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Children diagnosed with a scoliosis pathology are exposed during their follow up to ionic radiations in each X-rays diagnosis. This exposure can have negative effects on the patient's health and cause diseases in the adult age. In order to…

Image and Video Processing · Electrical Eng. & Systems 2020-03-23 Insaf Setitra , Noureddine Aouaa , Abdelkrim Meziane , Afef Benrabia , Houria Kaced , Hanene Belabassi , Sara Ait Ziane , Nadia Henda Zenati , Oualid Djekkoune

To help address the occlusion problem in panoptic segmentation and image understanding, this paper proposes a new large-scale dataset named COCO-OLAC (COCO Occlusion Labels for All Computer Vision Tasks), which is derived from the COCO…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Wenbo Wei , Jun Wang , Abhir Bhalerao

Osteopenia is indicated as a common phenomenon in patients who have scoliosis. Quantitative ultrasound (QUS) has been used to assess skeletal status for decades, and recently ultrasound imaging using reflection signals from vertebra were as…

Medical Physics · Physics 2022-02-23 Sheng Song , Hongbo Chen , Conger Li , Edmond Lou , Lawrence H Le , Rui Zheng

In this paper, we propose a single-shot instance segmentation method, which is simple, fast and accurate. There are two main challenges for one-stage instance segmentation: object instances differentiation and pixel-wise feature alignment.…

Computer Vision and Pattern Recognition · Computer Science 2020-04-14 Yuqing Wang , Zhaoliang Xu , Hao Shen , Baoshan Cheng , Lirong Yang

Object detection or localization is an incremental step in progression from coarse to fine digital image inference. It not only provides the classes of the image objects, but also provides the location of the image objects which have been…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Abdul Mueed Hafiz , Ghulam Mohiuddin Bhat

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…

Image and Video Processing · Electrical Eng. & Systems 2023-12-20 Songhan Ge , Haoyuan Tian , Wei Zhang , Rui Zheng

Physical violence in public spaces is a significant public health concern, with minor incidents such as pushing often serving as precursors to more severe escalations. This research develops an automated system for the real-time detection…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Luis Angel Aparicio Borjas , Victor Elias Nieto , Juan Irving Vasquez , Alfonso Fernandez-Vazquez , Gerardo Antonio Alvarez Hernandez

Precise identification of spinal nerve rootlets is relevant to delineate spinal levels for the study of functional activity in the spinal cord. The goal of this study was to develop an automatic method for the semantic segmentation of…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Jan Valosek , Theo Mathieu , Raphaelle Schlienger , Olivia S. Kowalczyk , Julien Cohen-Adad

Background and Objectives: Neurofibromatosis type 1 is a genetic disorder characterized by the development of numerous neurofibromas (NFs) throughout the body. Whole-body MRI (WB-MRI) is the clinical standard for detection and longitudinal…

Image and Video Processing · Electrical Eng. & Systems 2026-01-05 Georgii Kolokolnikov , Marie-Lena Schmalhofer , Sophie Goetz , Lennart Well , Said Farschtschi , Victor-Felix Mautner , Inka Ristow , Rene Werner

The task of automatically segmenting 3-D surfaces representing boundaries of objects is important for quantitative analysis of volumetric images, and plays a vital role in biomedical image analysis. Recently, graph-based methods with a…

Computer Vision and Pattern Recognition · Computer Science 2018-01-10 Abhay Shah , Michael Abramoff , Xiaodong Wu

In this paper we present a new 3D segmentation approach for the vertebrae of the lower thoracic and the lumbar spine in spiral computed tomography datasets. We implemented a multi-step procedure. Its main components are deformable models,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Andre Mastmeyer , Klaus Engelke , Sebastian Meller , Willi Kalender

Bone age is an important measure for assessing the skeletal and biological maturity of children. Delayed or increased bone age is a serious concern for pediatricians, and needs to be accurately assessed in a bid to determine whether bone…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Ibrahim Salim , A. Ben Hamza

In this work, we tackle the problem of instance segmentation, the task of simultaneously solving object detection and semantic segmentation. Towards this goal, we present a model, called MaskLab, which produces three outputs: box detection,…

Computer Vision and Pattern Recognition · Computer Science 2017-12-14 Liang-Chieh Chen , Alexander Hermans , George Papandreou , Florian Schroff , Peng Wang , Hartwig Adam

We consider estimating the population covariance matrix when the number of available samples is less than the size of the observations. The sample covariance matrix (SCM) being singular, regularization is mandatory in this case. For this…

Statistics Theory · Mathematics 2025-06-16 Olivier Besson

Instance segmentation is a fundamental vision task that aims to recognize and segment each object in an image. However, it requires costly annotations such as bounding boxes and segmentation masks for learning. In this work, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Xinlong Wang , Zhiding Yu , Shalini De Mello , Jan Kautz , Anima Anandkumar , Chunhua Shen , Jose M. Alvarez

Multiple instance learning (MIL) significantly reduced annotation costs via bag-level weak labels for large-scale images, such as histopathological whole slide images (WSIs). However, its adaptability to continual tasks with minimal…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Byung Hyun Lee , Wongi Jeong , Woojae Han , Kyoungbun Lee , Se Young Chun

A fully automated knee MRI segmentation method to study osteoarthritis (OA) was developed using a novel hierarchical set of random forests (RF) classifiers to learn the appearance of cartilage regions and their boundaries. A neighborhood…

Computer Vision and Pattern Recognition · Computer Science 2019-03-12 Satyananda Kashyap , Honghai Zhang , Karan Rao , Milan Sonka

Commercial off the shelf (COTS) 3D scanners are capable of generating point clouds covering visible portions of a face with sub-millimeter accuracy at close range, but lack the coverage and specialized anatomic registration provided by more…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Maxim Bazik , Daniel Crispell

Three-dimensional facial stereophotogrammetry provides a detailed representation of craniofacial soft tissue without the use of ionizing radiation. While manual annotation of landmarks serves as the current gold standard for cephalometric…

Computer Vision and Pattern Recognition · Computer Science 2025-06-18 Bo Berends , Freek Bielevelt , Ruud Schreurs , Shankeeth Vinayahalingam , Thomas Maal , Guido de Jong

The objective of this study is to develop a deep-learning based detection and diagnosis technique for carotid atherosclerosis using a portable freehand 3D ultrasound (US) imaging system. A total of 127 3D carotid artery scans were acquired…

Image and Video Processing · Electrical Eng. & Systems 2023-11-10 Jiawen Li , Yunqian Huang , Sheng Song , Hongbo Chen , Junni Shi , Duo Xu , Haibin Zhang , Man Chen , Rui Zheng