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It has become routine in neuroscience studies to measure brain networks for different individuals using neuroimaging. These networks are typically expressed as adjacency matrices, with each cell containing a summary of connectivity between…

统计方法学 · 统计学 2022-06-30 Pritam Dey , Zhengwu Zhang , David B. Dunson

Reconstruction-based methods have been commonly used for unsupervised anomaly detection, in which a normal image is reconstructed and compared with the given test image to detect and locate anomalies. Recently, diffusion models have shown…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Di Wu , Shicai Fan , Xue Zhou , Li Yu , Yuzhong Deng , Jianxiao Zou , Baihong Lin

We introduce a novel approach for image edge detection based on pseudo-Boolean polynomials for image patches. We show that patches covering edge regions in the image result in pseudo-Boolean polynomials with higher degrees compared to…

计算机视觉与模式识别 · 计算机科学 2023-08-31 Tendai Mapungwana Chikake , Boris Goldengorin

In this paper we describe a new method for detecting and counting a repeating object in an image. While the method relies on a fairly sophisticated deformable part model, unlike existing techniques it estimates the model parameters in an…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Inbar Huberman , Raanan Fattal

In this paper, we address the problem of denoising images degraded by Poisson noise. We propose a new patch-based approach based on best linear prediction to estimate the underlying clean image. A simplified prediction formula is derived…

计算机视觉与模式识别 · 计算机科学 2018-03-02 Milad Niknejad , Mario A. T. Figueiredo

Obtaining ground truth data in medical imaging has difficulties due to the fact that it requires a lot of annotating time from the experts in the field. Also, when trained with supervised learning, it detects only the cases included in the…

计算机视觉与模式识别 · 计算机科学 2022-12-26 Inha Kang , Jinah Park

Parkinson's Disease (PD) affects millions globally, impacting movement. Prior research utilized deep learning for PD prediction, primarily focusing on medical images, neglecting the data's underlying manifold structure. This work proposes a…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Jun-En Ding , Chien-Chin Hsu , Feng Liu

Interferometric Particle Imaging (IPI) is a powerful technique to characterize aerosol particles, which so far has been applied only to particles larger than about 100 wavelengths. We extend its applicability to smaller ice crystals,…

光学 · 物理学 2026-03-24 Marc Brunel , Gilles Demange , Renaud Patte , Maxim Yurkin

Recent work in image processing suggests that operating on (overlapping) patches in an image may lead to state-of-the-art results. This has been demonstrated for a variety of problems including denoising, inpainting, deblurring, and…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Gregory Vaksman , Michael Zibulevsky , Michael Elad

Outlier detection and novelty detection are two important topics for anomaly detection. Suppose the majority of a dataset are drawn from a certain distribution, outlier detection and novelty detection both aim to detect data samples that do…

机器学习 · 计算机科学 2019-11-19 Min Du , Ruoxi Jia , Dawn Song

The detection and the quantification of anomalies in image data are critical tasks in industrial scenes such as detecting micro scratches on product. In recent years, due to the difficulty of defining anomalies and the limit of correcting…

计算机视觉与模式识别 · 计算机科学 2018-11-08 Masanari Kimura , Takashi Yanagihara

Reliably modeling normality and differentiating abnormal appearances from normal cases is a very appealing approach for detecting pathologies in medical images. A plethora of such unsupervised anomaly detection approaches has been made in…

计算机视觉与模式识别 · 计算机科学 2019-04-19 Christoph Baur , Benedikt Wiestler , Shadi Albarqouni , Nassir Navab

Deep learning based image recognition systems have been widely deployed on mobile devices in today's world. In recent studies, however, deep learning models are shown vulnerable to adversarial examples. One variant of adversarial examples,…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Tao Bai , Jinqi Luo , Jun Zhao

The detection of nuclei is one of the most fundamental components of computational pathology. Current state-of-the-art methods are based on deep learning, with the prerequisite that extensive labeled datasets are available. The increasing…

图像与视频处理 · 电气工程与系统科学 2019-07-11 Nicolas Brieu , Armin Meier , Ansh Kapil , Ralf Schoenmeyer , Christos G. Gavriel , Peter D. Caie , Günter Schmidt

Anomaly detection aims to recognize samples with anomalous and unusual patterns with respect to a set of normal data. This is significant for numerous domain applications, such as industrial inspection, medical imaging, and security…

机器学习 · 计算机科学 2020-03-30 Shuo Wang , Tianle Chen , Shangyu Chen , Carsten Rudolph , Surya Nepal , Marthie Grobler

Due to the intractability of characterizing everything that looks unlike the normal data, anomaly detection (AD) is traditionally treated as an unsupervised problem utilizing only normal samples. However, it has recently been found that…

计算机视觉与模式识别 · 计算机科学 2023-01-29 Philipp Liznerski , Lukas Ruff , Robert A. Vandermeulen , Billy Joe Franks , Klaus-Robert Müller , Marius Kloft

Despite inherent ill-definition, anomaly detection is a research endeavor of great interest within machine learning and visual scene understanding alike. Most commonly, anomaly detection is considered as the detection of outliers within a…

计算机视觉与模式识别 · 计算机科学 2019-05-03 Samet Akçay , Amir Atapour-Abarghouei , Toby P. Breckon

High-resolution images are prevalent in various applications, such as autonomous driving and computer-aided diagnosis. However, training neural networks on such images is computationally challenging and easily leads to out-of-memory errors…

计算机视觉与模式识别 · 计算机科学 2023-03-08 Benjamin Bergner , Christoph Lippert , Aravindh Mahendran

Standard interpolation techniques are implicitly based on the assumption that the signal lies on a homogeneous domain. In this letter, the proposed interpolation method instead exploits prior information about domain inhomogeneity,…

经典分析与常微分方程 · 数学 2017-04-14 Hamid Behjat , Zafer Doğan , Dimitri Van De Ville , Leif Sörnmo

A deep learning approach is proposed to detect data and system anomalies using high-resolution continuous point-on-wave (CPOW) or phasor measurements. Both the anomaly and anomaly-free measurement models are assumed to have unknown temporal…

系统与控制 · 电气工程与系统科学 2021-06-24 Kursat Rasim Mestav , Xinyi Wang , Lang Tong