Results 1 to 10 of about 32,167 (215)

Facial soft-tissue analysis in undergraduate dental education: comparison of 2D photographs and images derived from 3D facial scans [PDF]

open access: yesBMC Medical Education
Background Two-dimensional (2D) photographs are routinely used for teaching facial soft-tissue analysis, whereas three-dimensional (3D) facial scans are increasingly used in clinical orthodontics.
Janine Sambale   +3 more
doaj   +2 more sources

A Digital Grayscale Generation Equipment for Image Display Standardization

open access: yesApplied Sciences, 2020
The standardization of grayscale display is essentially significant for image signal communication, transmission, and terminal reading. The key step of this standardization is establishing a traceable equipment of grayscale.
Yiqin Jiang   +7 more
doaj   +3 more sources

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

open access: yesApplied Sciences, 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 the ...
Dae Kyo Seo   +3 more
doaj   +3 more sources

An Unsupervised Image Enhancement Framework for Multiple Fault Detection of Insulators [PDF]

open access: yesSensors
To address the problem of low detection accuracy caused by uneven brightness distribution in transmission line inspection images under complex lighting conditions, this paper proposes an unsupervised image enhancement method that integrates grayscale ...
Jiaxin Guo   +5 more
doaj   +2 more sources

Remote Sensing Image Pan-sharpening Method Based on Generative Adversarial Network [PDF]

open access: yesJisuanji kexue, 2023
Remote sensing image pan-sharpening methods are generally based on Wald protocol,resulting in blurred texture details,colors and ambiguous boundaries of the reconstructed images.To solve the problem,a remote sensing image pan-sharpening method based on ...
YAN Yan, SUI Yi, SI Jianwei
doaj   +1 more source

Noninvasive assessment of hepatic steatosis using a pathologic reference standard: comparison of CT, MRI, and US-based techniques [PDF]

open access: yesUltrasonography, 2022
Purpose The present study compared the performance of computed tomography (CT), magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF), controlled attenuation parameter (CAP), grayscale ultrasonography (US), and attenuation imaging ...
Jae Seok Bae   +6 more
doaj   +1 more source

Aiming for G7 Master Compliance through a Color Managed Digital Printing Workflow (CMDPW): Comparison of Compliance with Output Device Profile (ODP) vs. Device Link Profile (DLP) [PDF]

open access: yesJournal of Graphic Engineering and Design, 2021
The purpose of this applied research was to determine the influence of device link profile (DLP) in the color reproduction aimed at the G7 master compliance.
Haji Naik Dharavath
doaj   +2 more sources

A Fast-Response Driving Waveform Design Based on High-Frequency Voltage for Three-Color Electrophoretic Displays

open access: yesMicromachines, 2021
Three-color electrophoretic displays (EPDs) have the characteristics of colorful display, reflection display, low power consumption, and flexible display. However, due to the addition of red particles, response time of three-color EPDs is increased.
Hu Zhang   +7 more
doaj   +1 more source

Design of Driving Waveform for Shortening Response Time of Black Particles and White Particles in Three-Color Electrophoretic Displays

open access: yesMicromachines, 2021
The shortage of color in traditional electrophoretic displays (EPDs) can be compensated by three-color EPDs. However, the response time of black particles and white particles is increased. A new driving waveform based on the principle of three-color EPDs
Hu Zhang   +11 more
doaj   +1 more source

Design of environmental adaptive gray tracking sensor

open access: yesDianzi Jishu Yingyong, 2022
In this paper, a new gray-scale tracking sensor is designed to solve the problem that the gray-scale tracking sensor cannot automatically adjust the reference voltage when the ambient light changes. The sensor combines a microprocessor with a traditional
Chen Xucong   +3 more
doaj   +1 more source

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