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1,931 Results Found

  • Article
  • Open Access
5 Citations
2,405 Views
17 Pages

A Realistic Hand Image Composition Method for Palmprint ROI Embedding Attack

  • Licheng Yan,
  • Lu Leng,
  • Andrew Beng Jin Teoh and
  • Cheonshik Kim

7 February 2024

Palmprint recognition (PPR) has recently garnered attention due to its robustness and accuracy. Many PPR methods rely on preprocessing the region of interest (ROI). However, the emergence of ROI attacks capable of generating synthetic ROI images pose...

  • Article
  • Open Access
56 Citations
10,141 Views
15 Pages

Assessment of ROI Selection for Facial Video-Based rPPG

  • Dae-Yeol Kim,
  • Kwangkee Lee and
  • Chae-Bong Sohn

27 November 2021

In general, facial image-based remote photoplethysmography (rPPG) methods use color-based and patch-based region-of-interest (ROI) selection methods to estimate the blood volume pulse (BVP) and beats per minute (BPM). Anatomically, the thickness of t...

  • Article
  • Open Access
104 Citations
10,019 Views
28 Pages

Robust Finger Vein ROI Localization Based on Flexible Segmentation

  • Yu Lu,
  • Shan Juan Xie,
  • Sook Yoon,
  • Jucheng Yang and
  • Dong Sun Park

24 October 2013

Finger veins have been proved to be an effective biometric for personal identification in the recent years. However, finger vein images are easily affected by influences such as image translation, orientation, scale, scattering, finger structure, com...

  • Article
  • Open Access
45 Citations
11,417 Views
19 Pages

Efficient Method for POI/ROI Discovery Using Flickr Geotagged Photos

  • Chiao-Ling Kuo,
  • Ta-Chien Chan,
  • I-Chun Fan and
  • Alexander Zipf

In the era of big data, ubiquitous Flickr geotagged photos have opened a considerable opportunity for discovering valuable geographic information. Point of interest (POI) and region of interest (ROI) are significant reference data that are widely use...

  • Article
  • Open Access
1 Citations
2,226 Views
11 Pages

Detection of Alzheimer’s Disease Using Hybrid Meta-ROI of MRI Structural Images

  • Xiaoming Zheng and
  • on behalf of the Alzheimer’s Disease Neuroimaging Initiative

2 October 2024

Background: The averaged cortical thickness of meta-ROI is currently being used for the diagnosis and prognosis of Alzheimer’s disease (AD) using structural MRI brain images. The purpose of this work is to present a hybrid meta-ROI for the dete...

  • Article
  • Open Access
36 Citations
10,385 Views
11 Pages

Thermal-Infrared Pedestrian ROI Extraction through Thermal and Motion Information Fusion

  • Antonio Fernández-Caballero,
  • María T. López and
  • Juan Serrano-Cuerda

10 April 2014

This paper investigates the robustness of a new thermal-infrared pedestrian detection system under different outdoor environmental conditions. In first place the algorithm for pedestrian ROI extraction in thermal-infrared video based on both thermal...

  • Article
  • Open Access
29 Citations
3,810 Views
21 Pages

18 July 2020

Region of interest (ROI) localization is one of the key preprocessing technologies for a finger-vein identification system, so an effective ROI definition can improve the matching accuracy. However, due to the impact of uneven illumination, equipment...

  • Article
  • Open Access
4 Citations
5,347 Views
18 Pages

Workers’ Healthcare Assistance Model (WHAM): Development, Validation, and Assessment of Sustainable Return on Investment (S-ROI)

  • Lilian Monteiro Ferrari Viterbo,
  • André Santana Costa,
  • Diogo Guedes Vidal and
  • Maria Alzira Pimenta Dinis

The present study aimed to present and validate the Worker´s Healthcare Assistance Model (WHAM), which includes an interdisciplinary approach to health risk management in search of integral and integrated health, considering economic sustainabi...

  • Article
  • Open Access
1,367 Views
11 Pages

Evaluating Epicardial Fat Density Using ROI-Based Analysis: A Feasibility Study

  • Giovanni Lorusso,
  • Nicola Maggialetti,
  • Luca De Marco,
  • Sterpeta Guerra,
  • Ilaria Villanova,
  • Sara Greco,
  • Chiara Morelli,
  • Nicola Maria Lucarelli,
  • Michele Mariano and
  • Amato Antonio Stabile Ianora

Epicardial fat density (EFD) is implicated in cardiovascular diseases. This study aimed to assess the regional variability of epicardial fat density (EFD) using coronary computed tomography (CCT) and evaluate the feasibility of ROI-based measurements...

  • Article
  • Open Access
327 Views
14 Pages

Deep Learning (DL) has undergone widespread adoption for medical image analysis and diagnosis. Numerous studies have explored mammographic image analysis for breast cancer screening. For this study, we assessed the hypothesis that stratifying mammogr...

  • Article
  • Open Access
2 Citations
4,405 Views
11 Pages

This research aims to analyse the financial performance of companies using one of the most used profitability indicators, the return on investment (ROI), which measures the company’s performance in terms of the profit generated over time. To th...

  • Article
  • Open Access
19 Citations
4,122 Views
18 Pages

A Novel ROI Extraction Method Based on the Characteristics of the Original Finger Vein Image

  • Huimin Lu,
  • Yifan Wang,
  • Ruoran Gao,
  • Chengcheng Zhao and
  • Yang Li

27 June 2021

As the second generation of biometric technology, finger vein recognition has become a research hotspot due to its advantages such as high security, and living body recognition. In recent years, the global pandemic has promoted the development of con...

  • Article
  • Open Access
302 Views
28 Pages

9 January 2026

Power-equipment fault detection is challenging in real-world inspections due to subtle defect cues and cluttered backgrounds. This paper proposes an improved YOLOv12-based framework for multi-class power defect detection. We introduce a Prior-Guided...

  • Article
  • Open Access
22 Citations
3,785 Views
19 Pages

25 March 2022

Heart rate (HR) and respiratory rate (fR) can be estimated by processing videos framing the upper body and face regions without any physical contact with the subject. This paper proposed a technique for continuously monitoring HR and fR via a multi-R...

  • Article
  • Open Access
378 Views
19 Pages

29 December 2025

Accurate differentiation of malignant from benign thyroid nodules on ultrasound remains challenging and existing deep models typically operate on isolated ROI crops or whole images, ignoring structured peri-lesional context. We present a simple, repr...

  • Article
  • Open Access
8 Citations
2,956 Views
16 Pages

SV-FPN: Small Object Feature Enhancement and Variance-Guided RoI Fusion for Feature Pyramid Networks

  • Qianhui Yang,
  • Changlun Zhang,
  • Hengyou Wang,
  • Qiang He and
  • Lianzhi Huo

Small object detection is one of the research difficulties in object detection, and Feature Pyramid Networks (FPN) is a common feature extractor in deep learning; thus, improving the results of small object detection based on FPN is of great signific...

  • Article
  • Open Access
5 Citations
3,440 Views
16 Pages

30 April 2023

The calculation of the return on investment (ROI) allows the estimation of the opportunity cost of a series of interventions and can therefore help to make allocative choices. The objective of this study is to estimate the ROI of three vaccinations (...

  • Article
  • Open Access
299 Views
18 Pages

10 February 2026

Startups face critical challenges in prioritizing requirements under severe resource constraints. Although methods such as RICE and ICE are known, prior studies show that decisions often default to ad hoc judgments and stakeholder opinions. This pape...

  • Article
  • Open Access
2 Citations
2,044 Views
17 Pages

22 May 2025

Laser vision sensors for weld seam extraction face critical challenges due to arc light and spatter interference in welding environments. This paper presents a real-time weld seam extraction method. The proposed framework enhances robustness through...

  • Article
  • Open Access
240 Views
18 Pages

A Comparative Investigation of Study ROI: Multimodal Personalized English Learning Environment Versus Traditional English Learning Environment

  • Cunqian You,
  • Yang Wang,
  • Ping Li,
  • Xiaoyu Zhao,
  • Huijuan Lu,
  • Xiaojun Wang,
  • Yudong Yao and
  • Wenzhong Chen

Limited study time constrains university EFL vocabulary learning, so efficiency should be evaluated alongside accuracy. A web-based multimodal environment was developed that uses a large language model for contextualized drills and tutoring, text-to-...

  • Article
  • Open Access
2 Citations
1,522 Views
22 Pages

29 May 2024

Ground Penetrating Radar (GPR) is a non-destructive geophysical technique utilizing electromagnetic pulses to detect subsurface material properties. The analysis of regions of interest (ROIs) in GPR images often entails the identification of hyperbol...

  • Article
  • Open Access
227 Views
22 Pages

Navigation line extraction is essential for visual navigation in agricultural machinery, yet existing methods often perform poorly in complex environments due to challenges such as weed interference, broken crop rows, and leaf adhesion. To enhance th...

  • Abstract
  • Open Access
960 Views
1 Page

The Effect of Controlled Mixing on ROY Polymorphism

  • Margot Van Nerom,
  • Dominique Maes,
  • James F. Lutsko and
  • Quentin Galand

In this work, we report the investigation of various experimental conditions and their influence on the polymorphism of 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophen carbonitrile, commonly known as ROY. These conditions include an in-house-developed m...

  • Article
  • Open Access
22 Citations
8,408 Views
10 Pages

Polymorph Selection of ROY by Flow-Driven Crystallization

  • Iwona Ziemecka,
  • Sindy Gokalp,
  • Sander Stroobants,
  • Fabian Brau,
  • Dominique Maes and
  • Anne De Wit

9 July 2019

The selection of polymorphs of the organic compound 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrile, ROY, is studied experimentally in the confined space between two horizontal glass plates when an acetone solution of ROY of variable concen...

  • Article
  • Open Access
10 Citations
2,769 Views
11 Pages

The Effect of Controlled Mixing on ROY Polymorphism

  • Margot Van Nerom,
  • Pierre Gelin,
  • Mehrnaz Hashemiesfahan,
  • Wim De Malsche,
  • James F. Lutsko,
  • Dominique Maes and
  • Quentin Galand

20 April 2022

We report the investigation of various experimental conditions and their influence on polymorphism of 5-methyl-2-[(2-nitrophenyl)amino]-3-thiophenecarbonitrile, commonly known as ROY. These conditions include an in-house-developed microfluidic chip w...

  • Review
  • Open Access
2 Citations
3,298 Views
23 Pages

Spectral technology is a scientific method used to study and analyze substances. In recent years, the role of spectral technology in the non-destructive testing (NDT) of fruits has become increasingly important, and it is expected that its applicatio...

  • Article
  • Open Access
4 Citations
2,033 Views
29 Pages

Plant Species Diversity and the Interconnection of Ritual Beliefs and Local Horticulture in Heet Sip Song Ceremonies, Roi Et Province, Northeastern Thailand

  • Piyaporn Saensouk,
  • Surapon Saensouk,
  • Thawatphong Boonma,
  • Areerat Ragsasilp,
  • Auemporn Junsongduang,
  • Khamfa Chanthavongsa and
  • Tammanoon Jitpromma

This study explores the ethnobotanical significance of plant species used in the Heet Sip Song (Twelve Monthly Merit-Making) ceremonies in Roi Et Province, Northeastern Thailand. A total of 80 plant species across 73 genera and 42 families were docum...

  • Article
  • Open Access
2 Citations
2,481 Views
22 Pages

Ethnomedicinal Properties of Wild Edible Fruit Plants and Their Horticultural Potential Among Indigenous Isan Communities in Roi Et Province, Northeastern Thailand

  • Piyaporn Saensouk,
  • Surapon Saensouk,
  • Thawatphong Boonma,
  • Auemporn Junsongduang,
  • Min Khant Naing and
  • Tammanoon Jitpromma

Wild edible fruit plants are integral to the cultural, nutritional, medicinal, and economic practices of Indigenous Isan communities in Roi Et Province, northeastern Thailand, a region characterized by plateau and lowland topography and a tropical mo...

  • Article
  • Open Access
8 Citations
1,863 Views
13 Pages

1 September 2023

In this paper, the four-index generalization of the classical Le Roy function is considered on a wider set of parameters and its order and type are given. Letting one of the parameters take non-negative integer values, a family of functions with such...

  • Article
  • Open Access
8 Citations
7,151 Views
15 Pages

Genome and Transcriptome Sequencing of casper and roy Zebrafish Mutants Provides Novel Genetic Clues for Iridophore Loss

  • Chao Bian,
  • Weiting Chen,
  • Zhiqiang Ruan,
  • Zhe Hu,
  • Yu Huang,
  • Yunyun Lv,
  • Tengfei Xu,
  • Jia Li,
  • Qiong Shi and
  • Wei Ge

casper has been a widely used transparent mutant of zebrafish. It possesses a combined loss of reflective iridophores and light-absorbing melanophores, which gives rise to its almost transparent trunk throughout larval and adult stages. Nevertheless,...

  • Article
  • Open Access
7 Citations
2,524 Views
19 Pages

Automatic ROI Setting Method Based on LSC for a Traffic Congestion Area

  • Yang He,
  • Lisheng Jin,
  • Huanhuan Wang,
  • Zhen Huo,
  • Guangqi Wang and
  • Xinyu Sun

2 December 2022

Congested regions in videos put forward higher requirements for target detection algorithms, and the key detection of congested regions provides optimization directions for improving the accuracy of detection algorithms. In order to make the target d...

  • Feature Paper
  • Review
  • Open Access
9 Citations
2,372 Views
15 Pages

12 June 2021

This study is based on a part of the results obtained in the author’s publications. An enumerable family of the Le Roy type functions is considered herein. The asymptotic formula for these special functions in the cases of ‘large’ values of indices,...

  • Article
  • Open Access
2 Citations
3,052 Views
20 Pages

An ROI Optimization Method Based on Dynamic Estimation Adjustment Model

  • Ziyue Li,
  • Qinghua Zeng,
  • Yuchao Liu and
  • Jianye Liu

5 May 2023

An important research direction in the field of traffic light recognition of autonomous systems is to accurately obtain the region of interest (ROI) of the image through the multi-sensor assisted method. Dynamic evaluation of the performance of the m...

  • Article
  • Open Access
1 Citations
1,525 Views
10 Pages

Deep learning has achieved widespread adoption for medical image diagnosis, with extensive research dedicated to mammographic image analysis for breast cancer screening. This study investigates the hypothesis that incorporating region-of-interest (RO...

  • Article
  • Open Access
5 Citations
1,578 Views
12 Pages

Partial Sums of the Normalized Le Roy-Type Mittag-Leffler Function

  • Basem Aref Frasin and
  • Luminiţa-Ioana Cotîrlă

29 April 2023

Recently, some researchers determined lower bounds for the normalized version of some special functions to its sequence of partial sums, e.g., Struve and Dini functions, Wright functions and Miller–Ross functions. In this paper, we determine lo...

  • Protocol
  • Open Access
9 Citations
3,928 Views
10 Pages

2 August 2021

The zebrafish provided an excellent platform to study the genetic and molecular approach of cellular phenotype-based cardiac research. We designed a novel protocol to develop the transparent transgenic zebrafish model to study annexin-5 activity in t...

  • Article
  • Open Access
8 Citations
4,437 Views
16 Pages

24 March 2022

Variable-length license plate segmentation and recognition has always been a challenging barrier in the application of intelligent transportation systems. Previous approaches mainly concern fixed-length license plates, lacking adaptability for variab...

  • Article
  • Open Access
100 Views
15 Pages

Identification of Predictors of Adaptability in Older Adults Based on the Roy Adaptation Model Using Machine Learning

  • Javier Gaviria Chavarro,
  • Miguel Ángel Gómez García,
  • Jose Manuel Alcaide Leyva,
  • Alfonsina del Cristo Martínez Gutiérrez and
  • Rosa Nury Zambrano Bermeo

24 February 2026

Background: The Callista Roy Adaptation Model posits that adaptation in later life emerges from the interaction among physical, psychological, and social dimensions. However, empirical evidence integrating these domains through predictive approaches...

  • Article
  • Open Access
15 Citations
3,924 Views
23 Pages

Body and Hand–Object ROI-Based Behavior Recognition Using Deep Learning

  • Yeong-Hyeon Byeon,
  • Dohyung Kim,
  • Jaeyeon Lee and
  • Keun-Chang Kwak

6 March 2021

Behavior recognition has applications in automatic crime monitoring, automatic sports video analysis, and context awareness of so-called silver robots. In this study, we employ deep learning to recognize behavior based on body and hand–object interac...

  • Article
  • Open Access
9 Citations
3,789 Views
11 Pages

Stability of Liver Radiomics across Different 3D ROI Sizes—An MRI In Vivo Study

  • Laura J. Jensen,
  • Damon Kim,
  • Thomas Elgeti,
  • Ingo G. Steffen,
  • Bernd Hamm and
  • Sebastian N. Nagel

3 December 2021

We aimed to evaluate the stability of radiomic features in the liver of healthy individuals across different three-dimensional regions of interest (3D ROI) sizes in T1-weighted (T1w) and T2-weighted (T2w) images from different MR scanners. We retrosp...

  • Article
  • Open Access
3 Citations
5,245 Views
23 Pages

GAN-Based ROI Image Translation Method for Predicting Image after Hair Transplant Surgery

  • Do-Yeon Hwang,
  • Seok-Hwan Choi,
  • Jinmyeong Shin,
  • Moonkyu Kim and
  • Yoon-Ho Choi

9 December 2021

In this paper, we propose a new deep learning-based image translation method to predict and generate images after hair transplant surgery from images before hair transplant surgery. Since existing image translation models use a naive strategy that tr...

  • Article
  • Open Access
3 Citations
3,502 Views
16 Pages

2 August 2022

For millimeter-wave (MMW) imaging security systems, the image resolution promisingly determines the performance of suspicious target detection and recognition. Conventional synthetic aperture radar (SAR) imaging algorithms only provide limited resolu...

  • Review
  • Open Access
12 Citations
24,898 Views
47 Pages

16 October 2024

Globally, organizations invest an estimated USD 60 billion annually in leadership development; however, the workplace application of learning is typically low, and many programs underperform or fail, resulting in wasted time and money and potential h...

  • Proceeding Paper
  • Open Access
3 Citations
1,639 Views
12 Pages

1 November 2022

Finding classified rectangular regions of interest (ROIs) in underwater images is still a challenge, and more so if the images pose low quality with respect to illumination conditions, sharpness, and noise. These ROIs can help humans find relevant re...

  • Article
  • Open Access
23 Citations
4,152 Views
20 Pages

A Generic Pixel Pitch Calibration Method for Fundus Camera via Automated ROI Extraction

  • Tengfei Long,
  • Yi Xu,
  • Haidong Zou,
  • Lina Lu,
  • Tianyi Yuan,
  • Zhou Dong,
  • Jiqun Dong,
  • Xin Ke,
  • Saiguang Ling and
  • Yingyan Ma

7 November 2022

Pixel pitch calibration is an essential step to make the fundus structures in the fundus image quantitatively measurable, which is important for the diagnosis and treatment of many diseases, e.g., diabetes, arteriosclerosis, hereditary optic atrophy,...

  • Article
  • Open Access
2,594 Views
20 Pages

An All-Hazards Return on Investment (ROI) Model to Evaluate U.S. Army Installation Resilient Strategies

  • Gregory S. Parnell,
  • Robert M. Curry,
  • Eric Specking,
  • Anthony Beger,
  • Randy Buchanan,
  • Susan Wolters,
  • John P. Richards and
  • Patrick R. Ables

31 January 2025

The paper describes our project to develop, verify, and deploy an All-Hazards Return of Investment (ROI) model for the U. S. Army Engineer Research and Development Center (ERDC) to provide army installations with a decision support tool for evaluatin...

  • Article
  • Open Access
687 Views
15 Pages

11 December 2025

Rapid detection and precise segmentation of the weld seam region of interest (ROI) remain a core challenge in robotic intelligent grinding. To address this issue, this paper proposes a method for weld seam ROI detection and segmentation based on the...

  • Article
  • Open Access
4 Citations
3,539 Views
20 Pages

Fast and Accurate ROI Extraction for Non-Contact Dorsal Hand Vein Detection in Complex Backgrounds Based on Improved U-Net

  • Rongwen Zhang,
  • Xiangqun Zou,
  • Xiaoling Deng,
  • Ziyang Wang,
  • Yifan Chen,
  • Chengrui Lin,
  • Hongxin Xing and
  • Fen Dai

10 May 2023

In response to the difficulty of traditional image processing methods to quickly and accurately extract regions of interest from non-contact dorsal hand vein images in complex backgrounds, this study proposes a model based on an improved U-Net for do...

  • Article
  • Open Access
1 Citations
1,648 Views
13 Pages

Improving Diagnostic Robustness of Perfusion MRI in Brain Metastases: A Focus on 3D ROI Techniques and Automatic Thresholding

  • Stéphanie Rudzinska-Mistarz,
  • Brieg Dissaux,
  • Laurie Marchi,
  • Anne-Charlotte Roux,
  • Alexis Perrot,
  • François Lucia,
  • Romuald Seizeur,
  • Olivier Pradier,
  • Gurvan Dissaux and
  • Vincent Bourbonne
  • + 1 author

22 June 2025

Background: Distinguishing tumor recurrence from radiation necrosis after radiotherapy for brain metastases remains a major diagnostic challenge. Perfusion MRI, particularly the measurement of relative cerebral blood volume (rCBV), is a commonly used...

  • Article
  • Open Access
809 Views
19 Pages

10 September 2025

This study proposes a region of interest (ROI) setting method to improve the accuracy and efficiency of fluorescence detection in a compact real-time multiplex fluorescence PCR system. Conventional commercial real-time PCR systems are limited in poin...

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