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Resting-state functional MRI (rs-fMRI) scans hold the potential to serve as a diagnostic or prognostic tool for a wide variety of conditions, such as autism, Alzheimer's disease, and stroke. While a growing number of studies have…

计算机视觉与模式识别 · 计算机科学 2018-06-14 Meenakshi Khosla , Keith Jamison , Amy Kuceyeski , Mert Sabuncu

Magnetic resonance imaging (MRI) provides high spatial resolution and excellent soft-tissue contrast without using harmful ionising radiation. Dynamic MRI is an essential tool for interventions to visualise movements or changes of the…

In this paper, we propose a convolutional neural network with mapping layers (MCNN) for hyperspectral image (HSI) classification. The proposed mapping layers map the input patch into a low dimensional subspace by multilinear algebra. We use…

图像与视频处理 · 电气工程与系统科学 2019-08-27 Rui Li , Zhibin Pan , Yang Wang , Ping Wang

We evaluate a new approach for achieving diffusion MRI data with high spatial resolution, large volume coverage, and fast acquisition speed. A recent method called gSlider-SMS enables whole-brain sub-millimeter diffusion MRI with high…

图像与视频处理 · 电气工程与系统科学 2019-08-19 Justin P. Haldar , Qiuyun Fan , Kawin Setsompop

Large scale image super-resolution is a challenging computer vision task, since vast information is missing in a highly degraded image, say for example forscale x16 super-resolution. Diffusion models are used successfully in recent years in…

图像与视频处理 · 电气工程与系统科学 2023-12-22 Chun-Chuen Hui , Wan-Chi Siu , Ngai-Fong Law

The recent advances in deep learning indicate significant progress in the field of single image super-resolution. With the advent of these techniques, high-resolution image with high peak signal to noise ratio (PSNR) and excellent…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Meenu Ajith , Aswathy Rajendra Kurup , Manel Martínez-Ramón

We present a super-resolution model for an advection-diffusion process with limited information. While most of the super-resolution models assume high-resolution (HR) ground-truth data in the training, in many cases such HR dataset is not…

机器学习 · 计算机科学 2023-06-26 Chulin Wang , Kyongmin Yeo , Xiao Jin , Andres Codas , Levente J. Klein , Bruce Elmegreen

Diffusion MRI (dMRI) is an advanced imaging technique characterizing tissue microstructure and white matter structural connectivity of the human brain. The demand for high-quality dMRI data is growing, driven by the need for better…

图像与视频处理 · 电气工程与系统科学 2024-08-26 Xi Zhu , Wei Zhang , Yijie Li , Lauren J. O'Donnell , Fan Zhang

Vasculature is known to be of key biological significance, especially in the study of cancer. As such, considerable effort has been focused on the automated measurement and analysis of vasculature in medical and pre-clinical images. In…

计算机视觉与模式识别 · 计算机科学 2017-05-29 Russell Bates , Benjamin Irving , Bostjan Markelc , Jakob Kaeppler , Ruth Muschel , Vicente Grau , Julia A. Schnabel

Deep learning-based super-resolution (SR) techniques have generally achieved excellent performance in the computer vision field. Recently, it has been proven that three-dimensional (3D) SR for medical volumetric data delivers better visual…

图像与视频处理 · 电气工程与系统科学 2021-05-19 Yinhao Li , Yutaro Iwamoto , Lanfen Lin , Rui Xu , Yen-Wei Chen

In surveillance, accurately recognizing license plates is hindered by their often low quality and small dimensions, compromising recognition precision. Despite advancements in AI-based image super-resolution, methods like Convolutional…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Sawsan AlHalawani , Bilel Benjdira , Adel Ammar , Anis Koubaa , Anas M. Ali

Recent medical image reconstruction techniques focus on generating high-quality medical images suitable for clinical use at the lowest possible cost and with the fewest possible adverse effects on patients. Recent works have shown…

图像与视频处理 · 电气工程与系统科学 2025-01-07 Shijun Liang , Anish Lahiri , Saiprasad Ravishankar

Deep learning has shown astonishing performance in accelerated magnetic resonance imaging (MRI). Most state-of-the-art deep learning reconstructions adopt the powerful convolutional neural network and perform 2D convolution since many…

图像与视频处理 · 电气工程与系统科学 2021-12-10 Zi Wang , Chen Qian , Di Guo , Hongwei Sun , Rushuai Li , Bo Zhao , Xiaobo Qu

Transformers have emerged as viable alternatives to convolutional neural networks owing to their ability to learn non-local region relationships in the spatial domain. The self-attention mechanism of the transformer enables transformers to…

图像与视频处理 · 电气工程与系统科学 2023-08-09 Rahul G. S. , Sriprabha Ramnarayanan , Mohammad Al Fahim , Keerthi Ram , Preejith S. P , Mohanasankar Sivaprakasam

Adapting the Diffusion Probabilistic Model (DPM) for direct image super-resolution is wasteful, given that a simple Convolutional Neural Network (CNN) can recover the main low-frequency content. Therefore, we present ResDiff, a novel…

计算机视觉与模式识别 · 计算机科学 2024-02-05 Shuyao Shang , Zhengyang Shan , Guangxing Liu , LunQian Wang , XingHua Wang , Zekai Zhang , Jinglin Zhang

High spatio-angular resolution diffusion MRI (dMRI) has been shown to provide accurate identification of complex neuronal fiber configurations, albeit, at the cost of long acquisition times. We propose a method to recover intra-voxel fiber…

图像与视频处理 · 电气工程与系统科学 2021-12-07 Marica Pesce , Audrey Repetti , Anna Auría , Alessandro Daducci , Jean-Philippe Thiran , Yves Wiaux

Video super-resolution (VSR) is the task of restoring high-resolution frames from a sequence of low-resolution inputs. Different from single image super-resolution, VSR can utilize frames' temporal information to reconstruct results with…

图像与视频处理 · 电气工程与系统科学 2022-08-25 Wenyi Lian , Wenjing Lian

Anisotropic low-resolution (LR) magnetic resonance (MR) images are fast to obtain but hinder automated processing. We propose to use denoising diffusion probabilistic models (DDPMs) to super-resolve these 2D-acquired LR MR slices. This…

图像与视频处理 · 电气工程与系统科学 2023-12-08 Zejun Wu , Samuel W. Remedios , Blake E. Dewey , Aaron Carass , Jerry L. Prince

Neural volumetric representations have become a widely adopted model for radiance fields in 3D scenes. These representations are fully implicit or hybrid function approximators of the instantaneous volumetric radiance in a scene, which are…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Yuval Bahat , Yuxuan Zhang , Hendrik Sommerhoff , Andreas Kolb , Felix Heide

Diffusion magnetic resonance imaging datasets suffer from low Signal-to-Noise Ratio, especially at high b-values. Acquiring data at high b-values contains relevant information and is now of great interest for microstructural and…

计算机视觉与模式识别 · 计算机科学 2016-06-27 Samuel St-Jean , Pierrick Coupé , Maxime Descoteaux