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Image segmentation methods have been utilized to determine the particle size distribution of crushed ores. Due to the complex working environment, high-powered computing equipment is difficult to deploy. At the same time, the ore…

Computer Vision and Pattern Recognition · Computer Science 2023-11-13 Guodong Sun , Delong Huang , Yuting Peng , Le Cheng , Bo Wu , Yang Zhang

The focus of this work is on rigorous mathematical analysis of the topological derivative based detection algorithms for the localization of an elastic inclusion of vanishing characteristic size. A filtered quadratic misfit is considered…

Analysis of PDEs · Mathematics 2012-11-29 Habib Ammari , Elie Bretin , Josselin Garnier , Wenjia Jing , Hyeonbae Kang , Abdul Wahab

Edges of an image are considered a crucial type of information. These can be extracted by applying edge detectors with different methodology. Edge detection is a vital step in computer vision tasks, because it is an essential issue for…

Computer Vision and Pattern Recognition · Computer Science 2016-08-10 Osvaldo Pereira , Esley Torre , Yasel Garcés , Roberto Rodríguez

Multi-compartment modeling of diffusion-weighted magnetic resonance imaging measurements is necessary for accurate brain connectivity analysis. Existing methods for estimating the number and orientations of fascicles in an imaging voxel…

Image and Video Processing · Electrical Eng. & Systems 2020-06-22 Davood Karimi , Lana Vasung , Camilo Jaimes , Fedel Machado-Rivas , Shadab Khan , Simon K. Warfield , Ali Gholipour

A new method for measuring \ngr cross sections aiming at enhanced signal-to-background ratio is presented. This new approach is based on the combination of the pulse-height weighting technique with a total energy detection system that…

Instrumentation and Detectors · Physics 2015-10-15 César Domingo-Pardo

We propose a new method for the characterization of stellar stratification in stellar systems. The method uses the mean-square radius (also called the Spitzer radius) of the system as a diagnostic tool. An estimate of the observable…

Astrophysics · Physics 2011-02-11 Dimitrios A. Gouliermis , Richard de Grijs , Yu Xin

The detection and parametrization of molecular clumps is the first step in studying them. We propose a method based on Local Density Clustering algorithm while physical parameters of those clumps are measured using the Multiple Gaussian…

Instrumentation and Methods for Astrophysics · Physics 2022-02-02 Xiaoyu Luo , Sheng Zheng , Yao Huang , Shuguang Zeng , Xiangyun Zeng , Zhibo Jiang , Zhiwei Chen

Secondary electron (SE) imaging techniques, such as scanning electron microscopy and helium ion microscopy (HIM), use electrons emitted by a sample in response to a focused beam of charged particles incident at a grid of raster scan…

Signal Processing · Electrical Eng. & Systems 2026-03-12 Vaibhav Choudhary , Akshay Agarwal , Vivek K Goyal

In this work, we propose to use a local clustering approach based on the sparse solution technique to study the medical image, especially the lung cancer image classification task. We view images as the vertices in a weighted graph and the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-22 Jackson Hamel , Ming-Jun Lai , Zhaiming Shen , Ye Tian

Features from multiple scales can greatly benefit the semantic edge detection task if they are well fused. However, the prevalent semantic edge detection methods apply a fixed weight fusion strategy where images with different semantics are…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Yuan Hu , Yunpeng Chen , Xiang Li , Jiashi Feng

Beam quality optimization in mammography traditionally considers detection of a target obscured by quantum noise on a homogenous background. It can be argued that this scheme does not correspond well to the clinical imaging task because…

Medical Physics · Physics 2021-01-26 Erik Fredenberg , Bjorn Svensson , Mats Danielsson , Barbara Lazzari , Bjorn Cederstrom

This paper presents and validates a novel lung nodule classification algorithm that uses multifractal features found in X-ray images. The proposed method includes a pre-processing step where two enhancement techniques are applied: histogram…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Isabella María Sierra-Ponce , Angela Mireya León-Mecías , Damian Valdés-Santiago

Automatic segmentation of multi-sequence (multi-modal) cardiac MR (CMR) images plays a significant role in diagnosis and management for a variety of cardiac diseases. However, the performance of relevant algorithms is significantly affected…

Image and Video Processing · Electrical Eng. & Systems 2020-09-08 Haochuan Jiang , Chengjia Wang , Agisilaos Chartsias , Sotirios A. Tsaftaris

The demand for efficient edge vision has spurred the interest in developing stochastic computing approaches for performing image processing tasks. Memristors with inherent stochasticity readily introduce probability into the computations…

Emerging Technologies · Computer Science 2025-05-16 Lekai Song , Pengyu Liu , Jingfang Pei , Yang Liu , Songwei Liu , Shengbo Wang , Leonard W. T. Ng , Tawfique Hasan , Kong-Pang Pun , Shuo Gao , Guohua Hu

The paper proposes a novel Kernelized image segmentation scheme for noisy images that utilizes the concept of Smallest Univalue Segment Assimilating Nucleus (SUSAN) and incorporates spatial constraints by computing circular colour map…

Computer Vision and Pattern Recognition · Computer Science 2016-03-30 Satrajit Mukherjee , Bodhisattwa Prasad Majumder , Aritran Piplai , Swagatam Das

Edge detection is one of the most principal techniques for detecting discontinuities in the gray levels of image pixels. The Modulation Transfer Function (MTF) is one of the main criteria for assessing imaging quality and is a parameter…

Computer Vision and Pattern Recognition · Computer Science 2015-05-21 Poorna Banerjee Dasgupta

Analytic methods are emerging in solid and configuration modeling, while providing new insights into a variety of shape and motion related problems by exploiting tools from group morphology, convolution algebras, and harmonic analysis.…

Computational Geometry · Computer Science 2017-12-05 Morad Behandish , Horea T. Ilies

Image Forgery Localization (IFL) technology aims to detect and locate the forged areas in an image, which is very important in the field of digital forensics. However, existing IFL methods suffer from feature degradation during training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yakun Niu , Pei Chen , Lei Zhang , Lei Tan , Yingjian Chen

To treat the problem of growing protoplanetary disc solids across the meter barrier, we consider a very simplified two-component coagulation-fragmentation model that consists of macroscopic boulders and smaller dust grains, the latter being…

Reliable and rapid morphology measurement of cellulose nanofibrils (CNFs) with a high level of branching and entanglement is crucial for quality control, grade definition, and investigating morphology-performance relationships in various…

Biological Physics · Physics 2025-09-09 Carlos Baez , Udita Ringania , Saad Bhamla , Robert J. Moon
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