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Automatic retinal layer segmentation with medical images, such as optical coherence tomography (OCT) images, serves as an important tool for diagnosing ophthalmic diseases. However, it is challenging to achieve accurate segmentation due to…

Image and Video Processing · Electrical Eng. & Systems 2024-04-26 Xiang He , Weiye Song , Yiming Wang , Fabio Poiesi , Ji Yi , Manishi Desai , Quanqing Xu , Kongzheng Yang , Yi Wan

The success of supervised lesion segmentation algorithms using Computed Tomography (CT) exams depends significantly on the quantity and variability of samples available for training. While annotating such data constitutes a challenge…

Image and Video Processing · Electrical Eng. & Systems 2020-08-12 Dario Augusto Borges Oliveira

In x-ray computed tomography (CT) it is generally acknowledged that reconstruction methods exploiting image sparsity allow reconstruction from a significantly reduced number of projections. The use of such reconstruction methods is…

Numerical Analysis · Mathematics 2014-08-05 Jakob S. Jørgensen , Emil Y. Sidky , Per Christian Hansen , Xiaochuan Pan

Our research focuses on few-shot fine-grained image classification, which faces two major challenges: appearance similarity of fine-grained objects and limited number of samples. To preserve the appearance details of images, traditional…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Shulei Qiu , Wanqi Yang , Ming Yang

Synthetic images are an option for augmenting limited medical imaging datasets to improve the performance of various machine learning models. A common metric for evaluating synthetic image quality is the Fr\'echet Inception Distance (FID)…

Image and Video Processing · Electrical Eng. & Systems 2025-07-30 Thomas Wallace , Ik Siong Heng , Senad Subasic , Chris Messenger

Producing densely annotated data is a difficult and tedious task for medical imaging applications. To address this problem, we propose a novel approach to generate supervision for semi-supervised semantic segmentation. We argue that…

Image and Video Processing · Electrical Eng. & Systems 2022-10-10 Constantin Seibold , Simon Reiß , Jens Kleesiek , Rainer Stiefelhagen

Segmentation of tumors in brain MRI images is a challenging task, where most recent methods demand large volumes of data with pixel-level annotations, which are generally costly to obtain. In contrast, image-level annotations, where only…

Image and Video Processing · Electrical Eng. & Systems 2019-11-07 Sergey Pavlov , Alexey Artemov , Maksim Sharaev , Alexander Bernstein , Evgeny Burnaev

Ultra low radiation dose in X-ray Computed Tomography (CT) is an important clinical objective in order to minimize the risk of carcinogenesis. Compressed Sensing (CS) enables significant reductions in radiation dose to be achieved by…

As Computed Tomography (CT) scans are an essential medical test, many techniques have been proposed to reconstruct high-quality images using a smaller amount of radiation. One approach is to employ algebraic factorization methods to…

Image and Video Processing · Electrical Eng. & Systems 2019-07-04 Mónica Chillarón , Gregorio Quintana-Ortí , Vicente Vidal , Gumersindo Verdú

Deep neural networks enable highly accurate image segmentation, but require large amounts of manually annotated data for supervised training. Few-shot learning aims to address this shortcoming by learning a new class from a few annotated…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 Abhijit Guha Roy , Shayan Siddiqui , Sebastian Pölsterl , Nassir Navab , Christian Wachinger

Optical fiber technologies enable high-speed communication, medical imaging, and advanced sensing. Among the techniques for the characterization of optical fibers, Xray computed tomography has recently emerged as a versatile non-destructive…

Multi-spectral computed tomography is an emerging technology for the non-destructive identification of object materials and the study of their physical properties. Applications of this technology can be found in various scientific and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Christian Kehl , Wail Mustafa , Jan Kehres , Anders Bjorholm Dahl , Ulrik Lund Olsen

Accurate segmentation of pulmonary vessels plays a very critical role in diagnosing and assessing various lung diseases. Currently, many automated algorithms are primarily targeted at CTPA (Computed Tomography Pulmonary Angiography) types…

Image and Video Processing · Electrical Eng. & Systems 2025-05-20 Ying Ming , Shaoze Luo , Longfei Zhao , Ruijie Zhao , Bing Li , Qiqi Xu , Wei Song

Few-shot learning performs classification tasks and regression tasks on scarce samples. As one of the most representative few-shot learning models, Prototypical Network represents each class as sample average, or a prototype, and measures…

Computer Vision and Pattern Recognition · Computer Science 2022-10-05 Tao Zhang , Wu Huang

Panoptic segmentation combines instance and semantic predictions, allowing the detection of "things" and "stuff" simultaneously. Effectively approaching panoptic segmentation in remotely sensed data can be auspicious in many challenging…

Background and Objective: The strong demand for medical imaging applications leads to the popularity of the CT reconstruction problem. Researchers proposed multiple constraints to tackle none ideal factors in CT reconstruction such as…

Image and Video Processing · Electrical Eng. & Systems 2022-12-20 Ziyu Shu , Alireza Entezari

For reconstructing large tomographic datasets fast, filtered backprojection-type or Fourier-based algorithms are still the method of choice, as they have been for decades. These robust and computationally efficient algorithms have been…

Numerical Analysis · Mathematics 2021-08-31 Poulami Somanya Ganguly , Daniël M. Pelt , Doga Gürsoy , Francesco de Carlo , K. Joost Batenburg

This paper aims to tackle the issues on unavailable or insufficient clinical US data and meaningful annotation to enable bone segmentation and registration for US-guided spinal surgery. While the US is not a standard paradigm for spinal…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Ang Li , Jiayi Han , Yongjian Zhao , Keyu Li , Li Liu

Recently, automated medical image segmentation methods based on deep learning have achieved great success. However, they heavily rely on large annotated datasets, which are costly and time-consuming to acquire. Few-shot learning aims to…

Artificial Intelligence · Computer Science 2024-08-20 Jiayu Huo , Ruiqiang Xiao , Haotian Zheng , Yang Liu , Sebastien Ourselin , Rachel Sparks

Recently, deep learning enabled the accurate segmentation of various diseases in medical imaging. These performances, however, typically demand large amounts of manual voxel annotations. This tedious process for volumetric data becomes more…