Kevin McGuinness , Noel E. O'Connor

Recently, deep learning (DL)-based methods for the generation of synthetic computed tomography (sCT) have received significant research attention as an alternative to classical ones. We present here a systematic review of these methods by…

Medical Physics · Physics 2021-08-30 Maria Francesca Spadea , Matteo Maspero , Paolo Zaffino , Joao Seco

Understanding the intensity characteristics of brain lesions is key for defining image-based biomarkers in neurological studies and for predicting disease burden and outcome. In this work, we present a novel foreground-based generative…

Image and Video Processing · Electrical Eng. & Systems 2022-08-04 Berke Doga Basaran , Mengyun Qiao , Paul M. Matthews , Wenjia Bai

Convolutional Neural Networks (CNNs) have been recently employed to solve problems from both the computer vision and medical image analysis fields. Despite their popularity, most approaches are only able to process 2D images while most…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Fausto Milletari , Nassir Navab , Seyed-Ahmad Ahmadi

Objective: Four-dimensional computed tomography (4DCT) imaging consists in reconstructing a CT acquisition into multiple phases to track internal organ and tumor motion. It is commonly used in radiotherapy treatment planning to establish…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Yi-Heng Cao , Vincent Bourbonne , François Lucia , Ulrike Schick , Julien Bert , Vincent Jaouen , Dimitris Visvikis

The discovery of patient-specific imaging markers that are predictive of future disease outcomes can help us better understand individual-level heterogeneity of disease evolution. In fact, deep learning models that can provide data-driven…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Amar Kumar , Anjun Hu , Brennan Nichyporuk , Jean-Pierre R. Falet , Douglas L. Arnold , Sotirios Tsaftaris , Tal Arbel

Supervised synthetic CT generation from CBCT requires registered training pairs, yet perfect registration between separately acquired scans remains unattainable. This registration bias propagates into trained models and corrupts standard…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Lukas Zimmermann , Michael Rauter , Maximilian Schmid , Dietmar Georg , Barbara Knäusl

Purpose: To implement a framework generating synthetic spectral panoramic images from single energy CT volumes. Using the framework output to compare the synthetic images against experimental spectral panoramic images for…

Chest X-rays (CXR) are essential for diagnosing a variety of conditions, but when used on new populations, model generalizability issues limit their efficacy. Generative AI, particularly denoising diffusion probabilistic models (DDPMs),…

In this research, we introduce an innovative method for synthesizing medical images using generative adversarial networks (GANs). Our proposed GANs method demonstrates the capability to produce realistic synthetic images even when trained…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Yinqiu Feng , Bo Zhang , Lingxi Xiao , Yutian Yang , Tana Gegen , Zexi Chen

Deep learning algorithms require extensive data to achieve robust performance. However, data availability is often restricted in the medical domain due to patient privacy concerns. Synthetic data presents a possible solution to these…

We present a method for inferring dense depth maps from images and sparse depth measurements by leveraging synthetic data to learn the association of sparse point clouds with dense natural shapes, and using the image as evidence to validate…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Alex Wong , Safa Cicek , Stefano Soatto

Photoacoustic computed tomography (PACT) is a hybrid imaging modality, which combines the high optical contrast of pure optical imaging and the high penetration depth of ultrasound imaging. However, photoacoustic image dataset with good…

Medical Physics · Physics 2022-05-24 Tengbo Lyu , Changchun Yang , Jiadong Zhang , Shanshan Guo , Feng Gao , Fei Gao

Deep neural networks have received considerable attention in clinical imaging, particularly with respect to the reduction of radiation risk. Lowering the radiation dose by reducing the photon flux inevitably results in the degradation of…

Image and Video Processing · Electrical Eng. & Systems 2021-09-14 Khalid L. Alsamadony , Ertugrul U. Yildirim , Guenther Glatz , Umair bin Waheed , Sherif M. Hanafy

This study leverages synthetic data as a validation set to reduce overfitting and ease the selection of the best model in AI development. While synthetic data have been used for augmenting the training set, we find that synthetic data can…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Qixin Hu , Alan Yuille , Zongwei Zhou

Recent advances in types and extent of medical imaging technologies has led to proliferation of multimodal quantitative imaging data in cancer. Quantitative medical imaging data refer to numerical representations derived from medical…

High-resolution volumetric computed tomography (CT) is essential for accurate diagnosis and treatment planning in thoracic diseases; however, it is limited by radiation dose and hardware costs. We present the Transformer Volumetric…

It is necessary for clinicians to comprehensively analyze patient information from different sources. Medical image fusion is a promising approach to providing overall information from medical images of different modalities. However,…

Image and Video Processing · Electrical Eng. & Systems 2019-12-12 Fanda Fan , Yunyou Huang , Lei Wang , Xingwang Xiong , Zihan Jiang , Zhifei Zhang , Jianfeng Zhan