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161 Results Found

  • Article
  • Open Access
1 Citations
3,530 Views
15 Pages

22 March 2021

Digital radiography is currently the main method of medical imaging diagnosis. It also has a wide range of applications across different fields. This study used radiation to conduct non-destructive visual imaging, and further established a quantitati...

  • Article
  • Open Access
12 Citations
4,489 Views
12 Pages

6 April 2021

Digital radiography (DR) is a mature technology and has been broadly used in medical diagnosis. Currently, it’s also used for fruit quality inspection in the market. This purpose of the study is to conduct non-destructive experiments for visual compa...

  • Article
  • Open Access
8 Citations
5,247 Views
16 Pages

8 October 2022

XOR-based Visual Cryptography Scheme (XOR-based VCS) is a method of secret image sharing. The principle of XOR-based VCS is to encrypt a secret image into several encrypted images, called shares. No information about the secret can be obtained from a...

  • Article
  • Open Access
22 Citations
3,698 Views
23 Pages

Flip Extended Visual Cryptography for Gray-Scale and Color Cover Images

  • Lu Wang,
  • Bin Yan,
  • Hong-Mei Yang and
  • Jeng-Shyang Pan

31 December 2020

Visual cryptography (VC) has found numerous applications in privacy protection, online transaction security, and voting security, etc. To counteract potential cheating attacks, Lin et al. proposed flip visual cryptography in 2010, where a second secr...

  • Article
  • Open Access
13 Citations
2,659 Views
32 Pages

A Novel Artificial Visual System for Motion Direction Detection in Grayscale Images

  • Sichen Tao,
  • Yuki Todo,
  • Zheng Tang,
  • Bin Li,
  • Zhiming Zhang and
  • Riku Inoue

17 August 2022

How specific features of the environment are represented in the mammalian brain is an important unexplained mystery in neuroscience. Visual information is considered to be captured most preferentially by the brain. As one of the visual information el...

  • Article
  • Open Access
21 Citations
5,208 Views
16 Pages

5 July 2019

In the process of oil exploitation, the water level of an oil well can be predicted and the position of reservoir can be estimated by measuring the water content of crude oil, with reference for the automatic production of high efficiency in the oil...

  • Article
  • Open Access
8 Citations
3,474 Views
18 Pages

7 October 2021

Grayscale morphology is a powerful tool in image, video, and visual applications. A reconfigurable processor is proposed for grayscale image morphological processing. The architecture of the processor is a combination of a reconfigurable grayscale pr...

  • Article
  • Open Access
19 Citations
6,546 Views
16 Pages

Learning-Based Colorization of Grayscale Aerial Images Using Random Forest Regression

  • Dae Kyo Seo,
  • Yong Hyun Kim,
  • Yang Dam Eo and
  • Wan Yong Park

31 July 2018

Image colorization assigns colors to a grayscale image, which is an important yet difficult image-processing task encountered in various applications. In particular, grayscale aerial image colorization is a poorly posed problem that is affected by th...

  • Article
  • Open Access
1 Citations
1,901 Views
16 Pages

22 September 2022

As a medium for transmitting visual information, image is a direct reflection of the objective existence of the natural world. Grayscale images lack more visual information than color images. Therefore, it is of great significance to study the colori...

  • Article
  • Open Access
1 Citations
2,054 Views
15 Pages

The visual system of sighted animals plays a critical role in providing information about the environment, including motion details necessary for survival. Over the past few years, numerous studies have explored the mechanism of motion direction dete...

  • Article
  • Open Access
4 Citations
2,410 Views
15 Pages

22 February 2022

Secret image sharing (SIS) scheme is a secret image encoding and decoding scheme that reconstructs the secret image only if the number of participants is sufficient. In contrast, inadequate participants gain no information about the secret image. Two...

  • Article
  • Open Access
6 Citations
3,686 Views
20 Pages

29 September 2024

Aiming to solve the challenges of difficult training, mode collapse in current generative adversarial networks (GANs), and the efficiency issue of requiring multiple samples for Denoising Diffusion Probabilistic Models (DDPM), this paper proposes a s...

  • Article
  • Open Access
43 Citations
7,060 Views
21 Pages

11 January 2024

Grayscale image processing is a key research area in the field of computer vision and image analysis, where image quality and visualization effects may be seriously damaged by high-density salt and pepper noise. A traditional median filter for noise...

  • Article
  • Open Access
1,155 Views
11 Pages

Improving OCTA Visualization of Macular Neovascularization via a Grayscale Inversion Method

  • Shinichiro Chujo,
  • Yu-Chien Chung,
  • Alberto Quarta,
  • Hyunduck Kwak,
  • Ceren Soylu,
  • Rouzbeh Abbasgholizadeh,
  • Mai Alhelaly,
  • Raiyna Rattu,
  • Giulia Corradetti and
  • Muneeswar Gupta Nittala
  • + 1 author

25 September 2025

Background: Age-related macular degeneration is a major cause of vision loss, and improved visualization of macular neovascularization (MNV) on OCT angiography (OCTA) could enhance clinical assessment. This study aimed to establish a simple and acces...

  • Article
  • Open Access
11 Citations
2,672 Views
15 Pages

24 November 2022

The failure process of a coal body around a borehole has progressive characteristics. Image characteristics can visually characterize the stress and failure characteristics of the coal body around a borehole during progressive failure. To investigate...

  • Article
  • Open Access
14 Citations
3,941 Views
21 Pages

16 August 2022

Typical visual simultaneous localization and mapping (SLAM) systems rely on front-end odometry for feature extraction and matching to establish the relations between adjacent images. In a low-light environment, the image obtained by a camera is dim a...

  • Article
  • Open Access
67 Citations
11,562 Views
34 Pages

Infrared Image Enhancement Using Adaptive Histogram Partition and Brightness Correction

  • Minjie Wan,
  • Guohua Gu,
  • Weixian Qian,
  • Kan Ren,
  • Qian Chen and
  • Xavier Maldague

27 April 2018

Infrared image enhancement is a crucial pre-processing technique in intelligent urban surveillance systems for Smart City applications. Existing grayscale mapping-based algorithms always suffer from over-enhancement of the background, noise amplifica...

  • Article
  • Open Access
19 Citations
3,458 Views
25 Pages

23 April 2024

Accurate and timely fault detection is crucial for ensuring the smooth operation and longevity of rotating machinery. This study explores the effectiveness of image-based approaches for machine fault diagnosis using data from a 6DOF IMU (Inertial Mea...

  • Article
  • Open Access
1 Citations
1,942 Views
13 Pages

The Mechanism of Orientation Detection Based on Artificial Visual System for Greyscale Images

  • Xiliang Zhang,
  • Sichen Tao,
  • Zheng Tang,
  • Shuxin Zheng and
  • Yoki Todo

15 June 2023

Human visual system is a crucial component of the nervous system, enabling us to perceive and understand the surrounding world. Advancements in research on the visual system have profound implications for our understanding of both biological and comp...

  • Article
  • Open Access
15 Citations
3,843 Views
23 Pages

Dual Histogram Equalization Algorithm Based on Adaptive Image Correction

  • Bowen Ye,
  • Sun Jin,
  • Bing Li,
  • Shuaiyu Yan and
  • Deng Zhang

25 September 2023

For the visual measurement of moving arm holes in complex working conditions, a histogram equalization algorithm can be used to improve image contrast. To lessen the problems of image brightness shift, image over-enhancement, and gray-level merging t...

  • Article
  • Open Access
2 Citations
3,108 Views
22 Pages

11 October 2020

The detection and description of features is one basic technique for many visual robot navigation systems in both indoor and outdoor environments. Matched features from two or more images are used to solve navigation problems, e.g., by establishing s...

  • Article
  • Open Access
7 Citations
1,703 Views
22 Pages

Due to the detrimental impact of fog on image quality, dehazing maritime images is essential for applications such as safe maritime navigation, surveillance, environmental monitoring, and marine research. Traditional dehazing techniques, which are de...

  • Article
  • Open Access
11 Citations
2,643 Views
16 Pages

1 September 2023

Due to the increasing capabilities of cybercriminals and the vast quantity of sensitive data, it is necessary to protect remote sensing images during data transmission with “Belt and Road” countries. Joint image compression and encryption...

  • Article
  • Open Access
44 Citations
9,916 Views
15 Pages

Color Doppler Ultrasound Improves Machine Learning Diagnosis of Breast Cancer

  • Afaf F. Moustafa,
  • Theodore W. Cary,
  • Laith R. Sultan,
  • Susan M. Schultz,
  • Emily F. Conant,
  • Santosh S. Venkatesh and
  • Chandra M. Sehgal

Color Doppler is used in the clinic for visually assessing the vascularity of breast masses on ultrasound, to aid in determining the likelihood of malignancy. In this study, quantitative color Doppler radiomics features were algorithmically extracted...

  • Article
  • Open Access
75 Citations
5,431 Views
24 Pages

27 February 2021

Visual navigation is developing rapidly and is of great significance to improve agricultural automation. The most important issue involved in visual navigation is extracting a guidance path from agricultural field images. Traditional image segmentati...

  • Article
  • Open Access
2 Citations
2,083 Views
19 Pages

To objectively quantify the level of visual interference induced by lasers, we developed a biomimetic optical system designed to emulate human vision. This system is based on an optical model of the eye and synthetic imaging principles, allowing it t...

  • Article
  • Open Access
478 Views
23 Pages

DCT Underwater Image Enhancement Based on Attenuation Analysis

  • Leyuan Wang,
  • Miao Yang,
  • Can Pan and
  • Jiaju Tao

25 November 2025

Underwater images often suffer from color distortion, reduced contrast, and blurred details due to the selective absorption and scattering of light by water, which limits the performance of underwater visual tasks. To address these issues, this paper...

  • Article
  • Open Access
2 Citations
1,937 Views
15 Pages

3 December 2020

Atomic force acoustic microscopy (AFAM) can provide surface morphology and internal structures of the samples simultaneously, with broad potential in non-destructive imaging of cells. As the output of AFAM, morphology and acoustic images reflect diff...

  • Article
  • Open Access
32 Citations
16,430 Views
14 Pages

A Method for Digital Color Analysis of Spalted Wood Using Scion Image Software

  • Sara C. Robinson,
  • Peter E. Laks and
  • Ethan J. Turnquist

16 February 2009

Color analysis of spalted wood surfaces requires a non-subjective, repeatable method for determining percent of pigmentation on the wood surface. Previously published methods used human visual perception with a square grid overlay to determine the pe...

  • Article
  • Open Access
7 Citations
5,135 Views
12 Pages

This paper introduces a novel method for image colorization that utilizes a color transformer and generative adversarial networks (GANs) to address the challenge of generating visually appealing colorized images. Conventional approaches often struggl...

  • Article
  • Open Access
24 Citations
4,557 Views
23 Pages

21 January 2022

Pixel-based images captured by a charge-coupled device (CCD) with infrared (IR) LEDs around the image sensor are the well-known CCD Red–Green–Blue IR (the so-called CCD RGB-IR) data. The CCD RGB-IR data are generally acquired for video su...

  • Article
  • Open Access
29 Citations
9,007 Views
12 Pages

Digital 3D Wood Texture: UV-Curable Inkjet Printing on Board Surface

  • Ruijuan Sang,
  • Adam John Manley,
  • Zhihui Wu and
  • Xinhao Feng

24 November 2020

Natural wood textures are appreciated in most forest products industries for their appealing visual characteristics including grain and color, but also their fine surface tactile sensation. The following presents an ultraviolet (UV)-curable inkjet te...

  • Article
  • Open Access
110 Citations
21,195 Views
25 Pages

Crack Detection in Concrete Structures Using Deep Learning

  • Vaughn Peter Golding,
  • Zahra Gharineiat,
  • Hafiz Suliman Munawar and
  • Fahim Ullah

2 July 2022

Infrastructure, such as buildings, bridges, pavement, etc., needs to be examined periodically to maintain its reliability and structural health. Visual signs of cracks and depressions indicate stress and wear and tear over time, leading to failure/co...

  • Essay
  • Open Access
18 Citations
6,446 Views
10 Pages

3 September 2021

Dual-energy computed tomography (DECT) has been reported to successfully identify bone marrow oedema (BME) in various traumatic settings. DECT has multiple strengths, including the availability of both a 3D view of the anatomical area studied and of...

  • Article
  • Open Access
1 Citations
1,334 Views
23 Pages

8 May 2025

This study improves existing protection strategies for image processing models by embedding invisible watermarks into model outputs to verify the sources of images. Most current methods rely on CNN-based architectures, which are limited by their loca...

  • Article
  • Open Access
20 Citations
6,633 Views
30 Pages

Visual Saliency and Image Reconstruction from EEG Signals via an Effective Geometric Deep Network-Based Generative Adversarial Network

  • Nastaran Khaleghi,
  • Tohid Yousefi Rezaii,
  • Soosan Beheshti,
  • Saeed Meshgini,
  • Sobhan Sheykhivand and
  • Sebelan Danishvar

7 November 2022

Reaching out the function of the brain in perceiving input data from the outside world is one of the great targets of neuroscience. Neural decoding helps us to model the connection between brain activities and the visual stimulation. The reconstructi...

  • Article
  • Open Access
13 Citations
3,661 Views
18 Pages

22 August 2023

The noise interference of side-scan sonar images is stronger than that of optical images, and the gray level is uneven. To solve this problem, we propose a side-scan sonar image enhancement method based on multi-stage repairing image fusion. Firstly,...

  • Article
  • Open Access
2,572 Views
21 Pages

4 January 2024

When the workpiece surface exhibits strong reflectivity, it becomes challenging to obtain accurate key measurements using non-contact, visual measurement techniques due to poor image quality. In this paper, we propose a high-precision measurement met...

  • Article
  • Open Access
4 Citations
1,480 Views
27 Pages

19 November 2024

Visual complexity is a crucial criterion for evaluating the quality of urban environments and a key dimension in arousal theory and visual preference theory. Objectively quantifying visual complexity holds significant importance for decision-making s...

  • Article
  • Open Access
3 Citations
4,079 Views
13 Pages

Single Image Super Resolution Technique: An Extension to True Color Images

  • Muhammad Abeer Irfan,
  • Sahib Khan,
  • Arslan Arif,
  • Khalil Khan,
  • Aleem Khaliq,
  • Zain Anwer Memon and
  • Muhammad Ismail

2 April 2019

The super-resolution (SR) technique reconstructs a high-resolution image from single or multiple low-resolution images. SR has gained much attention over the past decade, as it has significant applications in our daily life. This paper provides a new...

  • Article
  • Open Access
5 Citations
2,699 Views
33 Pages

Progressive Secret Sharing with Adaptive Priority and Perfect Reconstruction

  • Heri Prasetyo,
  • Chih-Hsien Hsia and
  • Alim Wicaksono Hari Prayuda

A new technique for progressive visual secret sharing (PVSS) with adaptive priority weight is proposed in this paper. This approach employs the bitwise and eXclusive-OR (XOR) based approaches for generating a set of shared images from a single secret...

  • Article
  • Open Access
2 Citations
1,111 Views
32 Pages

Compression Ratio as Picture-Wise Just Noticeable Difference Predictor

  • Nenad Stojanović,
  • Boban Bondžulić,
  • Vladimir Lukin,
  • Dimitrije Bujaković,
  • Sergii Kryvenko and
  • Oleg Ieremeiev

28 April 2025

This paper presents the interesting results of applying compression ratio (CR) in the prediction of the boundary between visually lossless and visually lossy compression, which is of particular importance in perceptual image compression. The predicti...

  • Article
  • Open Access
8 Citations
4,083 Views
36 Pages

Multi-Modal Medical Image Fusion Based on FusionNet in YIQ Color Space

  • Kai Guo,
  • Xiongfei Li,
  • Hongrui Zang and
  • Tiehu Fan

17 December 2020

In order to obtain the physiological information and key features of source images to the maximum extent, improve the visual effect and clarity of the fused image, and reduce the computation, a multi-modal medical image fusion framework based on feat...

  • Article
  • Open Access
6 Citations
8,434 Views
14 Pages

Tangent-Based Binary Image Abstraction

  • Yi-Ta Wu,
  • Jeng-Sheng Yeh,
  • Fu-Che Wu and
  • Yung-Yu Chuang

We present a tangent flow-based image abstraction framework that turns a color or grayscale image into a two-tone image, which contains only black and white color, but retains sufficient information such that the viewer can still recognize the main c...

  • Article
  • Open Access
3 Citations
3,974 Views
28 Pages

19 January 2025

Edge detection methods are significant in medical imaging-assisted diagnosis. However, existing methods based on grayscale gradient computation still need to be optimized in practicality, especially in terms of actual visual quality and sensitivity t...

  • Article
  • Open Access
1 Citations
1,077 Views
10 Pages

Polarized light imaging (PLI) has been effective in visualizing and quantifying collagen content. Collagen-specific data are often overlaid over the tissue image for visualization. However, such contextual tissue images are typically in grayscale and...

  • Article
  • Open Access
16 Citations
3,930 Views
21 Pages

A Fusion-Based Defogging Algorithm

  • Ting Chen,
  • Mengni Liu,
  • Tao Gao,
  • Peng Cheng,
  • Shaohui Mei and
  • Yonghui Li

17 January 2022

To solve the problem that traditional dark channel is not suitable for a large sky area and can easyily distort defogged images, we propose a novel fusion-based defogging algorithm. Firstly, an improved remote sensing image segmentation algorithm is...

  • Article
  • Open Access
11 Citations
3,890 Views
24 Pages

Multivariate Analysis of Concrete Image Using Thermography and Edge Detection

  • Bubryur Kim,
  • Se-Woon Choi,
  • Gang Hu,
  • Dong-Eun Lee and
  • Ronnie O. Serfa Juan

7 November 2021

With the growing demand for structural health monitoring system applications, data imaging is an ideal method for performing regular routine maintenance inspections. Image analysis can provide invaluable information about the health conditions of a s...

  • Article
  • Open Access
2 Citations
2,061 Views
13 Pages

26 April 2023

The advantages of hyperspectral imaging in videodensitometry are presented and discussed with the example of extracts from 70 Polish grasses. An inexpensive microscope camera was modified to cover the infrared spectrum range, and then 11 combinations...

  • Article
  • Open Access
2 Citations
3,288 Views
15 Pages

The reliability and operational safety of an aircraft engine gas turbine are extremely important in terms of its operation. In the course of operation, these turbines undergo complex thermal, mechanical, aerodynamic, and chemical exhaust gas loads. D...

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