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In this work, we focus on the efficiency and scalability of pairwise constraint-based active clustering, crucial for processing large-scale data in applications such as data mining, knowledge annotation, and AI model pre-training. Our goals…

Machine Learning · Computer Science 2025-09-11 Wen-Bo Xie , Xun Fu , Bin Chen , Yan-Li Lee , Tao Deng , Tian Zou , Xin Wang , Zhen Liu , Jaideep Srivastavad

Intraoperative Cone Beam Computed Tomography (CBCT) provides a reliable 3D anatomical context essential for interventional planning. However, its static nature fails to provide continuous monitoring of soft-tissue deformations induced by…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Feng Li , Ziyuan Li , Zhongliang Jiang , Nassir Navab , Yuan Bi

This work describes a novel methodology for automatic contour extraction from 2D images of 3D neurons (e.g. camera lucida images and other types of 2D microscopy). Most contour-based shape analysis methods can not be used to characterize…

Computer Vision and Pattern Recognition · Computer Science 2008-10-24 J. J. G. Leandro , R. M. Cesar , L. da F. Costa

Autonomous exploration in unknown environments is key for mobile robots, helping them perceive, map, and make decisions in complex areas. However, current methods often rely on frequent global optimization, suffering from high computational…

Robotics · Computer Science 2026-02-27 Kai Li , Shengtao Zheng , Linkun Xiu , Yuze Sheng , Xiao-Ping Zhang , Dongyue Huang , Xinlei Chen

As in other areas of medical image analysis, e.g. semantic segmentation, deep learning is currently driving the development of new approaches for image registration. Multi-scale encoder-decoder network architectures achieve state-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2021-03-02 Lasse Hansen , Mattias P. Heinrich

The objective of this study is the segmentation of the intima-media complex of the common carotid artery, on longitudinal ultrasound images, to measure its thickness. We propose a fully automatic region-based segmentation method, involving…

Image and Video Processing · Electrical Eng. & Systems 2022-01-31 Nolann Lainé , Guillaume Zahnd , Herv é Liebgott , Maciej Orkisz

During neurosurgery, medical images of the brain are used to locate tumors and critical structures, but brain tissue shifts make pre-operative images unreliable for accurate removal of tumors. Intra-operative imaging can track these…

In healthcare, accurately classifying medical images is vital, but conventional methods often hinge on medical data with a consistent grid structure, which may restrict their overall performance. Recent medical research has been focused on…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Kishore Babu Nampalle , Pradeep Singh , Vivek Narayan Uppala , Sumit Gangwar , Rajesh Singh Negi , Balasubramanian Raman

Craniofacial anomalies indicate early developmental disturbances and are usually linked to many genetic syndromes. Early diagnosis is critical, yet ultrasound (US) examinations often fail to identify these features. This study presents an…

Image and Video Processing · Electrical Eng. & Systems 2024-09-05 Antonia Alomar , Ricardo Rubio , Laura Salort , Gerard Albaiges , Antoni Payà , Gemma Piella , Federico Sukno

This paper focuses on the statistical analysis of shapes of data objects called shape graphs, a set of nodes connected by articulated curves with arbitrary shapes. A critical need here is a constrained registration of points (nodes to…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Shenyuan Liang , Mauricio Pamplona Segundo , Sathyanarayanan N. Aakur , Sudeep Sarkar , Anuj Srivastava

Understanding medical ultrasound imaging remains a long-standing challenge due to significant visual variability caused by differences in imaging and acquisition parameters. Recent advancements in large language models (LLMs) have been used…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Xuesong Li , Dianye Huang , Yameng Zhang , Nassir Navab , Zhongliang Jiang

Transcranial ultrasound must overcome the significant challenge of the human skull, limiting both imaging and therapeutic applications. While high-fidelity numerical simulations can compensate for skull-induced distortions, they require…

Medical image segmentation driven by free-text clinical instructions is a critical frontier in computer-aided diagnosis. However, existing multimodal and foundation models struggle with the semantic ambiguity of clinical reports and fail to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Chenyu Xue , Yiran Liu , Mian Zhou , Jionglong Su , Zhixiang Lu

Ultrasound is well-established as an imaging modality for diagnostic and interventional purposes. However, the image quality varies with operator skills as acquiring and interpreting ultrasound images requires extensive training due to the…

Conventional computer-assisted orthopaedic navigation systems rely on the tracking of dedicated optical markers for patient poses, which makes the surgical workflow more invasive, tedious, and expensive. Visual tracking has recently been…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Xue Hu , Anh Nguyen , Ferdinando Rodriguez y Baena

Automatic segmentation of anatomical landmarks from ultrasound (US) plays an important role in the management of preterm neonates with a very low birth weight due to the increased risk of developing intraventricular hemorrhage (IVH) or…

Image and Video Processing · Electrical Eng. & Systems 2019-12-19 Jeya Maria Jose V. , Rajeev Yasarla , Puyang Wang , Ilker Hacihaliloglu , Vishal M. Patel

Automatic body part recognition for CT slices can benefit various medical image applications. Recent deep learning methods demonstrate promising performance, with the requirement of large amounts of labeled images for training. The…

Computer Vision and Pattern Recognition · Computer Science 2018-03-08 Ke Yan , Le Lu , Ronald M. Summers

Clinical fusion of Single Photon Emission Computed Tomography Myocardial Perfusion Imaging (SPECT MPI) and Computed Tomography Angiography (CTA) remains limited by cross-modality misregistration and reliance on manual landmarks, which can…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Ni Yao , Xiangyu Liu , Shaojie Tang , Danyang Sun , Chuang Han , Yanting Li , Jiaofen Nan , Chengyang Li , Fubao Zhu , Chen Zhao , Zhihui Xu , Weihua Zhou

Point cloud registration, a fundamental task in 3D computer vision, has remained largely unexplored in cross-source point clouds and unstructured scenes. The primary challenges arise from noise, outliers, and variations in scale and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Kezheng Xiong , Maoji Zheng , Qingshan Xu , Chenglu Wen , Siqi Shen , Cheng Wang

Computed tomography (CT) is a widely used imaging modality for medical diagnosis and treatment. In electroencephalography (EEG), CT imaging is necessary for co-registering with magnetic resonance imaging (MRI) and for creating more accurate…

Medical Physics · Physics 2019-06-12 Andreas D. Lauritzen , Xenophon Papademetris , Sergei Turovets , John A. Onofrey