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Diffusion MRI (dMRI) tractography is currently the only method for in vivo mapping of the brain's white matter (WM) connections. Tractometry is an advanced tractography analysis technique for along-tract profiling to investigate the…

The ability to segment teeth precisely from digitized 3D dental models is an essential task in computer-aided orthodontic surgical planning. To date, deep learning based methods have been popularly used to handle this task. State-of-the-art…

计算机视觉与模式识别 · 计算机科学 2020-12-29 Lingming Zhang , Yue Zhao , Deyu Meng , Zhiming Cui , Chenqiang Gao , Xinbo Gao , Chunfeng Lian , Dinggang Shen

We propose a novel and efficient algorithm to model high-level topological structures of neuronal fibers. Tractography constructs complex neuronal fibers in three dimensions that exhibit the geometry of white matter pathways in the brain.…

计算机视觉与模式识别 · 计算机科学 2021-08-04 S. Shailja , Angela Zhang , B. S. Manjunath

Shape plays an important role in computer graphics, offering informative features to convey an object's morphology and functionality. Shape analysis in brain imaging can help interpret structural and functionality correlations of the human…

计算机视觉与模式识别 · 计算机科学 2025-04-23 Yui Lo , Yuqian Chen , Dongnan Liu , Wan Liu , Leo Zekelman , Fan Zhang , Yogesh Rathi , Nikos Makris , Alexandra J. Golby , Weidong Cai , Lauren J. O'Donnell

White matter structures composed of myelinated axons in the living human brain are primarily studied by diffusion-weighted MRI (dMRI). These long-range projections are typically characterized in a two-step process: dMRI is used to estimate…

Subtle changes in white matter (WM) microstructure have been associated with normal aging and neurodegeneration. To study these associations in more detail, it is highly important that the WM tracts can be accurately and reproducibly…

图像与视频处理 · 电气工程与系统科学 2020-05-27 Bo Li , Marius de Groot , Rebecca M. E. Steketee , Rozanna Meijboom , Marion Smits , Meike W. Vernooij , M. Arfan Ikram , Jiren Liu , Wiro J. Niessen , Esther E. Bron

White matter segmentation methods from diffusion magnetic resonance imaging range from streamline clustering-based approaches to bundle mask delineation, but none have proposed a pediatric-specific approach. We hypothesize that a deep…

Human motion prediction is an increasingly interesting topic in computer vision and robotics. In this paper, we propose a new 2D CNN based network, TrajectoryNet, to predict future poses in the trajectory space. Compared with most existing…

计算机视觉与模式识别 · 计算机科学 2020-03-23 Xiaoli Liu , Jianqin Yin , Jin Liu , Pengxiang Ding , Jun Liu , Huaping Liu

Fiber tractography is an important tool of computational neuroscience that enables reconstructing the spatial connectivity and organization of white matter of the brain. Fiber tractography takes advantage of diffusion Magnetic Resonance…

图像与视频处理 · 电气工程与系统科学 2020-09-08 Tomer Weiss , Sanketh Vedula , Ortal Senouf , Oleg Michailovich , AlexBronstein

Temporal sentence grounding (TSG) aims to localize the temporal segment which is semantically aligned with a natural language query in an untrimmed video.Most existing methods extract frame-grained features or object-grained features by 3D…

计算机视觉与模式识别 · 计算机科学 2023-02-22 Zeyu Xiong , Daizong Liu , Pan Zhou , Jiahao Zhu

We present two novel generative geometric deep learning frameworks, termed Flow Matching PointNet and Diffusion PointNet, for predicting fluid flow variables on irregular geometries by incorporating PointNet into flow matching and diffusion…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Ali Kashefi

Materials discovery is crucial for making scientific advances in many domains. Collections of data from experiments and first-principle computations have spurred interest in applying machine learning methods to create predictive models…

Current brain white matter fiber tracking techniques show a number of problems, including: generating large proportions of streamlines that do not accurately describe the underlying anatomy; extracting streamlines that are not supported by…

图像与视频处理 · 电气工程与系统科学 2021-08-03 Jon Haitz Legarreta , Laurent Petit , François Rheault , Guillaume Theaud , Carl Lemaire , Maxime Descoteaux , Pierre-Marc Jodoin

Deep learning approaches to 3D shape segmentation are typically formulated as a multi-class labeling problem. Existing models are trained for a fixed set of labels, which greatly limits their flexibility and adaptivity. We opt for top-down…

计算机视觉与模式识别 · 计算机科学 2022-01-19 Fenggen Yu , Kun Liu , Yan Zhang , Chenyang Zhu , Kai Xu

Recently, graph-based and Transformer-based deep learning networks have demonstrated excellent performances on various point cloud tasks. Most of the existing graph methods are based on static graph, which take a fixed input to establish…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Wei Zhou , Qian Wang , Weiwei Jin , Xinzhe Shi , Ying He

We introduce, TextureNet, a neural network architecture designed to extract features from high-resolution signals associated with 3D surface meshes (e.g., color texture maps). The key idea is to utilize a 4-rotational symmetric (4-RoSy)…

计算机视觉与模式识别 · 计算机科学 2019-03-29 Jingwei Huang , Haotian Zhang , Li Yi , Thomas Funkhouser , Matthias Nießner , Leonidas Guibas

We propose a lesion-aware graph neural network (LEGNet) to predict language ability from resting-state fMRI (rs-fMRI) connectivity in patients with post-stroke aphasia. Our model integrates three components: an edge-based learning module…

Diffusion MRI tractography is an advanced imaging technique for quantitative mapping of the brain's structural connectivity. Whole brain tractography (WBT) data contains over hundreds of thousands of individual fiber streamlines (estimated…

图像与视频处理 · 电气工程与系统科学 2022-07-12 Fan Zhang , Tengfei Xue , Weidong Cai , Yogesh Rathi , Carl-Fredrik Westin , Lauren J O'Donnell

Neurons in the brain are organized such that nearby cells tend to share similar functions. AI models lack this organization, and past efforts to introduce topography have often led to trade-offs between topography and task performance. In…

机器学习 · 计算机科学 2025-01-29 Mayukh Deb , Mainak Deb , N. Apurva Ratan Murty

The fundamental frequency (F0) contour of speech is a key aspect to represent speech prosody that finds use in speech and spoken language analysis such as voice conversion and speech synthesis as well as speaker and language identification.…

音频与语音处理 · 电气工程与系统科学 2018-05-09 Akihiro Kato , Tomi Kinnunen