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Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited detector resolution has to be shared with the angular dimension. LF spatial super-resolution (SR) thus becomes an indispensable…

图像与视频处理 · 电气工程与系统科学 2021-10-11 Jing Jin , Junhui Hou , Zhiyu Zhu , Jie Chen , Sam Kwong

Population imaging studies rely upon good quality medical imagery before downstream image quantification. This study provides an automated approach to assess image quality from cardiovascular magnetic resonance (CMR) imaging at scale. We…

图像与视频处理 · 电气工程与系统科学 2025-10-28 Shahabedin Nabavi , Hossein Simchi , Mohsen Ebrahimi Moghaddam , Alejandro F. Frangi , Ahmad Ali Abin

Due to the imbalanced and limited data, semi-supervised medical image segmentation methods often fail to produce superior performance for some specific tailed classes. Inadequate training for those particular classes could introduce more…

计算机视觉与模式识别 · 计算机科学 2022-09-02 Hritam Basak , Sagnik Ghosal , Ram Sarkar

The single-scatter approximation is fundamental in many tomographic imaging problems including x-ray scatter imaging and optical scatter imaging for certain media. In all cases, noisy measurements are affected by both local scatter events…

图像与视频处理 · 电气工程与系统科学 2021-04-21 Michael R. Walker , Joseph A. O'Sullivan

We challenge the conventional view of neural network pruning as solely a compression technique, demonstrating that one-shot magnitude pruning serves as a powerful implicit regularizer for ASR. Using Whisper-small, we combine gradient- and…

音频与语音处理 · 电气工程与系统科学 2025-11-12 Julian Irigoyen , Arthur Söhler , Andreas Søeborg Kirkedal

The segmentation of coronary arteries in X-ray angiograms by convolutional neural networks (CNNs) is promising yet limited by the requirement of precisely annotating all pixels in a large number of training images, which is extremely…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Jingyang Zhang , Guotai Wang , Hongzhi Xie , Shuyang Zhang , Ning Huang , Shaoting Zhang , Lixu Gu

We present a novel spectral learning algorithm for simultaneous localization and mapping (SLAM) from range data with known correspondences. This algorithm is an instance of a general spectral system identification framework, from which it…

机器学习 · 计算机科学 2012-07-12 Byron Boots , Geoffrey J. Gordon

Speckle contrast optical spectroscopy (SCOS) offers a non-invasive and cost-effective method for monitoring cerebral blood flow (CBF). However, extracting accurate CBF from SCOS necessitates precise noise pre-calibration. Errors from this…

信号处理 · 电气工程与系统科学 2025-06-23 Ninghe Liu , Yu Xi Huang , Simon Mahler , Changhuei Yang

In this paper, we consider the problem of planar graph-based simultaneous localization and mapping (SLAM) that involves both poses of the autonomous agent and positions of observed landmarks. We present CPL-SLAM, an efficient and…

计算机视觉与模式识别 · 计算机科学 2020-07-15 Taosha Fan , Hanlin Wang , Michael Rubenstein , Todd Murphey

The acquisition of MRI images offers a trade-off in terms of acquisition time, spatial/temporal resolution and signal-to-noise ratio (SNR). Thus, for instance, increasing the time efficiency of MRI often comes at the expense of reduced SNR.…

计算机视觉与模式识别 · 计算机科学 2011-10-28 Sudipto Dolui , Alan Kuurstra , Iván C. Salgado Patarroyo , Oleg V. Michailovich

High-throughput interpretation of robotically gathered seafloor visual imagery can increase the efficiency of marine monitoring and exploration. Although recent research has suggested that location metadata can enhance self-supervised…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Cailei Liang , Adrian Bodenmann , Emma J Curtis , Samuel Simmons , Kazunori Nagano , Stan Brown , Adam Riese , Blair Thornton

We consider the minimization of non-convex functions that typically arise in machine learning. Specifically, we focus our attention on a variant of trust region methods known as cubic regularization. This approach is particularly attractive…

机器学习 · 计算机科学 2017-07-04 Jonas Moritz Kohler , Aurelien Lucchi

Automatic radiology report generation has attracted enormous research interest due to its practical value in reducing the workload of radiologists. However, simultaneously establishing global correspondences between the image (e.g., Chest…

计算机视觉与模式识别 · 计算机科学 2023-07-19 Yaowei Li , Bang Yang , Xuxin Cheng , Zhihong Zhu , Hongxiang Li , Yuexian Zou

A pilot project has been proceeded to map 1 deg$^2$ on the Galactic plane for radio recombination lines (RRLs) using the Five hundred meter Aperture Spherical Telescope (FAST). The motivation is to verify the techniques and reliabilities…

星系天体物理 · 物理学 2022-09-21 Bin Liu , Lixin Wang , Junzhi Wang , Bo Peng , Hongjun Wang

Data augmentation is usually used by supervised learning approaches for offline writer identification, but such approaches require extra training data and potentially lead to overfitting errors. In this study, a semi-supervised feature…

机器学习 · 计算机科学 2019-05-28 Shiming Chen , Yisong Wang , Chin-Teng Lin , Weiping Ding , Zehong Cao

Aggregating multi-site brain MRI data can enhance deep learning model training, but also introduces non-biological heterogeneity caused by site-specific variations (e.g., differences in scanner vendors, acquisition parameters, and imaging…

计算机视觉与模式识别 · 计算机科学 2026-01-14 Mengqi Wu , Yongheng Sun , Qianqian Wang , Pew-Thian Yap , Mingxia Liu

Image compression and denoising represent fundamental challenges in image processing with many real-world applications. To address practical demands, current solutions can be categorized into two main strategies: 1) sequential method; and…

图像与视频处理 · 电气工程与系统科学 2024-03-27 Shilv Cai , Xiaoguo Liang , Shuning Cao , Luxin Yan , Sheng Zhong , Liqun Chen , Xu Zou

The linear model uses the space defined by the input to project the target or desired signal and find the optimal set of model parameters. When the problem is nonlinear, the adaption requires nonlinear models for good performance, but it…

机器学习 · 计算机科学 2018-02-05 Zhengda Qin , Badong Chen , Nanning Zheng , Jose C. Principe

Federated learning (FL) is a promising way to use the computing power of mobile devices while maintaining the privacy of users. Current work in FL, however, makes the unrealistic assumption that the users have ground-truth labels on their…

机器学习 · 计算机科学 2021-03-10 Zhengming Zhang , Yaoqing Yang , Zhewei Yao , Yujun Yan , Joseph E. Gonzalez , Michael W. Mahoney

Short-time Fourier transform (STFT) is the most common window-based approach for analyzing the spectrotemporal dynamics of time series. To mitigate the effects of high variance on the spectral estimates due to finite-length, independent…

应用统计 · 统计学 2022-01-19 Andrew H. Song , Seong-Eun Kim , Emery N. Brown