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In this paper, we propose a new framework for improving Content Based Image Retrieval (CBIR) for texture images. This is achieved by using a new image representation based on the RCT-Plus transform which is a novel variant of the Redundant…

计算机视觉与模式识别 · 计算机科学 2024-03-12 Asal Rouhafzay , Nadia Baaziz , Mohand Said Allili

The success of embolisation, a minimally invasive treatment of liver cancer, could be evaluated in the operational room with cone-beam CT by acquiring a dynamic perfusion scan. The reconstruction algorithm must address the issues of low…

Precise segmentation and anatomical identification of the vertebrae provides the basis for automatic analysis of the spine, such as detection of vertebral compression fractures or other abnormalities. Most dedicated spine CT and MR scans as…

计算机视觉与模式识别 · 计算机科学 2019-02-15 Nikolas Lessmann , Bram van Ginneken , Pim A. de Jong , Ivana Išgum

Medical image analysis tasks often focus on regions or structures located in a particular location within the patient's body. Often large parts of the image may not be of interest for the image analysis task. When using deep-learning based…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Thomas Buddenkotte , Roland Opfer , Julia Krüger , Alessa Hering , Mireia Crispin-Ortuzar

Current state-of-the-art motion-based dynamic computed tomography reconstruction techniques estimate the deformation by considering motion models in the entire object volume although occasionally the proper change is local. In this article,…

最优化与控制 · 数学 2023-09-06 Anh-Tuan Nguyen , Jens Renders , Jan Sijbers , Jan De Beenhouwer

Quantitative computed tomography (QCT) is a widely used tool for osteoporosis diagnosis and monitoring. The assessment of cortical markers like cortical bone mineral density (BMD) and thickness is a demanding task, mainly because of the…

图像与视频处理 · 电气工程与系统科学 2019-02-18 Stefan Reinhold. Timo Damm , Lukas Huber , Reimer Andresen , Reinhard Barkmann , Claus-C. Glüer , Reinhard Koch

This study introduces a novel reconstruction method for dental cone-beam computed tomography (CBCT), focusing on effectively reducing metal-induced artifacts commonly encountered in the presence of prevalent metallic implants. Despite…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Hyoung Suk Park , Kiwan Jeon , Jin Keun Seo

An osteoporosis-related fracture occurs every three seconds worldwide, affecting one in three women and one in five men aged over 50. The early detection of at-risk patients facilitates effective and well-evidenced preventative…

图像与视频处理 · 电气工程与系统科学 2020-10-09 David Chettrit , Tomer Meir , Hila Lebel , Mila Orlovsky , Ronen Gordon , Ayelet Akselrod-Ballin , Amir Bar

Cone Beam Computed Tomography (CBCT) plays a key role in dental diagnosis and surgery. However, the metal teeth implants could bring annoying metal artifacts during the CBCT imaging process, interfering diagnosis and downstream processing…

图像与视频处理 · 电气工程与系统科学 2024-04-19 Yuxuan Shi , Jun Xu , Dinggang Shen

Computed tomography is a method for synthesizing volumetric or cross-sectional images of an object from a collection of projections. Popular reconstruction methods for computed tomography are based on idealized models and assumptions that…

数值分析 · 数学 2022-03-03 Frederik H. Pedersen , Jakob S. Jørgensen , Martin S. Andersen

Mixed ionic electronic transfer (MIET) reactions, such as the oxygen reduction reaction (ORR) at oxide surfaces, are of paramount importance to manifold technologically highly relevant processes and fundamental understanding must be…

材料科学 · 物理学 2026-01-23 Alexander Stangl , Alexander Schmid , Adeel Riaz , Jürgen Fleig , Arnaud Badel

The loss of cervical lordosis is a common degenerative disorder known to be associated with abnormal spinal alignment. In recent years, ultrasound (US) imaging has been widely applied in the assessment of spine deformity and has shown…

图像与视频处理 · 电气工程与系统科学 2023-12-20 Songhan Ge , Haoyuan Tian , Wei Zhang , Rui Zheng

Long-term vertebral fractures severely affect the life quality of patients, causing kyphotic, lumbar deformity and even paralysis. Computed tomography (CT) is a common clinical examination to screen for this disease at early stages.…

计算机视觉与模式识别 · 计算机科学 2022-11-14 Xin Wei , Huaiwei Cong , Zheng Zhang , Junran Peng , Guoping Chen , Jinpeng Li

The research work presented in this paper is to achieve the tissue classification and automatically diagnosis the abnormal tumor region present in Computed Tomography (CT) images using the wavelet based statistical texture analysis method.…

计算机视觉与模式识别 · 计算机科学 2015-03-13 A. Padma , Dr. R. Sukanesh

Accurate segmentation of anatomical structures is vital for medical image analysis. The state-of-the-art accuracy is typically achieved by supervised learning methods, where gathering the requisite expert-labeled image annotations in a…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Yuhang Lu , Kang Zheng , Weijian Li , Yirui Wang , Adam P. Harrison , Chihung Lin , Song Wang , Jing Xiao , Le Lu , Chang-Fu Kuo , Shun Miao

Cervical spine fractures demand rapid and accurate diagnosis for effective clinical management. This study presents an automated, end-to-end pipeline for fracture detection across cervical vertebrae (C1--C7) that assesses the feasibility of…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Fabi Nahian Madhurja , Rusab Sarmun , Muhammad E. H. Chowdhury , Adam Mushtak , Israa Al-Hashimi , Sohaib Bassam Zoghoul

Edge detection (ED) remains a fundamental task in computer vision, yet its performance is often hindered by the ambiguous nature of non-edge pixels near object boundaries. The widely adopted Weighted Binary Cross-Entropy (WBCE) loss treats…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Hao Shu

Cone Beam Computed Tomography (CBCT) is pivotal for 3D diagnostic imaging in dentistry. However, the development of robust AI models for volumetric analysis is often constrained by the scarcity of large, annotated datasets. Self-supervised…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Xinquan Yang , Jianfeng Ren , Xuguang Li , Kian Ming Lim , He Meng , Linlin Shen , Yongqiang Deng

Endometrial cancer is one of the most common tumors in the female reproductive system and is the third most common gynecological malignancy that causes death after ovarian and cervical cancer. Early diagnosis can significantly improve the…

图像与视频处理 · 电气工程与系统科学 2023-10-12 Dechao Tang , Tianming Du , Deguo Ma , Zhiyu Ma , Hongzan Sun , Marcin Grzegorzek , Huiyan Jiang , Chen Li

Purpose: Scatter artifacts drastically degrade the image quality of cone-beam computed tomography (CBCT) scans. Although deep learning-based methods show promise in estimating scatter from CBCT measurements, their deployment in mobile CBCT…

信号处理 · 电气工程与系统科学 2025-09-12 Harshit Agrawal , Ari Hietanen , Simo Särkkä