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X-ray images are the first steps for diagnosing and further treating dental problems. So, early diagnosis prevents the development and increase of oral and dental diseases. In this paper, we developed a semantic segmentation algorithm based…

Computer Vision and Pattern Recognition · Computer Science 2023-05-11 Mohammad Mashayekhi , Sara Ahmadi Majd , Arian Amiramjadi , Babak Mashayekhi

We present a novel method to correct flying pixels within data captured by Time-of-flight (ToF) sensors. Flying pixel (FP) artifacts occur when signals from foreground and background objects reach the same sensor pixel, leading to a…

Image and Video Processing · Electrical Eng. & Systems 2024-10-11 Ekamresh Vasudevan , Shashank N. Sridhara , Eduardo Pavez , Antonio Ortega , Raghavendra Singh , Srinath Kalluri

Let $S$ be a set of $n$ points in the plane. We present several different algorithms for finding a pair of points in $S$ such that any disk that contains that pair must contain at least $cn$ points of $S$, for some constant $c>0$. The first…

Computational Geometry · Computer Science 2026-01-29 Prosenjit Bose , Guillermo Esteban , Tyler Tuttle

Cephalometric analysis is an important tool for orthodontic diagnosis. At present, most cephalometric analysis is performed with the help of image processing techniques. Hence, the resolution between millimeter and pixel is needed with high…

Image and Video Processing · Electrical Eng. & Systems 2019-12-10 Jia Guo , Shumeng Wang , Huiqi Li

Tooth point cloud segmentation is a fundamental task in many orthodontic applications. Current research mainly focuses on fully supervised learning which demands expensive and tedious manual point-wise annotation. Although recent…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yifan Liu , Wuyang Li , Cheng Wang , Hui Chen , Yixuan Yuan

Optical coherence tomography (OCT) is a commonly-used method of extracting high resolution retinal information. Moreover there is an increasing demand for the automated retinal layer segmentation which facilitates the retinal disease…

Image and Video Processing · Electrical Eng. & Systems 2020-09-30 Zeyu Fu , Yang Sun , Xiangyu Zhang , Scott Stainton , Shaun Barney , Jeffry Hogg , William Innes , Satnam Dlay

This paper proposes R-VoxelMap, a novel voxel mapping method that constructs accurate voxel maps using a geometry-driven recursive plane fitting strategy to enhance the localization accuracy of online LiDAR odometry. VoxelMap and its…

Robotics · Computer Science 2026-01-21 Haobo Xi , Shiyong Zhang , Qianli Dong , Yunze Tong , Songyang Wu , Jing Yuan , Xuebo Zhang

Diagnosing different retinal diseases from Spectral Domain Optical Coherence Tomography (SD-OCT) images is a challenging task. Different automated approaches such as image processing, machine learning and deep learning algorithms have been…

Image and Video Processing · Electrical Eng. & Systems 2020-05-19 Sharif Amit Kamran , Sourajit Saha , Ali Shihab Sabbir , Alireza Tavakkoli

Point cloud completion aims at completing geometric and topological shapes from a partial observation. However, some topology of the original shape is missing, existing methods directly predict the location of complete points, without…

Computer Vision and Pattern Recognition · Computer Science 2022-04-01 Junshu Tang , Zhijun Gong , Ran Yi , Yuan Xie , Lizhuang Ma

Tooth image segmentation is a cornerstone of dental digitization. However, traditional image encoders relying on fixed-resolution feature maps often lead to discontinuous segmentation and poor discrimination between target regions and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Xinxin Zhao , Jian Jiang , Yan Tian , Liqin Wu , Zhaocheng Xu , Teddy Yang , Yunuo Zou , Xun Wang

Tooth segmentation in Cone-Beam Computed Tomography (CBCT) remains challenging, especially for fine structures like root apices, which is critical for assessing root resorption in orthodontics. We introduce GEPAR3D, a novel approach that…

We propose a topology-constrained quantized nnUNet framework for efficient and anatomically accurate 3D tooth segmentation, addressing the challenges of spatial distortion introduced by quantization in deep learning models. The proposed…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Paarth Prasad , Ruchika Malhotra

Point cloud completion aims to reconstruct complete 3D shapes from partial observations, which is a challenging problem due to severe occlusions and missing geometry. Despite recent advances in multimodal techniques that leverage…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Wang Luo , Di Wu , Hengyuan Na , Yinlin Zhu , Miao Hu , Guocong Quan

We propose a new deep learning approach for automatic detection and segmentation of fluid within retinal OCT images. The proposed framework utilizes both ResNet and Encoder-Decoder neural network architectures. When training the network, we…

Computer Vision and Pattern Recognition · Computer Science 2017-08-21 Dustin Morley , Hassan Foroosh , Saad Shaikh , Ulas Bagci

The tongue surface houses a range of papillae that are integral to the mechanics and chemistry of taste and textural sensation. Although gustatory function of papillae is well investigated, the uniqueness of papillae within and across…

Machine Learning · Computer Science 2023-12-15 Rayna Andreeva , Anwesha Sarkar , Rik Sarkar

Retinal blood vessels structure contains information about diseases like obesity, diabetes, hypertension and glaucoma. This information is very useful in identification and treatment of these fatal diseases. To obtain this information,…

Image and Video Processing · Electrical Eng. & Systems 2020-12-08 Sushil Kumar Saroj , Vikas Ratna , Rakesh Kumar , Nagendra Pratap Singh

Purpose: To develop a fast and precise method for searching rectangular regions in brain tumor images. Methods: The authors propose a new method for searching rectangular tumor regions in brain MR images. The proposed method consisted of a…

Image and Video Processing · Electrical Eng. & Systems 2026-01-08 Hidenori Takeshima , Shuki Maruyama

This paper introduces a novel pipeline designed to bring ultrasound (US) plane pose estimation closer to clinical use for more effective navigation to the standard planes (SPs) in the fetal brain. We propose a semi-supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Chiara Di Vece , Antonio Cirigliano , Meala Le Lous , Raffaele Napolitano , Anna L. David , Donald Peebles , Pierre Jannin , Francisco Vasconcelos , Danail Stoyanov

This paper presents PCDreamer, a novel method for point cloud completion. Traditional methods typically extract features from partial point clouds to predict missing regions, but the large solution space often leads to unsatisfactory…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Guangshun Wei , Yuan Feng , Long Ma , Chen Wang , Yuanfeng Zhou , Changjian Li

Template matching is one of the simplest methods used for eyes and mouth detection. However, it can be modified and extended to become a powerful tool. Since the patch itself plays a significant role in optimizing detection performance, a…

Computer Vision and Pattern Recognition · Computer Science 2010-07-13 Lim Huey Charn , Liyana Nuraini Rasid , Shahrel A. Suandi