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Dents on the aircraft skin are frequent and may easily go undetected during airworthiness checks, as their inspection process is tedious and extremely subject to human factors and environmental conditions. Nowadays, 3D scanning technologies…

计算机视觉与模式识别 · 计算机科学 2023-02-27 Pasquale Lafiosca , Ip-Shing Fan , Nicolas P. Avdelidis

Purpose: Proximal femur image analyses based on quantitative computed tomography (QCT) provide a method to quantify the bone density and evaluate osteoporosis and risk of fracture. We aim to develop a deep-learning-based method for…

Automatic segmentation of hepatic lesions in computed tomography (CT) images is a challenging task to perform due to heterogeneous, diffusive shape of tumors and complex background. To address the problem more and more researchers rely on…

图像与视频处理 · 电气工程与系统科学 2019-09-18 Dina B. Efremova , Dmitry A. Konovalov , Thanongchai Siriapisith , Worapan Kusakunniran , Peter Haddawy

Low-dose dental cone beam computed tomography (CBCT) has been increasingly used for maxillofacial modeling. However, the presence of metallic inserts, such as implants, crowns, and dental filling, causes severe streaking and shading…

图像与视频处理 · 电气工程与系统科学 2022-02-09 Chang Min Hyun , Taigyntuya Bayaraa , Hye Sun Yun , Tae Jun Jang , Hyoung Suk Park , Jin Keun Seo

3D teeth reconstruction from X-ray is important for dental diagnosis and many clinical operations. However, no existing work has explored the reconstruction of teeth for a whole cavity from a single panoramic radiograph. Different from…

计算机视觉与模式识别 · 计算机科学 2021-08-31 Yuan Liang , Weinan Song , Jiawei Yang , Liang Qiu , Kun Wang , Lei He

We introduce SAM3D, a new approach to semi-automatic zero-shot segmentation of 3D images building on the existing Segment Anything Model. We achieve fast and accurate segmentations in 3D images with a four-step strategy involving: user…

图像与视频处理 · 电气工程与系统科学 2024-08-09 Trevor J. Chan , Aarush Sahni , Yijin Fang , Jie Li , Alisha Luthra , Alison Pouch , Chamith S. Rajapakse

The problem of segmenting a given image into coherent regions is important in Computer Vision and many industrial applications require segmenting a known object into its components. Examples include identifying individual parts of a…

计算机视觉与模式识别 · 计算机科学 2013-05-17 Srimal Jayawardena , Di Yang , Marcus Hutter

Automatic segmentation of objects from a single image is a challenging problem which generally requires training on large number of images. We consider the problem of automatically segmenting only the dynamic objects from a given pair of…

计算机视觉与模式识别 · 计算机科学 2016-04-19 Sri Raghu Malireddi , Shanmuganathan Raman

This paper presents a fully automatic and end-to-end optimised airway segmentation method for thoracic computed tomography, based on the U-Net architecture. We use a simple and low-memory 3D U-Net as backbone, which allows the method to…

图像与视频处理 · 电气工程与系统科学 2021-08-04 A. Garcia-Uceda , R. Selvan , Z. Saghir , H. A. W. M. Tiddens , M. de Bruijne

In this work it is proposed a medical image segmentation pipeline for accurate bone segmentation from CT imaging. It is a two-step methodology, with a pre-segmentation step and a segmentation refinement step. First, the user performs a…

医学物理 · 物理学 2015-05-13 Manuel Pinheiro , J. L. Alves

The localization of teeth and segmentation of periapical lesions in cone-beam computed tomography (CBCT) images are crucial tasks for clinical diagnosis and treatment planning, which are often time-consuming and require a high level of…

图像与视频处理 · 电气工程与系统科学 2023-12-20 Arnela Hadzic , Barbara Kirnbauer , Darko Stern , Martin Urschler

We present a method to address the challenging problem of segmentation of lumbar vertebrae from CT images acquired with varying fields of view. Our method is based on cascaded 3D Fully Convolutional Networks (FCNs) consisting of a…

计算机视觉与模式识别 · 计算机科学 2017-12-06 Rens Janssens , Guodong Zeng , Guoyan Zheng

3D teeth segmentation, involving the localization of tooth instances and their semantic categorization in 3D dental models, is a critical yet challenging task in digital dentistry due to the complexity of real-world dentition. In this…

计算机视觉与模式识别 · 计算机科学 2025-12-15 Zhiguo Lu , Jianwen Lou , Mingjun Ma , Hairong Jin , Youyi Zheng , Kun Zhou

Cone-beam computed tomography (CBCT) is a widely used 3D imaging technique in dentistry, offering high-resolution images while minimising radiation exposure for patients. However, CBCT is highly susceptible to artefacts arising from…

计算机视觉与模式识别 · 计算机科学 2026-03-09 Susanne Schaub , Florentin Bieder , Matheus L. Oliveira , Yulan Wang , Dorothea Dagassan-Berndt , Michael M. Bornstein , Philippe C. Cattin

Quantitative computed tomography (QCT) is a standard method to determine bone mineral density (BMD) in the spine. Traditionally single 8 - 10 mm thick slices have been analyzed only. Current spiral CT scanners provide true 3D acquisition…

计算机视觉与模式识别 · 计算机科学 2017-05-24 Andre Mastmeyer , Klaus Engelke , Christina Fuchs , Willi Kalender

In this paper, we propose a novel deep learning framework for anatomy segmentation and automatic landmark- ing. Specifically, we focus on the challenging problem of mandible segmentation from cone-beam computed tomography (CBCT) scans and…

计算机视觉与模式识别 · 计算机科学 2018-10-10 Neslisah Torosdagli , Denise K. Liberton , Payal Verma , Murat Sincan , Janice S. Lee , Ulas Bagci

Reconstructing the 3D anatomical structures of the oral cavity, which originally reside in the cone-beam CT (CBCT), from a single 2D Panoramic X-ray(PX) remains a critical yet challenging task, as it can effectively reduce radiation risks…

计算机视觉与模式识别 · 计算机科学 2024-11-07 Wen Ma , Huikai Wu , Zikai Xiao , Yang Feng , Jian Wu , Zuozhu Liu

We systematically evaluate a Deep Learning (DL) method in a 3D medical image segmentation task. Our segmentation method is integrated into the radiosurgery treatment process and directly impacts the clinical workflow. With our method, we…

High-fidelity 3D tooth models are essential for digital dentistry, but must capture both the detailed crown and the complete root. Clinical imaging modalities are limited: Cone-Beam Computed Tomography (CBCT) captures the root but has a…

图像与视频处理 · 电气工程与系统科学 2026-01-23 Yi Zhu , Razmig Kechichian , Raphaël Richert , Satoshi Ikehata , Sébastien Valette

Image segmentation is a fundamental and challenging problem in computer vision with applications spanning multiple areas, such as medical imaging, remote sensing, and autonomous vehicles. Recently, convolutional neural networks (CNNs) have…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Ali Hatamizadeh