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Tooth segmentation from intraoral scans is a crucial part of digital dentistry. Many Deep Learning based tooth segmentation algorithms have been developed for this task. In most of the cases, high accuracy has been achieved, although, most…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Ananya Jana , Aniruddha Maiti , Dimitris N. Metaxas

Various autonomous applications rely on recognizing specific known landmarks in their environment. For example, Simultaneous Localization And Mapping (SLAM) is an important technique that lays the foundation for many common tasks, such as…

Robotics · Computer Science 2023-12-01 Maarten de Backer , Wouter Jansen , Dennis Laurijssen , Ralph Simon , Walter Daems , Jan Steckel

While facial biometrics has been widely used for identification purpose, it has recently been researched as medical biometrics for a range of diseases. In this chapter, we investigate the facial landmark detection for atypical 3D facial…

Machine Learning · Computer Science 2019-09-15 Gary Storey , Ahmed Bouridane , Richard Jiang , Chang-tsun Li

LiDAR odometry is one of the essential parts of LiDAR simultaneous localization and mapping (SLAM). However, existing LiDAR odometry tends to match a new scan simply iteratively with previous fixed-pose scans, gradually accumulating errors.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Letian Zhang , Jinping Wang , Lu Jie , Nanjie Chen , Xiaojun Tan , Zhifei Duan

3D Morphable models of the human body capture variations among subjects and are useful in reconstruction and editing applications. Current dental models use an explicit mesh scene representation and model only the teeth, ignoring the gum.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Congyi Zhang , Mohamed Elgharib , Gereon Fox , Min Gu , Christian Theobalt , Wenping Wang

The incorporation of 3D data in facial analysis tasks has gained popularity in recent years. Though it provides a more accurate and detailed representation of the human face, accruing 3D face data is more complex and expensive than 2D face…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Shubhajit Basak , Sathish Mangapuram , Gabriel Costache , Rachel McDonnell , Michael Schukat

Evaluating the performance of Multi-modal Large Language Models (MLLMs), integrating both point cloud and language, presents significant challenges. The lack of a comprehensive assessment hampers determining whether these models truly…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Junjie Zhang , Tianci Hu , Xiaoshui Huang , Yongshun Gong , Dan Zeng

Anatomical landmark detection in medical images is essential for various clinical and research applications, including disease diagnosis and surgical planning. However, manual landmark annotation is time-consuming and requires significant…

Image and Video Processing · Electrical Eng. & Systems 2025-07-22 Soorena Salari , Arash Harirpoush , Hassan Rivaz , Yiming Xiao

Image and video analysis is often a crucial step in the study of animal behavior and kinematics. Often these analyses require that the position of one or more animal landmarks are annotated (marked) in numerous images. The process of…

Computer Vision and Pattern Recognition · Computer Science 2017-02-03 Mikhail Breslav , Tyson L. Hedrick , Stan Sclaroff , Margrit Betke

Recent advancements in statistical learning and computational abilities have enabled autonomous vehicle technology to develop at a much faster rate. While many of the architectures previously introduced are capable of operating under highly…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 David Paz , Hengyuan Zhang , Qinru Li , Hao Xiang , Henrik Christensen

An efficient, fully automatic method for 3D face shape and pose estimation in unconstrained 2D imagery is presented. The proposed method jointly estimates a dense set of 3D landmarks and facial geometry using a single pass of a modified…

Computer Vision and Pattern Recognition · Computer Science 2017-08-31 Daniel Crispell , Maxim Bazik

We describe new approaches for distances between pairs of 2-dimensional surfaces (embedded in 3-dimensional space) that use local structures and global information contained in inter-structure geometric relationships. We present algorithms…

Numerical Analysis · Mathematics 2015-05-30 D. Boyer , Y. Lipman , E. St. Clair , J. Puente , T. Funkhouser , B. Patel , J. Jernvall , I. Daubechies

Three-dimensional shape reconstruction of 2D landmark points on a single image is a hallmark of human vision, but is a task that has been proven difficult for computer vision algorithms. We define a feed-forward deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2016-09-29 Ruiqi Zhao , Yan Wang , Aleix Martinez

This work studies learning from a synergy process of 3D Morphable Models (3DMM) and 3D facial landmarks to predict complete 3D facial geometry, including 3D alignment, face orientation, and 3D face modeling. Our synergy process leverages a…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Cho-Ying Wu , Qiangeng Xu , Ulrich Neumann

We consider the problem of computing accurate point-to-point correspondences among a set of human face scans with varying expressions. Our fully automatic approach does not require any manually placed markers on the scan. Instead, the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-30 Augusto Salazar , Stefanie Wuhrer , Chang Shu , Flavio Prieto

Accurate tooth volume segmentation is a prerequisite for computer-aided dental analysis. Deep learning-based tooth segmentation methods have achieved satisfying performances but require a large quantity of tooth data with ground truth. The…

Image and Video Processing · Electrical Eng. & Systems 2022-08-04 Weiwei Cui , Yaqi Wang , Yilong Li , Dan Song , Xingyong Zuo , Jiaojiao Wang , Yifan Zhang , Huiyu Zhou , Bung san Chong , Liaoyuan Zeng , Qianni Zhang

Patients take care of what their teeth will be like after the orthodontics. Orthodontists usually describe the expectation movement based on the original smile images, which is unconvincing. The growth of deep-learning generative models…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Feihong Shen , JIngjing Liu , Jianwen Lou , Haizhen Li , Bing Fang , Chenglong Ma , Jin Hao , Yang Feng , Youyi Zheng

In the study of shapes of human organs using computational anatomy, variations are found to arise from inter-subject anatomical differences, disease-specific effects, and measurement noise. This paper introduces a stochastic model for…

Computer Vision and Pattern Recognition · Computer Science 2016-12-19 Alexis Arnaudon , Darryl D. Holm , Akshay Pai , Stefan Sommer

Manual annotation of anatomical landmarks on 3D facial scans is a time-consuming and expertise-dependent task, yet it remains critical for clinical assessments, morphometric analysis, and craniofacial research. While several deep learning…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Ali Shadman Yazdi , Annalisa Cappella , Benedetta Baldini , Riccardo Solazzo , Gianluca Tartaglia , Chiarella Sforza , Giuseppe Baselli

In recent years, the demand for dental implants has surged, driven by their high success rates and esthetic advantages. However, accurate prediction of missing teeth for precise digital implant planning remains a challenge due to the…

Computer Vision and Pattern Recognition · Computer Science 2023-07-18 Lei Ma , Peng Xue , Yuning Gu , Yue Zhao , Min Zhu , Zhongxiang Ding , Dinggang Shen