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Volumetric reconstruction of fetal brains from multiple stacks of MR slices, acquired in the presence of almost unpredictable and often severe subject motion, is a challenging task that is highly sensitive to the initialization of…

图像与视频处理 · 电气工程与系统科学 2022-06-23 Junshen Xu , Daniel Moyer , P. Ellen Grant , Polina Golland , Juan Eugenio Iglesias , Elfar Adalsteinsson

The objective of this work is to segment any arbitrary structures of interest (SOI) in 3D volumes by only annotating a single slice, (i.e. semi-automatic 3D segmentation). We show that high accuracy can be achieved by simply propagating the…

计算机视觉与模式识别 · 计算机科学 2021-07-12 Pak-Hei Yeung , Ana I. L. Namburete , Weidi Xie

Functional Magnetic Resonance Imaging (fMRI) is vital in neuroscience, enabling investigations into brain disorders, treatment monitoring, and brain function mapping. However, head motion during fMRI scans, occurring between shots of slice…

计算机视觉与模式识别 · 计算机科学 2024-04-09 Samah Khawaled , Simon K. Warfield , Moti Freiman

Recent advances in deep learning-based medical image segmentation studies achieve nearly human-level performance in fully supervised manner. However, acquiring pixel-level expert annotations is extremely expensive and laborious in medical…

计算机视觉与模式识别 · 计算机科学 2023-05-19 Hyungseob Shin , Hyeongyu Kim , Sewon Kim , Yohan Jun , Taejoon Eo , Dosik Hwang

2D to 3D registration is essential in tasks such as diagnosis, surgical navigation, environmental understanding, navigation in robotics, autonomous systems, or augmented reality. In medical imaging, the aim is often to place a 2D image in a…

计算机视觉与模式识别 · 计算机科学 2024-10-25 Stefan Brandstätter , Philipp Seeböck , Christoph Fürböck , Svitlana Pochepnia , Helmut Prosch , Georg Langs

Instance segmentation is a problem of significance in computer vision. However, preparing annotated data for this task is extremely time-consuming and costly. By combining the advantages of 3D scanning, reasoning, and GAN-based domain…

计算机视觉与模式识别 · 计算机科学 2018-07-16 Wenqiang Xu , Yonglu Li , Cewu Lu

We present a lightweight annotation tool, the Data AnnotatoR Tool (DART), for the general task of labeling structured data with textual descriptions. The tool is implemented as an interactive application that reduces human efforts in…

计算与语言 · 计算机科学 2020-12-02 Ernie Chang , Jeriah Caplinger , Alex Marin , Xiaoyu Shen , Vera Demberg

Accurate segmentation of organelle instances, e.g., mitochondria, is essential for electron microscopy analysis. Despite the outstanding performance of fully supervised methods, they highly rely on sufficient per-pixel annotated data and…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Dafei Qiu , Jiajin Yi , Jialin Peng

In magnetic resonance imaging (MRI), slice-to-volume reconstruction (SVR) refers to computational reconstruction of an unknown 3D magnetic resonance volume from stacks of 2D slices corrupted by motion. While promising, current SVR methods…

图像与视频处理 · 电气工程与系统科学 2024-02-29 Sean I. Young , Yaël Balbastre , Bruce Fischl , Polina Golland , Juan Eugenio Iglesias

Recent years have witnessed the rapid progress of perception algorithms on top of LiDAR, a widely adopted sensor for autonomous driving systems. These LiDAR-based solutions are typically data hungry, requiring a large amount of data to be…

机器人学 · 计算机科学 2020-11-23 Tai Wang , Conghui He , Zhe Wang , Jianping Shi , Dahua Lin

Deep learning models have exhibited remarkable efficacy in accurately delineating the prostate for diagnosis and treatment of prostate diseases, but challenges persist in achieving robust generalization across different medical centers.…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Zihao Luo , Xiangde Luo , Zijun Gao , Guotai Wang

Fusing intra-operative 2D transrectal ultrasound (TRUS) image with pre-operative 3D magnetic resonance (MR) volume to guide prostate biopsy can significantly increase the yield. However, such a multimodal 2D/3D registration problem is a…

图像与视频处理 · 电气工程与系统科学 2021-07-15 Hengtao Guo , Xuanang Xu , Sheng Xu , Bradford J. Wood , Pingkun Yan

Note-level Automatic Singing Voice Transcription (AST) converts singing recordings into note sequences, facilitating the automatic annotation of singing datasets for Singing Voice Synthesis (SVS) applications. Current AST methods, however,…

音频与语音处理 · 电气工程与系统科学 2024-06-04 Ruiqi Li , Yu Zhang , Yongqi Wang , Zhiqing Hong , Rongjie Huang , Zhou Zhao

Reliable machine-learning models in biomedical settings depend on accurate labels, yet annotating biomedical time-series data remains challenging. Algorithmic sample selection may support annotation, but evidence from studies involving real…

机器学习 · 计算机科学 2026-03-30 Einari Vaaras , Manu Airaksinen , Okko Räsänen

Fully convolutional networks have become the backbone of modern medical imaging due to their ability to learn multi-scale representations and perform end-to-end inference. Yet their potential for slice-to-volume reconstruction (SVR), the…

图像与视频处理 · 电气工程与系统科学 2026-01-13 Margherita Firenze , Sean I. Young , Clinton J. Wang , Hyuk Jin Yun , Elfar Adalsteinsson , Kiho Im , P. Ellen Grant , Polina Golland

Due to its robust and precise distance measurements, LiDAR plays an important role in scene understanding for autonomous driving. Training deep neural networks (DNNs) on LiDAR data requires large-scale point-wise annotations, which are…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Sicheng Zhao , Yezhen Wang , Bo Li , Bichen Wu , Yang Gao , Pengfei Xu , Trevor Darrell , Kurt Keutzer

The state-of-the-art (SoTA) surface normal estimators (SNEs) generally translate depth images into surface normal maps in an end-to-end fashion. Although such SNEs have greatly minimized the trade-off between efficiency and accuracy, their…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Nan Ming , Yi Feng , Rui Fan

In in-utero MRI, motion correction for fetal body and placenta poses a particular challenge due to the presence of local non-rigid transformations of organs caused by bending and stretching. The existing slice-to-volume registration (SVR)…

Unsupervised domain adaptation (UDA) aims to adapt a model trained on the source domain (e.g. synthetic data) to the target domain (e.g. real-world data) without requiring further annotations on the target domain. This work focuses on UDA…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Lukas Hoyer , Dengxin Dai , Luc Van Gool

Unstructured documents dominate enterprise and web data, but their lack of explicit organization hinders precise information retrieval. Current mainstream retrieval methods, especially embedding-based vector search, rely on coarse-grained…

信息检索 · 计算机科学 2026-04-06 Teng Lin , Yuyu Luo , Nan Tang
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