Results 51 to 60 of about 128,276 (265)

Reduced Calibration Strategy Using a Basketball for RGB-D Cameras

open access: yesMathematics, 2022
RGB-D cameras produce depth and color information commonly used in the 3D reconstruction and vision computer areas. Different cameras with the same model usually produce images with different calibration errors. The color and depth layer usually requires
Luis-Rogelio Roman-Rivera   +5 more
doaj   +1 more source

Precise Quantification of Angiogenesis in 3D Biomaterials Using in Vitro CAM Models: Enhancing 3Rs in Research and Minimizing in Vivo Dependency

open access: yesAdvanced Functional Materials, EarlyView.
The study develops elastin–fibrin scaffolds and evaluates angiogenesis using the chorioallantoic membrane (CAM) model. Advanced imaging with confocal microscopy and Indocyanine Green dye enables precise 3D quantification of vascular networks. Findings demonstrate superior microvessel visualization compared to micro‐CT using Microfil and Optiray 350 ...
Ece Melis Er   +8 more
wiley   +1 more source

A hybrid technique for face detection in color images [PDF]

open access: yes, 2005
In this paper, a hybrid technique for face detection in color images is presented. The proposed technique combines three analysis models, namely skin detection, automatic eye localization, and appearance-based face/nonface classification.
Cooray, Saman H., O'Connor, Noel E.
core   +1 more source

Quantifying Electron and Ion Transfers in Contact Electrification with Ionomers

open access: yesAdvanced Functional Materials, EarlyView.
The concurrent existence of both electron and ion transfers in solid‐ionomer contact electrification is reported. The ion transfer contributes significantly to the process of contact electrification, especially at high humidity, although only less than 2% of ions participate in the ion transfer, suggesting that there is room for further performance ...
Xiaoting Ma   +5 more
wiley   +1 more source

Underwater image quality enhancement through Rayleigh-stretching and averaging image planes

open access: yesInternational Journal of Naval Architecture and Ocean Engineering, 2014
Visibility in underwater images is usually poor because of the attenuation of light in the water that causes low contrast and color variation. In this paper, a new approach for underwater image quality improvement is presented.
Ghani Ahmad Shahrizan Abdul   +1 more
doaj   +3 more sources

An Efficient Color Space for Deep-Learning Based Traffic Light Recognition

open access: yesJournal of Advanced Transportation, 2018
Traffic light recognition is an essential task for an advanced driving assistance system (ADAS) as well as for autonomous vehicles. Recently, deep-learning has become increasingly popular in vision-based object recognition owing to its high performance ...
Hyun-Koo Kim, Ju H. Park, Ho-Youl Jung
doaj   +1 more source

An Enhanced YOLOv5 Model for Greenhouse Cucumber Fruit Recognition Based on Color Space Features

open access: yesAgriculture, 2022
The identification of cucumber fruit is an essential procedure in automated harvesting in greenhouses. In order to enhance the identification ability of object detection models for cucumber fruit harvesting, an extended RGB image dataset (n = 801) with ...
Ning Wang   +8 more
doaj   +1 more source

Tip of the red giant branch distances to the dwarf galaxies dw1335-29 and dw1340-30 in the Centaurus group [PDF]

open access: yes, 2018
The abundance and spatial distribution of dwarf galaxies are excellent empirical benchmarks to test models of structure formation on small scales. The nearby Centaurus group, with its two subgroups centered on CenA and M83, stands out as an important ...
Jerjen, Helmut   +2 more
core   +3 more sources

Structural and Chemical Studies of the Nanoscale Modifications Induced by Swift Heavy Ion Irradiation in SrTiO3 at Grazing Incidence

open access: yesAdvanced Functional Materials, EarlyView.
The nanoscale structural and chemical transformations in SrTiO3 under Swift‐Heavy‐Ion irradiation at grazing incidence are investigated, emphasizing the formation of well‐ordered nanohillocks at the surface of the material, demonstrating significant material decomposition in the created hillocks with: a phase separation of SrO and TiOx, a reduction in ...
Mohammad S. Jamal   +12 more
wiley   +1 more source

Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes

open access: yesCrystals, 2020
Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under
En-Lin Hsiang   +5 more
doaj   +1 more source

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