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Deep neural networks (DNNs) are nowadays witnessing a major success in solving many pattern recognition tasks including skeleton-based classification. The deployment of DNNs on edge-devices, endowed with limited time and memory resources,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Hichem Sahbi

Neuronal cell bodies mostly reside in the cerebral cortex. The study of this thin and highly convoluted surface is essential for understanding how the brain works. The analysis of surface data is, however, challenging due to the high…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Karthik Gopinath , Christian Desrosiers , Herve Lombaert

As the largest human cerebellar nucleus, the dentate nucleus (DN) functions significantly in the communication between the cerebellum and the rest of the brain. Structural connectivity-based parcellation has the potential to reveal the…

Image and Video Processing · Electrical Eng. & Systems 2023-01-23 Xiao Xu , Yuqian Chen , Leo Zekelman , Yogesh Rathi , Nikos Makris , Fan Zhang , Lauren J. O'Donnell

Diffusion MRI tractography technique enables non-invasive visualization of the white matter pathways in the brain. It plays a crucial role in neuroscience and clinical fields by facilitating the study of brain connectivity and neurological…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Yiqiong Yang , Yitian Yuan , Baoxing Ren , Ye Wu , Yanqiu Feng , Xinyuan Zhang

The amygdala plays a vital role in emotional processing and exhibits structural diversity that necessitates fine-scale parcellation for a comprehensive understanding of its anatomico-functional correlations. Diffusion MRI tractography is an…

Image and Video Processing · Electrical Eng. & Systems 2023-11-28 Haolin He , Ce Zhu , Le Zhang , Yipeng Liu , Xiao Xu , Yuqian Chen , Leo Zekelman , Jarrett Rushmore , Yogesh Rathi , Nikos Makris , Lauren J. O'Donnell , Fan Zhang

Convolutional neural networks (CNNs) are usually used as a backbone to design methods in biomedical image segmentation. However, the limitation of receptive field and large number of parameters limit the performance of these methods. In…

Image and Video Processing · Electrical Eng. & Systems 2022-09-27 Chong Wu , Zhenan Feng , Houwang Zhang , Hong Yan

Graph neural networks (GNNs) are a popular class of machine learning models whose major advantage is their ability to incorporate a sparse and discrete dependency structure between data points. Unfortunately, GNNs can only be used when such…

Machine Learning · Computer Science 2020-06-22 Luca Franceschi , Mathias Niepert , Massimiliano Pontil , Xiao He

Accurate brain parcellation in diffusion MRI (dMRI) space is essential for advanced neuroimaging analyses. However, most existing approaches rely on anatomical MRI for segmentation and inter-modality registration, a process that can…

Image and Video Processing · Electrical Eng. & Systems 2025-08-12 Yousef Sadegheih , Dorit Merhof

White matter bundle segmentation is a cornerstone of modern tractography to study the brain's structural connectivity in domains such as neurological disorders, neurosurgery, and aging. In this study, we present FIESTA (FIbEr Segmentation…

Superficial white matter (SWM) has been less studied than long-range connections despite being of interest to clinical research, andfew tractography parcellation methods have been adapted to SWM. Here, we propose an efficient geometry-based…

Image and Video Processing · Electrical Eng. & Systems 2023-03-03 Nabil Vindas , Nicole Labra Avila , Fan Zhang , Tengfei Xue , Lauren J. O'Donnell , Jean-François Mangin

Segmenting deep brain structures from magnetic resonance images is important for patient diagnosis, surgical planning, and research. Most current state-of-the-art solutions follow a segmentation-by-registration approach, where subject MRIs…

Image and Video Processing · Electrical Eng. & Systems 2022-05-20 Mehri Baniasadi , Mikkel V. Petersen , Jorge Goncalves , Andreas Horn , Vanja Vlasov , Frank Hertel , Andreas Husch

Tractography traces the peak directions extracted from fiber orientation distribution (FOD) suffering from ambiguous spatial correspondences between diffusion directions and fiber geometry, which is prone to producing erroneous tracks while…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Yuanjing Feng , Lei Xie , Jingqiang Wang , Qiyuan Tian , Jianzhong He , Qingrun Zeng , Fei Gao

We present Spline-based Convolutional Neural Networks (SplineCNNs), a variant of deep neural networks for irregular structured and geometric input, e.g., graphs or meshes. Our main contribution is a novel convolution operator based on…

Computer Vision and Pattern Recognition · Computer Science 2018-05-24 Matthias Fey , Jan Eric Lenssen , Frank Weichert , Heinrich Müller

Object segmentation and structure localization are important steps in automated image analysis pipelines for microscopy images. We present a convolution neural network (CNN) based deep learning architecture for segmentation of objects in…

Computer Vision and Pattern Recognition · Computer Science 2019-01-24 Shan E Ahmed Raza , Linda Cheung , Muhammad Shaban , Simon Graham , David Epstein , Stella Pelengaris , Michael Khan , Nasir M. Rajpoot

Semantic image segmentation is one of the most important tasks in medical image analysis. Most state-of-the-art deep learning methods require a large number of accurately annotated examples for model training. However, accurate annotation…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Ning Zhang , Susan Francis , Rayaz Malik , Xin Chen

Whole-brain parcellation from MRI is a critical yet challenging task due to the complexity of subdividing the brain into numerous small, irregular shaped regions. Traditionally, template-registration methods were used, but recent advances…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Yucheng Li , Xiaofan Wang , Junyi Wang , Yijie Li , Xi Zhu , Mubai Du , Dian Sheng , Wei Zhang , Fan Zhang

Tractograms are virtual representations of the white matter fibers of the brain. They are of primary interest for tasks like presurgical planning, and investigation of neuroplasticity or brain disorders. Each tractogram is composed of…

Neurons and Cognition · Quantitative Biology 2020-07-10 Pietro Astolfi , Ruben Verhagen , Laurent Petit , Emanuele Olivetti , Jonathan Masci , Davide Boscaini , Paolo Avesani

Accurate localization of proteins from fluorescence microscopy images is challenging due to the inter-class similarities and intra-class disparities introducing grave concerns in addressing multi-class classification problems. Conventional…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Muhammad Tahir , Saeed Anwar , Ajmal Mian , Abdul Wahab Muzaffar

We take an image science perspective on the problem of determining brain network connectivity given functional activity. But adapting the concept of image resolution to this problem, we provide a new perspective on network partitioning for…

Neurons and Cognition · Quantitative Biology 2020-02-14 Keith Dillon , Yu-Ping Wang

Medical images used in clinical practice are heterogeneous and not the same quality as scans studied in academic research. Preprocessing breaks down in extreme cases when anatomy, artifacts, or imaging parameters are unusual or protocols…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Mostafa Mehdipour Ghazi , Mads Nielsen