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3D facial landmark localization has proven to be of particular use for applications, such as face tracking, 3D face modeling, and image-based 3D face reconstruction. In the supervised learning case, such methods usually rely on 3D landmark…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 David Ferman , Pablo Garrido , Gaurav Bharaj

Orthodontics focuses on rectifying misaligned teeth (i.e., malocclusions), affecting both masticatory function and aesthetics. However, orthodontic treatment often involves complex, lengthy procedures. As such, generating a 2D photograph…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Yulong Dou , Lanzhuju Mei , Dinggang Shen , Zhiming Cui

One usage of medical ultrasound imaging is to visualize and characterize human tongue shape and motion during a real-time speech to study healthy or impaired speech production. Due to the low-contrast characteristic and noisy nature of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 M. Hamed Mozaffari , Won-Sook Lee

3D tooth segmentation is an important task for digital orthodontics. Several Deep Learning methods have been proposed for automatic tooth segmentation from 3D dental models or intraoral scans. These methods require annotated 3D intraoral…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Ananya Jana , Hrebesh Molly Subhash , Dimitris Metaxas

Accurate identification, localization, and segregation of teeth from Cone Beam Computed Tomography (CBCT) images are essential for analyzing dental pathologies. Modeling an individual tooth can be challenging and intricate to accomplish,…

Statistical shape analysis is a very useful tool in a wide range of medical and biological applications. However, it typically relies on the ability to produce a relatively small number of features that can capture the relevant variability…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Riddhish Bhalodia , Ladislav Kavan , Ross Whitaker

Intraoral scans are widely used in digital dentistry for tasks such as dental restoration, treatment planning, and orthodontic procedures. These scans contain detailed topological information, but manual annotation of these scans remains a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Daron Weekley , Jace Duckworth , Anastasiia Sukhanova , Ananya Jana

Importance: Machine learning (ML) approaches to facial landmark localization carry great clinical potential for quantitative assessment of facial function as they enable high-throughput automated quantification of relevant facial metrics…

Computer Vision and Pattern Recognition · Computer Science 2020-03-19 Diego L. Guarin , Yana Yunusova , Babak Taati , Joseph R Dusseldorp , Suresh Mohan , Joana Tavares , Martinus M. van Veen , Emily Fortier , Tessa A. Hadlock , Nate Jowett

Automatic tooth instance segmentation on 3D dental models is a fundamental task for computer-aided orthodontic treatments. Existing learning-based methods rely heavily on expensive point-wise annotations. To alleviate this problem, we are…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Liangdong Qiu , Chongjie Ye , Pei Chen , Yunbi Liu , Xiaoguang Han , Shuguang Cui

Human face is a 3D object with shape and surface texture. 3D Morphable Model (3DMM) is a powerful tool for reconstructing the 3D face from a single 2D face image. In the shape fitting process, 3DMM estimates the correspondence between 2D…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Yu Yanga , Xiao-Jun Wu , Josef Kittler

In challenging environments where traditional sensing modalities struggle, in-air sonar offers resilience to optical interference. Placing a priori known landmarks in these environments can eliminate accumulated errors in autonomous mobile…

Robotics · Computer Science 2024-12-23 Wouter Jansen , Jan Steckel

Facial alignment involves finding a set of landmark points on an image with a known semantic meaning. However, this semantic meaning of landmark points is often lost in 2D approaches where landmarks are either moved to visible boundaries or…

Computer Vision and Pattern Recognition · Computer Science 2017-09-11 Chandrasekhar Bhagavatula , Chenchen Zhu , Khoa Luu , Marios Savvides

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…

Computer Vision and Pattern Recognition · Computer Science 2023-02-27 Pasquale Lafiosca , Ip-Shing Fan , Nicolas P. Avdelidis

In the medical field, landmark detection in MRI plays an important role in reducing medical technician efforts in tasks like scan planning, image registration, etc. First, 88 landmarks spread across the brain anatomy in the three respective…

Image and Video Processing · Electrical Eng. & Systems 2021-11-02 Muhammad Ilyas Patel , Shrey Singla , Razeem Ahmad Ali Mattathodi , Sumit Sharma , Deepam Gautam , Srinivasa Rao Kundeti

3D anatomical landmarks play an important role in health research. Their automated prediction/localization thus becomes a vital task. In this paper, we introduce a deformation method for 3D anatomical landmarks prediction. It utilizes a…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Sheldon Fung , Xuequan Lu , Mantas Mykolaitis , Gediminas Kostkevicius , Domantas Ozerenskis

Anatomical landmark localization in 2D/3D images is a critical task in medical imaging. Although many general-purpose tools exist for landmark localization in classical computer vision tasks, such as pose estimation, they lack the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Jef Jonkers , Luc Duchateau , Glenn Van Wallendael , Sofie Van Hoecke

3D image segmentation is a recent and crucial step in many medical analysis and recognition schemes. In fact, it represents a relevant research subject and a fundamental challenge due to its importance and influence. This paper provides a…

Image and Video Processing · Electrical Eng. & Systems 2022-07-22 Omar Boudraa

Optical Intra-oral Scanners (IOS) are widely used in digital dentistry, providing 3-Dimensional (3D) and high-resolution geometrical information of dental crowns and the gingiva. Accurate 3D tooth segmentation, which aims to precisely…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Huimin Xiong , Kunle Li , Kaiyuan Tan , Yang Feng , Joey Tianyi Zhou , Jin Hao , Zuozhu Liu

3D ultrasound (US) can facilitate detailed prenatal examinations for fetal growth monitoring. To analyze a 3D US volume, it is fundamental to identify anatomical landmarks of the evaluated organs accurately. Typical deep learning methods…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Chaoyu Chen , Xin Yang , Ruobing Huang , Wenlong Shi , Shengfeng Liu , Mingrong Lin , Yuhao Huang , Yong Yang , Yuanji Zhang , Huanjia Luo , Yankai Huang , Yi Xiong , Dong Ni

The rapid increase in the availability of accurate 3D scanning devices has moved facial recognition and analysis into the 3D domain. 3D facial landmarks are often used as a simple measure of anatomy and it is crucial to have accurate…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Rasmus R. Paulsen , Kristine Aavild Juhl , Thilde Marie Haspang , Thomas Hansen , Melanie Ganz , Gudmundur Einarsson