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Artificial intelligence (AI) technology is increasingly used for digital orthodontics, but one of the challenges is to automatically and accurately detect tooth landmarks and axes. This is partly because of sophisticated geometric…

Image and Video Processing · Electrical Eng. & Systems 2021-11-10 Guangshun Wei , Zhiming Cui , Jie Zhu , Lei Yang , Yuanfeng Zhou , Pradeep Singh , Min Gu , Wenping Wang

Embedding 3D morphable basis functions into deep neural networks opens great potential for models with better representation power. However, to faithfully learn those models from an image collection, it requires strong regularization to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Luan Tran , Feng Liu , Xiaoming Liu

Human pose estimation aims at localizing human anatomical keypoints or body parts in the input data (e.g., images, videos, or signals). It forms a crucial component in enabling machines to have an insightful understanding of the behaviors…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Haoming Chen , Runyang Feng , Sifan Wu , Hao Xu , Fengcheng Zhou , Zhenguang Liu

Three-dimensional (3D) ultrasound (US) aims to provide sonographers with the spatial relationships of anatomical structures, playing a crucial role in clinical diagnosis. Recently, deep-learning-based freehand 3D US has made significant…

Image and Video Processing · Electrical Eng. & Systems 2025-06-23 Mingyuan Luo , Xin Yang , Zhongnuo Yan , Yan Cao , Yuanji Zhang , Xindi Hu , Jin Wang , Haoxuan Ding , Wei Han , Litao Sun , Dong Ni

Face alignment aims to estimate the locations of a set of landmarks for a given image. This problem has received much attention as evidenced by the recent advancement in both the methodology and performance. However, most of the existing…

Computer Vision and Pattern Recognition · Computer Science 2015-06-12 Amin Jourabloo , Xiaoming Liu

Reconstructing 3D human shape and pose from monocular images is challenging despite the promising results achieved by the most recent learning-based methods. The commonly occurred misalignment comes from the facts that the mapping from…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Hongwen Zhang , Jie Cao , Guo Lu , Wanli Ouyang , Zhenan Sun

Current state-of-the-art methods cast monocular 3D human pose estimation as a learning problem by training neural networks on large data sets of images and corresponding skeleton poses. In contrast, we propose an approach that can exploit…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Simon Jenni , Paolo Favaro

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

Recently, self-supervised learning (SSL) methods have been used in pre-training the segmentation models for 2D and 3D medical images. Most of these methods are based on reconstruction, contrastive learning and consistency regularization.…

Computer Vision and Pattern Recognition · Computer Science 2024-06-25 Haofeng Li , Yiming Ouyang , Xiang Wan

The increasing availability of intraoral scanning devices has heightened their importance in modern clinical orthodontics. Clinicians utilize advanced Computer-Aided Design techniques to create patient-specific treatment plans that include…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Tibor Kubík , Oldřich Kodym , Petr Šilling , Kateřina Trávníčková , Tomáš Mojžiš , Jan Matula

In this paper, we examine 3 important issues in the practical use of state-of-the-art facial landmark detectors and show how a combination of specific architectural modifications can directly improve their accuracy and temporal stability.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Prashanth Chandran , Gaspard Zoss , Paulo Gotardo , Derek Bradley

Intraoral 3D reconstruction is fundamental to digital orthodontics, yet conventional methods like intraoral scanning are inaccessible for remote tele-orthodontics, which typically relies on sparse smartphone imagery. While 3D Gaussian…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yiyi Miao , Taoyu Wu , Tong Chen , Ji Jiang , Zhe Tang , Zhengyong Jiang , Angelos Stefanidis , Limin Yu , Jionglong Su

Nowadays, panoramic images can be easily obtained by panoramic cameras. However, when the panoramic camera orientation is tilted, a non-upright panoramic image will be captured. Existing upright adjustment models focus on how to estimate…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Heyu Chen , Jianfeng Li , Shigang Li

The field of collaborative robotics and human-robot interaction often focuses on the prediction of human behaviour, while assuming the information about the robot setup and configuration being known. This is often the case with fixed…

Robotics · Computer Science 2019-02-18 Justinas Miseikis , Inka Brijacak , Saeed Yahyanejad , Kyrre Glette , Ole Jakob Elle , Jim Torresen

Objectives: This research introduces a novel area-preserving Generative Adversarial Networks (GAN) inversion technique for effectively de-identifying dental patient images. This innovative method addresses privacy concerns while preserving…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Mingchuan Tian , Wilson Weixun Lu , Kelvin Weng Chiong Foong , Eugene Loh

The recent proposal of a new alignment solution for X-ray tomography, Virtual alignment method (VAM) allowed a more accurate method to remove the possible errors that limit the resolution and clarity of the reconstructed image. In the field…

Image and Video Processing · Electrical Eng. & Systems 2020-10-28 Kyungtaek Jun , Seokhwan Yoon , Jae-Hong Lim , SeungJoon Noh

Reliable 3D-2D alignment between intraoral scan (IOS) models and lateral cephalometric radiographs is critical for orthodontic diagnosis, yet conventional intensity-driven registration methods struggle under real clinical conditions, where…

Computer Vision and Pattern Recognition · Computer Science 2025-11-19 Yiyi Miao , Taoyu Wu , Ji Jiang , Tong Chen , Zhe Tang , Zhengyong Jiang , Angelos Stefanidis , Limin Yu , Jionglong Su

Panoramic radiography is a widely used imaging modality in dental practice and research. However, it only provides flattened 2D images, which limits the detailed assessment of dental structures. In this paper, we propose Occudent, a…

Computer Vision and Pattern Recognition · Computer Science 2023-11-29 Sihwa Park , Seongjun Kim , In-Seok Song , Seung Jun Baek

Tooth segmentation is a critical technology in the field of medical image segmentation, with applications ranging from orthodontic treatment to human body identification and dental pathology assessment. Despite the development of numerous…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Dongping Zhang , Zheng Li , Fangao Zeng , Yutong Wei

Estimating 3D poses from a monocular video is still a challenging task, despite the significant progress that has been made in recent years. Generally, the performance of existing methods drops when the target person is too small/large, or…

Computer Vision and Pattern Recognition · Computer Science 2020-04-27 Yu Cheng , Bo Yang , Bo Wang , Robby T. Tan