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Deep unsupervised representation learning has recently led to new approaches in the field of Unsupervised Anomaly Detection (UAD) in brain MRI. The main principle behind these works is to learn a model of normal anatomy by learning to…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Christoph Baur , Stefan Denner , Benedikt Wiestler , Shadi Albarqouni , Nassir Navab

Medical ultrasound is widely used technique for diagnosing internal organs. As common artifacts, shadows often appear in ultrasound images. Detecting such shadows is curious because they prevent accurate diagnosis. In this paper, we propose…

图像与视频处理 · 电气工程与系统科学 2019-08-08 Suguru Yasutomi , Tatsuya Arakaki , Ryuji Hamamoto

A computer-aided interpretation approach is proposed to detect rheumatic arthritis (RA) of human finger joints in optical tomographic images. The image interpretation method employs a multi-variate signal detection analysis aided by a…

Cardiac and lung ultrasound are technically demanding because operators must identify patient-specific intercostal acoustic windows and then navigate between standard views by adjusting probe position, rotation, and force across different…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Yu Chung Lee , David G. Black , Ryan S. Yeung , Septimiu E. Salcudean

Observing a human demonstrator manipulate objects provides a rich, scalable and inexpensive source of data for learning robotic policies. However, transferring skills from human videos to a robotic manipulator poses several challenges, not…

机器人学 · 计算机科学 2023-03-08 Minttu Alakuijala , Gabriel Dulac-Arnold , Julien Mairal , Jean Ponce , Cordelia Schmid

Ultrasound imaging is a commonly used modality for several diagnostic and therapeutic procedures. However, the diagnosis by ultrasound relies heavily on the quality of images assessed manually by sonographers, which diminishes the…

图像与视频处理 · 电气工程与系统科学 2023-07-10 Deepak Raina , Dimitrios Ntentia , SH Chandrashekhara , Richard Voyles , Subir Kumar Saha

In neuroscience, understanding inter-individual differences has recently emerged as a major challenge, for which functional magnetic resonance imaging (fMRI) has proven invaluable. For this, neuroscientists rely on basic methods such as…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Akrem Sellami , François-Xavier Dupé , Bastien Cagna , Hachem Kadri , Stéphane Ayache , Thierry Artières , Sylvain Takerkart

In obstetric ultrasound (US) scanning, the learner's ability to mentally build a three-dimensional (3D) map of the fetus from a two-dimensional (2D) US image represents a significant challenge in skill acquisition. We aim to build a US…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Chiara Di Vece , Maela Le Lous , Brian Dromey , Francisco Vasconcelos , Anna L David , Donald Peebles , Danail Stoyanov

Accurate estimation of the speed-of-sound (SoS) is important for ultrasound (US) image reconstruction techniques and tissue characterization. Various approaches have been proposed to calculate SoS, ranging from tomography-inspired…

机器学习 · 计算机科学 2024-09-24 Michal Byra , Piotr Jarosik , Piotr Karwat , Ziemowit Klimonda , Marcin Lewandowski

We propose a deep self-learning algorithm to learn the manifold structure of free-breathing and ungated cardiac data and to recover the cardiac CINE MRI from highly undersampled measurements. Our method learns the manifold structure in the…

图像与视频处理 · 电气工程与系统科学 2019-11-07 Abdul Haseeb Ahmed , Hemant Aggarwal , Prashant Nagpal , Mathews Jacob

This article presents a general Bayesian learning framework for multi-modal groupwise image registration. The method builds on probabilistic modelling of the image generative process, where the underlying common anatomy and geometric…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Xinzhe Luo , Xin Wang , Linda Shapiro , Chun Yuan , Jianfeng Feng , Xiahai Zhuang

This work investigates how a naive agent can acquire its own body image in a self-supervised way, based on the predictability of its sensorimotor experience. Our working hypothesis is that, due to its temporal stability, an agent's body…

机器学习 · 计算机科学 2019-06-04 Alban Laflaquière , Verena V. Hafner

Three-dimensional (3D) freehand ultrasound (US) is a widely used imaging modality that allows non-invasive imaging of medical anatomy without radiation exposure. Surface reconstruction of US volume is vital to acquire the accurate…

Ultrasound (US) is widely used for clinical imaging applications thanks to its real-time and non-invasive nature. However, its lesion detectability is often limited in many applications due to the phase aberration artefact caused by…

图像与视频处理 · 电气工程与系统科学 2022-02-18 Shujaat Khan , Jaeyoung Huh , Jong Chul Ye

When robots enter everyday human environments, they need to understand their tasks and how they should perform those tasks. To encode these, reward functions, which specify the objective of a robot, are employed. However, designing reward…

机器人学 · 计算机科学 2022-10-21 Erdem Bıyık

Quantitative ultrasound, e.g., speed-of-sound (SoS) in tissues, provides information about tissue properties that have diagnostic value. Recent studies showed the possibility of extracting SoS information from pulse-echo ultrasound raw data…

图像与视频处理 · 电气工程与系统科学 2022-07-07 Farnaz Khun Jush , Markus Biele , Peter M. Dueppenbecker , Andreas Maier

Intrinsically motivated goal exploration algorithms enable machines to discover repertoires of policies that produce a diversity of effects in complex environments. These exploration algorithms have been shown to allow real world robots to…

机器学习 · 计算机科学 2018-10-11 Alexandre Péré , Sébastien Forestier , Olivier Sigaud , Pierre-Yves Oudeyer

We present a computational method for real-time, patient-specific simulation of 2D ultrasound (US) images. The method uses a large number of tracked ultrasound images to learn a function that maps position and orientation of the transducer…

图像与视频处理 · 电气工程与系统科学 2020-05-12 Cesare Magnetti , Veronika Zimmer , Nooshin Ghavami , Emily Skelton , Jacqueline Matthew , Karen Lloyd , Jo Hajnal , Julia A. Schnabel , Alberto Gomez

Freehand three-dimensional ultrasound (3D-US) has gained considerable interest in research, but even today suffers from its high inter-operator variability in clinical practice. The high variability mainly arises from tracking inaccuracies…

计算机视觉与模式识别 · 计算机科学 2018-11-06 Rüdiger Göbl , Diana Mateus , Christoph Hennersperger , Maximilian Baust , Nassir Navab

Lung ultrasound imaging is reaching growing interest from the scientific community. On one side, thanks to its harmlessness and high descriptive power, this kind of diagnostic imaging has been largely adopted in sensitive applications, like…

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