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Implicit neural representations (INRs) have emerged as a powerful paradigm for medical imaging via physics-informed unsupervised learning. Classical INRs optimize an entire network from scratch for each subject, leading to inefficient…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Qing Wu , Xuanyu Tian , Chenhe Du , Haonan Zhang , Xiao Wang , Le Lu , Yuyao Zhang

Optical Coherence Tomography (OCT) image denoising is a fundamental problem as OCT images suffer from multiplicative speckle noise, resulting in poor visibility of retinal layers. The traditional denoising methods consider specific…

图像与视频处理 · 电气工程与系统科学 2022-09-21 Arka Saha , Sourya Sengupta

Intrinsic image decomposition is the process of separating the reflectance and shading layers of an image, which is a challenging and underdetermined problem. In this paper, we propose to systematically address this problem using a deep…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Sai Bi , Nima Khademi Kalantari , Ravi Ramamoorthi

In contrast to non-medical image denoising, where enhancing image clarity is the primary goal, medical image denoising warrants preservation of crucial features without introduction of new artifacts. However, many denoising methods that…

图像与视频处理 · 电气工程与系统科学 2024-12-02 Md. Touhidul Islam , Md. Abtahi M. Chowdhury , Sumaiya Salekin , Aye T. Maung , Akil A. Taki , Hafiz Imtiaz

Tracking the pose of instruments is a central problem in image-guided surgery. For microscopic scenarios, optical coherence tomography (OCT) is increasingly used as an imaging modality. OCT is suitable for accurate pose estimation due to…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Nils Gessert , Matthias Schlüter , Alexander Schlaefer

Applying standard algorithms to sparse data problems in photoacoustic tomography (PAT) yields low-quality images containing severe under-sampling artifacts. To some extent, these artifacts can be reduced by iterative image reconstruction…

数值分析 · 数学 2024-12-20 Stephan Antholzer , Johannes Schwab , Robert Nuster , Markus Haltmeier

Video inpainting aims to fill spatio-temporal holes with plausible content in a video. Despite tremendous progress of deep neural networks for image inpainting, it is challenging to extend these methods to the video domain due to the…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Dahun Kim , Sanghyun Woo , Joon-Young Lee , In So Kweon

Deep image inpainting research mainly focuses on constructing various neural network architectures or imposing novel optimization objectives. However, on the one hand, building a state-of-the-art deep inpainting model is an extremely…

计算机视觉与模式识别 · 计算机科学 2022-02-15 Yufeng Wang , Dan Li , Cong Xu , Min Yang

Longitudinal imaging is capable of capturing the static ana\-to\-mi\-cal structures and the dynamic changes of the morphology resulting from aging or disease progression. Self-supervised learning allows to learn new representation from…

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

计算机视觉与模式识别 · 计算机科学 2021-11-10 Hieu Le , Dimitris Samaras

In this paper, we consider convolutional neural networks operating on sparse inputs with an application to depth upsampling from sparse laser scan data. First, we show that traditional convolutional networks perform poorly when applied to…

计算机视觉与模式识别 · 计算机科学 2017-09-01 Jonas Uhrig , Nick Schneider , Lukas Schneider , Uwe Franke , Thomas Brox , Andreas Geiger

Indirect image registration is a promising technique to improve image reconstruction quality by providing a shape prior for the reconstruction task. In this paper, we propose a novel hybrid method that seeks to reconstruct high quality…

图像与视频处理 · 电气工程与系统科学 2019-12-18 Jiulong Liu , Angelica I. Aviles-Rivero , Hui Ji , Carola-Bibiane Schönlieb

Speckle noise and retinal shadows within OCT B-scans occlude important edges, fine textures and deep tissues, preventing accurate and robust diagnosis by algorithms and clinicians. We developed a single process that successfully removed…

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…

计算机视觉与模式识别 · 计算机科学 2018-01-10 Abhay Shah , Michael Abramoff , Xiaodong Wu

It is common in anthropology and paleontology to address questions about extant and extinct species through the quantification of osteological features observable in micro-computed tomographic (micro-CT) scans. In cases where remains were…

图像与视频处理 · 电气工程与系统科学 2021-04-23 Amirsaeed Yazdani , Yung-Chen Sun , Nicholas B. Stephens , Timothy Ryan , Vishal Monga

Sparse representation of images under certain transform domain has been playing a fundamental role in image restoration tasks. One such representative method is the widely used wavelet tight frame systems. Instead of adopting fixed filters…

计算机视觉与模式识别 · 计算机科学 2016-03-02 Dai-Qiang Chen

Multi-energy computed tomography (CT) with photon counting detectors (PCDs) enables spectral imaging as PCDs can assign the incoming photons to specific energy channels. However, PCDs with many spectral channels drastically increase the…

图像与视频处理 · 电气工程与系统科学 2022-11-03 Satu I. Inkinen , Mikael A. K. Brix , Miika T. Nieminen , Simon Arridge , Andreas Hauptmann

We propose a novel deep learning method for shadow removal. Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Hieu Le , Dimitris Samaras

Optical coherence tomography (OCT) suffers from speckle noise, causing the deterioration of image quality, especially in high-resolution modalities like visible light OCT (vis-OCT). The potential of conventional supervised deep learning…

图像与视频处理 · 电气工程与系统科学 2024-05-16 Lingyun Wang , Jose A Sahel , Shaohua Pi

Self-supervised learning has proven to be invaluable in making best use of all of the available data in biomedical image segmentation. One particularly simple and effective mechanism to achieve self-supervision is inpainting, the task of…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Subhradeep Kayal , Shuai Chen , Marleen de Bruijne