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The detection of the abnormal area from urban data is a significant research problem. However, to the best of our knowledge, previous methods designed on spatio-temporal anomalies are road-based or grid-based, which usually causes the data…

社会与信息网络 · 计算机科学 2020-07-16 Huaishao Luo , Chuishi Meng , Bowen Wu , Junbo Zhang , Tianrui Li , Yu Zheng

Recently dictionary screening has been proposed as an effective way to improve the computational efficiency of solving the lasso problem, which is one of the most commonly used method for learning sparse representations. To address today's…

机器学习 · 计算机科学 2016-08-29 Yun Wang , Peter J. Ramadge

A key recent advance in face recognition models a test face image as a sparse linear combination of a set of training face images. The resulting sparse representations have been shown to possess robustness against a variety of distortions…

计算机视觉与模式识别 · 计算机科学 2011-11-09 Yi Chen , Umamahesh Srinivas , Thong T. Do , Vishal Monga , Trac D. Tran

Autonomous driving is a challenging scenario for image segmentation due to the presence of uncontrolled environmental conditions and the eventually catastrophic consequences of failures. Previous work suggested that a biologically motivated…

计算机视觉与模式识别 · 计算机科学 2026-04-01 Pablo Hernández-Cámara , Jorge Vila-Tomás , Paula Dauden-Oliver , Nuria Alabau-Bosque , Valero Laparra , Jesús Malo

Each year, numerous segmentation and classification algorithms are invented or reused to solve problems where machine vision is needed. Generally, the efficiency of these algorithms is compared against the results given by one or many human…

计算机视觉与模式识别 · 计算机科学 2008-12-18 Arnaud Martin , Hicham Laanaya , Andreas Arnold-Bos

The impressive growth of data throughput in optical microscopy has triggered a widespread use of supervised learning (SL) models running on compressed image datasets for efficient automated analysis. However, since lossy image compression…

Compared with digital methods, sparse recovery based on spiking neural networks has great advantages like high computational efficiency and low power-consumption. However, current spiking algorithms cannot guarantee more accurate estimates…

信号处理 · 电气工程与系统科学 2020-09-22 Xiang Zhang , Lei Yu , Gang Zheng

Image Segmentation is one of the core tasks in Computer Vision and solving it often depends on modeling the image appearance data via the color distributions of each it its constituent regions. Whereas many segmentation algorithms handle…

计算机视觉与模式识别 · 计算机科学 2025-02-06 Jeova Farias Sales Rocha Neto

This chapter provides an overview of deep learning techniques for improving the spatial resolution of MRI, ranging from convolutional neural networks, generative adversarial networks, to more advanced models including transformers,…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Ziyu Li , Zihan Li , Haoxiang Li , Qiuyun Fan , Karla L. Miller , Wenchuan Wu , Akshay S. Chaudhari , Qiyuan Tian

We investigate the signal reconstruction performance of sparse linear regression in the presence of noise when piecewise continuous nonconvex penalties are used. Among such penalties, we focus on the SCAD penalty. The contributions of this…

机器学习 · 统计学 2020-01-08 Tomoyuki Obuchi , Ayaka Sakata

Segmentation of anatomical regions of interest such as vessels or small lesions in medical images is still a difficult problem that is often tackled with manual input by an expert. One of the major challenges for this task is that the…

图像与视频处理 · 电气工程与系统科学 2021-12-15 Tianyu Ma , Hang Zhang , Hanley Ong , Amar Vora , Thanh D. Nguyen , Ajay Gupta , Yi Wang , Mert Sabuncu

We present the first method to handle curvature regularity in region-based image segmentation and inpainting that is independent of initialization. To this end we start from a new formulation of length-based optimization schemes, based on…

计算机视觉与模式识别 · 计算机科学 2011-02-21 Thomas Schoenemann , Fredrik Kahl , Simon Masnou , Daniel Cremers

Medical image segmentation has been widely recognized as a pivot procedure for clinical diagnosis, analysis, and treatment planning. However, the laborious and expensive annotation process lags down the speed of further advances.…

计算机视觉与模式识别 · 计算机科学 2022-05-02 Zhuowei Li , Zihao Liu , Zhiqiang Hu , Qing Xia , Ruiqin Xiong , Shaoting Zhang , Dimitris Metaxas , Tingting Jiang

Inspired by the robustness and efficiency of sparse representation in sparse coding based image restoration models, we investigate the sparsity of neurons in deep networks. Our method structurally enforces sparsity constraints upon hidden…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Yuchen Fan , Jiahui Yu , Yiqun Mei , Yulun Zhang , Yun Fu , Ding Liu , Thomas S. Huang

There has been considerable progress in implicit neural representation to upscale an image to any arbitrary resolution. However, existing methods are based on defining a function to predict the Red, Green and Blue (RGB) value from just four…

计算机视觉与模式识别 · 计算机科学 2023-11-20 Rishav Bhardwaj , Janarthanam Jothi Balaji , Vasudevan Lakshminarayanan

The scarcity of labeled data often impedes the application of deep learning to the segmentation of medical images. Semi-supervised learning seeks to overcome this limitation by exploiting unlabeled examples in the learning process. In this…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Jizong Peng , Marco Pedersoli , Christian Desrosiers

With the recent advances in complex networks theory, graph-based techniques for image segmentation has attracted great attention recently. In order to segment the image into meaningful connected components, this paper proposes an image…

计算机视觉与模式识别 · 计算机科学 2019-07-12 Youssef Mourchid , Mohammed El Hassouni , Hocine Cherifi

Channel estimation poses significant challenges in millimeter-wave massive multiple-input multiple-output systems, especially when the base station has fewer radio-frequency chains than antennas. To address this challenge, one promising…

信息论 · 计算机科学 2024-08-07 Pengxia Wu , Julian Cheng , Yonina C. Eldar , John M. Cioffi

Semantic image segmentation is one of fastest growing areas in computer vision with a variety of applications. In many areas, such as robotics and autonomous vehicles, semantic image segmentation is crucial, since it provides the necessary…

计算机视觉与模式识别 · 计算机科学 2020-09-29 Georgios Takos

For medical image analysis, segmentation models trained on one or several domains lack generalization ability to unseen domains due to discrepancies between different data acquisition policies. We argue that the degeneration in segmentation…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Ziqi Zhou , Lei Qi , Yinghuan Shi