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Nosie is an important cause of low quality Optical coherence tomography (OCT) image. The neural network model based on Convolutional neural networks(CNNs) has demonstrated its excellent performance in image denoising. However, OCT image…

图像与视频处理 · 电气工程与系统科学 2022-05-03 Jie Du , Xujian Yang , Kecheng Jin , Xuanzheng Qi , Hu Chen

Computed tomography (CT) provides highly detailed three-dimensional (3D) medical images but is costly, time-consuming, and often inaccessible in intraoperative settings (Organization et al. 2011). Recent advancements have explored…

图像与视频处理 · 电气工程与系统科学 2024-12-12 Zhaoxi Zhang , Yueliang Ying

A major challenge in applying deep learning to medical imaging is the paucity of annotated data. This study demonstrates that synthetic colonoscopy images generated by Generative Adversarial Network (GAN) inversion can be used as training…

图像与视频处理 · 电气工程与系统科学 2025-07-02 Mayank Golhar , Taylor L. Bobrow , Saowanee Ngamruengphong , Nicholas J. Durr

Unpaired image-to-image translation has broad applications in art, design, and scientific simulations. One early breakthrough was CycleGAN that emphasizes one-to-one mappings between two unpaired image domains via generative-adversarial…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Dmitrii Torbunov , Yi Huang , Haiwang Yu , Jin Huang , Shinjae Yoo , Meifeng Lin , Brett Viren , Yihui Ren

Phantoms for surgical training are able to mimic cutting and suturing properties and patient-individual shape of organs, but lack a realistic visual appearance that captures the heterogeneity of surgical scenes. In order to overcome this in…

图像与视频处理 · 电气工程与系统科学 2019-06-25 Sandy Engelhardt , Lalith Sharan , Matthias Karck , Raffaele De Simone , Ivo Wolf

Computed tomography (CT) has been developed as a non-destructive technique for observing minute internal images of samples. It has been difficult to obtain photo-realistic (clean or clear) CT images due to various unwanted artifacts…

量子物理 · 物理学 2023-09-12 Kyungtaek Jun

Histopathological cancer diagnosis is based on visual examination of stained tissue slides. Hematoxylin and eosin (H\&E) is a standard stain routinely employed worldwide. It is easy to acquire and cost effective, but cells and tissue…

计算机视觉与模式识别 · 计算机科学 2022-07-12 Zhaoyang Xu , Xingru Huang , Carlos Fernández Moro , Béla Bozóky , Qianni Zhang

Recent studies on unsupervised image-to-image translation have made a remarkable progress by training a pair of generative adversarial networks with a cycle-consistent loss. However, such unsupervised methods may generate inferior results…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Minjun Li , Haozhi Huang , Lin Ma , Wei Liu , Tong Zhang , Yu-Gang Jiang

Contrast-enhanced computed tomography angiograms (CTAs) are widely used in cardiovascular imaging to obtain a non-invasive view of arterial structures. However, contrast agents are associated with complications at the injection site as well…

图像与视频处理 · 电气工程与系统科学 2020-03-04 Anirudh Chandrashekar , Ashok Handa , Natesh Shivakumar , Pierfrancesco Lapolla , Vicente Grau , Regent Lee

Spectral computed tomography (CT) offers the possibility to reconstruct attenuation images at different energy levels, which can be then used for material decomposition. However, traditional methods reconstruct each energy bin individually…

Computed Tomography (CT) plays an essential role in clinical diagnosis. Due to the adverse effects of radiation on patients, the radiation dose is expected to be reduced as low as possible. Sparse sampling is an effective way, but it will…

图像与视频处理 · 电气工程与系统科学 2022-02-22 Chang Sun , Ken Deng , Yitong Liu , Hongwen Yang

Domain shift is one of the most salient challenges in medical computer vision. Due to immense variability in scanners' parameters and imaging protocols, even images obtained from the same person and the same scanner could differ…

图像与视频处理 · 电气工程与系统科学 2022-06-10 Talgat Saparov , Anvar Kurmukov , Boris Shirokikh , Mikhail Belyaev

Unpaired Image-to-Image translation aims to convert the image from one domain (input domain A) to another domain (target domain B), without providing paired examples for the training. The state-of-the-art, Cycle-GAN demonstrated the power…

计算机视觉与模式识别 · 计算机科学 2018-02-14 Mohan Nikam

Synthetic CT image generation from MRI scan is necessary to create radiotherapy plans without the need of co-registered MRI and CT scans. The chosen baseline adversarial model with cycle consistency permits unpaired image-to-image…

图像与视频处理 · 电气工程与系统科学 2023-08-16 Denis Prokopenko , Joël Valentin Stadelmann , Heinrich Schulz , Steffen Renisch , Dmitry V. Dylov

This paper proposes a deep learning-based denoising method for noisy low-dose computerized tomography (CT) images in the absence of paired training data. The proposed method uses a fidelity-embedded generative adversarial network (GAN) to…

计算机视觉与模式识别 · 计算机科学 2019-08-13 Hyoung Suk Park , Jineon Baek , Sun Kyoung You , Jae Kyu Choi , Jin Keun Seo

Generative adversarial networks (GANs) can synthesize high-quality (HQ) images, and GAN inversion is a technique that discovers how to invert given images back to latent space. While existing methods perform on StyleGAN inversion, they have…

计算机视觉与模式识别 · 计算机科学 2024-12-13 Cheng Yu , Wenmin Wang , Roberto Bugiolacchi

X-ray Computed Tomography (CT) is an important tool in medical imaging to obtain a direct visualization of patient anatomy. However, the x-ray radiation exposure leads to the concern of lifetime cancer risk. Low-dose CT scan can reduce the…

医学物理 · 物理学 2018-10-30 Guoyang Ma , Chenyang Shen , Xun Jia

The convolutional neural network (CNN) is one of the most commonly used architectures for computer vision tasks. The key building block of a CNN is the convolutional kernel that aggregates information from the pixel neighborhood and shares…

图像与视频处理 · 电气工程与系统科学 2022-02-08 Tianyu Ma , Alan Q. Wang , Adrian V. Dalca , Mert R. Sabuncu

Convolutional neural networks (CNNs) have achieved state-of-the-art results on many visual recognition tasks. However, current CNN models still exhibit a poor ability to be invariant to spatial transformations of images. Intuitively, with…

计算机视觉与模式识别 · 计算机科学 2019-12-04 Xu Shen , Xinmei Tian , Anfeng He , Shaoyan Sun , Dacheng Tao

Generative models enable the translation from a source image domain where readily trained models are available to a target domain unseen during training. While Cycle Generative Adversarial Networks (GANs) are well established, the…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Nicolas Brieu , Nicolas Triltsch , Philipp Wortmann , Dominik Winter , Shashank Saran , Marlon Rebelatto , Günter Schmidt