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Video anomaly detection is a challenging task because most anomalies are scarce and non-deterministic. Many approaches investigate the reconstruction difference between normal and abnormal patterns, but neglect that anomalies do not…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Guodong Shen , Yuqi Ouyang , Victor Sanchez

Lensless imaging stands out as a promising alternative to conventional lens-based systems, particularly in scenarios demanding ultracompact form factors and cost-effective architectures. However, such systems are fundamentally governed by…

Image and Video Processing · Electrical Eng. & Systems 2025-05-06 Jiesong Bai , Yuhao Yin , Yihang Dong , Xiaofeng Zhang , Chi-Man Pun , Xuhang Chen

Accurate standard plane acquisition in fetal ultrasound (US) videos is crucial for fetal growth assessment, anomaly detection, and adherence to clinical guidelines. However, manually selecting standard frames is time-consuming and prone to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Divyanshu Mishra , Pramit Saha , He Zhao , Netzahualcoyotl Hernandez-Cruz , Olga Patey , Aris Papageorghiou , J. Alison Noble

Melanoma brain metastases (MBM) are common and spatially heterogeneous lesions, complicating cohort-level analyses due to anatomical variability and differing MRI protocols. We propose a fully differentiable, deep-learning-based deformable…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Nanna E. Wielenberg , Ilinca Popp , Oliver Blanck , Lucas Zander , Jan C. Peeken , Stephanie E. Combs , Anca-Ligia Grosu , Dimos Baltas , Tobias Fechter

Automatic segmentation of the placenta in fetal ultrasound (US) is challenging due to the (i) high diversity of placenta appearance, (ii) the restricted quality in US resulting in highly variable reference annotations, and (iii) the limited…

Vision foundation models have demonstrated exceptional generalization capabilities in segmentation tasks for both generic and specialized images. However, a performance gap persists between foundation models and task-specific, specialized…

Computer Vision and Pattern Recognition · Computer Science 2025-01-31 Chengxi Zeng , David Smithard , Alberto M Gambaruto , Tilo Burghardt

Deep learning-based methods have achieved promising results on surgical instrument segmentation. However, the high computation cost may limit the application of deep models to time-sensitive tasks such as online surgical video analysis for…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Shan Lin , Fangbo Qin , Haonan Peng , Randall A. Bly , Kris S. Moe , Blake Hannaford

This work delves into unsupervised monocular depth estimation in endoscopy, which leverages adjacent frames to establish a supervisory signal during the training phase. For many clinical applications, e.g., surgical navigation, temporally…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Shuwei Shao , Zhongcai Pei , Weihai Chen , Xingming Wu , Zhong Liu

Few-shot semantic segmentation (FSS) offers immense potential in the field of medical image analysis, enabling accurate object segmentation with limited training data. However, existing FSS techniques heavily rely on annotated semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Sanaz Karimijafarbigloo , Reza Azad , Dorit Merhof

Geometric alignment appears in a variety of applications, ranging from domain adaptation, optimal transport, and normalizing flows in machine learning; optical flow and learned augmentation in computer vision and deformable registration…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Steffen Czolbe , Aasa Feragen , Oswin Krause

Non-rigid registration is a necessary but challenging task in medical imaging studies. Recently, unsupervised registration models have shown good performance, but they often require a large-scale training dataset and long training times.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Heejung Park , Gyeong Min Lee , Soopil Kim , Ga Hyung Ryu , Areum Jeong , Sang Hyun Park , Min Sagong

Microscopic examination of slides prepared from tissue samples is the primary tool for detecting and classifying cancerous lesions, a process that is time-consuming and requires the expertise of experienced pathologists. Recent advances in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Saba Fatema , Brighton Nuwagira , Sayoni Chakraborty , Reyhan Gedik , Baris Coskunuzer

Medical image segmentation plays a crucial role in clinical diagnosis and treatment planning. Although models based on convolutional neural networks (CNNs) and Transformers have achieved remarkable success in medical image segmentation…

Image and Video Processing · Electrical Eng. & Systems 2024-10-04 Jiashu Xu

Medical image registration and segmentation are two of the most frequent tasks in medical image analysis. As these tasks are complementary and correlated, it would be beneficial to apply them simultaneously in a joint manner. In this paper,…

Image and Video Processing · Electrical Eng. & Systems 2021-05-06 Mohamed S. Elmahdy , Laurens Beljaards , Sahar Yousefi , Hessam Sokooti , Fons Verbeek , U. A. van der Heide , Marius Staring

A major problem of deep neural networks for image classification is their vulnerability to domain changes at test-time. Recent methods have proposed to address this problem with test-time training (TTT), where a two-branch model is trained…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 David Osowiechi , Gustavo A. Vargas Hakim , Mehrdad Noori , Milad Cheraghalikhani , Ismail Ben Ayed , Christian Desrosiers

Limited capture range, and the requirement to provide high quality initialization for optimization-based 2D/3D image registration methods, can significantly degrade the performance of 3D image reconstruction and motion compensation…

Computer Vision and Pattern Recognition · Computer Science 2018-01-24 Benjamin Hou , Bishesh Khanal , Amir Alansary , Steven McDonagh , Alice Davidson , Mary Rutherford , Jo V. Hajnal , Daniel Rueckert , Ben Glocker , Bernhard Kainz

While Large Language Models (LLMs) are emerging as a promising direction in computational pathology, the substantial computational cost of giga-pixel Whole Slide Images (WSIs) necessitates the use of Multi-Instance Learning (MIL) to enable…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Zhenfeng Zhuang , Fangyu Zhou , Liansheng Wang

3D medical image registration is of great clinical importance. However, supervised learning methods require a large amount of accurately annotated corresponding control points (or morphing), which are very difficult to obtain. Unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2020-05-11 Shengyu Zhao , Tingfung Lau , Ji Luo , Eric I-Chao Chang , Yan Xu

The ability to adapt medical image segmentation networks for a novel class such as an unseen anatomical or pathological structure, when only a few labelled examples of this class are available from local healthcare providers, is…

Image and Video Processing · Electrical Eng. & Systems 2022-01-19 Yiwen Li , Yunguan Fu , Qianye Yang , Zhe Min , Wen Yan , Henkjan Huisman , Dean Barratt , Victor Adrian Prisacariu , Yipeng Hu

Breast lesion segmentation from breast ultrasound (BUS) videos could assist in early diagnosis and treatment. Existing video object segmentation (VOS) methods usually require dense annotation, which is often inaccessible for medical…

Image and Video Processing · Electrical Eng. & Systems 2024-03-05 Jiajun Zeng , Dong Ni , Ruobing Huang