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Reflected or scattered light produce artefacts in astronomical observations that can negatively impact the scientific study. Hence, automated detection of these artefacts is highly beneficial, especially with the increasing amounts of data…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Julia Dima , Pablo Gómez , Sandor Kruk , Peter Kretschmar , Simon Rosen , Călin-Adrian Popa

Medical image interpretation using deep learning has shown promise but often requires extensive expert-annotated datasets. To reduce this annotation burden, we develop an Image-Graph Contrastive Learning framework that pairs chest X-rays…

Image and Video Processing · Electrical Eng. & Systems 2024-05-17 Sameer Khanna , Daniel Michael , Marinka Zitnik , Pranav Rajpurkar

Realistic image restoration with high texture areas such as removing face masks is challenging. The state-of-the-art deep learning-based methods fail to guarantee high-fidelity, cause training instability due to vanishing gradient problems…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Md Imran Hosen , Md Baharul Islam

Chest X-ray radiography is one of the earliest medical imaging technologies and remains one of the most widely-used for diagnosis, screening, and treatment follow up of diseases related to lungs and heart. The literature in this field of…

Image and Video Processing · Electrical Eng. & Systems 2020-05-06 Mohammad Eslami , Solale Tabarestani , Shadi Albarqouni , Ehsan Adeli , Nassir Navab , Malek Adjouadi

Obtaining labelled data in medical image segmentation is challenging due to the need for pixel-level annotations by experts. Recent works have shown that augmenting the object of interest with deformable transformations can help mitigate…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Nilesh Kumar , Prashnna K. Gyawali , Sandesh Ghimire , Linwei Wang

We propose a novel framework for video inpainting by adopting an internal learning strategy. Unlike previous methods that use optical flow for cross-frame context propagation to inpaint unknown regions, we show that this can be achieved…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Hao Ouyang , Tengfei Wang , Qifeng Chen

Seam carving is a computational method capable of resizing images for both reduction and expansion based on its content, instead of the image geometry. Although the technique is mostly employed to deal with redundant information, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Thierry P. Moreira , Marcos Cleison S. Santana , Leandro A. Passos João Paulo Papa , Kelton Augusto P. da Costa

Recent advances in the area of plane segmentation from single RGB images show strong accuracy improvements and now allow a reliable segmentation of indoor scenes into planes. Nonetheless, fine-grained details of these segmentation masks are…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Alexander Naumann , Laura Dörr , Niels Ole Salscheider , Kai Furmans

Grating interferometry is a promising diagnostic technique that enables simultaneous acquisition of three complementary, synergistic X-ray images: transmission, differential phase, and dark-field. Its key advantage over other setups is its…

Mammography images are widely used to detect non-palpable breast lesions or nodules, preventing cancer and providing the opportunity to plan interventions when necessary. The identification of some structures of interest is essential to…

Image and Video Processing · Electrical Eng. & Systems 2023-07-21 Cesar A. Sierra-Franco , Jan Hurtado , Victor de A. Thomaz , Leonardo C. da Cruz , Santiago V. Silva , Alberto B. Raposo

Image inpainting is a challenging problem as it needs to fill the information of the corrupted regions. Most of the existing inpainting algorithms assume that the positions of the corrupted regions are known. Different from the existing…

Computer Vision and Pattern Recognition · Computer Science 2017-12-27 Yang Liu , Jinshan Pan , Zhixun Su

Recovering the missing regions of an image is a task that is called image inpainting. Depending on the shape of missing areas, different methods are presented in the literature. One of the challenges of this problem is extracting features…

Computer Vision and Pattern Recognition · Computer Science 2020-01-13 Ghazale Ghorbanzade , Zahra Nabizadeh , Nader Karimi , Shadrokh Samavi

To facilitate both the detection and the interpretation of findings in chest X-rays, comparison with a previous image of the same patient is very valuable to radiologists. Today, the most common approach for deep learning methods to…

Computer Vision and Pattern Recognition · Computer Science 2023-01-25 Astrid Berg , Eva Vandersmissen , Maria Wimmer , David Major , Theresa Neubauer , Dimitrios Lenis , Jeroen Cant , Annemiek Snoeckx , Katja Bühler

In this paper, we present a novel approach to the estimation of strongly varying backgrounds in astronomical images by means of small objects removal and subsequent missing pixels interpolation. The method is based on the analysis of a…

Instrumentation and Methods for Astrophysics · Physics 2016-08-10 Adam Popowicz , Bogdan Smolka

We propose an end-to-end learning framework for segmenting generic objects in both images and videos. Given a novel image or video, our approach produces a pixel-level mask for all "object-like" regions---even for object categories never…

Computer Vision and Pattern Recognition · Computer Science 2018-12-19 Bo Xiong , Suyog Dutt Jain , Kristen Grauman

Image inpainting is a restoration process which has numerous applications. Restoring of scanned old images with scratches, or removing objects in images are some of inpainting applications. Different approaches have been used for…

Image and Video Processing · Electrical Eng. & Systems 2018-01-03 Mehran Motmaen , Majid Mohrekesh , Mojtaba Akbari , Nader Karimi , Shadrokh Samavi

Automatic instance segmentation is a problem that occurs in many biomedical applications. State-of-the-art approaches either perform semantic segmentation or refine object bounding boxes obtained from detection methods. Both suffer from…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Long Chen , Martin Strauch , Dorit Merhof

The translation of an early (1957), Russian article on the development of x-ray computed tomography is provided. The article demonstrates a principle possibility of determining the local attenuation coefficient in every element of a…

History and Philosophy of Physics · Physics 2020-01-14 Alex Gustschin

High resolution reconstruction of complicated objects from incomplete and noisy data can be achieved by solving modulation equations iteratively under physical constraints. This direct demodulation method is a powerful technique for dealing…

Astrophysics · Physics 2009-11-10 Ti-Pei Li , Mei Wu

Modern machine learning techniques have shown tremendous potential, especially for object detection on camera images. For this reason, they are also used to enable safety-critical automated processes such as autonomous drone flights. We…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Jonathan Lyhs , Lars Hinneburg , Michael Fischer , Florian Ölsner , Stefan Milz , Jeremy Tschirner , Patrick Mäder