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Dictionary learning algorithms or supervised deep convolution networks have considerably improved the efficiency of predefined feature representations such as SIFT. We introduce a deep scattering convolution network, with predefined wavelet…

计算机视觉与模式识别 · 计算机科学 2015-06-02 Edouard Oyallon , Stéphane Mallat

The transformation from evanescent waves to propagation waves is the key mechanism for the realization of some super-resolution imaging methods. By using the recursive Green function and scattering-matrix theory, we investigated in details…

介观与纳米尺度物理 · 物理学 2017-09-12 Dequan Zhang , Yuchen Xu , Ke Xu , Hao Zhang , Jing Li , Heyuan Zhu , Costas Soukoulis

Collective insights from a group of experts have always proven to outperform an individual's best diagnostic for clinical tasks. For the task of medical image segmentation, existing research on AI-based alternatives focuses more on…

计算机视觉与模式识别 · 计算机科学 2023-04-11 Aimon Rahman , Jeya Maria Jose Valanarasu , Ilker Hacihaliloglu , Vishal M Patel

The objective of this paper is a model that is able to discover, track and segment multiple moving objects in a video. We make four contributions: First, we introduce an object-centric segmentation model with a depth-ordered layer…

计算机视觉与模式识别 · 计算机科学 2022-11-15 Junyu Xie , Weidi Xie , Andrew Zisserman

We present a quantitative study of coherent array imaging of remote sources in randomly perturbed waveguides with bounded cross-section. We study how long range cumulative scattering by perturbations of the boundary and the medium impedes…

数值分析 · 数学 2013-06-10 Liliana Borcea , Josselin Garnier , Chrysoula Tsogka

The aim of this paper is to provide and numerically test in the presence of measurement noise a procedure for target classification in wave imaging based on comparing frequency-dependent distribution descriptors with precomputed ones in a…

偏微分方程分析 · 数学 2018-06-21 Lorenzo Baldassari

AIMS: Clinical radiographic imaging is seated upon the principle of differential keV photon transmission through an object. At clinical x-ray energies the scattering of photons causes signal noise and is utilized solely for transmission…

医学物理 · 物理学 2022-06-22 Ida Häggström , Lukas M. Carter , Thomas J. Fuchs , Adam L. Kesner

Human perception is structured around objects which form the basis for our higher-level cognition and impressive systematic generalization abilities. Yet most work on representation learning focuses on feature learning without even…

Imaging through scattering media is a challenging problem owing to speckle decorrelations from perturbations in the media itself. For in-line imaging modalities, which are appealing because they are compact, require no moving parts, and are…

光学 · 物理学 2022-05-16 Siddharth Rawat , Jonathan Wendoloski , Anna Wang

A periodizing scheme and the method of fundamental solutions are used to solve acoustic wave scattering from doubly-periodic three-dimensional multilayered media. A scattered wave in a unit cell is represented by the sum of the near and…

数值分析 · 数学 2019-06-26 Min Hyung Cho

Achieving machine intelligence requires a smooth integration of perception and reasoning, yet models developed to date tend to specialize in one or the other; sophisticated manipulation of symbols acquired from rich perceptual spaces has so…

机器学习 · 计算机科学 2018-09-14 Eric Crawford , Guillaume Rabusseau , Joelle Pineau

Image recognition tasks that involve identifying parts of an object or the contents of a vessel can be viewed as a hierarchical problem, which can be solved by initial recognition of the main object, followed by recognition of its parts or…

计算机视觉与模式识别 · 计算机科学 2017-10-17 Sagi Eppel

Dictionary learning is a challenge topic in many image processing areas. The basic goal is to learn a sparse representation from an overcomplete basis set. Due to combining the advantages of generic multiscale representations with learning…

计算机视觉与模式识别 · 计算机科学 2017-04-17 Rui Chen , Huizhu Jia , Xiaodong Xie , Wen Gao

Deep-learning algorithms enable precise image recognition based on high-dimensional hierarchical image features. Here, we report the development and implementation of a deep-learning-based image segmentation algorithm in an autonomous…

图像与视频处理 · 电气工程与系统科学 2020-03-26 Satoru Masubuchi , Eisuke Watanabe , Yuta Seo , Shota Okazaki , Takao Sasagawa , Kenji Watanabe , Takashi Taniguchi , Tomoki Machida

We employ ptychography, a phase-retrieval imaging technique, to show experimentally for the first time that a partially coherent high-energy matter (electron) wave emanating from an extended source can be decomposed into a set of mutually…

介观与纳米尺度物理 · 物理学 2017-01-04 S. Cao , P. Kok , P. Li , A. M. Maiden , J. M. Rodenburg

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

计算机视觉与模式识别 · 计算机科学 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

The ability to describe images with natural language sentences is the hallmark for image and language understanding. Such a system has wide ranging applications such as annotating images and using natural sentences to search for images.In…

机器学习 · 计算机科学 2016-01-15 Afroze Ibrahim Baqapuri

Full-wave electromagnetic simulations of electrically large arrays of complex antennas and scatterers are challenging, as they consume large amount of memory and require long CPU times. This paper presents a new reduced-order modeling…

计算工程、金融与科学 · 计算机科学 2018-12-05 Utkarsh R. Patel , Piero Triverio , Sean V. Hum

Data imbalance between common and rare diseases during model training often causes intelligent diagnosis systems to have biased predictions towards common diseases. The state-of-the-art approaches apply a two-stage learning framework to…

计算机视觉与模式识别 · 计算机科学 2022-07-15 Chenghua Zeng , Huijuan Lu , Kanghao Chen , Ruixuan Wang , Wei-Shi Zheng

This review presents various image segmentation methods using complex networks. Image segmentation is one of the important steps in image analysis as it helps analyze and understand complex images. At first, it has been tried to classify…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Amin Rezaei , Fatemeh Asadi