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Point clouds have become an increasingly important representation for 3D medical imaging, offering a compact, surface-preserving alternative to traditional voxel or mesh-based approaches. Recent advances in deep learning have enabled rapid…

图像与视频处理 · 电气工程与系统科学 2026-02-04 Tongxu Zhang , Zhiming Liang , Bei Wang

Deep neural networks are prone to learning spurious correlations, exploiting dataset-specific artifacts rather than meaningful features for prediction. In surgical operating rooms (OR), these manifest through the standardization of smocks…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Tony Danjun Wang , Tobias Czempiel , Nassir Navab , Lennart Bastian

Local learning of sparse image models has proven to be very effective to solve inverse problems in many computer vision applications. To learn such models, the data samples are often clustered using the K-means algorithm with the Euclidean…

计算机视觉与模式识别 · 计算机科学 2016-04-20 Julio Cesar Ferreira , Elif Vural , Christine Guillemot

Medical image segmentation aims to identify anatomical structures at the voxel-level. Segmentation accuracy relies on distinguishing voxel differences. Compared to advancements achieved in studies of the inter-class variance, the…

图像与视频处理 · 电气工程与系统科学 2025-03-19 Yali Bi , Enyu Che , Yinan Chen , Yuanpeng He , Jingwei Qu

Three-dimensional (3D) reconstruction from two-dimensional images is an active research field in computer vision, with applications ranging from navigation and object tracking to segmentation and three-dimensional modeling. Traditionally,…

计算机视觉与模式识别 · 计算机科学 2024-09-17 Sierra Bonilla , Chiara Di Vece , Rema Daher , Xinwei Ju , Danail Stoyanov , Francisco Vasconcelos , Sophia Bano

Autonomous mobile robots like self-flying drones and industrial robots heavily depend on depth images to perform tasks such as 3D reconstruction and visual SLAM. However, the presence of inaccuracies in these depth images can greatly hinder…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yashashwee Chakrabarty , Smruti Ranjan Sarangi

Image segmentation plays a pivotal role in several medical-imaging applications by assisting the segmentation of the regions of interest. Deep learning-based approaches have been widely adopted for semantic segmentation of medical data. In…

图像与视频处理 · 电气工程与系统科学 2021-01-20 Abhishek Shivdeo , Rohit Lokwani , Viraj Kulkarni , Amit Kharat , Aniruddha Pant

Microsurgical anastomosis demands exceptional dexterity and visuospatial skills, underscoring the importance of comprehensive training and precise outcome assessment. Currently, methods such as the outcome-oriented anastomosis lapse index…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Luyin Hu , Soheil Gholami , George Dindelegan , Torstein R. Meling , Aude Billard

Automated optic disc (OD) and optic cup (OC) segmentation in fundus images is relevant to efficiently measure the vertical cup-to-disc ratio (vCDR), a biomarker commonly used in ophthalmology to determine the degree of glaucomatous optic…

Semantic segmentation metrics for 3D point clouds, such as mean Intersection over Union (mIoU) and Overall Accuracy (OA), present two key limitations in the context of aerial LiDAR data. First, they treat all misclassifications equally…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Alex Salvatierra , José Antonio Sanz , Christian Gutiérrez , Mikel Galar

3D generative modeling is accelerating as the technology allowing the capture of geometric data is developing. However, the acquired data is often inconsistent, resulting in unregistered meshes or point clouds. Many generative learning…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Thomas Besnier , Sylvain Arguillère , Emery Pierson , Mohamed Daoudi

How to extract significant point cloud features and estimate the pose between them remains a challenging question, due to the inherent lack of structure and ambiguous order permutation of point clouds. Despite significant improvements in…

计算机视觉与模式识别 · 计算机科学 2021-12-14 Zhu Xu , Zhengyao Bai , Huijie Liu , Qianjie Lu , Shenglan Fan

Pixel-aligned implicit models, such as PIFu, PIFuHD, and ICON, are used for single-view clothed human reconstruction. These models need to be trained using a sampling training scheme. Existing sampling training schemes either fail to…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Kennard Yanting Chan , Fayao Liu , Guosheng Lin , Chuan Sheng Foo , Weisi Lin

Geometric priors are often used to enhance 3D reconstruction. With many smartphones featuring low-resolution depth sensors and the prevalence of off-the-shelf monocular geometry estimators, incorporating geometric priors as regularization…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Xuqian Ren , Matias Turkulainen , Jiepeng Wang , Otto Seiskari , Iaroslav Melekhov , Juho Kannala , Esa Rahtu

In industrial defect segmentation tasks, while pixel accuracy and Intersection over Union (IoU) are commonly employed metrics to assess segmentation performance, the output consistency (also referred to equivalence) of the model is often…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Zhen Qu , Xian Tao , Fei Shen , Zhengtao Zhang , Tao Li

Deep learning-based object detection and instance segmentation have achieved unprecedented progress. In this paper, we propose Complete-IoU (CIoU) loss and Cluster-NMS for enhancing geometric factors in both bounding box regression and…

计算机视觉与模式识别 · 计算机科学 2021-07-06 Zhaohui Zheng , Ping Wang , Dongwei Ren , Wei Liu , Rongguang Ye , Qinghua Hu , Wangmeng Zuo

Recovering point clouds involves the sequential process of sampling and restoration, yet existing methods struggle to effectively leverage both topological and geometric attributes. To address this, we propose an end-to-end architecture…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Kaiyue Zhou , Zelong Tan , Hongxiao Wang , Ya-Li Li , Shengjin Wang

Geostatistical methods are powerful tools for understanding the spatial structure of the metallicity distribution of galaxies, and enable construction of accurate predictive models of the 2D metallicity distribution. However, so far these…

星系天体物理 · 物理学 2024-02-15 Benjamin Metha , Michele Trenti , Andrew Battisti , Tingjin Chu

For diagnosis of shoulder illness, it is essential to look at the morphology deviation of scapula and humerus from the medical images that are acquired from Magnetic Resonance (MR) imaging. However, taking high-resolution MR images is…

图像与视频处理 · 电气工程与系统科学 2022-03-16 Xiaoxiao He , Chaowei Tan , Virak Tan , Kang Li

We propose a novel method for non-rigid 3-D motion correction of orthogonally raster-scanned optical coherence tomography angiography volumes. This is the first approach that aligns predominantly axial structural features like retinal…