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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…

Image and Video Processing · Electrical Eng. & Systems 2023-12-20 Arnela Hadzic , Barbara Kirnbauer , Darko Stern , Martin Urschler

We present initial results in the development of a novel robot using RGBD cameras, image segmentation, and a simple teat pose estimation algorithm for automated milking. We relate on the analysis of the accuracy of different commercial RGBD…

The three-dimensional geometry and connectivity of pore space determines the flow of single-phase incompressible flow. Herein I report on new throat finding algorithms that contribute to finding the exact flow-relevant geometrical…

Computational Geometry · Computer Science 2014-12-04 Kyung-Taek Jun

Recent advances in the area of plane segmentation from single RGB images show strong accuracy improvements and now allow a reliable segmentation of indoor scenes into planes. Nonetheless, fine-grained details of these segmentation masks are…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Alexander Naumann , Laura Dörr , Niels Ole Salscheider , Kai Furmans

This paper presents a novel approach towards identification of human beings from the statistical analysis of their lip prints. Lip features are extracted by studying the spatial orientations of the grooves present in lip prints of…

Computer Vision and Pattern Recognition · Computer Science 2013-12-04 Saptarshi Bhattacharjee , S Arunkumar , Samir Kumar Bandyopadhyay

In computer-assisted orthodontics, three-dimensional tooth models are required for many medical treatments. Tooth segmentation from cone-beam computed tomography (CBCT) images is a crucial step in constructing the models. However, CBCT…

Image and Video Processing · Electrical Eng. & Systems 2023-07-06 Jiaxiang Liu , Tianxiang Hu , Yang Feng , Wanghui Ding , Zuozhu Liu

Given a set of N points, we have discovered an algorithm that can separate these points from one another by n-dimensional planes. Each point is chosen at random and put into a set S and planes which separate them are determined and put into…

Computational Geometry · Computer Science 2015-10-26 K. Eswaran

This paper proposed a cutting-edge multiclass teeth segmentation architecture that integrates an M-Net-like structure with Swin Transformers and a novel component named Teeth Attention Block (TAB). Existing teeth image segmentation methods…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Afnan Ghafoor , Seong-Yong Moon , Bumshik Lee

We develop a Computer Aided Diagnosis (CAD) system, which enhances the performance of dentists in detecting wide range of dental caries. The CAD System achieves this by acting as a second opinion for the dentists with way higher sensitivity…

Computer Vision and Pattern Recognition · Computer Science 2017-11-27 Muktabh Mayank Srivastava , Pratyush Kumar , Lalit Pradhan , Srikrishna Varadarajan

Cardiac image segmentation is a powerful tool in regard to diagnostics and treatment of cardiovascular diseases. Purely feature-based detection of anatomical structures like the mitral valve is a laborious task due to specifically required…

Image and Video Processing · Electrical Eng. & Systems 2023-01-24 Christian Schmidt , Heinrich Martin Overhoff

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

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

Dental template and parametric dental models are important tools for various applications in digital dentistry. However, constructing an unbiased dental template and accurate parametric dental models remains a challenging task due to the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Lei Ma , Jingyang Zhang , Ke Deng , Peng Xue , Zhiming Cui , Yu Fang , Minhui Tang , Yue Zhao , Min Zhu , Zhongxiang Ding , Dinggang Shen

Point completion refers to completing the missing geometries of an object from incomplete observations. Main-stream methods predict the missing shapes by decoding a global feature learned from the input point cloud, which often leads to…

Computer Vision and Pattern Recognition · Computer Science 2023-09-22 Bingchen Gong , Yinyu Nie , Yiqun Lin , Xiaoguang Han , Yizhou Yu

In this article we investigate the efficiency of deep learning algorithms in solving the task of detecting anatomical reference points on radiological images of the head in lateral projection using a fully convolutional neural network and a…

Image and Video Processing · Electrical Eng. & Systems 2020-06-19 Konstantin Dobratulin , Andrey Gaidel , Irina Aupova , Anna Ivleva , Aleksandr Kapishnikov , Pavel Zelter

Cephalometric analysis has an important role in dentistry and especially in orthodontics as a treatment planning tool to gauge the size and special relationships of the teeth, jaws and cranium. The first step of using such analyses is…

Computer Vision and Pattern Recognition · Computer Science 2015-06-15 Mahshid Majd , Farzaneh Shoeleh

This work proposes a visual odometry method that combines points and plane primitives, extracted from a noisy depth camera. Depth measurement uncertainty is modelled and propagated through the extraction of geometric primitives to the…

Computer Vision and Pattern Recognition · Computer Science 2017-05-19 Pedro F. Proença , Yang Gao

Dental biofilm is the deposition of microbial material over a tooth substratum. Several methods have recently been reported in the literature for biofilm quantification; however, at best they provide a barely automated solution requiring…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Awais Mansoor , Valery Patsekin , Dale Scherl , J. Paul Robinson , Bartlomiej Rajwa

The problem of covering random points in a plane with sets of a given shape has several practical applications in communications and operations research. One especially prominent application is the coverage of randomly-located points of…

Computational Geometry · Computer Science 2022-09-01 Christophter Thron , Anthony Moreno

Cone beam computed tomography (CBCT) is a common way of diagnosing dental related diseases. Accurate segmentation of 3D tooth is of importance for the treatment. Although deep learning based methods have achieved convincing results in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Chunshi Wang , Bin Zhao , Shuxue Ding