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We present a microstructure imaging technique for estimating compartment-specific T2 and T2* simultaneously in the human brain. Microstructure imaging with diffusion MRI (dMRI) has enabled the modelling of intra-neurite and extra-neurite…

医学物理 · 物理学 2024-08-21 Ting Gong , Merlin J. Fair , Kawin Setsompop , Hui Zhang

Recent studies shows that the majority of existing deep steganalysis models have a large amount of redundancy, which leads to a huge waste of storage and computing resources. The existing model compression method cannot flexibly compress…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Shunquan Tan , Qiushi Li , Laiyuan Li , Bin Li , Jiwu Huang

Perfusion-weighted magnetic resonance imaging (MRI) is an imaging technique that allows one to measure tissue perfusion in an organ of interest through the injection of an intravascular paramagnetic contrast agent (CA). Due to a preference…

计算机视觉与模式识别 · 计算机科学 2017-08-28 Cagdas Ulas , Christine Preibisch , Jonathan Sperl , Thomas Pyka , Jayashree Kalpathy-Cramer , Bjoern Menze

Registration plays an important role in medical image analysis. Deep learning-based methods have been studied for medical image registration, which leverage convolutional neural networks (CNNs) for efficiently regressing a dense deformation…

计算机视觉与模式识别 · 计算机科学 2022-08-16 Xiaoru Gao , GuoYan Zheng

A method for perfusion imaging with DCE-MRI is developed based on two popular paradigms: the low-rank + sparse model for optimisation-based reconstruction, and the deep unfolding. A learnable algorithm derived from a proximal algorithm is…

信号处理 · 电气工程与系统科学 2024-10-28 Ondřej Mokrý , Jiří Vitouš , Pavel Rajmic , Radovan Jiřík

Transformer-based networks applied to image patches have achieved cutting-edge performance in many vision tasks. However, lacking the built-in bias of convolutional neural networks (CNN) for local image statistics, they require large…

图像与视频处理 · 电气工程与系统科学 2024-08-06 Erik Gösche , Reza Eghbali , Florian Knoll , Andreas M Rauschecker

Despite the rapid progress of neuromorphic computing, inadequate capacity and insufficient representation power of spiking neural networks (SNNs) severely restrict their application scope in practice. Residual learning and shortcuts have…

神经与进化计算 · 计算机科学 2023-03-13 Yifan Hu , Lei Deng , Yujie Wu , Man Yao , Guoqi Li

The recent integration of attention mechanisms into segmentation networks improves their representational capabilities through a great emphasis on more informative features. However, these attention mechanisms ignore an implicit sub-task of…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Zilong Zhong , Zhong Qiu Lin , Rene Bidart , Xiaodan Hu , Ibrahim Ben Daya , Zhifeng Li , Wei-Shi Zheng , Jonathan Li , Alexander Wong

Neuroanatomical segmentation in magnetic resonance imaging (MRI) of the brain is a prerequisite for volume, thickness and shape measurements. This work introduces a new highly accurate and versatile method based on 3D convolutional neural…

定量方法 · 定量生物学 2019-02-07 Philip Novosad , Vladimir Fonov , D. Louis Collins

Accurate automatic segmentation of brain anatomy from $T_1$-weighted~($T_1$-w) magnetic resonance images~(MRI) has been a computationally intensive bottleneck in neuroimaging pipelines, with state-of-the-art results obtained by unsupervised…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Amod Jog , Bruce Fischl

Aiming at the problems that the convolutional neural networks neglect to capture the inherent attributes of natural images and extract features only in a single scale in the field of image super-resolution reconstruction, a network…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Jiawen Lyn , Sen Yan

Head magnetic resonance imaging (MRI) data are routinely collected and shared for research under strict regulatory frameworks that require the removal of direct identifiers prior to data release. However, even after skull stripping, brain…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Gaurang Sharma , Harri Polonen , Juha Pajula , Jutta Suksi , Jussi Tohka

Diffusion models have demonstrated remarkable generative capabilities in image processing tasks. We propose a Sparse condition Temporal Rewighted Integrated Distribution Estimation guided diffusion model (STRIDE) for sparse-view CT…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Zekun Zhou , Yanru Gong , Liu Shi , Qiegen Liu

Text-to-image generation models, especially Multimodal Diffusion Transformers (MMDiT), have shown remarkable progress in generating high-quality images. However, these models often face significant computational bottlenecks, particularly in…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Hanling Zhang , Rundong Su , Zhihang Yuan , Pengtao Chen , Mingzhu Shen Yibo Fan , Shengen Yan , Guohao Dai , Yu Wang

Accelerated MRI reconstruction plays a vital role in reducing scan time while preserving image quality. While most existing methods rely on complex-valued image-space or k-space data, these formats are often inaccessible in clinical…

图像与视频处理 · 电气工程与系统科学 2025-04-29 Tao Song , Yicheng Wu , Minhao Hu , Xiangde Luo , Guoting Luo , Guotai Wang , Yi Guo , Feng Xu , Shaoting Zhang

Deep learning models have shown strong performance in classifying Alzheimer's disease (AD) from R2* maps, but their decision-making remains opaque, raising concerns about interpretability. Previous studies suggest biases in model decisions,…

图像与视频处理 · 电气工程与系统科学 2025-06-05 Christian Tinauer , Maximilian Sackl , Stefan Ropele , Christian Langkammer

In recent years, significant progress has been made in the medical image analysis domain using convolutional neural networks (CNNs). In particular, deep neural networks based on a U-shaped architecture (UNet) with skip connections have been…

图像与视频处理 · 电气工程与系统科学 2024-10-16 Vamsi Krishna Vasa , Wenhui Zhu , Xiwen Chen , Peijie Qiu , Xuanzhao Dong , Yalin Wang

Brain extraction in magnetic resonance imaging (MRI) data is an important segmentation step in many neuroimaging preprocessing pipelines. Image segmentation is one of the research fields in which deep learning had the biggest impact in…

图像与视频处理 · 电气工程与系统科学 2023-08-15 Lukas Fisch , Stefan Zumdick , Carlotta Barkhau , Daniel Emden , Jan Ernsting , Ramona Leenings , Kelvin Sarink , Nils R. Winter , Benjamin Risse , Udo Dannlowski , Tim Hahn

It has been proven that, compared to using 32-bit floating-point numbers in the training phase, Deep Convolutional Neural Networks (DCNNs) can operate with low precision during inference, thereby saving memory space and power consumption.…

人工智能 · 计算机科学 2022-10-03 Binyi Wu , Bernd Waschneck , Christian Georg Mayr

Spatial attention has been introduced to convolutional neural networks (CNNs) for improving both their performance and interpretability in visual tasks including image classification. The essence of the spatial attention is to learn a…

图像与视频处理 · 电气工程与系统科学 2020-08-03 Linchuan Xu , Jun Huang , Atsushi Nitanda , Ryo Asaoka , Kenji Yamanishi